• Theodore Ts'o's avatar
    ext4: call sync_blockdev() before invalidate_bdev() in put_super() · 18cb11c2
    Theodore Ts'o authored
    commit 89d96a6f upstream.
    
    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: default avatarTheodore Ts'o <tytso@mit.edu>
    Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
    18cb11c2
super.c 156 KB