btrfs: optmize listxattr

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The ->list handler is really not useful at all, because we always call
btrfs_xattr_generic_list anyway.  After this is done
find_btrfs_xattr_handler becomes unused, and it becomes obvious that the
temporary name buffer allocation isn't needed but we can directly copy
into the supplied buffer.

Tested with various getfattr -d calls on varying xattr lists.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

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This commit is contained in:

Christoph Hellwig 2008-08-28 06:21:16 -04:00 • committed by Chris Mason

parent eab922ec89

commit eaa47d8612

3 changed files with 11 additions and 81 deletions

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2

fs/btrfs/acl.c

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82

fs/btrfs/xattr.c

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8

fs/btrfs/xattr.h

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