ext4: call sync_blockdev() before invalidate_bdev() in put_super()

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[ Upstream commit 89d96a6f8e ]

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>

...

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Theodore Ts'o 2015-06-20 22:50:33 -04:00 • committed by Sasha Levin

parent 23e190ff44

commit a609b38297

1 changed files with 1 additions and 0 deletions

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fs/ext4/super.c

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