Btrfs: don't add a NULL extended attribute
Passing a null extended attribute value means to remove the attribute, but we don't have to add a new NULL extended attribute. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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@ -122,6 +122,16 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
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*/
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*/
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if (!value)
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if (!value)
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goto out;
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goto out;
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} else {
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di = btrfs_lookup_xattr(NULL, root, path, btrfs_ino(inode),
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name, name_len, 0);
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if (IS_ERR(di)) {
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ret = PTR_ERR(di);
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goto out;
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}
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if (!di && !value)
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goto out;
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btrfs_release_path(path);
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}
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}
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again:
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again:
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