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xfs: remove ATTR_ALLOC and XFS_DA_OP_ALLOCVAL

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Use a NULL args->value as the indicator to lazily allocate a buffer
instead, and let the caller always free args->value instead of
duplicating the cleanup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.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 17:30:35 -08:00
committed by Darrick J. Wong
parent e513e25c38
commit d49db18b24
5 changed files with 18 additions and 33 deletions
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2
fs/xfs/libxfs/xfs_attr_leaf.c
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@@ -477,7 +477,7 @@ xfs_attr_copy_value(
return -ERANGE;
}
if (args->op_flags & XFS_DA_OP_ALLOCVAL) {
if (!args->value) {
args->value = kmem_alloc_large(valuelen, 0);
if (!args->value)
return -ENOMEM;