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Btrfs: return error when we specify wrong start to defrag
authorLiu Bo <bo.li.liu@oracle.com>
Tue, 16 Apr 2013 09:20:28 +0000 (09:20 +0000)
committerJosef Bacik <jbacik@fusionio.com>
Mon, 6 May 2013 19:54:55 +0000 (15:54 -0400)
commit0abd5b17249ea5ca49a3a9ad4285cac3dfa8c30b
tree26b1399cc7b83ddabd2427d283a5a39a1dd878c5tree | snapshot (tar.gz zip)
parent3c59ccd32abb8f636b1573533d3e77972e80a9c9commit | diff
Btrfs: return error when we specify wrong start to defrag

We need such a sanity check for wrong start when we defrag a file, otherwise,
even with a wrong start that's larger than file size, we can end up changing
not only inode's force compress flag but also FS's incompat flags.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
fs/btrfs/ioctl.c diff | blob | blame | history