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author | Josef Bacik <josef@redhat.com> | 2011-05-27 16:06:11 (GMT) |
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committer | Josef Bacik <josef@redhat.com> | 2011-07-11 13:58:45 (GMT) |
commit | fa09200b8334f9a6af3f656edae924a98d85630f (patch) | |
tree | 9213ac48212f70d86fb60834beb464d68be332ba /fs/btrfs/dir-item.c | |
parent | 149e2d76b4886c4c7ff5e077646a8ba3563c8026 (diff) | |
download | linux-fsl-qoriq-fa09200b8334f9a6af3f656edae924a98d85630f.tar.xz |
Btrfs: try to only do one btrfs_search_slot in do_setxattr
I've been watching how many btrfs_search_slot()'s we do and I noticed that when
we create a file with selinux enabled we were doing 2 each time we initialize
the security context. That's because we lookup the xattr first so we can delete
it if we're setting a new value to an existing xattr. But in the create case we
don't have any xattrs, so it is completely useless to have the extra lookup. So
re-arrange things so that we only lookup first if we specifically have
XATTR_REPLACE. That way in the basic case we only do 1 search, and in the more
complicated case we do the normal 2 lookups. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/btrfs/dir-item.c')
-rw-r--r-- | fs/btrfs/dir-item.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index 685f259..c360a84 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -89,13 +89,8 @@ int btrfs_insert_xattr_item(struct btrfs_trans_handle *trans, data_size = sizeof(*dir_item) + name_len + data_len; dir_item = insert_with_overflow(trans, root, path, &key, data_size, name, name_len); - /* - * FIXME: at some point we should handle xattr's that are larger than - * what we can fit in our leaf. We set location to NULL b/c we arent - * pointing at anything else, that will change if we store the xattr - * data in a separate inode. - */ - BUG_ON(IS_ERR(dir_item)); + if (IS_ERR(dir_item)) + return PTR_ERR(dir_item); memset(&location, 0, sizeof(location)); leaf = path->nodes[0]; |