Commit dfee9c25 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'fuse-update-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

Pull fuse updates from Miklos Szeredi:
 "Scalability and performance improvements, as well as minor bug fixes
  and cleanups"

* tag 'fuse-update-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (25 commits)
  fuse: cache readdir calls if filesystem opts out of opendir
  fuse: support clients that don't implement 'opendir'
  fuse: lift bad inode checks into callers
  fuse: multiplex cached/direct_io file operations
  fuse add copy_file_range to direct io fops
  fuse: use iov_iter based generic splice helpers
  fuse: Switch to using async direct IO for FOPEN_DIRECT_IO
  fuse: use atomic64_t for khctr
  fuse: clean up aborted
  fuse: Protect ff->reserved_req via corresponding fi->lock
  fuse: Protect fi->nlookup with fi->lock
  fuse: Introduce fi->lock to protect write related fields
  fuse: Convert fc->attr_version into atomic64_t
  fuse: Add fuse_inode argument to fuse_prepare_release()
  fuse: Verify userspace asks to requeue interrupt that we really sent
  fuse: Do some refactoring in fuse_dev_do_write()
  fuse: Wake up req->waitq of only if not background
  fuse: Optimize request_end() by not taking fiq->waitq.lock
  fuse: Kill fasync only if interrupt is queued in queue_interrupt()
  fuse: Remove stale comment in end_requests()
  ...
parents 7b47a9e7 fabf7e02
......@@ -35,7 +35,9 @@ static ssize_t fuse_conn_abort_write(struct file *file, const char __user *buf,
{
struct fuse_conn *fc = fuse_ctl_file_conn_get(file);
if (fc) {
fuse_abort_conn(fc, true);
if (fc->abort_err)
fc->aborted = true;
fuse_abort_conn(fc);
fuse_conn_put(fc);
}
return count;
......
......@@ -141,10 +141,11 @@ static int cuse_open(struct inode *inode, struct file *file)
static int cuse_release(struct inode *inode, struct file *file)
{
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_file *ff = file->private_data;
struct fuse_conn *fc = ff->fc;
fuse_sync_release(ff, file->f_flags);
fuse_sync_release(fi, ff, file->f_flags);
fuse_conn_put(fc);
return 0;
......@@ -407,7 +408,7 @@ static void cuse_process_init_reply(struct fuse_conn *fc, struct fuse_req *req)
err_region:
unregister_chrdev_region(devt, 1);
err:
fuse_abort_conn(fc, false);
fuse_abort_conn(fc);
goto out;
}
......@@ -586,7 +587,7 @@ static ssize_t cuse_class_abort_store(struct device *dev,
{
struct cuse_conn *cc = dev_get_drvdata(dev);
fuse_abort_conn(&cc->fc, false);
fuse_abort_conn(&cc->fc);
return count;
}
static DEVICE_ATTR(abort, 0200, NULL, cuse_class_abort_store);
......
......@@ -251,17 +251,18 @@ static struct fuse_req *get_reserved_req(struct fuse_conn *fc,
struct file *file)
{
struct fuse_req *req = NULL;
struct fuse_inode *fi = get_fuse_inode(file_inode(file));
struct fuse_file *ff = file->private_data;
do {
wait_event(fc->reserved_req_waitq, ff->reserved_req);
spin_lock(&fc->lock);
spin_lock(&fi->lock);
if (ff->reserved_req) {
req = ff->reserved_req;
ff->reserved_req = NULL;
req->stolen_file = get_file(file);
}
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
} while (!req);
return req;
......@@ -273,16 +274,17 @@ static struct fuse_req *get_reserved_req(struct fuse_conn *fc,
static void put_reserved_req(struct fuse_conn *fc, struct fuse_req *req)
{
struct file *file = req->stolen_file;
struct fuse_inode *fi = get_fuse_inode(file_inode(file));
struct fuse_file *ff = file->private_data;
WARN_ON(req->max_pages);
spin_lock(&fc->lock);
spin_lock(&fi->lock);
memset(req, 0, sizeof(*req));
fuse_request_init(req, NULL, NULL, 0);
BUG_ON(ff->reserved_req);
ff->reserved_req = req;
wake_up_all(&fc->reserved_req_waitq);
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
fput(file);
}
......@@ -431,10 +433,16 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
if (test_and_set_bit(FR_FINISHED, &req->flags))
goto put_request;
spin_lock(&fiq->waitq.lock);
list_del_init(&req->intr_entry);
spin_unlock(&fiq->waitq.lock);
/*
* test_and_set_bit() implies smp_mb() between bit
* changing and below intr_entry check. Pairs with
* smp_mb() from queue_interrupt().
*/
if (!list_empty(&req->intr_entry)) {
spin_lock(&fiq->waitq.lock);
list_del_init(&req->intr_entry);
spin_unlock(&fiq->waitq.lock);
}
WARN_ON(test_bit(FR_PENDING, &req->flags));
WARN_ON(test_bit(FR_SENT, &req->flags));
if (test_bit(FR_BACKGROUND, &req->flags)) {
......@@ -462,27 +470,43 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
fc->active_background--;
flush_bg_queue(fc);
spin_unlock(&fc->bg_lock);
} else {
/* Wake up waiter sleeping in request_wait_answer() */
wake_up(&req->waitq);
}
wake_up(&req->waitq);
if (req->end)
req->end(fc, req);
put_request:
fuse_put_request(fc, req);
}
static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
static int queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
{
spin_lock(&fiq->waitq.lock);
if (test_bit(FR_FINISHED, &req->flags)) {
/* Check for we've sent request to interrupt this req */
if (unlikely(!test_bit(FR_INTERRUPTED, &req->flags))) {
spin_unlock(&fiq->waitq.lock);
return;
return -EINVAL;
}
if (list_empty(&req->intr_entry)) {
list_add_tail(&req->intr_entry, &fiq->interrupts);
/*
* Pairs with smp_mb() implied by test_and_set_bit()
* from request_end().
*/
smp_mb();
if (test_bit(FR_FINISHED, &req->flags)) {
list_del_init(&req->intr_entry);
spin_unlock(&fiq->waitq.lock);
return 0;
}
wake_up_locked(&fiq->waitq);
kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
}
spin_unlock(&fiq->waitq.lock);
kill_fasync(&fiq->fasync, SIGIO, POLL_IN);
return 0;
}
static void request_wait_answer(struct fuse_conn *fc, struct fuse_req *req)
......@@ -1306,7 +1330,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
goto err_unlock;
if (!fiq->connected) {
err = (fc->aborted && fc->abort_err) ? -ECONNABORTED : -ENODEV;
err = fc->aborted ? -ECONNABORTED : -ENODEV;
goto err_unlock;
}
......@@ -1353,7 +1377,7 @@ static ssize_t fuse_dev_do_read(struct fuse_dev *fud, struct file *file,
spin_lock(&fpq->lock);
clear_bit(FR_LOCKED, &req->flags);
if (!fpq->connected) {
err = (fc->aborted && fc->abort_err) ? -ECONNABORTED : -ENODEV;
err = fc->aborted ? -ECONNABORTED : -ENODEV;
goto out_end;
}
if (err) {
......@@ -1900,16 +1924,17 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
struct fuse_req *req;
struct fuse_out_header oh;
err = -EINVAL;
if (nbytes < sizeof(struct fuse_out_header))
return -EINVAL;
goto out;
err = fuse_copy_one(cs, &oh, sizeof(oh));
if (err)
goto err_finish;
goto copy_finish;
err = -EINVAL;
if (oh.len != nbytes)
goto err_finish;
goto copy_finish;
/*
* Zero oh.unique indicates unsolicited notification message
......@@ -1917,41 +1942,40 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
*/
if (!oh.unique) {
err = fuse_notify(fc, oh.error, nbytes - sizeof(oh), cs);
return err ? err : nbytes;
goto out;
}
err = -EINVAL;
if (oh.error <= -1000 || oh.error > 0)
goto err_finish;
goto copy_finish;
spin_lock(&fpq->lock);
err = -ENOENT;
if (!fpq->connected)
goto err_unlock_pq;
req = NULL;
if (fpq->connected)
req = request_find(fpq, oh.unique & ~FUSE_INT_REQ_BIT);
req = request_find(fpq, oh.unique & ~FUSE_INT_REQ_BIT);
if (!req)
goto err_unlock_pq;
err = -ENOENT;
if (!req) {
spin_unlock(&fpq->lock);
goto copy_finish;
}
/* Is it an interrupt reply ID? */
if (oh.unique & FUSE_INT_REQ_BIT) {
__fuse_get_request(req);
spin_unlock(&fpq->lock);
err = -EINVAL;
if (nbytes != sizeof(struct fuse_out_header)) {
fuse_put_request(fc, req);
goto err_finish;
}
if (oh.error == -ENOSYS)
err = 0;
if (nbytes != sizeof(struct fuse_out_header))
err = -EINVAL;
else if (oh.error == -ENOSYS)
fc->no_interrupt = 1;
else if (oh.error == -EAGAIN)
queue_interrupt(&fc->iq, req);
err = queue_interrupt(&fc->iq, req);
fuse_put_request(fc, req);
fuse_copy_finish(cs);
return nbytes;
goto copy_finish;
}
clear_bit(FR_SENT, &req->flags);
......@@ -1977,14 +2001,12 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud,
spin_unlock(&fpq->lock);
request_end(fc, req);
out:
return err ? err : nbytes;
err_unlock_pq:
spin_unlock(&fpq->lock);
err_finish:
copy_finish:
fuse_copy_finish(cs);
return err;
goto out;
}
static ssize_t fuse_dev_write(struct kiocb *iocb, struct iov_iter *from)
......@@ -2109,11 +2131,7 @@ static __poll_t fuse_dev_poll(struct file *file, poll_table *wait)
return mask;
}
/*
* Abort all requests on the given list (pending or processing)
*
* This function releases and reacquires fc->lock
*/
/* Abort all requests on the given list (pending or processing) */
static void end_requests(struct fuse_conn *fc, struct list_head *head)
{
while (!list_empty(head)) {
......@@ -2159,7 +2177,7 @@ static void end_polls(struct fuse_conn *fc)
* is OK, the request will in that case be removed from the list before we touch
* it.
*/
void fuse_abort_conn(struct fuse_conn *fc, bool is_abort)
void fuse_abort_conn(struct fuse_conn *fc)
{
struct fuse_iqueue *fiq = &fc->iq;
......@@ -2175,7 +2193,6 @@ void fuse_abort_conn(struct fuse_conn *fc, bool is_abort)
fc->connected = 0;
spin_unlock(&fc->bg_lock);
fc->aborted = is_abort;
fuse_set_initialized(fc);
list_for_each_entry(fud, &fc->devices, entry) {
struct fuse_pqueue *fpq = &fud->pq;
......@@ -2253,7 +2270,7 @@ int fuse_dev_release(struct inode *inode, struct file *file)
/* Are we the last open device? */
if (atomic_dec_and_test(&fc->dev_count)) {
WARN_ON(fc->iq.fasync != NULL);
fuse_abort_conn(fc, false);
fuse_abort_conn(fc);
}
fuse_dev_free(fud);
}
......
......@@ -149,21 +149,6 @@ static void fuse_lookup_init(struct fuse_conn *fc, struct fuse_args *args,
args->out.args[0].value = outarg;
}
u64 fuse_get_attr_version(struct fuse_conn *fc)
{
u64 curr_version;
/*
* The spin lock isn't actually needed on 64bit archs, but we
* don't yet care too much about such optimizations.
*/
spin_lock(&fc->lock);
curr_version = fc->attr_version;
spin_unlock(&fc->lock);
return curr_version;
}
/*
* Check whether the dentry is still valid
*
......@@ -222,9 +207,9 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
fuse_queue_forget(fc, forget, outarg.nodeid, 1);
goto invalid;
}
spin_lock(&fc->lock);
spin_lock(&fi->lock);
fi->nlookup++;
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
}
kfree(forget);
if (ret == -ENOMEM)
......@@ -400,6 +385,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
struct fuse_create_in inarg;
struct fuse_open_out outopen;
struct fuse_entry_out outentry;
struct fuse_inode *fi;
struct fuse_file *ff;
/* Userspace expects S_IFREG in create mode */
......@@ -451,7 +437,7 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
&outentry.attr, entry_attr_timeout(&outentry), 0);
if (!inode) {
flags &= ~(O_CREAT | O_EXCL | O_TRUNC);
fuse_sync_release(ff, flags);
fuse_sync_release(NULL, ff, flags);
fuse_queue_forget(fc, forget, outentry.nodeid, 1);
err = -ENOMEM;
goto out_err;
......@@ -462,7 +448,8 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry,
fuse_dir_changed(dir);
err = finish_open(file, entry, generic_file_open);
if (err) {
fuse_sync_release(ff, flags);
fi = get_fuse_inode(inode);
fuse_sync_release(fi, ff, flags);
} else {
file->private_data = ff;
fuse_finish_open(inode, file);
......@@ -671,8 +658,8 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
struct inode *inode = d_inode(entry);
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
spin_lock(&fi->lock);
fi->attr_version = atomic64_inc_return(&fc->attr_version);
/*
* If i_nlink == 0 then unlink doesn't make sense, yet this can
* happen if userspace filesystem is careless. It would be
......@@ -681,7 +668,7 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry)
*/
if (inode->i_nlink > 0)
drop_nlink(inode);
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
fuse_invalidate_attr(inode);
fuse_dir_changed(dir);
fuse_invalidate_entry_cache(entry);
......@@ -825,10 +812,10 @@ static int fuse_link(struct dentry *entry, struct inode *newdir,
if (!err) {
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
fi->attr_version = ++fc->attr_version;
spin_lock(&fi->lock);
fi->attr_version = atomic64_inc_return(&fc->attr_version);
inc_nlink(inode);
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
fuse_invalidate_attr(inode);
fuse_update_ctime(inode);
} else if (err == -EINTR) {
......@@ -1356,15 +1343,14 @@ static void iattr_to_fattr(struct fuse_conn *fc, struct iattr *iattr,
*/
void fuse_set_nowrite(struct inode *inode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
BUG_ON(!inode_is_locked(inode));
spin_lock(&fc->lock);
spin_lock(&fi->lock);
BUG_ON(fi->writectr < 0);
fi->writectr += FUSE_NOWRITE;
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
wait_event(fi->page_waitq, fi->writectr == FUSE_NOWRITE);
}
......@@ -1385,11 +1371,11 @@ static void __fuse_release_nowrite(struct inode *inode)
void fuse_release_nowrite(struct inode *inode)
{
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
spin_lock(&fi->lock);
__fuse_release_nowrite(inode);
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
}
static void fuse_setattr_fill(struct fuse_conn *fc, struct fuse_args *args,
......@@ -1524,7 +1510,7 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
goto error;
}
spin_lock(&fc->lock);
spin_lock(&fi->lock);
/* the kernel maintains i_mtime locally */
if (trust_local_cmtime) {
if (attr->ia_valid & ATTR_MTIME)
......@@ -1542,10 +1528,10 @@ int fuse_do_setattr(struct dentry *dentry, struct iattr *attr,
i_size_write(inode, outarg.attr.size);
if (is_truncate) {
/* NOTE: this may release/reacquire fc->lock */
/* NOTE: this may release/reacquire fi->lock */
__fuse_release_nowrite(inode);
}
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
/*
* Only call invalidate_inode_pages2() after removing
......
This diff is collapsed.
......@@ -96,7 +96,7 @@ struct fuse_inode {
union {
/* Write related fields (regular file only) */
struct {
/* Files usable in writepage. Protected by fc->lock */
/* Files usable in writepage. Protected by fi->lock */
struct list_head write_files;
/* Writepages pending on truncate or fsync */
......@@ -144,6 +144,9 @@ struct fuse_inode {
/** Lock for serializing lookup and readdir for back compatibility*/
struct mutex mutex;
/** Lock to protect write related fields */
spinlock_t lock;
};
/** FUSE inode state bits */
......@@ -163,7 +166,10 @@ struct fuse_file {
/** Fuse connection for this file */
struct fuse_conn *fc;
/** Request reserved for flush and release */
/*
* Request reserved for flush and release.
* Modified under relative fuse_inode::lock.
*/
struct fuse_req *reserved_req;
/** Kernel file handle guaranteed to be unique */
......@@ -538,7 +544,7 @@ struct fuse_conn {
struct fuse_iqueue iq;
/** The next unique kernel file handle */
u64 khctr;
atomic64_t khctr;
/** rbtree of fuse_files waiting for poll events indexed by ph */
struct rb_root polled_files;
......@@ -624,6 +630,9 @@ struct fuse_conn {
/** Is open/release not implemented by fs? */
unsigned no_open:1;
/** Is opendir/releasedir not implemented by fs? */
unsigned no_opendir:1;
/** Is fsync not implemented by fs? */
unsigned no_fsync:1;
......@@ -730,7 +739,7 @@ struct fuse_conn {
struct fuse_req *destroy_req;
/** Version counter for attribute changes */
u64 attr_version;
atomic64_t attr_version;
/** Called on final put */
void (*release)(struct fuse_conn *);
......@@ -770,6 +779,11 @@ static inline int invalid_nodeid(u64 nodeid)
return !nodeid || nodeid == FUSE_ROOT_ID;
}
static inline u64 fuse_get_attr_version(struct fuse_conn *fc)
{
return atomic64_read(&fc->attr_version);
}
/** Device operations */
extern const struct file_operations fuse_dev_operations;
......@@ -817,7 +831,7 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc);
void fuse_file_free(struct fuse_file *ff);
void fuse_finish_open(struct inode *inode, struct file *file);
void fuse_sync_release(struct fuse_file *ff, int flags);
void fuse_sync_release(struct fuse_inode *fi, struct fuse_file *ff, int flags);
/**
* Send RELEASE or RELEASEDIR request
......@@ -936,7 +950,7 @@ void fuse_request_send_background(struct fuse_conn *fc, struct fuse_req *req);
bool fuse_request_queue_background(struct fuse_conn *fc, struct fuse_req *req);
/* Abort all requests */
void fuse_abort_conn(struct fuse_conn *fc, bool is_abort);
void fuse_abort_conn(struct fuse_conn *fc);
void fuse_wait_aborted(struct fuse_conn *fc);
/**
......@@ -1000,8 +1014,6 @@ void fuse_flush_writepages(struct inode *inode);
void fuse_set_nowrite(struct inode *inode);
void fuse_release_nowrite(struct inode *inode);
u64 fuse_get_attr_version(struct fuse_conn *fc);
/**
* File-system tells the kernel to invalidate cache for the given node id.
*/
......
......@@ -97,6 +97,7 @@ static struct inode *fuse_alloc_inode(struct super_block *sb)
fi->orig_ino = 0;
fi->state = 0;
mutex_init(&fi->mutex);
spin_lock_init(&fi->lock);
fi->forget = fuse_alloc_forget();
if (!fi->forget) {
kmem_cache_free(fuse_inode_cachep, inode);
......@@ -163,7 +164,9 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
fi->attr_version = ++fc->attr_version;
lockdep_assert_held(&fi->lock);
fi->attr_version = atomic64_inc_return(&fc->attr_version);
fi->i_time = attr_valid;
WRITE_ONCE(fi->inval_mask, 0);
......@@ -209,10 +212,10 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr,
loff_t oldsize;
struct timespec64 old_mtime;
spin_lock(&fc->lock);
spin_lock(&fi->lock);
if ((attr_version != 0 && fi->attr_version > attr_version) ||
test_bit(FUSE_I_SIZE_UNSTABLE, &fi->state)) {
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
return;
}
......@@ -227,7 +230,7 @@ void fuse_change_attributes(struct inode *inode, struct fuse_attr *attr,
*/
if (!is_wb || !S_ISREG(inode->i_mode))
i_size_write(inode, attr->size);
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
if (!is_wb && S_ISREG(inode->i_mode)) {
bool inval = false;
......@@ -322,9 +325,9 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid,
}
fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
spin_lock(&fi->lock);
fi->nlookup++;
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
fuse_change_attributes(inode, attr, attr_valid, attr_version);
return inode;
......@@ -376,7 +379,7 @@ void fuse_unlock_inode(struct inode *inode, bool locked)
static void fuse_umount_begin(struct super_block *sb)
{
fuse_abort_conn(get_fuse_conn_super(sb), false);
fuse_abort_conn(get_fuse_conn_super(sb));
}
static void fuse_send_destroy(struct fuse_conn *fc)
......@@ -619,12 +622,12 @@ void fuse_conn_init(struct fuse_conn *fc, struct user_namespace *user_ns)
atomic_set(&fc->num_waiting, 0);
fc->max_background = FUSE_DEFAULT_MAX_BACKGROUND;
fc->congestion_threshold = FUSE_DEFAULT_CONGESTION_THRESHOLD;
fc->khctr = 0;
atomic64_set(&fc->khctr, 0);
fc->polled_files = RB_ROOT;
fc->blocked = 0;
fc->initialized = 0;
fc->connected = 1;
fc->attr_version = 1;
atomic64_set(&fc->attr_version, 1);
get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
fc->pid_ns = get_pid_ns(task_active_pid_ns(current));
fc->user_ns = get_user_ns(user_ns);
......@@ -969,7 +972,8 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
FUSE_DO_READDIRPLUS | FUSE_READDIRPLUS_AUTO | FUSE_ASYNC_DIO |
FUSE_WRITEBACK_CACHE | FUSE_NO_OPEN_SUPPORT |
FUSE_PARALLEL_DIROPS | FUSE_HANDLE_KILLPRIV | FUSE_POSIX_ACL |
FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS;
FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS |
FUSE_NO_OPENDIR_SUPPORT;
req->in.h.opcode = FUSE_INIT;
req->in.numargs = 1;
req->in.args[0].size = sizeof(*arg);
......@@ -1242,7 +1246,7 @@ static void fuse_sb_destroy(struct super_block *sb)
if (fc) {
fuse_send_destroy(fc);
fuse_abort_conn(fc, false);
fuse_abort_conn(fc);
fuse_wait_aborted(fc);
down_write(&fc->killsb);
......
......@@ -213,9 +213,9 @@ static int fuse_direntplus_link(struct file *file,
}
fi = get_fuse_inode(inode);
spin_lock(&fc->lock);
spin_lock(&fi->lock);
fi->nlookup++;
spin_unlock(&fc->lock);
spin_unlock(&fi->lock);
forget_all_cached_acls(inode);
fuse_change_attributes(inode, &o->attr,
......
......@@ -122,6 +122,9 @@
* - add FOPEN_CACHE_DIR
* - add FUSE_MAX_PAGES, add max_pages to init_out
* - add FUSE_CACHE_SYMLINKS
*
* 7.29
* - add FUSE_NO_OPENDIR_SUPPORT flag
*/
#ifndef _LINUX_FUSE_H
......@@ -157,7 +160,7 @@
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
#define FUSE_KERNEL_MINOR_VERSION 28
#define FUSE_KERNEL_MINOR_VERSION 29
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
......@@ -259,6 +262,7 @@ struct fuse_file_lock {
* FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED
* FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages
* FUSE_CACHE_SYMLINKS: cache READLINK responses
* FUSE_NO_OPENDIR_SUPPORT: kernel supports zero-message opendir
*/
#define FUSE_ASYNC_READ (1 << 0)
#define FUSE_POSIX_LOCKS (1 << 1)
......@@ -284,6 +288,7 @@ struct fuse_file_lock {
#define FUSE_ABORT_ERROR (1 << 21)
#define FUSE_MAX_PAGES (1 << 22)
#define FUSE_CACHE_SYMLINKS (1 << 23)
#define FUSE_NO_OPENDIR_SUPPORT (1 << 24)
/**
* CUSE INIT request/reply flags
......
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