[PATCH 2/10] tmpfs: enable NOSEC optimization

[Hugh Dickins]

Let tmpfs into the NOSEC optimization (avoiding file_remove_suid()
overhead on most common writes): set MS_NOSEC on its superblocks.

Signed-off-by: Hugh Dickins <hughd@xxxxxxxxxx>
---
 mm/shmem.c |    1 +
 1 file changed, 1 insertion(+)

--- 3045N.orig/mm/shmem.c	2012-05-05 10:45:17.888060878 -0700
+++ 3045N/mm/shmem.c	2012-05-05 10:46:05.732062006 -0700
@@ -2361,6 +2361,7 @@ int shmem_fill_super(struct super_block
 		}
 	}
 	sb->s_export_op = &shmem_export_ops;
+	sb->s_flags |= MS_NOSEC;
 #else
 	sb->s_flags |= MS_NOUSER;
 #endif
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/