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xfs: switch xfs_attrmulti_attr_get to lazy attr buffer allocation

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Let the low-level attr code only allocate the needed buffer size
for xfs_attrmulti_attr_get instead of allocating the upper bound
at the top of the call chain.

Suggested-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
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 2020-02-26 17:30:45 -08:00 committed by Darrick J. Wong
parent ed02d13f5d
commit 5680c39073
1 changed files with 0 additions and 4 deletions

4
fs/xfs/xfs_ioctl.c
View File

@ -481,10 +481,6 @@ xfs_attrmulti_attr_get(
if (*len > XFS_XATTR_SIZE_MAX)
return -EINVAL;
args.value = kmem_zalloc_large(*len, 0);
if (!args.value)
return -ENOMEM;
error = xfs_attr_get(&args);
if (error)
goto out_kfree;