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authorTheodore Ts'o <tytso@mit.edu>2015-06-20 22:50:33 -0400
committerTheodore Ts'o <tytso@mit.edu>2015-06-20 22:50:33 -0400
commit89d96a6f8e6491f24fc8f99fd6ae66820e85c6c1 (patch)
tree3c624725fe289d7e30553401f5bb1fe9e74ca51b /fs/ext4/super.c
parent2143c1965a761332ae417b22fd477b636e4f54ec (diff)
ext4: call sync_blockdev() before invalidate_bdev() in put_super()
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
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index fdac076e0791..2858ac09f5a3 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -828,6 +828,7 @@ 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) {
/*