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| author | Theodore Ts'o <tytso@mit.edu> | 2015-06-20 22:50:33 -0400 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-07-03 23:02:34 -0400 |
| commit | a609b382970b68165c4e2d01f456bc7ed79ca96c (patch) | |
| tree | 5f3c79d48b4d8025b46a7aea07bfc7a5a7b5f501 /fs | |
| parent | 23e190ff4438d82c47b7f3f6972cf592ac2c5915 (diff) | |
| download | lwn-a609b382970b68165c4e2d01f456bc7ed79ca96c.tar.gz lwn-a609b382970b68165c4e2d01f456bc7ed79ca96c.zip | |
ext4: call sync_blockdev() before invalidate_bdev() in put_super()
[ Upstream commit 89d96a6f8e6491f24fc8f99fd6ae66820e85c6c1 ]
Normally all of the buffers will have been forced out to disk before
we call invalidate_bdev(), but there will be some cases, where a file
system operation was aborted due to an ext4_error(), where there may
still be some dirty buffers in the buffer cache for the device. So
try to force them out to memory before calling invalidate_bdev().
This fixes a warning triggered by generic/081:
WARNING: CPU: 1 PID: 3473 at /usr/projects/linux/ext4/fs/block_dev.c:56 __blkdev_put+0xb5/0x16f()
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index fc7391e14c2a..bf038468d752 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -831,6 +831,7 @@ static void ext4_put_super(struct super_block *sb) dump_orphan_list(sb, sbi); J_ASSERT(list_empty(&sbi->s_orphan)); + sync_blockdev(sb->s_bdev); invalidate_bdev(sb->s_bdev); if (sbi->journal_bdev && sbi->journal_bdev != sb->s_bdev) { /* |