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xfs: fixup xfs_attr_get_ilocked

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The comment mentioned the wrong lock.  Also add an ASSERT to assert
this locking precondition.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-07-13 12:14:33 -07:00 committed by Darrick J. Wong
parent cd87d86792
commit cf69f8248c
1 changed files with 3 additions and 1 deletions
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4
fs/xfs/libxfs/xfs_attr.c
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@ -114,12 +114,14 @@ xfs_inode_hasattr(
* Overall external interface routines.
*========================================================================*/
/* Retrieve an extended attribute and its value. Must have iolock. */
/* Retrieve an extended attribute and its value. Must have ilock. */
int
xfs_attr_get_ilocked(
struct xfs_inode *ip,
struct xfs_da_args *args)
{
ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED | XFS_ILOCK_EXCL));
if (!xfs_inode_hasattr(ip))
return -ENOATTR;
else if (ip->i_d.di_aformat == XFS_DINODE_FMT_LOCAL)