]> git.karo-electronics.de Git - linux-beck.git/commit
xfs: fix the extent count when allocating an new indirection array entry
authorJie Liu <jeff.liu@oracle.com>
Fri, 25 Oct 2013 06:52:44 +0000 (14:52 +0800)
committerBen Myers <bpm@sgi.com>
Thu, 31 Oct 2013 21:43:19 +0000 (16:43 -0500)
commitbb86d21cba22a045b09d11b71decf5ca7c3d5def
tree3de7d5b4537fc3250b01f3ad2e0639ca78167325
parent10e6e65dfcedff63275c3d649d329c044caa8e26
xfs: fix the extent count when allocating an new indirection array entry

At xfs_iext_add(), if extent(s) are being appended to the last page in
the indirection array and the new extent(s) don't fit in the page, the
number of extents(erp->er_extcount) in a new allocated entry should be
the minimum value between count and XFS_LINEAR_EXTS, instead of count.

For now, there is no existing test case can demonstrates a problem with
the er_extcount being set incorrectly here, but it obviously like a bug.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
fs/xfs/xfs_inode_fork.c