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Commit 88238805 authored by Linus Torvalds's avatar Linus Torvalds
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Merge tag 'for-linus-5.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux 

Pull orangefs updates from Mike Marshall:
 "This includes one fix and our "Orangefs through the pagecache" patch
  series which greatly improves our small IO performance and helps us
  pass more xfstests than before.

  Fix:
   - orangefs: truncate before updating size

  Pagecache series:
   - all the rest"

* tag 'for-linus-5.2-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux: (23 commits)
  orangefs: truncate before updating size
  orangefs: copy Orangefs-sized blocks into the pagecache if possible.
  orangefs: pass slot index back to readpage.
  orangefs: remember count when reading.
  orangefs: add orangefs_revalidate_mapping
  orangefs: implement writepages
  orangefs: write range tracking
  orangefs: avoid fsync service operation on flush
  orangefs: skip inode writeout if nothing to write
  orangefs: move do_readv_writev to direct_IO
  orangefs: do not return successful read when the client-core disappeared
  orangefs: implement writepage
  orangefs: migrate to generic_file_read_iter
  orangefs: service ops done for writeback are not killable
  orangefs: remove orangefs_readpages
  orangefs: reorganize setattr functions to track attribute changes
  orangefs: let setattr write to cached inode
  orangefs: set up and use backing_dev_info
  orangefs: hold i_lock during inode_getattr
  orangefs: update attributes rather than relying on server
  ...
parents dce45af5 33713cd0
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Showing with 1300 additions and 490 deletions
fs/orangefs/acl.c
View file @ 88238805
......@@ -142,7 +142,7 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
rc = __orangefs_set_acl(inode, acl, type);
} else {
iattr.ia_valid = ATTR_MODE;
rc = orangefs_inode_setattr(inode, &iattr);
rc = __orangefs_setattr(inode, &iattr);
}
return rc;
......@@ -185,7 +185,7 @@ int orangefs_init_acl(struct inode *inode, struct inode *dir)
inode->i_mode = mode;
iattr.ia_mode = mode;
iattr.ia_valid |= ATTR_MODE;
orangefs_inode_setattr(inode, &iattr);
__orangefs_setattr(inode, &iattr);
}
return error;
......
fs/orangefs/file.c
View file @ 88238805
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
......@@ -44,15 +45,16 @@ static int flush_racache(struct inode *inode)
/*
* Post and wait for the I/O upcall to finish
*/
static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
loff_t *offset, struct iov_iter *iter,
size_t total_size, loff_t readahead_size)
ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode,
loff_t *offset, struct iov_iter *iter, size_t total_size,
loff_t readahead_size, struct orangefs_write_range *wr, int *index_return)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
struct orangefs_kernel_op_s *new_op = NULL;
int buffer_index = -1;
ssize_t ret;
size_t copy_amount;
new_op = op_alloc(ORANGEFS_VFS_OP_FILE_IO);
if (!new_op)
......@@ -84,6 +86,10 @@ static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inod
new_op->upcall.req.io.buf_index = buffer_index;
new_op->upcall.req.io.count = total_size;
new_op->upcall.req.io.offset = *offset;
if (type == ORANGEFS_IO_WRITE && wr) {
new_op->upcall.uid = from_kuid(&init_user_ns, wr->uid);
new_op->upcall.gid = from_kgid(&init_user_ns, wr->gid);
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): offset: %llu total_size: %zd\n",
......@@ -168,6 +174,9 @@ static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inod
* trigger the write.
*/
case OP_VFS_STATE_INPROGR:
if (type == ORANGEFS_IO_READ)
ret = -EINTR;
else
ret = total_size;
break;
default:
......@@ -204,8 +213,25 @@ static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inod
* can futher be kernel-space or user-space addresses.
* or it can pointers to struct page's
*/
/*
* When reading, readahead_size will only be zero when
* we're doing O_DIRECT, otherwise we got here from
* orangefs_readpage.
*
* If we got here from orangefs_readpage we want to
* copy either a page or the whole file into the io
* vector, whichever is smaller.
*/
if (readahead_size)
copy_amount =
min(new_op->downcall.resp.io.amt_complete,
(__s64)PAGE_SIZE);
else
copy_amount = new_op->downcall.resp.io.amt_complete;
ret = orangefs_bufmap_copy_to_iovec(iter, buffer_index,
new_op->downcall.resp.io.amt_complete);
copy_amount);
if (ret < 0) {
gossip_err("%s: Failed to copy-out buffers. Please make sure that the pvfs2-client is running (%ld)\n",
__func__, (long)ret);
......@@ -223,246 +249,112 @@ static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inod
out:
if (buffer_index >= 0) {
if ((readahead_size) && (type == ORANGEFS_IO_READ)) {
/* readpage */
*index_return = buffer_index;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s: hold on to buffer_index :%d:\n",
__func__, buffer_index);
} else {
/* O_DIRECT */
orangefs_bufmap_put(buffer_index);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): PUT buffer_index %d\n",
__func__, handle, buffer_index);
}
buffer_index = -1;
}
op_release(new_op);
return ret;
}
/*
* Common entry point for read/write/readv/writev
* This function will dispatch it to either the direct I/O
* or buffered I/O path depending on the mount options and/or
* augmented/extended metadata attached to the file.
* Note: File extended attributes override any mount options.
*/
static ssize_t do_readv_writev(enum ORANGEFS_io_type type, struct file *file,
loff_t *offset, struct iov_iter *iter)
int orangefs_revalidate_mapping(struct inode *inode)
{
struct inode *inode = file->f_mapping->host;
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
size_t count = iov_iter_count(iter);
ssize_t total_count = 0;
ssize_t ret = -EINVAL;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n",
__func__,
handle,
(int)count);
struct address_space *mapping = inode->i_mapping;
unsigned long *bitlock = &orangefs_inode->bitlock;
int ret;
if (type == ORANGEFS_IO_WRITE) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): proceeding with offset : %llu, "
"size %d\n",
__func__,
handle,
llu(*offset),
(int)count);
while (1) {
ret = wait_on_bit(bitlock, 1, TASK_KILLABLE);
if (ret)
return ret;
spin_lock(&inode->i_lock);
if (test_bit(1, bitlock)) {
spin_unlock(&inode->i_lock);
continue;
}
if (count == 0) {
ret = 0;
goto out;
if (!time_before(jiffies, orangefs_inode->mapping_time))
break;
spin_unlock(&inode->i_lock);
return 0;
}
while (iov_iter_count(iter)) {
size_t each_count = iov_iter_count(iter);
size_t amt_complete;
set_bit(1, bitlock);
smp_wmb();
spin_unlock(&inode->i_lock);
/* how much to transfer in this loop iteration */
if (each_count > orangefs_bufmap_size_query())
each_count = orangefs_bufmap_size_query();
unmap_mapping_range(mapping, 0, 0, 0);
ret = filemap_write_and_wait(mapping);
if (!ret)
ret = invalidate_inode_pages2(mapping);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): size of each_count(%d)\n",
__func__,
handle,
(int)each_count);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): BEFORE wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
ret = wait_for_direct_io(type, inode, offset, iter,
each_count, 0);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): return from wait_for_io:%d\n",
__func__,
handle,
(int)ret);
if (ret < 0)
goto out;
*offset += ret;
total_count += ret;
amt_complete = ret;
orangefs_inode->mapping_time = jiffies +
orangefs_cache_timeout_msecs*HZ/1000;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): AFTER wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
/*
* if we got a short I/O operations,
* fall out and return what we got so far
*/
if (amt_complete < each_count)
break;
} /*end while */
out:
if (total_count > 0)
ret = total_count;
if (ret > 0) {
if (type == ORANGEFS_IO_READ) {
file_accessed(file);
} else {
file_update_time(file);
/*
* Must invalidate to ensure write loop doesn't
* prevent kernel from reading updated
* attribute. Size probably changed because of
* the write, and other clients could update
* any other attribute.
*/
orangefs_inode->getattr_time = jiffies - 1;
}
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): Value(%d) returned.\n",
__func__,
handle,
(int)ret);
clear_bit(1, bitlock);
smp_mb__after_atomic();
wake_up_bit(bitlock, 1);
return ret;
}
/*
* Read data from a specified offset in a file (referenced by inode).
* Data may be placed either in a user or kernel buffer.
*/
ssize_t orangefs_inode_read(struct inode *inode,
struct iov_iter *iter,
loff_t *offset,
loff_t readahead_size)
static ssize_t orangefs_file_read_iter(struct kiocb *iocb,
struct iov_iter *iter)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
size_t count = iov_iter_count(iter);
size_t bufmap_size;
ssize_t ret = -EINVAL;
int ret;
struct orangefs_read_options *ro;
orangefs_stats.reads++;
bufmap_size = orangefs_bufmap_size_query();
if (count > bufmap_size) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s: count is too large (%zd/%zd)!\n",
__func__, count, bufmap_size);
return -EINVAL;
/*
* Remember how they set "count" in read(2) or pread(2) or whatever -
* users can use count as a knob to control orangefs io size and later
* we can try to help them fill as many pages as possible in readpage.
*/
if (!iocb->ki_filp->private_data) {
iocb->ki_filp->private_data = kmalloc(sizeof *ro, GFP_KERNEL);
if (!iocb->ki_filp->private_data)
return(ENOMEM);
ro = iocb->ki_filp->private_data;
ro->blksiz = iter->count;
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU) %zd@%llu\n",
__func__,
&orangefs_inode->refn.khandle,
count,
llu(*offset));
ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, offset, iter,
count, readahead_size);
if (ret > 0)
*offset += ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): Value(%zd) returned.\n",
__func__,
&orangefs_inode->refn.khandle,
ret);
down_read(&file_inode(iocb->ki_filp)->i_rwsem);
ret = orangefs_revalidate_mapping(file_inode(iocb->ki_filp));
if (ret)
goto out;
ret = generic_file_read_iter(iocb, iter);
out:
up_read(&file_inode(iocb->ki_filp)->i_rwsem);
return ret;
}
static ssize_t orangefs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
loff_t pos = iocb->ki_pos;
ssize_t rc = 0;
gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_read_iter\n");
orangefs_stats.reads++;
rc = do_readv_writev(ORANGEFS_IO_READ, file, &pos, iter);
iocb->ki_pos = pos;
return rc;
}
static ssize_t orangefs_file_write_iter(struct kiocb *iocb, struct iov_iter *iter)
static ssize_t orangefs_file_write_iter(struct kiocb *iocb,
struct iov_iter *iter)
{
struct file *file = iocb->ki_filp;
loff_t pos;
ssize_t rc;
gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_write_iter\n");
inode_lock(file->f_mapping->host);
/* Make sure generic_write_checks sees an up to date inode size. */
if (file->f_flags & O_APPEND) {
rc = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
if (rc == -ESTALE)
rc = -EIO;
if (rc) {
gossip_err("%s: orangefs_inode_getattr failed, "
"rc:%zd:.\n", __func__, rc);
goto out;
}
}
rc = generic_write_checks(iocb, iter);
if (rc <= 0) {
gossip_err("%s: generic_write_checks failed, rc:%zd:.\n",
__func__, rc);
goto out;
}
/*
* if we are appending, generic_write_checks would have updated
* pos to the end of the file, so we will wait till now to set
* pos...
*/
pos = iocb->ki_pos;
rc = do_readv_writev(ORANGEFS_IO_WRITE,
file,
&pos,
iter);
if (rc < 0) {
gossip_err("%s: do_readv_writev failed, rc:%zd:.\n",
__func__, rc);
goto out;
}
iocb->ki_pos = pos;
int ret;
orangefs_stats.writes++;
out:
if (iocb->ki_pos > i_size_read(file_inode(iocb->ki_filp))) {
ret = orangefs_revalidate_mapping(file_inode(iocb->ki_filp));
if (ret)
return ret;
}
inode_unlock(file->f_mapping->host);
return rc;
ret = generic_file_write_iter(iocb, iter);
return ret;
}
/*
......@@ -528,14 +420,13 @@ static vm_fault_t orangefs_fault(struct vm_fault *vmf)
{
struct file *file = vmf->vma->vm_file;
int ret;
ret = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
ret = orangefs_inode_getattr(file->f_mapping->host,
ORANGEFS_GETATTR_SIZE);
if (ret == -ESTALE)
ret = -EIO;
if (ret) {
gossip_err("%s: orangefs_inode_getattr failed, ret:%d:.\n",
__func__, ret);
gossip_err("%s: orangefs_inode_getattr failed, "
"ret:%d:.\n", __func__, ret);
return VM_FAULT_SIGBUS;
}
return filemap_fault(vmf);
......@@ -544,7 +435,7 @@ static vm_fault_t orangefs_fault(struct vm_fault *vmf)
static const struct vm_operations_struct orangefs_file_vm_ops = {
.fault = orangefs_fault,
.map_pages = filemap_map_pages,
.page_mkwrite = filemap_page_mkwrite,
.page_mkwrite = orangefs_page_mkwrite,
};
/*
......@@ -552,15 +443,18 @@ static const struct vm_operations_struct orangefs_file_vm_ops = {
*/
static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
int ret;
ret = orangefs_revalidate_mapping(file_inode(file));
if (ret)
return ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"orangefs_file_mmap: called on %s\n",
(file ?
(char *)file->f_path.dentry->d_name.name :
(char *)"Unknown"));
if ((vma->vm_flags & VM_SHARED) && (vma->vm_flags & VM_MAYWRITE))
return -EINVAL;
/* set the sequential readahead hint */
vma->vm_flags |= VM_SEQ_READ;
vma->vm_flags &= ~VM_RAND_READ;
......@@ -600,8 +494,7 @@ static int orangefs_file_release(struct inode *inode, struct file *file)
gossip_debug(GOSSIP_INODE_DEBUG,
"flush_racache finished\n");
}
truncate_inode_pages(file_inode(file)->i_mapping,
0);
}
return 0;
}
......@@ -619,6 +512,11 @@ static int orangefs_fsync(struct file *file,
ORANGEFS_I(file_inode(file));
struct orangefs_kernel_op_s *new_op = NULL;
ret = filemap_write_and_wait_range(file_inode(file)->i_mapping,
start, end);
if (ret < 0)
return ret;
new_op = op_alloc(ORANGEFS_VFS_OP_FSYNC);
if (!new_op)
return -ENOMEM;
......@@ -656,8 +554,8 @@ static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin)
* NOTE: We are only interested in file size here,
* so we set mask accordingly.
*/
ret = orangefs_inode_getattr(file->f_mapping->host, 0, 1,
STATX_SIZE);
ret = orangefs_inode_getattr(file->f_mapping->host,
ORANGEFS_GETATTR_SIZE);
if (ret == -ESTALE)
ret = -EIO;
if (ret) {
......@@ -700,6 +598,42 @@ static int orangefs_lock(struct file *filp, int cmd, struct file_lock *fl)
return rc;
}
static int orangefs_file_open(struct inode * inode, struct file *file)
{
file->private_data = NULL;
return generic_file_open(inode, file);
}
static int orangefs_flush(struct file *file, fl_owner_t id)
{
/*
* This is vfs_fsync_range(file, 0, LLONG_MAX, 0) without the
* service_operation in orangefs_fsync.
*
* Do not send fsync to OrangeFS server on a close. Do send fsync
* on an explicit fsync call. This duplicates historical OrangeFS
* behavior.
*/
struct inode *inode = file->f_mapping->host;
int r;
kfree(file->private_data);
file->private_data = NULL;
if (inode->i_state & I_DIRTY_TIME) {
spin_lock(&inode->i_lock);
inode->i_state &= ~I_DIRTY_TIME;
spin_unlock(&inode->i_lock);
mark_inode_dirty_sync(inode);
}
r = filemap_write_and_wait_range(file->f_mapping, 0, LLONG_MAX);
if (r > 0)
return 0;
else
return r;
}
/** ORANGEFS implementation of VFS file operations */
const struct file_operations orangefs_file_operations = {
.llseek = orangefs_file_llseek,
......@@ -708,7 +642,8 @@ const struct file_operations orangefs_file_operations = {
.lock = orangefs_lock,
.unlocked_ioctl = orangefs_ioctl,
.mmap = orangefs_file_mmap,
.open = generic_file_open,
.open = orangefs_file_open,
.flush = orangefs_flush,
.release = orangefs_file_release,
.fsync = orangefs_fsync,
};
fs/orangefs/inode.c
View file @ 88238805
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
......@@ -14,40 +15,312 @@
#include "orangefs-kernel.h"
#include "orangefs-bufmap.h"
static int read_one_page(struct page *page)
static int orangefs_writepage_locked(struct page *page,
struct writeback_control *wbc)
{
int ret;
int max_block;
ssize_t bytes_read = 0;
struct inode *inode = page->mapping->host;
const __u32 blocksize = PAGE_SIZE;
const __u32 blockbits = PAGE_SHIFT;
struct iov_iter to;
struct bio_vec bv = {.bv_page = page, .bv_len = PAGE_SIZE};
struct orangefs_write_range *wr = NULL;
struct iov_iter iter;
struct bio_vec bv;
size_t len, wlen;
ssize_t ret;
loff_t off;
set_page_writeback(page);
len = i_size_read(inode);
if (PagePrivate(page)) {
wr = (struct orangefs_write_range *)page_private(page);
WARN_ON(wr->pos >= len);
off = wr->pos;
if (off + wr->len > len)
wlen = len - off;
else
wlen = wr->len;
} else {
WARN_ON(1);
off = page_offset(page);
if (off + PAGE_SIZE > len)
wlen = len - off;
else
wlen = PAGE_SIZE;
}
/* Should've been handled in orangefs_invalidatepage. */
WARN_ON(off == len || off + wlen > len);
bv.bv_page = page;
bv.bv_len = wlen;
bv.bv_offset = off % PAGE_SIZE;
WARN_ON(wlen == 0);
iov_iter_bvec(&iter, WRITE, &bv, 1, wlen);
ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, wlen,
len, wr, NULL);
if (ret < 0) {
SetPageError(page);
mapping_set_error(page->mapping, ret);
} else {
ret = 0;
}
if (wr) {
kfree(wr);
set_page_private(page, 0);
ClearPagePrivate(page);
put_page(page);
}
return ret;
}
iov_iter_bvec(&to, READ, &bv, 1, PAGE_SIZE);
static int orangefs_writepage(struct page *page, struct writeback_control *wbc)
{
int ret;
ret = orangefs_writepage_locked(page, wbc);
unlock_page(page);
end_page_writeback(page);
return ret;
}
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_readpage called with page %p\n",
page);
struct orangefs_writepages {
loff_t off;
size_t len;
kuid_t uid;
kgid_t gid;
int maxpages;
int npages;
struct page **pages;
struct bio_vec *bv;
};
static int orangefs_writepages_work(struct orangefs_writepages *ow,
struct writeback_control *wbc)
{
struct inode *inode = ow->pages[0]->mapping->host;
struct orangefs_write_range *wrp, wr;
struct iov_iter iter;
ssize_t ret;
size_t len;
loff_t off;
int i;
len = i_size_read(inode);
for (i = 0; i < ow->npages; i++) {
set_page_writeback(ow->pages[i]);
ow->bv[i].bv_page = ow->pages[i];
ow->bv[i].bv_len = min(page_offset(ow->pages[i]) + PAGE_SIZE,
ow->off + ow->len) -
max(ow->off, page_offset(ow->pages[i]));
if (i == 0)
ow->bv[i].bv_offset = ow->off -
page_offset(ow->pages[i]);
else
ow->bv[i].bv_offset = 0;
}
iov_iter_bvec(&iter, WRITE, ow->bv, ow->npages, ow->len);
WARN_ON(ow->off >= len);
if (ow->off + ow->len > len)
ow->len = len - ow->off;
off = ow->off;
wr.uid = ow->uid;
wr.gid = ow->gid;
ret = wait_for_direct_io(ORANGEFS_IO_WRITE, inode, &off, &iter, ow->len,
0, &wr, NULL);
if (ret < 0) {
for (i = 0; i < ow->npages; i++) {
SetPageError(ow->pages[i]);
mapping_set_error(ow->pages[i]->mapping, ret);
if (PagePrivate(ow->pages[i])) {
wrp = (struct orangefs_write_range *)
page_private(ow->pages[i]);
ClearPagePrivate(ow->pages[i]);
put_page(ow->pages[i]);
kfree(wrp);
}
end_page_writeback(ow->pages[i]);
unlock_page(ow->pages[i]);
}
} else {
ret = 0;
for (i = 0; i < ow->npages; i++) {
if (PagePrivate(ow->pages[i])) {
wrp = (struct orangefs_write_range *)
page_private(ow->pages[i]);
ClearPagePrivate(ow->pages[i]);
put_page(ow->pages[i]);
kfree(wrp);
}
end_page_writeback(ow->pages[i]);
unlock_page(ow->pages[i]);
}
}
return ret;
}
static int orangefs_writepages_callback(struct page *page,
struct writeback_control *wbc, void *data)
{
struct orangefs_writepages *ow = data;
struct orangefs_write_range *wr;
int ret;
max_block = ((inode->i_size / blocksize) + 1);
if (!PagePrivate(page)) {
unlock_page(page);
/* It's not private so there's nothing to write, right? */
printk("writepages_callback not private!\n");
BUG();
return 0;
}
wr = (struct orangefs_write_range *)page_private(page);
ret = -1;
if (ow->npages == 0) {
ow->off = wr->pos;
ow->len = wr->len;
ow->uid = wr->uid;
ow->gid = wr->gid;
ow->pages[ow->npages++] = page;
ret = 0;
goto done;
}
if (!uid_eq(ow->uid, wr->uid) || !gid_eq(ow->gid, wr->gid)) {
orangefs_writepages_work(ow, wbc);
ow->npages = 0;
ret = -1;
goto done;
}
if (ow->off + ow->len == wr->pos) {
ow->len += wr->len;
ow->pages[ow->npages++] = page;
ret = 0;
goto done;
}
done:
if (ret == -1) {
if (ow->npages) {
orangefs_writepages_work(ow, wbc);
ow->npages = 0;
}
ret = orangefs_writepage_locked(page, wbc);
mapping_set_error(page->mapping, ret);
unlock_page(page);
end_page_writeback(page);
} else {
if (ow->npages == ow->maxpages) {
orangefs_writepages_work(ow, wbc);
ow->npages = 0;
}
}
return ret;
}
if (page->index < max_block) {
loff_t blockptr_offset = (((loff_t) page->index) << blockbits);
static int orangefs_writepages(struct address_space *mapping,
struct writeback_control *wbc)
{
struct orangefs_writepages *ow;
struct blk_plug plug;
int ret;
ow = kzalloc(sizeof(struct orangefs_writepages), GFP_KERNEL);
if (!ow)
return -ENOMEM;
ow->maxpages = orangefs_bufmap_size_query()/PAGE_SIZE;
ow->pages = kcalloc(ow->maxpages, sizeof(struct page *), GFP_KERNEL);
if (!ow->pages) {
kfree(ow);
return -ENOMEM;
}
ow->bv = kcalloc(ow->maxpages, sizeof(struct bio_vec), GFP_KERNEL);
if (!ow->bv) {
kfree(ow->pages);
kfree(ow);
return -ENOMEM;
}
blk_start_plug(&plug);
ret = write_cache_pages(mapping, wbc, orangefs_writepages_callback, ow);
if (ow->npages)
ret = orangefs_writepages_work(ow, wbc);
blk_finish_plug(&plug);
kfree(ow->pages);
kfree(ow->bv);
kfree(ow);
return ret;
}
static int orangefs_launder_page(struct page *);
static int orangefs_readpage(struct file *file, struct page *page)
{
struct inode *inode = page->mapping->host;
struct iov_iter iter;
struct bio_vec bv;
ssize_t ret;
loff_t off; /* offset into this page */
pgoff_t index; /* which page */
struct page *next_page;
char *kaddr;
struct orangefs_read_options *ro = file->private_data;
loff_t read_size;
loff_t roundedup;
int buffer_index = -1; /* orangefs shared memory slot */
int slot_index; /* index into slot */
int remaining;
/*
* If they set some miniscule size for "count" in read(2)
* (for example) then let's try to read a page, or the whole file
* if it is smaller than a page. Once "count" goes over a page
* then lets round up to the highest page size multiple that is
* less than or equal to "count" and do that much orangefs IO and
* try to fill as many pages as we can from it.
*
* "count" should be represented in ro->blksiz.
*
* inode->i_size = file size.
*/
if (ro) {
if (ro->blksiz < PAGE_SIZE) {
if (inode->i_size < PAGE_SIZE)
read_size = inode->i_size;
else
read_size = PAGE_SIZE;
} else {
roundedup = ((PAGE_SIZE - 1) & ro->blksiz) ?
((ro->blksiz + PAGE_SIZE) & ~(PAGE_SIZE -1)) :
ro->blksiz;
if (roundedup > inode->i_size)
read_size = inode->i_size;
else
read_size = roundedup;
bytes_read = orangefs_inode_read(inode,
&to,
&blockptr_offset,
inode->i_size);
}
} else {
read_size = PAGE_SIZE;
}
if (!read_size)
read_size = PAGE_SIZE;
if (PageDirty(page))
orangefs_launder_page(page);
off = page_offset(page);
index = off >> PAGE_SHIFT;
bv.bv_page = page;
bv.bv_len = PAGE_SIZE;
bv.bv_offset = 0;
iov_iter_bvec(&iter, READ, &bv, 1, PAGE_SIZE);
ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, &off, &iter,
read_size, inode->i_size, NULL, &buffer_index);
remaining = ret;
/* this will only zero remaining unread portions of the page data */
iov_iter_zero(~0U, &to);
iov_iter_zero(~0U, &iter);
/* takes care of potential aliasing */
flush_dcache_page(page);
if (bytes_read < 0) {
ret = bytes_read;
if (ret < 0) {
SetPageError(page);
unlock_page(page);
goto out;
} else {
SetPageUptodate(page);
if (PageError(page))
......@@ -56,96 +329,469 @@ static int read_one_page(struct page *page)
}
/* unlock the page after the ->readpage() routine completes */
unlock_page(page);
return ret;
}
static int orangefs_readpage(struct file *file, struct page *page)
{
return read_one_page(page);
if (remaining > PAGE_SIZE) {
slot_index = 0;
while ((remaining - PAGE_SIZE) >= PAGE_SIZE) {
remaining -= PAGE_SIZE;
/*
* It is an optimization to try and fill more than one
* page... by now we've already gotten the single
* page we were after, if stuff doesn't seem to
* be going our way at this point just return
* and hope for the best.
*
* If we look for pages and they're already there is
* one reason to give up, and if they're not there
* and we can't create them is another reason.
*/
index++;
slot_index++;
next_page = find_get_page(inode->i_mapping, index);
if (next_page) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s: found next page, quitting\n",
__func__);
put_page(next_page);
goto out;
}
next_page = find_or_create_page(inode->i_mapping,
index,
GFP_KERNEL);
/*
* I've never hit this, leave it as a printk for
* now so it will be obvious.
*/
if (!next_page) {
printk("%s: can't create next page, quitting\n",
__func__);
goto out;
}
kaddr = kmap_atomic(next_page);
orangefs_bufmap_page_fill(kaddr,
buffer_index,
slot_index);
kunmap_atomic(kaddr);
SetPageUptodate(next_page);
unlock_page(next_page);
put_page(next_page);
}
}
out:
if (buffer_index != -1)
orangefs_bufmap_put(buffer_index);
return ret;
}
static int orangefs_readpages(struct file *file,
static int orangefs_write_begin(struct file *file,
struct address_space *mapping,
struct list_head *pages,
unsigned nr_pages)
loff_t pos, unsigned len, unsigned flags, struct page **pagep,
void **fsdata)
{
int page_idx;
struct orangefs_write_range *wr;
struct page *page;
pgoff_t index;
int ret;
gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_readpages called\n");
index = pos >> PAGE_SHIFT;
for (page_idx = 0; page_idx < nr_pages; page_idx++) {
struct page *page;
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page)
return -ENOMEM;
page = lru_to_page(pages);
list_del(&page->lru);
if (!add_to_page_cache(page,
mapping,
page->index,
readahead_gfp_mask(mapping))) {
ret = read_one_page(page);
gossip_debug(GOSSIP_INODE_DEBUG,
"failure adding page to cache, read_one_page returned: %d\n",
ret);
*pagep = page;
if (PageDirty(page) && !PagePrivate(page)) {
/*
* Should be impossible. If it happens, launder the page
* since we don't know what's dirty. This will WARN in
* orangefs_writepage_locked.
*/
ret = orangefs_launder_page(page);
if (ret)
return ret;
}
if (PagePrivate(page)) {
struct orangefs_write_range *wr;
wr = (struct orangefs_write_range *)page_private(page);
if (wr->pos + wr->len == pos &&
uid_eq(wr->uid, current_fsuid()) &&
gid_eq(wr->gid, current_fsgid())) {
wr->len += len;
goto okay;
} else {
put_page(page);
ret = orangefs_launder_page(page);
if (ret)
return ret;
}
}
BUG_ON(!list_empty(pages));
wr = kmalloc(sizeof *wr, GFP_KERNEL);
if (!wr)
return -ENOMEM;
wr->pos = pos;
wr->len = len;
wr->uid = current_fsuid();
wr->gid = current_fsgid();
SetPagePrivate(page);
set_page_private(page, (unsigned long)wr);
get_page(page);
okay:
return 0;
}
static int orangefs_write_end(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned copied, struct page *page, void *fsdata)
{
struct inode *inode = page->mapping->host;
loff_t last_pos = pos + copied;
/*
* No need to use i_size_read() here, the i_size
* cannot change under us because we hold the i_mutex.
*/
if (last_pos > inode->i_size)
i_size_write(inode, last_pos);
/* zero the stale part of the page if we did a short copy */
if (!PageUptodate(page)) {
unsigned from = pos & (PAGE_SIZE - 1);
if (copied < len) {
zero_user(page, from + copied, len - copied);
}
/* Set fully written pages uptodate. */
if (pos == page_offset(page) &&
(len == PAGE_SIZE || pos + len == inode->i_size)) {
zero_user_segment(page, from + copied, PAGE_SIZE);
SetPageUptodate(page);
}
}
set_page_dirty(page);
unlock_page(page);
put_page(page);
mark_inode_dirty_sync(file_inode(file));
return copied;
}
static void orangefs_invalidatepage(struct page *page,
unsigned int offset,
unsigned int length)
{
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_invalidatepage called on page %p "
"(offset is %u)\n",
page,
offset);
struct orangefs_write_range *wr;
wr = (struct orangefs_write_range *)page_private(page);
ClearPageUptodate(page);
ClearPageMappedToDisk(page);
if (offset == 0 && length == PAGE_SIZE) {
kfree((struct orangefs_write_range *)page_private(page));
set_page_private(page, 0);
ClearPagePrivate(page);
put_page(page);
return;
/* write range entirely within invalidate range (or equal) */
} else if (page_offset(page) + offset <= wr->pos &&
wr->pos + wr->len <= page_offset(page) + offset + length) {
kfree((struct orangefs_write_range *)page_private(page));
set_page_private(page, 0);
ClearPagePrivate(page);
put_page(page);
/* XXX is this right? only caller in fs */
cancel_dirty_page(page);
return;
/* invalidate range chops off end of write range */
} else if (wr->pos < page_offset(page) + offset &&
wr->pos + wr->len <= page_offset(page) + offset + length &&
page_offset(page) + offset < wr->pos + wr->len) {
size_t x;
x = wr->pos + wr->len - (page_offset(page) + offset);
WARN_ON(x > wr->len);
wr->len -= x;
wr->uid = current_fsuid();
wr->gid = current_fsgid();
/* invalidate range chops off beginning of write range */
} else if (page_offset(page) + offset <= wr->pos &&
page_offset(page) + offset + length < wr->pos + wr->len &&
wr->pos < page_offset(page) + offset + length) {
size_t x;
x = page_offset(page) + offset + length - wr->pos;
WARN_ON(x > wr->len);
wr->pos += x;
wr->len -= x;
wr->uid = current_fsuid();
wr->gid = current_fsgid();
/* invalidate range entirely within write range (punch hole) */
} else if (wr->pos < page_offset(page) + offset &&
page_offset(page) + offset + length < wr->pos + wr->len) {
/* XXX what do we do here... should not WARN_ON */
WARN_ON(1);
/* punch hole */
/*
* should we just ignore this and write it out anyway?
* it hardly makes sense
*/
return;
/* non-overlapping ranges */
} else {
/* WARN if they do overlap */
if (!((page_offset(page) + offset + length <= wr->pos) ^
(wr->pos + wr->len <= page_offset(page) + offset))) {
WARN_ON(1);
printk("invalidate range offset %llu length %u\n",
page_offset(page) + offset, length);
printk("write range offset %llu length %zu\n",
wr->pos, wr->len);
}
return;
}
/*
* Above there are returns where wr is freed or where we WARN.
* Thus the following runs if wr was modified above.
*/
orangefs_launder_page(page);
}
static int orangefs_releasepage(struct page *page, gfp_t foo)
{
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_releasepage called on page %p\n",
page);
return 0;
return !PagePrivate(page);
}
/*
* Having a direct_IO entry point in the address_space_operations
* struct causes the kernel to allows us to use O_DIRECT on
* open. Nothing will ever call this thing, but in the future we
* will need to be able to use O_DIRECT on open in order to support
* AIO. Modeled after NFS, they do this too.
*/
static void orangefs_freepage(struct page *page)
{
if (PagePrivate(page)) {
kfree((struct orangefs_write_range *)page_private(page));
set_page_private(page, 0);
ClearPagePrivate(page);
put_page(page);
}
}
static int orangefs_launder_page(struct page *page)
{
int r = 0;
struct writeback_control wbc = {
.sync_mode = WB_SYNC_ALL,
.nr_to_write = 0,
};
wait_on_page_writeback(page);
if (clear_page_dirty_for_io(page)) {
r = orangefs_writepage_locked(page, &wbc);
end_page_writeback(page);
}
return r;
}
static ssize_t orangefs_direct_IO(struct kiocb *iocb,
struct iov_iter *iter)
{
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_direct_IO: %pD\n",
iocb->ki_filp);
/*
* Comment from original do_readv_writev:
* Common entry point for read/write/readv/writev
* This function will dispatch it to either the direct I/O
* or buffered I/O path depending on the mount options and/or
* augmented/extended metadata attached to the file.
* Note: File extended attributes override any mount options.
*/
struct file *file = iocb->ki_filp;
loff_t pos = iocb->ki_pos;
enum ORANGEFS_io_type type = iov_iter_rw(iter) == WRITE ?
ORANGEFS_IO_WRITE : ORANGEFS_IO_READ;
loff_t *offset = &pos;
struct inode *inode = file->f_mapping->host;
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_khandle *handle = &orangefs_inode->refn.khandle;
size_t count = iov_iter_count(iter);
ssize_t total_count = 0;
ssize_t ret = -EINVAL;
int i = 0;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n",
__func__,
handle,
(int)count);
return -EINVAL;
if (type == ORANGEFS_IO_WRITE) {
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): proceeding with offset : %llu, "
"size %d\n",
__func__,
handle,
llu(*offset),
(int)count);
}
if (count == 0) {
ret = 0;
goto out;
}
while (iov_iter_count(iter)) {
size_t each_count = iov_iter_count(iter);
size_t amt_complete;
i++;
/* how much to transfer in this loop iteration */
if (each_count > orangefs_bufmap_size_query())
each_count = orangefs_bufmap_size_query();
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): size of each_count(%d)\n",
__func__,
handle,
(int)each_count);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): BEFORE wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
ret = wait_for_direct_io(type, inode, offset, iter,
each_count, 0, NULL, NULL);
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): return from wait_for_io:%d\n",
__func__,
handle,
(int)ret);
if (ret < 0)
goto out;
*offset += ret;
total_count += ret;
amt_complete = ret;
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): AFTER wait_for_io: offset is %d\n",
__func__,
handle,
(int)*offset);
/*
* if we got a short I/O operations,
* fall out and return what we got so far
*/
if (amt_complete < each_count)
break;
} /*end while */
out:
if (total_count > 0)
ret = total_count;
if (ret > 0) {
if (type == ORANGEFS_IO_READ) {
file_accessed(file);
} else {
file_update_time(file);
if (*offset > i_size_read(inode))
i_size_write(inode, *offset);
}
}
gossip_debug(GOSSIP_FILE_DEBUG,
"%s(%pU): Value(%d) returned.\n",
__func__,
handle,
(int)ret);
return ret;
}
/** ORANGEFS2 implementation of address space operations */
static const struct address_space_operations orangefs_address_operations = {
.writepage = orangefs_writepage,
.readpage = orangefs_readpage,
.readpages = orangefs_readpages,
.writepages = orangefs_writepages,
.set_page_dirty = __set_page_dirty_nobuffers,
.write_begin = orangefs_write_begin,
.write_end = orangefs_write_end,
.invalidatepage = orangefs_invalidatepage,
.releasepage = orangefs_releasepage,
.freepage = orangefs_freepage,
.launder_page = orangefs_launder_page,
.direct_IO = orangefs_direct_IO,
};
vm_fault_t orangefs_page_mkwrite(struct vm_fault *vmf)
{
struct page *page = vmf->page;
struct inode *inode = file_inode(vmf->vma->vm_file);
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
unsigned long *bitlock = &orangefs_inode->bitlock;
vm_fault_t ret;
struct orangefs_write_range *wr;
sb_start_pagefault(inode->i_sb);
if (wait_on_bit(bitlock, 1, TASK_KILLABLE)) {
ret = VM_FAULT_RETRY;
goto out;
}
lock_page(page);
if (PageDirty(page) && !PagePrivate(page)) {
/*
* Should be impossible. If it happens, launder the page
* since we don't know what's dirty. This will WARN in
* orangefs_writepage_locked.
*/
if (orangefs_launder_page(page)) {
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
goto out;
}
}
if (PagePrivate(page)) {
wr = (struct orangefs_write_range *)page_private(page);
if (uid_eq(wr->uid, current_fsuid()) &&
gid_eq(wr->gid, current_fsgid())) {
wr->pos = page_offset(page);
wr->len = PAGE_SIZE;
goto okay;
} else {
if (orangefs_launder_page(page)) {
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
goto out;
}
}
}
wr = kmalloc(sizeof *wr, GFP_KERNEL);
if (!wr) {
ret = VM_FAULT_LOCKED|VM_FAULT_RETRY;
goto out;
}
wr->pos = page_offset(page);
wr->len = PAGE_SIZE;
wr->uid = current_fsuid();
wr->gid = current_fsgid();
SetPagePrivate(page);
set_page_private(page, (unsigned long)wr);
get_page(page);
okay:
file_update_time(vmf->vma->vm_file);
if (page->mapping != inode->i_mapping) {
unlock_page(page);
ret = VM_FAULT_LOCKED|VM_FAULT_NOPAGE;
goto out;
}
/*
* We mark the page dirty already here so that when freeze is in
* progress, we are guaranteed that writeback during freezing will
* see the dirty page and writeprotect it again.
*/
set_page_dirty(page);
wait_for_stable_page(page);
ret = VM_FAULT_LOCKED;
out:
sb_end_pagefault(inode->i_sb);
return ret;
}
static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
......@@ -162,7 +808,7 @@ static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
iattr->ia_size);
/* Ensure that we have a up to date size, so we know if it changed. */
ret = orangefs_inode_getattr(inode, 0, 1, STATX_SIZE);
ret = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_SIZE);
if (ret == -ESTALE)
ret = -EIO;
if (ret) {
......@@ -172,7 +818,11 @@ static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
}
orig_size = i_size_read(inode);
truncate_setsize(inode, iattr->ia_size);
/* This is truncate_setsize in a different order. */
truncate_pagecache(inode, iattr->ia_size);
i_size_write(inode, iattr->ia_size);
if (iattr->ia_size > orig_size)
pagecache_isize_extended(inode, orig_size, iattr->ia_size);
new_op = op_alloc(ORANGEFS_VFS_OP_TRUNCATE);
if (!new_op)
......@@ -202,22 +852,33 @@ static int orangefs_setattr_size(struct inode *inode, struct iattr *iattr)
return ret;
}
/*
* Change attributes of an object referenced by dentry.
*/
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
int __orangefs_setattr(struct inode *inode, struct iattr *iattr)
{
int ret = -EINVAL;
struct inode *inode = dentry->d_inode;
gossip_debug(GOSSIP_INODE_DEBUG,
"%s: called on %pd\n",
__func__,
dentry);
int ret;
ret = setattr_prepare(dentry, iattr);
if (ret)
if (iattr->ia_valid & ATTR_MODE) {
if (iattr->ia_mode & (S_ISVTX)) {
if (is_root_handle(inode)) {
/*
* allow sticky bit to be set on root (since
* it shows up that way by default anyhow),
* but don't show it to the server
*/
iattr->ia_mode -= S_ISVTX;
} else {
gossip_debug(GOSSIP_UTILS_DEBUG,
"User attempted to set sticky bit on non-root directory; returning EINVAL.\n");
ret = -EINVAL;
goto out;
}
}
if (iattr->ia_mode & (S_ISUID)) {
gossip_debug(GOSSIP_UTILS_DEBUG,
"Attempting to set setuid bit (not supported); returning EINVAL.\n");
ret = -EINVAL;
goto out;
}
}
if (iattr->ia_valid & ATTR_SIZE) {
ret = orangefs_setattr_size(inode, iattr);
......@@ -225,21 +886,51 @@ int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
goto out;
}
again:
spin_lock(&inode->i_lock);
if (ORANGEFS_I(inode)->attr_valid) {
if (uid_eq(ORANGEFS_I(inode)->attr_uid, current_fsuid()) &&
gid_eq(ORANGEFS_I(inode)->attr_gid, current_fsgid())) {
ORANGEFS_I(inode)->attr_valid = iattr->ia_valid;
} else {
spin_unlock(&inode->i_lock);
write_inode_now(inode, 1);
goto again;
}
} else {
ORANGEFS_I(inode)->attr_valid = iattr->ia_valid;
ORANGEFS_I(inode)->attr_uid = current_fsuid();
ORANGEFS_I(inode)->attr_gid = current_fsgid();
}
setattr_copy(inode, iattr);
spin_unlock(&inode->i_lock);
mark_inode_dirty(inode);
ret = orangefs_inode_setattr(inode, iattr);
gossip_debug(GOSSIP_INODE_DEBUG,
"%s: orangefs_inode_setattr returned %d\n",
__func__,
ret);
if (!ret && (iattr->ia_valid & ATTR_MODE))
if (iattr->ia_valid & ATTR_MODE)
/* change mod on a file that has ACLs */
ret = posix_acl_chmod(inode, inode->i_mode);
ret = 0;
out:
gossip_debug(GOSSIP_INODE_DEBUG, "%s: ret:%d:\n", __func__, ret);
return ret;
}
/*
* Change attributes of an object referenced by dentry.
*/
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr)
{
int ret;
gossip_debug(GOSSIP_INODE_DEBUG, "__orangefs_setattr: called on %pd\n",
dentry);
ret = setattr_prepare(dentry, iattr);
if (ret)
goto out;
ret = __orangefs_setattr(d_inode(dentry), iattr);
sync_inode_metadata(d_inode(dentry), 1);
out:
gossip_debug(GOSSIP_INODE_DEBUG, "orangefs_setattr: returning %d\n",
ret);
return ret;
}
......@@ -253,10 +944,11 @@ int orangefs_getattr(const struct path *path, struct kstat *stat,
struct inode *inode = path->dentry->d_inode;
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_getattr: called on %pd\n",
path->dentry);
"orangefs_getattr: called on %pd mask %u\n",
path->dentry, request_mask);
ret = orangefs_inode_getattr(inode, 0, 0, request_mask);
ret = orangefs_inode_getattr(inode,
request_mask & STATX_SIZE ? ORANGEFS_GETATTR_SIZE : 0);
if (ret == 0) {
generic_fillattr(inode, stat);
......@@ -284,7 +976,7 @@ int orangefs_permission(struct inode *inode, int mask)
gossip_debug(GOSSIP_INODE_DEBUG, "%s: refreshing\n", __func__);
/* Make sure the permission (and other common attrs) are up to date. */
ret = orangefs_inode_getattr(inode, 0, 0, STATX_MODE);
ret = orangefs_inode_getattr(inode, 0);
if (ret < 0)
return ret;
......@@ -304,7 +996,7 @@ int orangefs_update_time(struct inode *inode, struct timespec64 *time, int flags
iattr.ia_valid |= ATTR_CTIME;
if (flags & S_MTIME)
iattr.ia_valid |= ATTR_MTIME;
return orangefs_inode_setattr(inode, &iattr);
return __orangefs_setattr(inode, &iattr);
}
/* ORANGEFS2 implementation of VFS inode operations for files */
......@@ -364,6 +1056,10 @@ static int orangefs_set_inode(struct inode *inode, void *data)
struct orangefs_object_kref *ref = (struct orangefs_object_kref *) data;
ORANGEFS_I(inode)->refn.fs_id = ref->fs_id;
ORANGEFS_I(inode)->refn.khandle = ref->khandle;
ORANGEFS_I(inode)->attr_valid = 0;
hash_init(ORANGEFS_I(inode)->xattr_cache);
ORANGEFS_I(inode)->mapping_time = jiffies - 1;
ORANGEFS_I(inode)->bitlock = 0;
return 0;
}
......@@ -409,7 +1105,7 @@ struct inode *orangefs_iget(struct super_block *sb,
if (!(inode->i_state & I_NEW))
return inode;
error = orangefs_inode_getattr(inode, 1, 1, STATX_ALL);
error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW);
if (error) {
iget_failed(inode);
return ERR_PTR(error);
......@@ -454,17 +1150,11 @@ struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir,
orangefs_set_inode(inode, ref);
inode->i_ino = hash; /* needed for stat etc */
error = orangefs_inode_getattr(inode, 1, 1, STATX_ALL);
error = orangefs_inode_getattr(inode, ORANGEFS_GETATTR_NEW);
if (error)
goto out_iput;
orangefs_init_iops(inode);
inode->i_mode = mode;
inode->i_uid = current_fsuid();
inode->i_gid = current_fsgid();
inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode);
inode->i_size = PAGE_SIZE;
inode->i_rdev = dev;
error = insert_inode_locked4(inode, hash, orangefs_test_inode, ref);
......
fs/orangefs/namei.c
View file @ 88238805
......@@ -76,19 +76,16 @@ static int orangefs_create(struct inode *dir,
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: dentry instantiated for %pd\n",
__func__,
dentry);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
ret = 0;
out:
op_release(new_op);
......@@ -210,11 +207,10 @@ static int orangefs_unlink(struct inode *dir, struct dentry *dentry)
if (!ret) {
drop_nlink(inode);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
}
return ret;
}
......@@ -291,19 +287,16 @@ static int orangefs_symlink(struct inode *dir,
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Symlink) %pU -> %pd\n",
get_khandle_from_ino(inode),
dentry);
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
ret = 0;
out:
op_release(new_op);
......@@ -360,8 +353,6 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
d_instantiate_new(dentry, inode);
orangefs_set_timeout(dentry);
ORANGEFS_I(inode)->getattr_time = jiffies - 1;
ORANGEFS_I(inode)->getattr_mask = STATX_BASIC_STATS;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Directory) %pU -> %pd\n",
......@@ -372,11 +363,10 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
* NOTE: we have no good way to keep nlink consistent for directories
* across clients; keep constant at 1.
*/
dir->i_mtime = dir->i_ctime = current_time(dir);
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME;
orangefs_inode_setattr(dir, &iattr);
mark_inode_dirty_sync(dir);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(dir);
__orangefs_setattr(dir, &iattr);
out:
op_release(new_op);
return ret;
......@@ -389,6 +379,7 @@ static int orangefs_rename(struct inode *old_dir,
unsigned int flags)
{
struct orangefs_kernel_op_s *new_op;
struct iattr iattr;
int ret;
if (flags)
......@@ -398,7 +389,10 @@ static int orangefs_rename(struct inode *old_dir,
"orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
old_dentry, new_dentry, d_count(new_dentry));
ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = jiffies - 1;
memset(&iattr, 0, sizeof iattr);
iattr.ia_valid |= ATTR_MTIME | ATTR_CTIME;
iattr.ia_mtime = iattr.ia_ctime = current_time(new_dir);
__orangefs_setattr(new_dir, &iattr);
new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
if (!new_op)
......
fs/orangefs/orangefs-bufmap.c
View file @ 88238805
......@@ -538,3 +538,16 @@ int orangefs_bufmap_copy_to_iovec(struct iov_iter *iter,
}
return 0;
}
void orangefs_bufmap_page_fill(void *page_to,
int buffer_index,
int slot_index)
{
struct orangefs_bufmap_desc *from;
void *page_from;
from = &__orangefs_bufmap->desc_array[buffer_index];
page_from = kmap_atomic(from->page_array[slot_index]);
memcpy(page_to, page_from, PAGE_SIZE);
kunmap_atomic(page_from);
}
fs/orangefs/orangefs-bufmap.h
View file @ 88238805
......@@ -34,4 +34,6 @@ int orangefs_bufmap_copy_to_iovec(struct iov_iter *iter,
int buffer_index,
size_t size);
void orangefs_bufmap_page_fill(void *kaddr, int buffer_index, int slot_index);
#endif /* __ORANGEFS_BUFMAP_H */
fs/orangefs/orangefs-kernel.h
View file @ 88238805
......@@ -51,6 +51,7 @@
#include <linux/rwsem.h>
#include <linux/xattr.h>
#include <linux/exportfs.h>
#include <linux/hashtable.h>
#include <asm/unaligned.h>
......@@ -192,7 +193,13 @@ struct orangefs_inode_s {
sector_t last_failed_block_index_read;
unsigned long getattr_time;
u32 getattr_mask;
unsigned long mapping_time;
int attr_valid;
kuid_t attr_uid;
kgid_t attr_gid;
unsigned long bitlock;
DECLARE_HASHTABLE(xattr_cache, 4);
};
/* per superblock private orangefs info */
......@@ -217,6 +224,25 @@ struct orangefs_stats {
unsigned long writes;
};
struct orangefs_cached_xattr {
struct hlist_node node;
char key[ORANGEFS_MAX_XATTR_NAMELEN];
char val[ORANGEFS_MAX_XATTR_VALUELEN];
ssize_t length;
unsigned long timeout;
};
struct orangefs_write_range {
loff_t pos;
size_t len;
kuid_t uid;
kgid_t gid;
};
struct orangefs_read_options {
ssize_t blksiz;
};
extern struct orangefs_stats orangefs_stats;
/*
......@@ -329,13 +355,15 @@ void fsid_key_table_finalize(void);
/*
* defined in inode.c
*/
vm_fault_t orangefs_page_mkwrite(struct vm_fault *);
struct inode *orangefs_new_inode(struct super_block *sb,
struct inode *dir,
int mode,
dev_t dev,
struct orangefs_object_kref *ref);
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr);
int __orangefs_setattr(struct inode *, struct iattr *);
int orangefs_setattr(struct dentry *, struct iattr *);
int orangefs_getattr(const struct path *path, struct kstat *stat,
u32 request_mask, unsigned int flags);
......@@ -355,11 +383,6 @@ ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size);
struct inode *orangefs_iget(struct super_block *sb,
struct orangefs_object_kref *ref);
ssize_t orangefs_inode_read(struct inode *inode,
struct iov_iter *iter,
loff_t *offset,
loff_t readahead_size);
/*
* defined in devorangefs-req.c
*/
......@@ -370,6 +393,15 @@ void orangefs_dev_cleanup(void);
int is_daemon_in_service(void);
bool __is_daemon_in_service(void);
/*
* defined in file.c
*/
int orangefs_revalidate_mapping(struct inode *);
ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *,
struct iov_iter *, size_t, loff_t, struct orangefs_write_range *, int *);
ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *,
struct iov_iter *);
/*
* defined in orangefs-utils.c
*/
......@@ -386,12 +418,14 @@ int orangefs_inode_setxattr(struct inode *inode,
size_t size,
int flags);
int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
u32 request_mask);
#define ORANGEFS_GETATTR_NEW 1
#define ORANGEFS_GETATTR_SIZE 2
int orangefs_inode_getattr(struct inode *, int);
int orangefs_inode_check_changed(struct inode *inode);
int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr);
int orangefs_inode_setattr(struct inode *inode);
bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op);
......@@ -400,6 +434,7 @@ int orangefs_normalize_to_errno(__s32 error_code);
extern struct mutex orangefs_request_mutex;
extern int op_timeout_secs;
extern int slot_timeout_secs;
extern int orangefs_cache_timeout_msecs;
extern int orangefs_dcache_timeout_msecs;
extern int orangefs_getattr_timeout_msecs;
extern struct list_head orangefs_superblocks;
......@@ -426,6 +461,7 @@ extern const struct dentry_operations orangefs_dentry_operations;
#define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */
#define ORANGEFS_OP_NO_MUTEX 8 /* don't acquire request_mutex */
#define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */
#define ORANGEFS_OP_WRITEBACK 32
int service_operation(struct orangefs_kernel_op_s *op,
const char *op_name,
......
fs/orangefs/orangefs-mod.c
View file @ 88238805
......@@ -30,6 +30,7 @@ static ulong module_parm_debug_mask;
__u64 orangefs_gossip_debug_mask;
int op_timeout_secs = ORANGEFS_DEFAULT_OP_TIMEOUT_SECS;
int slot_timeout_secs = ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS;
int orangefs_cache_timeout_msecs = 50;
int orangefs_dcache_timeout_msecs = 50;
int orangefs_getattr_timeout_msecs = 50;
......
fs/orangefs/orangefs-sysfs.c
View file @ 88238805
......@@ -62,6 +62,14 @@
* Slots are requested and waited for,
* the wait times out after slot_timeout_secs.
*
* What: /sys/fs/orangefs/cache_timeout_msecs
* Date: Mar 2018
* Contact: Martin Brandenburg <martin@omnibond.com>
* Description:
* Time in milliseconds between which
* orangefs_revalidate_mapping will invalidate the page
* cache.
*
* What: /sys/fs/orangefs/dcache_timeout_msecs
* Date: Jul 2016
* Contact: Martin Brandenburg <martin@omnibond.com>
......@@ -221,6 +229,13 @@ static ssize_t sysfs_int_show(struct kobject *kobj,
"%d\n",
slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name,
"cache_timeout_msecs")) {
rc = scnprintf(buf,
PAGE_SIZE,
"%d\n",
orangefs_cache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name,
"dcache_timeout_msecs")) {
rc = scnprintf(buf,
......@@ -277,6 +292,9 @@ static ssize_t sysfs_int_store(struct kobject *kobj,
} else if (!strcmp(attr->attr.name, "slot_timeout_secs")) {
rc = kstrtoint(buf, 0, &slot_timeout_secs);
goto out;
} else if (!strcmp(attr->attr.name, "cache_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_cache_timeout_msecs);
goto out;
} else if (!strcmp(attr->attr.name, "dcache_timeout_msecs")) {
rc = kstrtoint(buf, 0, &orangefs_dcache_timeout_msecs);
goto out;
......@@ -818,6 +836,9 @@ static struct orangefs_attribute op_timeout_secs_attribute =
static struct orangefs_attribute slot_timeout_secs_attribute =
__ATTR(slot_timeout_secs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute cache_timeout_msecs_attribute =
__ATTR(cache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
static struct orangefs_attribute dcache_timeout_msecs_attribute =
__ATTR(dcache_timeout_msecs, 0664, sysfs_int_show, sysfs_int_store);
......@@ -861,6 +882,7 @@ static struct orangefs_attribute perf_time_interval_secs_attribute =
static struct attribute *orangefs_default_attrs[] = {
&op_timeout_secs_attribute.attr,
&slot_timeout_secs_attribute.attr,
&cache_timeout_msecs_attribute.attr,
&dcache_timeout_msecs_attribute.attr,
&getattr_timeout_msecs_attribute.attr,
&readahead_count_attribute.attr,
......
fs/orangefs/orangefs-utils.c
View file @ 88238805
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
......@@ -135,51 +136,37 @@ static int orangefs_inode_perms(struct ORANGEFS_sys_attr_s *attrs)
* NOTE: in kernel land, we never use the sys_attr->link_target for
* anything, so don't bother copying it into the sys_attr object here.
*/
static inline int copy_attributes_from_inode(struct inode *inode,
struct ORANGEFS_sys_attr_s *attrs,
struct iattr *iattr)
static inline void copy_attributes_from_inode(struct inode *inode,
struct ORANGEFS_sys_attr_s *attrs)
{
umode_t tmp_mode;
if (!iattr || !inode || !attrs) {
gossip_err("NULL iattr (%p), inode (%p), attrs (%p) "
"in copy_attributes_from_inode!\n",
iattr,
inode,
attrs);
return -EINVAL;
}
/*
* We need to be careful to only copy the attributes out of the
* iattr object that we know are valid.
*/
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
attrs->mask = 0;
if (iattr->ia_valid & ATTR_UID) {
attrs->owner = from_kuid(&init_user_ns, iattr->ia_uid);
if (orangefs_inode->attr_valid & ATTR_UID) {
attrs->owner = from_kuid(&init_user_ns, inode->i_uid);
attrs->mask |= ORANGEFS_ATTR_SYS_UID;
gossip_debug(GOSSIP_UTILS_DEBUG, "(UID) %d\n", attrs->owner);
}
if (iattr->ia_valid & ATTR_GID) {
attrs->group = from_kgid(&init_user_ns, iattr->ia_gid);
if (orangefs_inode->attr_valid & ATTR_GID) {
attrs->group = from_kgid(&init_user_ns, inode->i_gid);
attrs->mask |= ORANGEFS_ATTR_SYS_GID;
gossip_debug(GOSSIP_UTILS_DEBUG, "(GID) %d\n", attrs->group);
}
if (iattr->ia_valid & ATTR_ATIME) {
if (orangefs_inode->attr_valid & ATTR_ATIME) {
attrs->mask |= ORANGEFS_ATTR_SYS_ATIME;
if (iattr->ia_valid & ATTR_ATIME_SET) {
attrs->atime = (time64_t)iattr->ia_atime.tv_sec;
if (orangefs_inode->attr_valid & ATTR_ATIME_SET) {
attrs->atime = (time64_t)inode->i_atime.tv_sec;
attrs->mask |= ORANGEFS_ATTR_SYS_ATIME_SET;
}
}
if (iattr->ia_valid & ATTR_MTIME) {
if (orangefs_inode->attr_valid & ATTR_MTIME) {
attrs->mask |= ORANGEFS_ATTR_SYS_MTIME;
if (iattr->ia_valid & ATTR_MTIME_SET) {
attrs->mtime = (time64_t)iattr->ia_mtime.tv_sec;
if (orangefs_inode->attr_valid & ATTR_MTIME_SET) {
attrs->mtime = (time64_t)inode->i_mtime.tv_sec;
attrs->mask |= ORANGEFS_ATTR_SYS_MTIME_SET;
}
}
if (iattr->ia_valid & ATTR_CTIME)
if (orangefs_inode->attr_valid & ATTR_CTIME)
attrs->mask |= ORANGEFS_ATTR_SYS_CTIME;
/*
......@@ -188,36 +175,10 @@ static inline int copy_attributes_from_inode(struct inode *inode,
* worry about ATTR_SIZE
*/
if (iattr->ia_valid & ATTR_MODE) {
tmp_mode = iattr->ia_mode;
if (tmp_mode & (S_ISVTX)) {
if (is_root_handle(inode)) {
/*
* allow sticky bit to be set on root (since
* it shows up that way by default anyhow),
* but don't show it to the server
*/
tmp_mode -= S_ISVTX;
} else {
gossip_debug(GOSSIP_UTILS_DEBUG,
"%s: setting sticky bit not supported.\n",
__func__);
return -EINVAL;
}
}
if (tmp_mode & (S_ISUID)) {
gossip_debug(GOSSIP_UTILS_DEBUG,
"%s: setting setuid bit not supported.\n",
__func__);
return -EINVAL;
}
attrs->perms = ORANGEFS_util_translate_mode(tmp_mode);
if (orangefs_inode->attr_valid & ATTR_MODE) {
attrs->perms = ORANGEFS_util_translate_mode(inode->i_mode);
attrs->mask |= ORANGEFS_ATTR_SYS_PERM;
}
return 0;
}
static int orangefs_inode_type(enum orangefs_ds_type objtype)
......@@ -272,27 +233,30 @@ static int orangefs_inode_is_stale(struct inode *inode,
return 0;
}
int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
u32 request_mask)
int orangefs_inode_getattr(struct inode *inode, int flags)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
loff_t inode_size;
int ret, type;
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: called on inode %pU\n", __func__,
get_khandle_from_ino(inode));
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: called on inode %pU flags %d\n",
__func__, get_khandle_from_ino(inode), flags);
if (!new && !bypass) {
/*
* Must have all the attributes in the mask and be within cache
* time.
*/
if ((request_mask & orangefs_inode->getattr_mask) ==
request_mask &&
time_before(jiffies, orangefs_inode->getattr_time))
again:
spin_lock(&inode->i_lock);
/* Must have all the attributes in the mask and be within cache time. */
if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) ||
orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) {
if (orangefs_inode->attr_valid) {
spin_unlock(&inode->i_lock);
write_inode_now(inode, 1);
goto again;
}
spin_unlock(&inode->i_lock);
return 0;
}
spin_unlock(&inode->i_lock);
new_op = op_alloc(ORANGEFS_VFS_OP_GETATTR);
if (!new_op)
......@@ -302,7 +266,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
* Size is the hardest attribute to get. The incremental cost of any
* other attribute is essentially zero.
*/
if (request_mask & STATX_SIZE || new)
if (flags)
new_op->upcall.req.getattr.mask = ORANGEFS_ATTR_SYS_ALL_NOHINT;
else
new_op->upcall.req.getattr.mask =
......@@ -313,13 +277,33 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
if (ret != 0)
goto out;
if (!new) {
again2:
spin_lock(&inode->i_lock);
/* Must have all the attributes in the mask and be within cache time. */
if ((!flags && time_before(jiffies, orangefs_inode->getattr_time)) ||
orangefs_inode->attr_valid || inode->i_state & I_DIRTY_PAGES) {
if (orangefs_inode->attr_valid) {
spin_unlock(&inode->i_lock);
write_inode_now(inode, 1);
goto again2;
}
if (inode->i_state & I_DIRTY_PAGES) {
ret = 0;
goto out_unlock;
}
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: in cache or dirty\n",
__func__);
ret = 0;
goto out_unlock;
}
if (!(flags & ORANGEFS_GETATTR_NEW)) {
ret = orangefs_inode_is_stale(inode,
&new_op->downcall.resp.getattr.attributes,
new_op->downcall.resp.getattr.link_target);
if (ret) {
ret = -ESTALE;
goto out;
goto out_unlock;
}
}
......@@ -329,30 +313,26 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
case S_IFREG:
inode->i_flags = orangefs_inode_flags(&new_op->
downcall.resp.getattr.attributes);
if (request_mask & STATX_SIZE || new) {
if (flags) {
inode_size = (loff_t)new_op->
downcall.resp.getattr.attributes.size;
inode->i_size = inode_size;
inode->i_blkbits = ffs(new_op->downcall.resp.getattr.
attributes.blksize);
spin_lock(&inode->i_lock);
inode->i_bytes = inode_size;
inode->i_blocks =
(inode_size + 512 - inode_size % 512)/512;
spin_unlock(&inode->i_lock);
}
break;
case S_IFDIR:
if (request_mask & STATX_SIZE || new) {
if (flags) {
inode->i_size = PAGE_SIZE;
spin_lock(&inode->i_lock);
inode_set_bytes(inode, inode->i_size);
spin_unlock(&inode->i_lock);
}
set_nlink(inode, 1);
break;
case S_IFLNK:
if (new) {
if (flags & ORANGEFS_GETATTR_NEW) {
inode->i_size = (loff_t)strlen(new_op->
downcall.resp.getattr.link_target);
ret = strscpy(orangefs_inode->link_target,
......@@ -360,7 +340,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
ORANGEFS_NAME_MAX);
if (ret == -E2BIG) {
ret = -EIO;
goto out;
goto out_unlock;
}
inode->i_link = orangefs_inode->link_target;
}
......@@ -370,7 +350,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
/* XXX: ESTALE? This is what is done if it is not new. */
orangefs_make_bad_inode(inode);
ret = -ESTALE;
goto out;
goto out_unlock;
}
inode->i_uid = make_kuid(&init_user_ns, new_op->
......@@ -393,11 +373,9 @@ int orangefs_inode_getattr(struct inode *inode, int new, int bypass,
orangefs_inode->getattr_time = jiffies +
orangefs_getattr_timeout_msecs*HZ/1000;
if (request_mask & STATX_SIZE || new)
orangefs_inode->getattr_mask = STATX_BASIC_STATS;
else
orangefs_inode->getattr_mask = STATX_BASIC_STATS & ~STATX_SIZE;
ret = 0;
out_unlock:
spin_unlock(&inode->i_lock);
out:
op_release(new_op);
return ret;
......@@ -436,7 +414,7 @@ int orangefs_inode_check_changed(struct inode *inode)
* issues a orangefs setattr request to make sure the new attribute values
* take effect if successful. returns 0 on success; -errno otherwise
*/
int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
int orangefs_inode_setattr(struct inode *inode)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
......@@ -446,24 +424,31 @@ int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
if (!new_op)
return -ENOMEM;
spin_lock(&inode->i_lock);
new_op->upcall.uid = from_kuid(&init_user_ns, orangefs_inode->attr_uid);
new_op->upcall.gid = from_kgid(&init_user_ns, orangefs_inode->attr_gid);
new_op->upcall.req.setattr.refn = orangefs_inode->refn;
ret = copy_attributes_from_inode(inode,
&new_op->upcall.req.setattr.attributes,
iattr);
if (ret >= 0) {
ret = service_operation(new_op, __func__,
get_interruptible_flag(inode));
copy_attributes_from_inode(inode,
&new_op->upcall.req.setattr.attributes);
orangefs_inode->attr_valid = 0;
if (!new_op->upcall.req.setattr.attributes.mask) {
spin_unlock(&inode->i_lock);
op_release(new_op);
return 0;
}
spin_unlock(&inode->i_lock);
ret = service_operation(new_op, __func__,
get_interruptible_flag(inode) | ORANGEFS_OP_WRITEBACK);
gossip_debug(GOSSIP_UTILS_DEBUG,
"orangefs_inode_setattr: returning %d\n",
ret);
}
"orangefs_inode_setattr: returning %d\n", ret);
if (ret)
orangefs_make_bad_inode(inode);
op_release(new_op);
if (ret == 0)
orangefs_inode->getattr_time = jiffies - 1;
return ret;
}
......
fs/orangefs/super.c
View file @ 88238805
......@@ -10,6 +10,7 @@
#include "orangefs-bufmap.h"
#include <linux/parser.h>
#include <linux/hashtable.h>
/* a cache for orangefs-inode objects (i.e. orangefs inode private data) */
static struct kmem_cache *orangefs_inode_cache;
......@@ -126,7 +127,17 @@ static struct inode *orangefs_alloc_inode(struct super_block *sb)
static void orangefs_free_inode(struct inode *inode)
{
kmem_cache_free(orangefs_inode_cache, ORANGEFS_I(inode));
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_cached_xattr *cx;
struct hlist_node *tmp;
int i;
hash_for_each_safe(orangefs_inode->xattr_cache, i, tmp, cx, node) {
hlist_del(&cx->node);
kfree(cx);
}
kmem_cache_free(orangefs_inode_cache, orangefs_inode);
}
static void orangefs_destroy_inode(struct inode *inode)
......@@ -138,6 +149,13 @@ static void orangefs_destroy_inode(struct inode *inode)
__func__, orangefs_inode, get_khandle_from_ino(inode));
}
static int orangefs_write_inode(struct inode *inode,
struct writeback_control *wbc)
{
gossip_debug(GOSSIP_SUPER_DEBUG, "orangefs_write_inode\n");
return orangefs_inode_setattr(inode);
}
/*
* NOTE: information filled in here is typically reflected in the
* output of the system command 'df'
......@@ -297,6 +315,7 @@ static const struct super_operations orangefs_s_ops = {
.alloc_inode = orangefs_alloc_inode,
.free_inode = orangefs_free_inode,
.destroy_inode = orangefs_destroy_inode,
.write_inode = orangefs_write_inode,
.drop_inode = generic_delete_inode,
.statfs = orangefs_statfs,
.remount_fs = orangefs_remount_fs,
......@@ -394,15 +413,11 @@ static int orangefs_fill_sb(struct super_block *sb,
struct orangefs_fs_mount_response *fs_mount,
void *data, int silent)
{
int ret = -EINVAL;
struct inode *root = NULL;
struct dentry *root_dentry = NULL;
int ret;
struct inode *root;
struct dentry *root_dentry;
struct orangefs_object_kref root_object;
/* alloc and init our private orangefs sb info */
sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
if (!ORANGEFS_SB(sb))
return -ENOMEM;
ORANGEFS_SB(sb)->sb = sb;
ORANGEFS_SB(sb)->root_khandle = fs_mount->root_khandle;
......@@ -425,6 +440,10 @@ static int orangefs_fill_sb(struct super_block *sb,
sb->s_blocksize_bits = PAGE_SHIFT;
sb->s_maxbytes = MAX_LFS_FILESIZE;
ret = super_setup_bdi(sb);
if (ret)
return ret;
root_object.khandle = ORANGEFS_SB(sb)->root_khandle;
root_object.fs_id = ORANGEFS_SB(sb)->fs_id;
gossip_debug(GOSSIP_SUPER_DEBUG,
......@@ -503,6 +522,13 @@ struct dentry *orangefs_mount(struct file_system_type *fst,
goto free_op;
}
/* alloc and init our private orangefs sb info */
sb->s_fs_info = kzalloc(sizeof(struct orangefs_sb_info_s), GFP_KERNEL);
if (!ORANGEFS_SB(sb)) {
d = ERR_PTR(-ENOMEM);
goto free_op;
}
ret = orangefs_fill_sb(sb,
&new_op->downcall.resp.fs_mount, data,
flags & SB_SILENT ? 1 : 0);
......
fs/orangefs/waitqueue.c
View file @ 88238805
......@@ -19,7 +19,7 @@
static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
long timeout,
bool interruptible)
int flags)
__acquires(op->lock);
static void orangefs_clean_up_interrupted_operation(struct orangefs_kernel_op_s *op)
__releases(op->lock);
......@@ -143,9 +143,7 @@ int service_operation(struct orangefs_kernel_op_s *op,
if (!(flags & ORANGEFS_OP_NO_MUTEX))
mutex_unlock(&orangefs_request_mutex);
ret = wait_for_matching_downcall(op, timeout,
flags & ORANGEFS_OP_INTERRUPTIBLE);
ret = wait_for_matching_downcall(op, timeout, flags);
gossip_debug(GOSSIP_WAIT_DEBUG,
"%s: wait_for_matching_downcall returned %d for %p\n",
__func__,
......@@ -319,10 +317,12 @@ static void
*/
static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
long timeout,
bool interruptible)
int flags)
__acquires(op->lock)
{
long n;
int writeback = flags & ORANGEFS_OP_WRITEBACK,
interruptible = flags & ORANGEFS_OP_INTERRUPTIBLE;
/*
* There's a "schedule_timeout" inside of these wait
......@@ -330,10 +330,12 @@ static int wait_for_matching_downcall(struct orangefs_kernel_op_s *op,
* user process that needs something done and is being
* manipulated by the client-core process.
*/
if (interruptible)
if (writeback)
n = wait_for_completion_io_timeout(&op->waitq, timeout);
else if (!writeback && interruptible)
n = wait_for_completion_interruptible_timeout(&op->waitq,
timeout);
else
else /* !writeback && !interruptible but compiler complains */
n = wait_for_completion_killable_timeout(&op->waitq, timeout);
spin_lock(&op->lock);
......
fs/orangefs/xattr.c
View file @ 88238805
// SPDX-License-Identifier: GPL-2.0
/*
* (C) 2001 Clemson University and The University of Chicago
* Copyright 2018 Omnibond Systems, L.L.C.
*
* See COPYING in top-level directory.
*/
......@@ -14,7 +15,7 @@
#include "orangefs-bufmap.h"
#include <linux/posix_acl_xattr.h>
#include <linux/xattr.h>
#include <linux/hashtable.h>
#define SYSTEM_ORANGEFS_KEY "system.pvfs2."
#define SYSTEM_ORANGEFS_KEY_LEN 13
......@@ -50,6 +51,35 @@ static inline int convert_to_internal_xattr_flags(int setxattr_flags)
return internal_flag;
}
static unsigned int xattr_key(const char *key)
{
unsigned int i = 0;
while (key)
i += *key++;
return i % 16;
}
static struct orangefs_cached_xattr *find_cached_xattr(struct inode *inode,
const char *key)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
h = &orangefs_inode->xattr_cache[xattr_key(key)];
if (hlist_empty(h))
return NULL;
hlist_for_each_entry_safe(cx, tmp, h, node) {
/* if (!time_before(jiffies, cx->timeout)) {
hlist_del(&cx->node);
kfree(cx);
continue;
}*/
if (!strcmp(cx->key, key))
return cx;
}
return NULL;
}
/*
* Tries to get a specified key's attributes of a given
......@@ -65,6 +95,7 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op = NULL;
struct orangefs_cached_xattr *cx;
ssize_t ret = -ENOMEM;
ssize_t length = 0;
int fsuid;
......@@ -93,6 +124,27 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
down_read(&orangefs_inode->xattr_sem);
cx = find_cached_xattr(inode, name);
if (cx && time_before(jiffies, cx->timeout)) {
if (cx->length == -1) {
ret = -ENODATA;
goto out_unlock;
} else {
if (size == 0) {
ret = cx->length;
goto out_unlock;
}
if (cx->length > size) {
ret = -ERANGE;
goto out_unlock;
}
memcpy(buffer, cx->val, cx->length);
memset(buffer + cx->length, 0, size - cx->length);
ret = cx->length;
goto out_unlock;
}
}
new_op = op_alloc(ORANGEFS_VFS_OP_GETXATTR);
if (!new_op)
goto out_unlock;
......@@ -117,6 +169,15 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
" does not exist!\n",
get_khandle_from_ino(inode),
(char *)new_op->upcall.req.getxattr.key);
cx = kmalloc(sizeof *cx, GFP_KERNEL);
if (cx) {
strcpy(cx->key, name);
cx->length = -1;
cx->timeout = jiffies +
orangefs_getattr_timeout_msecs*HZ/1000;
hash_add(orangefs_inode->xattr_cache, &cx->node,
xattr_key(cx->key));
}
}
goto out_release_op;
}
......@@ -156,6 +217,23 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
ret = length;
if (cx) {
strcpy(cx->key, name);
memcpy(cx->val, buffer, length);
cx->length = length;
cx->timeout = jiffies + HZ;
} else {
cx = kmalloc(sizeof *cx, GFP_KERNEL);
if (cx) {
strcpy(cx->key, name);
memcpy(cx->val, buffer, length);
cx->length = length;
cx->timeout = jiffies + HZ;
hash_add(orangefs_inode->xattr_cache, &cx->node,
xattr_key(cx->key));
}
}
out_release_op:
op_release(new_op);
out_unlock:
......@@ -168,6 +246,9 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op = NULL;
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
int ret = -ENOMEM;
if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN)
......@@ -209,6 +290,16 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
"orangefs_inode_removexattr: returning %d\n", ret);
op_release(new_op);
h = &orangefs_inode->xattr_cache[xattr_key(name)];
hlist_for_each_entry_safe(cx, tmp, h, node) {
if (!strcmp(cx->key, name)) {
hlist_del(&cx->node);
kfree(cx);
break;
}
}
out_unlock:
up_write(&orangefs_inode->xattr_sem);
return ret;
......@@ -226,6 +317,9 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
int internal_flag = 0;
struct orangefs_cached_xattr *cx;
struct hlist_head *h;
struct hlist_node *tmp;
int ret = -ENOMEM;
gossip_debug(GOSSIP_XATTR_DEBUG,
......@@ -287,6 +381,16 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
/* when request is serviced properly, free req op struct */
op_release(new_op);
h = &orangefs_inode->xattr_cache[xattr_key(name)];
hlist_for_each_entry_safe(cx, tmp, h, node) {
if (!strcmp(cx->key, name)) {
hlist_del(&cx->node);
kfree(cx);
break;
}
}
out_unlock:
up_write(&orangefs_inode->xattr_sem);
return ret;
......
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