Merge tag 'gfs2-for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

 - Properly fix the glock shrinker this time: it broke in commit "gfs2:
   Make glock lru list scanning safer" and commit "gfs2: fix glock
   shrinker ref issues" wasn't actually enough to fix it

 - On unmount, keep glocks around long enough that no more dlm callbacks
   can occur on them

 - Some more folio conversion patches from Matthew Wilcox

 - Lots of other smaller fixes and cleanups

* tag 'gfs2-for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (27 commits)
  gfs2: make timeout values more explicit
  gfs2: Convert gfs2_aspace_writepage() to use a folio
  gfs2: Add a migrate_folio operation for journalled files
  gfs2: Simplify gfs2_read_super
  gfs2: Convert gfs2_page_mkwrite() to use a folio
  gfs2: gfs2_freeze_unlock cleanup
  gfs2: Remove and replace gfs2_glock_queue_work
  gfs2: do_xmote fixes
  gfs2: finish_xmote cleanup
  gfs2: Unlock fewer glocks on unmount
  gfs2: Fix potential glock use-after-free on unmount
  gfs2: Remove ill-placed consistency check
  gfs2: Fix lru_count accounting
  gfs2: Fix "Make glock lru list scanning safer"
  Revert "gfs2: fix glock shrinker ref issues"
  gfs2: Fix "ignore unlock failures after withdraw"
  gfs2: Get rid of unnecessary test_and_set_bit
  gfs2: Don't set GLF_LOCK in gfs2_dispose_glock_lru
  gfs2: Replace gfs2_glock_queue_put with gfs2_glock_put_async
  gfs2: Get rid of gfs2_glock_queue_put in signal_our_withdraw
  ...

fs/gfs2/aops.c

@@ -116,8 +116,7 @@ static int gfs2_write_jdata_folio(struct folio *folio,
  * @folio: The folio to write
  * @wbc: The writeback control
  *
- * This is shared between writepage and writepages and implements the
- * core of the writepage operation. If a transaction is required then
+ * Implements the core of write back. If a transaction is required then
  * the checked flag will have been set and the transaction will have
  * already been started before this is called.
  */
@@ -755,6 +754,7 @@ static const struct address_space_operations gfs2_jdata_aops = {
 	.readahead = gfs2_readahead,
 	.dirty_folio = jdata_dirty_folio,
 	.bmap = gfs2_bmap,
+	.migrate_folio = buffer_migrate_folio,
 	.invalidate_folio = gfs2_invalidate_folio,
 	.release_folio = gfs2_release_folio,
 	.is_partially_uptodate = block_is_partially_uptodate,

fs/gfs2/bmap.c

@@ -1827,7 +1827,7 @@ static int punch_hole(struct gfs2_inode *ip, u64 offset, u64 length)
 			gfs2_assert_withdraw(sdp, bh);
 			if (gfs2_assert_withdraw(sdp,
 						 prev_bnr != bh->b_blocknr)) {
-				fs_emerg(sdp, "inode %llu, block:%llu, i_h:%u,"
+				fs_emerg(sdp, "inode %llu, block:%llu, i_h:%u, "
 					 "s_h:%u, mp_h:%u\n",
 				       (unsigned long long)ip->i_no_addr,
 				       prev_bnr, ip->i_height, strip_h, mp_h);

fs/gfs2/dir.c

@@ -562,15 +562,18 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
 	int ret = 0;
 
 	ret = gfs2_dirent_offset(GFS2_SB(inode), buf);
-	if (ret < 0)
-		goto consist_inode;
-
+	if (ret < 0) {
+		gfs2_consist_inode(GFS2_I(inode));
+		return ERR_PTR(-EIO);
+	}
 	offset = ret;
 	prev = NULL;
 	dent = buf + offset;
 	size = be16_to_cpu(dent->de_rec_len);
-	if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size, len, 1))
-		goto consist_inode;
+	if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size, len, 1)) {
+		gfs2_consist_inode(GFS2_I(inode));
+		return ERR_PTR(-EIO);
+	}
 	do {
 		ret = scan(dent, name, opaque);
 		if (ret)
@@ -582,8 +585,10 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
 		dent = buf + offset;
 		size = be16_to_cpu(dent->de_rec_len);
 		if (gfs2_check_dirent(GFS2_SB(inode), dent, offset, size,
-				      len, 0))
-			goto consist_inode;
+				      len, 0)) {
+			gfs2_consist_inode(GFS2_I(inode));
+			return ERR_PTR(-EIO);
+		}
 	} while(1);
 
 	switch(ret) {
@@ -597,10 +602,6 @@ static struct gfs2_dirent *gfs2_dirent_scan(struct inode *inode, void *buf,
 		BUG_ON(ret > 0);
 		return ERR_PTR(ret);
 	}
-
-consist_inode:
-	gfs2_consist_inode(GFS2_I(inode));
-	return ERR_PTR(-EIO);
 }
 
 static int dirent_check_reclen(struct gfs2_inode *dip,
@@ -609,14 +610,16 @@ static int dirent_check_reclen(struct gfs2_inode *dip,
 	const void *ptr = d;
 	u16 rec_len = be16_to_cpu(d->de_rec_len);
 
-	if (unlikely(rec_len < sizeof(struct gfs2_dirent)))
-		goto broken;
+	if (unlikely(rec_len < sizeof(struct gfs2_dirent))) {
+		gfs2_consist_inode(dip);
+		return -EIO;
+	}
 	ptr += rec_len;
 	if (ptr < end_p)
 		return rec_len;
 	if (ptr == end_p)
 		return -ENOENT;
-broken:
+
 	gfs2_consist_inode(dip);
 	return -EIO;
 }

fs/gfs2/file.c

@@ -376,23 +376,23 @@ static void gfs2_size_hint(struct file *filep, loff_t offset, size_t size)
 }
 
 /**
- * gfs2_allocate_page_backing - Allocate blocks for a write fault
- * @page: The (locked) page to allocate backing for
+ * gfs2_allocate_folio_backing - Allocate blocks for a write fault
+ * @folio: The (locked) folio to allocate backing for
  * @length: Size of the allocation
  *
- * We try to allocate all the blocks required for the page in one go.  This
+ * We try to allocate all the blocks required for the folio in one go.  This
  * might fail for various reasons, so we keep trying until all the blocks to
- * back this page are allocated.  If some of the blocks are already allocated,
+ * back this folio are allocated.  If some of the blocks are already allocated,
  * that is ok too.
  */
-static int gfs2_allocate_page_backing(struct page *page, unsigned int length)
+static int gfs2_allocate_folio_backing(struct folio *folio, size_t length)
 {
-	u64 pos = page_offset(page);
+	u64 pos = folio_pos(folio);
 
 	do {
 		struct iomap iomap = { };
 
-		if (gfs2_iomap_alloc(page->mapping->host, pos, length, &iomap))
+		if (gfs2_iomap_alloc(folio->mapping->host, pos, length, &iomap))
 			return -EIO;
 
 		if (length < iomap.length)
@@ -414,16 +414,16 @@ static int gfs2_allocate_page_backing(struct page *page, unsigned int length)
 
 static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 {
-	struct page *page = vmf->page;
+	struct folio *folio = page_folio(vmf->page);
 	struct inode *inode = file_inode(vmf->vma->vm_file);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct gfs2_alloc_parms ap = {};
-	u64 offset = page_offset(page);
+	u64 pos = folio_pos(folio);
 	unsigned int data_blocks, ind_blocks, rblocks;
 	vm_fault_t ret = VM_FAULT_LOCKED;
 	struct gfs2_holder gh;
-	unsigned int length;
+	size_t length;
 	loff_t size;
 	int err;
 
@@ -436,23 +436,23 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 		goto out_uninit;
 	}
 
-	/* Check page index against inode size */
+	/* Check folio index against inode size */
 	size = i_size_read(inode);
-	if (offset >= size) {
+	if (pos >= size) {
 		ret = VM_FAULT_SIGBUS;
 		goto out_unlock;
 	}
 
-	/* Update file times before taking page lock */
+	/* Update file times before taking folio lock */
 	file_update_time(vmf->vma->vm_file);
 
-	/* page is wholly or partially inside EOF */
-	if (size - offset < PAGE_SIZE)
-		length = size - offset;
+	/* folio is wholly or partially inside EOF */
+	if (size - pos < folio_size(folio))
+		length = size - pos;
 	else
-		length = PAGE_SIZE;
+		length = folio_size(folio);
 
-	gfs2_size_hint(vmf->vma->vm_file, offset, length);
+	gfs2_size_hint(vmf->vma->vm_file, pos, length);
 
 	set_bit(GLF_DIRTY, &ip->i_gl->gl_flags);
 	set_bit(GIF_SW_PAGED, &ip->i_flags);
@@ -463,11 +463,12 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 	 */
 
 	if (!gfs2_is_stuffed(ip) &&
-	    !gfs2_write_alloc_required(ip, offset, length)) {
-		lock_page(page);
-		if (!PageUptodate(page) || page->mapping != inode->i_mapping) {
+	    !gfs2_write_alloc_required(ip, pos, length)) {
+		folio_lock(folio);
+		if (!folio_test_uptodate(folio) ||
+		    folio->mapping != inode->i_mapping) {
 			ret = VM_FAULT_NOPAGE;
-			unlock_page(page);
+			folio_unlock(folio);
 		}
 		goto out_unlock;
 	}
@@ -504,7 +505,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 		goto out_trans_fail;
 	}
 
-	/* Unstuff, if required, and allocate backing blocks for page */
+	/* Unstuff, if required, and allocate backing blocks for folio */
 	if (gfs2_is_stuffed(ip)) {
 		err = gfs2_unstuff_dinode(ip);
 		if (err) {
@@ -513,22 +514,22 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 		}
 	}
 
-	lock_page(page);
+	folio_lock(folio);
 	/* If truncated, we must retry the operation, we may have raced
 	 * with the glock demotion code.
 	 */
-	if (!PageUptodate(page) || page->mapping != inode->i_mapping) {
+	if (!folio_test_uptodate(folio) || folio->mapping != inode->i_mapping) {
 		ret = VM_FAULT_NOPAGE;
 		goto out_page_locked;
 	}
 
-	err = gfs2_allocate_page_backing(page, length);
+	err = gfs2_allocate_folio_backing(folio, length);
 	if (err)
 		ret = vmf_fs_error(err);
 
 out_page_locked:
 	if (ret != VM_FAULT_LOCKED)
-		unlock_page(page);
+		folio_unlock(folio);
 out_trans_end:
 	gfs2_trans_end(sdp);
 out_trans_fail:
@@ -540,8 +541,8 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
 out_uninit:
 	gfs2_holder_uninit(&gh);
 	if (ret == VM_FAULT_LOCKED) {
-		set_page_dirty(page);
-		wait_for_stable_page(page);
+		folio_mark_dirty(folio);
+		folio_wait_stable(folio);
 	}
 	sb_end_pagefault(inode->i_sb);
 	return ret;

fs/gfs2/glock.h

@@ -172,7 +172,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 		   int create, struct gfs2_glock **glp);
 struct gfs2_glock *gfs2_glock_hold(struct gfs2_glock *gl);
 void gfs2_glock_put(struct gfs2_glock *gl);
-void gfs2_glock_queue_put(struct gfs2_glock *gl);
+void gfs2_glock_put_async(struct gfs2_glock *gl);
 
 void __gfs2_holder_init(struct gfs2_glock *gl, unsigned int state,
 		        u16 flags, struct gfs2_holder *gh,
@@ -252,6 +252,7 @@ void gfs2_gl_dq_holders(struct gfs2_sbd *sdp);
 void gfs2_glock_thaw(struct gfs2_sbd *sdp);
 void gfs2_glock_add_to_lru(struct gfs2_glock *gl);
 void gfs2_glock_free(struct gfs2_glock *gl);
+void gfs2_glock_free_later(struct gfs2_glock *gl);
 
 int __init gfs2_glock_init(void);
 void gfs2_glock_exit(void);

fs/gfs2/glops.c

@@ -82,6 +82,9 @@ static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
 	GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
 	spin_unlock(&sdp->sd_ail_lock);
 	gfs2_log_unlock(sdp);
+
+	if (gfs2_withdrawing(sdp))
+		gfs2_withdraw(sdp);
 }
 
 
@@ -409,10 +412,14 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 	struct inode *inode = &ip->i_inode;
 	bool is_new = inode->i_state & I_NEW;
 
-	if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr)))
-		goto corrupt;
-	if (unlikely(!is_new && inode_wrong_type(inode, mode)))
-		goto corrupt;
+	if (unlikely(ip->i_no_addr != be64_to_cpu(str->di_num.no_addr))) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
+	if (unlikely(!is_new && inode_wrong_type(inode, mode))) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
 	ip->i_no_formal_ino = be64_to_cpu(str->di_num.no_formal_ino);
 	inode->i_mode = mode;
 	if (is_new) {
@@ -449,26 +456,28 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
 	/* i_diskflags and i_eattr must be set before gfs2_set_inode_flags() */
 	gfs2_set_inode_flags(inode);
 	height = be16_to_cpu(str->di_height);
-	if (unlikely(height > sdp->sd_max_height))
-		goto corrupt;
+	if (unlikely(height > sdp->sd_max_height)) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
 	ip->i_height = (u8)height;
 
 	depth = be16_to_cpu(str->di_depth);
-	if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
-		goto corrupt;
+	if (unlikely(depth > GFS2_DIR_MAX_DEPTH)) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
 	ip->i_depth = (u8)depth;
 	ip->i_entries = be32_to_cpu(str->di_entries);
 
-	if (gfs2_is_stuffed(ip) && inode->i_size > gfs2_max_stuffed_size(ip))
-		goto corrupt;
-
+	if (gfs2_is_stuffed(ip) && inode->i_size > gfs2_max_stuffed_size(ip)) {
+		gfs2_consist_inode(ip);
+		return -EIO;
+	}
 	if (S_ISREG(inode->i_mode))
 		gfs2_set_aops(inode);
 
 	return 0;
-corrupt:
-	gfs2_consist_inode(ip);
-	return -EIO;
 }
 
 /**

fs/gfs2/incore.h

@@ -838,6 +838,7 @@ struct gfs2_sbd {
 	/* For quiescing the filesystem */
 	struct gfs2_holder sd_freeze_gh;
 	struct mutex sd_freeze_mutex;
+	struct list_head sd_dead_glocks;
 
 	char sd_fsname[GFS2_FSNAME_LEN + 3 * sizeof(int) + 2];
 	char sd_table_name[GFS2_FSNAME_LEN];

fs/gfs2/lock_dlm.c

@@ -121,6 +121,11 @@ static void gdlm_ast(void *arg)
 	struct gfs2_glock *gl = arg;
 	unsigned ret = gl->gl_state;
 
+	/* If the glock is dead, we only react to a dlm_unlock() reply. */
+	if (__lockref_is_dead(&gl->gl_lockref) &&
+	    gl->gl_lksb.sb_status != -DLM_EUNLOCK)
+		return;
+
 	gfs2_update_reply_times(gl);
 	BUG_ON(gl->gl_lksb.sb_flags & DLM_SBF_DEMOTED);
 
@@ -171,6 +176,9 @@ static void gdlm_bast(void *arg, int mode)
 {
 	struct gfs2_glock *gl = arg;
 
+	if (__lockref_is_dead(&gl->gl_lockref))
+		return;
+
 	switch (mode) {
 	case DLM_LOCK_EX:
 		gfs2_glock_cb(gl, LM_ST_UNLOCKED);
@@ -291,8 +299,12 @@ static void gdlm_put_lock(struct gfs2_glock *gl)
 	struct lm_lockstruct *ls = &sdp->sd_lockstruct;
 	int error;
 
-	if (gl->gl_lksb.sb_lkid == 0)
-		goto out_free;
+	BUG_ON(!__lockref_is_dead(&gl->gl_lockref));
+
+	if (gl->gl_lksb.sb_lkid == 0) {
+		gfs2_glock_free(gl);
+		return;
+	}
 
 	clear_bit(GLF_BLOCKING, &gl->gl_flags);
 	gfs2_glstats_inc(gl, GFS2_LKS_DCOUNT);
@@ -300,13 +312,23 @@ static void gdlm_put_lock(struct gfs2_glock *gl)
 	gfs2_update_request_times(gl);
 
 	/* don't want to call dlm if we've unmounted the lock protocol */
-	if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags))
-		goto out_free;
-	/* don't want to skip dlm_unlock writing the lvb when lock has one */
+	if (test_bit(DFL_UNMOUNT, &ls->ls_recover_flags)) {
+		gfs2_glock_free(gl);
+		return;
+	}
+
+	/*
+	 * When the lockspace is released, all remaining glocks will be
+	 * unlocked automatically.  This is more efficient than unlocking them
+	 * individually, but when the lock is held in DLM_LOCK_EX or
+	 * DLM_LOCK_PW mode, the lock value block (LVB) will be lost.
+	 */
 
 	if (test_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags) &&
-	    !gl->gl_lksb.sb_lvbptr)
-		goto out_free;
+	    (!gl->gl_lksb.sb_lvbptr || gl->gl_state != LM_ST_EXCLUSIVE)) {
+		gfs2_glock_free_later(gl);
+		return;
+	}
 
 again:
 	error = dlm_unlock(ls->ls_dlm, gl->gl_lksb.sb_lkid, DLM_LKF_VALBLK,
@@ -321,10 +343,6 @@ static void gdlm_put_lock(struct gfs2_glock *gl)
 		       gl->gl_name.ln_type,
 		       (unsigned long long)gl->gl_name.ln_number, error);
 	}
-	return;
-
-out_free:
-	gfs2_glock_free(gl);
 }
 
 static void gdlm_cancel(struct gfs2_glock *gl)

fs/gfs2/log.c

@@ -786,7 +786,7 @@ void gfs2_glock_remove_revoke(struct gfs2_glock *gl)
 {
 	if (atomic_dec_return(&gl->gl_revokes) == 0) {
 		clear_bit(GLF_LFLUSH, &gl->gl_flags);
-		gfs2_glock_queue_put(gl);
+		gfs2_glock_put_async(gl);
 	}
 }
 
@@ -1108,7 +1108,8 @@ void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl, u32 flags)
 	lops_before_commit(sdp, tr);
 	if (gfs2_withdrawing_or_withdrawn(sdp))
 		goto out_withdraw;
-	gfs2_log_submit_bio(&sdp->sd_jdesc->jd_log_bio, REQ_OP_WRITE);
+	if (sdp->sd_jdesc)
+		gfs2_log_submit_bio(&sdp->sd_jdesc->jd_log_bio, REQ_OP_WRITE);
 	if (gfs2_withdrawing_or_withdrawn(sdp))
 		goto out_withdraw;
 

fs/gfs2/meta_io.c

@@ -32,14 +32,14 @@
 
 static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wbc)
 {
+	struct folio *folio = page_folio(page);
 	struct buffer_head *bh, *head;
 	int nr_underway = 0;
 	blk_opf_t write_flags = REQ_META | REQ_PRIO | wbc_to_write_flags(wbc);
 
-	BUG_ON(!PageLocked(page));
-	BUG_ON(!page_has_buffers(page));
+	BUG_ON(!folio_test_locked(folio));
 
-	head = page_buffers(page);
+	head = folio_buffers(folio);
 	bh = head;
 
 	do {
@@ -55,7 +55,7 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
 		if (wbc->sync_mode != WB_SYNC_NONE) {
 			lock_buffer(bh);
 		} else if (!trylock_buffer(bh)) {
-			redirty_page_for_writepage(wbc, page);
+			folio_redirty_for_writepage(wbc, folio);
 			continue;
 		}
 		if (test_clear_buffer_dirty(bh)) {
@@ -69,8 +69,8 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
 	 * The page and its buffers are protected by PageWriteback(), so we can
 	 * drop the bh refcounts early.
 	 */
-	BUG_ON(PageWriteback(page));
-	set_page_writeback(page);
+	BUG_ON(folio_test_writeback(folio));
+	folio_start_writeback(folio);
 
 	do {
 		struct buffer_head *next = bh->b_this_page;
@@ -80,10 +80,10 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb
 		}
 		bh = next;
 	} while (bh != head);
-	unlock_page(page);
+	folio_unlock(folio);
 
 	if (nr_underway == 0)
-		end_page_writeback(page);
+		folio_end_writeback(folio);
 
 	return 0;
 }

fs/gfs2/ops_fstype.c

@@ -136,6 +136,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 	atomic_set(&sdp->sd_log_in_flight, 0);
 	init_waitqueue_head(&sdp->sd_log_flush_wait);
 	mutex_init(&sdp->sd_freeze_mutex);
+	INIT_LIST_HEAD(&sdp->sd_dead_glocks);
 
 	return sdp;
 
@@ -184,22 +185,10 @@ static int gfs2_check_sb(struct gfs2_sbd *sdp, int silent)
 	return 0;
 }
 
-static void end_bio_io_page(struct bio *bio)
-{
-	struct page *page = bio->bi_private;
-
-	if (!bio->bi_status)
-		SetPageUptodate(page);
-	else
-		pr_warn("error %d reading superblock\n", bio->bi_status);
-	unlock_page(page);
-}
-
-static void gfs2_sb_in(struct gfs2_sbd *sdp, const void *buf)
+static void gfs2_sb_in(struct gfs2_sbd *sdp, const struct gfs2_sb *str)
 {
 	struct gfs2_sb_host *sb = &sdp->sd_sb;
 	struct super_block *s = sdp->sd_vfs;
-	const struct gfs2_sb *str = buf;
 
 	sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic);
 	sb->sb_type = be32_to_cpu(str->sb_header.mh_type);
@@ -239,34 +228,26 @@ static void gfs2_sb_in(struct gfs2_sbd *sdp, const void *buf)
 static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector, int silent)
 {
 	struct super_block *sb = sdp->sd_vfs;
-	struct gfs2_sb *p;
 	struct page *page;
-	struct bio *bio;
+	struct bio_vec bvec;
+	struct bio bio;
+	int err;
 
-	page = alloc_page(GFP_NOFS);
+	page = alloc_page(GFP_KERNEL);
 	if (unlikely(!page))
 		return -ENOMEM;
 
-	ClearPageUptodate(page);
-	ClearPageDirty(page);
-	lock_page(page);
-
-	bio = bio_alloc(sb->s_bdev, 1, REQ_OP_READ | REQ_META, GFP_NOFS);
-	bio->bi_iter.bi_sector = sector * (sb->s_blocksize >> 9);
-	__bio_add_page(bio, page, PAGE_SIZE, 0);
+	bio_init(&bio, sb->s_bdev, &bvec, 1, REQ_OP_READ | REQ_META);
+	bio.bi_iter.bi_sector = sector * (sb->s_blocksize >> 9);
+	__bio_add_page(&bio, page, PAGE_SIZE, 0);
 
-	bio->bi_end_io = end_bio_io_page;
-	bio->bi_private = page;
-	submit_bio(bio);
-	wait_on_page_locked(page);
-	bio_put(bio);
-	if (!PageUptodate(page)) {
+	err = submit_bio_wait(&bio);
+	if (err) {
+		pr_warn("error %d reading superblock\n", err);
 		__free_page(page);
-		return -EIO;
+		return err;
 	}
-	p = kmap(page);
-	gfs2_sb_in(sdp, p);
-	kunmap(page);
+	gfs2_sb_in(sdp, page_address(page));
 	__free_page(page);
 	return gfs2_check_sb(sdp, silent);
 }
@@ -1288,7 +1269,7 @@ static int gfs2_fill_super(struct super_block *sb, struct fs_context *fc)
 		error = gfs2_make_fs_rw(sdp);
 
 	if (error) {
-		gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+		gfs2_freeze_unlock(sdp);
 		gfs2_destroy_threads(sdp);
 		fs_err(sdp, "can't make FS RW: %d\n", error);
 		goto fail_per_node;

fs/gfs2/rgrp.c

@@ -814,11 +814,11 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
 	bi = rgd->rd_bits + (length - 1);
 	if ((bi->bi_start + bi->bi_bytes) * GFS2_NBBY != rgd->rd_data) {
 		gfs2_lm(sdp,
-			"ri_addr = %llu\n"
-			"ri_length = %u\n"
-			"ri_data0 = %llu\n"
-			"ri_data = %u\n"
-			"ri_bitbytes = %u\n"
+			"ri_addr=%llu "
+			"ri_length=%u "
+			"ri_data0=%llu "
+			"ri_data=%u "
+			"ri_bitbytes=%u "
 			"start=%u len=%u offset=%u\n",
 			(unsigned long long)rgd->rd_addr,
 			rgd->rd_length,

fs/gfs2/super.c

@@ -67,9 +67,13 @@ void gfs2_jindex_free(struct gfs2_sbd *sdp)
 	sdp->sd_journals = 0;
 	spin_unlock(&sdp->sd_jindex_spin);
 
+	down_write(&sdp->sd_log_flush_lock);
 	sdp->sd_jdesc = NULL;
+	up_write(&sdp->sd_log_flush_lock);
+
 	while (!list_empty(&list)) {
 		jd = list_first_entry(&list, struct gfs2_jdesc, jd_list);
+		BUG_ON(jd->jd_log_bio);
 		gfs2_free_journal_extents(jd);
 		list_del(&jd->jd_list);
 		iput(jd->jd_inode);
@@ -354,7 +358,7 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)
 		list_add(&lfcc->list, &list);
 	}
 
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 
 	error = gfs2_glock_nq_init(sdp->sd_freeze_gl, LM_ST_EXCLUSIVE,
 				   LM_FLAG_NOEXP | GL_NOPID,
@@ -378,7 +382,7 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp)
 	if (!error)
 		goto out;  /* success */
 
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 
 relock_shared:
 	error2 = gfs2_freeze_lock_shared(sdp);
@@ -617,7 +621,7 @@ static void gfs2_put_super(struct super_block *sb)
 
 	/*  Release stuff  */
 
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 
 	iput(sdp->sd_jindex);
 	iput(sdp->sd_statfs_inode);
@@ -646,10 +650,7 @@ static void gfs2_put_super(struct super_block *sb)
 	gfs2_gl_hash_clear(sdp);
 	truncate_inode_pages_final(&sdp->sd_aspace);
 	gfs2_delete_debugfs_file(sdp);
-	/*  Unmount the locking protocol  */
-	gfs2_lm_unmount(sdp);
 
-	/*  At this point, we're through participating in the lockspace  */
 	gfs2_sys_fs_del(sdp);
 	free_sbd(sdp);
 }
@@ -706,7 +707,7 @@ void gfs2_freeze_func(struct work_struct *work)
 	if (error)
 		goto freeze_failed;
 
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 	set_bit(SDF_FROZEN, &sdp->sd_flags);
 
 	error = gfs2_do_thaw(sdp);
@@ -811,7 +812,7 @@ static int gfs2_thaw_super(struct super_block *sb, enum freeze_holder who)
 	}
 
 	atomic_inc(&sb->s_active);
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 
 	error = gfs2_do_thaw(sdp);
 
@@ -832,7 +833,7 @@ void gfs2_thaw_freeze_initiator(struct super_block *sb)
 	if (!test_bit(SDF_FREEZE_INITIATOR, &sdp->sd_flags))
 		goto out;
 
-	gfs2_freeze_unlock(&sdp->sd_freeze_gh);
+	gfs2_freeze_unlock(sdp);
 
 out:
 	mutex_unlock(&sdp->sd_freeze_mutex);
@@ -1045,7 +1046,7 @@ static int gfs2_drop_inode(struct inode *inode)
 
 		gfs2_glock_hold(gl);
 		if (!gfs2_queue_try_to_evict(gl))
-			gfs2_glock_queue_put(gl);
+			gfs2_glock_put_async(gl);
 		return 0;
 	}
 
@@ -1251,7 +1252,7 @@ static int gfs2_dinode_dealloc(struct gfs2_inode *ip)
 static void gfs2_glock_put_eventually(struct gfs2_glock *gl)
 {
 	if (current->flags & PF_MEMALLOC)
-		gfs2_glock_queue_put(gl);
+		gfs2_glock_put_async(gl);
 	else
 		gfs2_glock_put(gl);
 }
@@ -1261,7 +1262,6 @@ static bool gfs2_upgrade_iopen_glock(struct inode *inode)
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct gfs2_holder *gh = &ip->i_iopen_gh;
-	long timeout = 5 * HZ;
 	int error;
 
 	gh->gh_flags |= GL_NOCACHE;
@@ -1292,10 +1292,10 @@ static bool gfs2_upgrade_iopen_glock(struct inode *inode)
 	if (error)
 		return false;
 
-	timeout = wait_event_interruptible_timeout(sdp->sd_async_glock_wait,
+	wait_event_interruptible_timeout(sdp->sd_async_glock_wait,
 		!test_bit(HIF_WAIT, &gh->gh_iflags) ||
 		test_bit(GLF_DEMOTE, &ip->i_gl->gl_flags),
-		timeout);
+		5 * HZ);
 	if (!test_bit(HIF_HOLDER, &gh->gh_iflags)) {
 		gfs2_glock_dq(gh);
 		return false;

fs/gfs2/sys.c

@@ -88,7 +88,7 @@ static ssize_t status_show(struct gfs2_sbd *sdp, char *buf)
 		     "Withdraw In Prog:         %d\n"
 		     "Remote Withdraw:          %d\n"
 		     "Withdraw Recovery:        %d\n"
-		     "Deactivating:             %d\n"
+		     "Killing:                  %d\n"
 		     "sd_log_error:             %d\n"
 		     "sd_log_flush_lock:        %d\n"
 		     "sd_log_num_revoke:        %u\n"
@@ -336,7 +336,7 @@ static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len
 		return -EINVAL;
 	if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags))
 		fs_info(sdp, "demote interface used\n");
-	rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl);
+	rv = gfs2_glock_get(sdp, glnum, glops, NO_CREATE, &gl);
 	if (rv)
 		return rv;
 	gfs2_glock_cb(gl, glmode);

fs/gfs2/util.c

@@ -109,10 +109,10 @@ int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp)
 	return error;
 }
 
-void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh)
+void gfs2_freeze_unlock(struct gfs2_sbd *sdp)
 {
-	if (gfs2_holder_initialized(freeze_gh))
-		gfs2_glock_dq_uninit(freeze_gh);
+	if (gfs2_holder_initialized(&sdp->sd_freeze_gh))
+		gfs2_glock_dq_uninit(&sdp->sd_freeze_gh);
 }
 
 static void signal_our_withdraw(struct gfs2_sbd *sdp)
@@ -255,7 +255,7 @@ static void signal_our_withdraw(struct gfs2_sbd *sdp)
 		gfs2_glock_nq(&sdp->sd_live_gh);
 	}
 
-	gfs2_glock_queue_put(live_gl); /* drop extra reference we acquired */
+	gfs2_glock_put(live_gl); /* drop extra reference we acquired */
 	clear_bit(SDF_WITHDRAW_RECOVERY, &sdp->sd_flags);
 
 	/*
@@ -350,7 +350,6 @@ int gfs2_withdraw(struct gfs2_sbd *sdp)
 			fs_err(sdp, "telling LM to unmount\n");
 			lm->lm_unmount(sdp);
 		}
-		set_bit(SDF_SKIP_DLM_UNLOCK, &sdp->sd_flags);
 		fs_err(sdp, "File system withdrawn\n");
 		dump_stack();
 		clear_bit(SDF_WITHDRAW_IN_PROG, &sdp->sd_flags);
@@ -376,8 +375,8 @@ void gfs2_assert_withdraw_i(struct gfs2_sbd *sdp, char *assertion,
 		return;
 
 	fs_err(sdp,
-	       "fatal: assertion \"%s\" failed\n"
-	       "   function = %s, file = %s, line = %u\n",
+	       "fatal: assertion \"%s\" failed - "
+	       "function = %s, file = %s, line = %u\n",
 	       assertion, function, file, line);
 
 	/*
@@ -407,7 +406,8 @@ void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
 		return;
 
 	if (sdp->sd_args.ar_errors == GFS2_ERRORS_WITHDRAW)
-		fs_warn(sdp, "warning: assertion \"%s\" failed at function = %s, file = %s, line = %u\n",
+		fs_warn(sdp, "warning: assertion \"%s\" failed - "
+			"function = %s, file = %s, line = %u\n",
 			assertion, function, file, line);
 
 	if (sdp->sd_args.ar_debug)
@@ -416,10 +416,10 @@ void gfs2_assert_warn_i(struct gfs2_sbd *sdp, char *assertion,
 		dump_stack();
 
 	if (sdp->sd_args.ar_errors == GFS2_ERRORS_PANIC)
-		panic("GFS2: fsid=%s: warning: assertion \"%s\" failed\n"
-		      "GFS2: fsid=%s:   function = %s, file = %s, line = %u\n",
+		panic("GFS2: fsid=%s: warning: assertion \"%s\" failed - "
+		      "function = %s, file = %s, line = %u\n",
 		      sdp->sd_fsname, assertion,
-		      sdp->sd_fsname, function, file, line);
+		      function, file, line);
 
 	sdp->sd_last_warning = jiffies;
 }
@@ -432,7 +432,8 @@ void gfs2_consist_i(struct gfs2_sbd *sdp, const char *function,
 		    char *file, unsigned int line)
 {
 	gfs2_lm(sdp,
-		"fatal: filesystem consistency error - function = %s, file = %s, line = %u\n",
+		"fatal: filesystem consistency error - "
+		"function = %s, file = %s, line = %u\n",
 		function, file, line);
 	gfs2_withdraw(sdp);
 }
@@ -447,9 +448,9 @@ void gfs2_consist_inode_i(struct gfs2_inode *ip,
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 
 	gfs2_lm(sdp,
-		"fatal: filesystem consistency error\n"
-		"  inode = %llu %llu\n"
-		"  function = %s, file = %s, line = %u\n",
+		"fatal: filesystem consistency error - "
+		"inode = %llu %llu, "
+		"function = %s, file = %s, line = %u\n",
 		(unsigned long long)ip->i_no_formal_ino,
 		(unsigned long long)ip->i_no_addr,
 		function, file, line);
@@ -470,9 +471,9 @@ void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
 	sprintf(fs_id_buf, "fsid=%s: ", sdp->sd_fsname);
 	gfs2_rgrp_dump(NULL, rgd, fs_id_buf);
 	gfs2_lm(sdp,
-		"fatal: filesystem consistency error\n"
-		"  RG = %llu\n"
-		"  function = %s, file = %s, line = %u\n",
+		"fatal: filesystem consistency error - "
+		"RG = %llu, "
+		"function = %s, file = %s, line = %u\n",
 		(unsigned long long)rgd->rd_addr,
 		function, file, line);
 	gfs2_dump_glock(NULL, rgd->rd_gl, 1);
@@ -486,16 +487,16 @@ void gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd,
  */
 
 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
-		       const char *type, const char *function, char *file,
+		       const char *function, char *file,
 		       unsigned int line)
 {
 	int me;
 
 	gfs2_lm(sdp,
-		"fatal: invalid metadata block\n"
-		"  bh = %llu (%s)\n"
-		"  function = %s, file = %s, line = %u\n",
-		(unsigned long long)bh->b_blocknr, type,
+		"fatal: invalid metadata block - "
+		"bh = %llu (bad magic number), "
+		"function = %s, file = %s, line = %u\n",
+		(unsigned long long)bh->b_blocknr,
 		function, file, line);
 	me = gfs2_withdraw(sdp);
 	return (me) ? -1 : -2;
@@ -514,9 +515,9 @@ int gfs2_metatype_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
 	int me;
 
 	gfs2_lm(sdp,
-		"fatal: invalid metadata block\n"
-		"  bh = %llu (type: exp=%u, found=%u)\n"
-		"  function = %s, file = %s, line = %u\n",
+		"fatal: invalid metadata block - "
+		"bh = %llu (type: exp=%u, found=%u), "
+		"function = %s, file = %s, line = %u\n",
 		(unsigned long long)bh->b_blocknr, type, t,
 		function, file, line);
 	me = gfs2_withdraw(sdp);
@@ -533,8 +534,8 @@ int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function, char *file,
 		    unsigned int line)
 {
 	gfs2_lm(sdp,
-		"fatal: I/O error\n"
-		"  function = %s, file = %s, line = %u\n",
+		"fatal: I/O error - "
+		"function = %s, file = %s, line = %u\n",
 		function, file, line);
 	return gfs2_withdraw(sdp);
 }
@@ -551,9 +552,9 @@ void gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
 	if (gfs2_withdrawing_or_withdrawn(sdp))
 		return;
 
-	fs_err(sdp, "fatal: I/O error\n"
-	       "  block = %llu\n"
-	       "  function = %s, file = %s, line = %u\n",
+	fs_err(sdp, "fatal: I/O error - "
+	       "block = %llu, "
+	       "function = %s, file = %s, line = %u\n",
 	       (unsigned long long)bh->b_blocknr, function, file, line);
 	if (withdraw)
 		gfs2_withdraw(sdp);

fs/gfs2/util.h

@@ -92,7 +92,7 @@ gfs2_consist_rgrpd_i((rgd), __func__, __FILE__, __LINE__)
 
 
 int gfs2_meta_check_ii(struct gfs2_sbd *sdp, struct buffer_head *bh,
-		       const char *type, const char *function,
+		       const char *function,
 		       char *file, unsigned int line);
 
 static inline int gfs2_meta_check(struct gfs2_sbd *sdp,
@@ -123,7 +123,7 @@ static inline int gfs2_metatype_check_i(struct gfs2_sbd *sdp,
 	u32 magic = be32_to_cpu(mh->mh_magic);
 	u16 t = be32_to_cpu(mh->mh_type);
 	if (unlikely(magic != GFS2_MAGIC))
-		return gfs2_meta_check_ii(sdp, bh, "magic number", function,
+		return gfs2_meta_check_ii(sdp, bh, function,
 					  file, line);
         if (unlikely(t != type))
 		return gfs2_metatype_check_ii(sdp, bh, type, t, function,
@@ -150,7 +150,7 @@ int gfs2_io_error_i(struct gfs2_sbd *sdp, const char *function,
 int check_journal_clean(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
 		        bool verbose);
 int gfs2_freeze_lock_shared(struct gfs2_sbd *sdp);
-void gfs2_freeze_unlock(struct gfs2_holder *freeze_gh);
+void gfs2_freeze_unlock(struct gfs2_sbd *sdp);
 
 #define gfs2_io_error(sdp) \
 gfs2_io_error_i((sdp), __func__, __FILE__, __LINE__)

fs/gfs2/xattr.c

@@ -96,30 +96,34 @@ static int ea_foreach_i(struct gfs2_inode *ip, struct buffer_head *bh,
 		return -EIO;
 
 	for (ea = GFS2_EA_BH2FIRST(bh);; prev = ea, ea = GFS2_EA2NEXT(ea)) {
-		if (!GFS2_EA_REC_LEN(ea))
-			goto fail;
+		if (!GFS2_EA_REC_LEN(ea)) {
+			gfs2_consist_inode(ip);
+			return -EIO;
+		}
 		if (!(bh->b_data <= (char *)ea && (char *)GFS2_EA2NEXT(ea) <=
-						  bh->b_data + bh->b_size))
-			goto fail;
-		if (!gfs2_eatype_valid(sdp, ea->ea_type))
-			goto fail;
+						  bh->b_data + bh->b_size)) {
+			gfs2_consist_inode(ip);
+			return -EIO;
+		}
+		if (!gfs2_eatype_valid(sdp, ea->ea_type)) {
+			gfs2_consist_inode(ip);
+			return -EIO;
+		}
 		error = ea_call(ip, bh, ea, prev, data);
 		if (error)
 			return error;
 
 		if (GFS2_EA_IS_LAST(ea)) {
 			if ((char *)GFS2_EA2NEXT(ea) !=
-			    bh->b_data + bh->b_size)
-				goto fail;
+			    bh->b_data + bh->b_size) {
+				gfs2_consist_inode(ip);
+				return -EIO;
+			}
 			break;
 		}
 	}
 
 	return error;
-
-fail:
-	gfs2_consist_inode(ip);
-	return -EIO;
 }
 
 static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)