From: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Set the S_NOSEC flag early if the inode has no xattrs for XFS.
This avoids a single xattr lookup for the first write on every
file, if the file has no xattrs.
Cc: dchinner@xxxxxxxxxx
Cc: aelder@xxxxxxx
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
fs/xfs/linux-2.6/xfs_iops.c | 3 +++
fs/xfs/xfs_attr.c | 2 +-
fs/xfs/xfs_attr.h | 1 +
3 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index dd21784..4ed1e4c 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -763,6 +763,9 @@ xfs_setup_inode(
break;
}
+ if (!is_sgid(inode->i_mode) && !xfs_inode_hasattr(ip))
+ inode->i_flags |= S_NOSEC;
+
xfs_iflags_clear(ip, XFS_INEW);
barrier();
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index c863753..43140db 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -99,7 +99,7 @@ xfs_attr_name_to_xname(
return 0;
}
-STATIC int
+int
xfs_inode_hasattr(
struct xfs_inode *ip)
{
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
index e920d68..20f4038 100644
--- a/fs/xfs/xfs_attr.h
+++ b/fs/xfs/xfs_attr.h
@@ -142,5 +142,6 @@ typedef struct xfs_attr_list_context {
int xfs_attr_inactive(struct xfs_inode *dp);
int xfs_attr_rmtval_get(struct xfs_da_args *args);
int xfs_attr_list_int(struct xfs_attr_list_context *);
+int xfs_inode_hasattr(struct xfs_inode *ip);
#endif /* __XFS_ATTR_H__ */
--
1.7.4.4
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
