[PATCH 2/4] sysfs: Reduce s_flags to an unsinged short so it packs well with s_mode
From: Eric W. Biederman
Date: Sun Dec 18 2011 - 23:05:44 EST
On 32bit this reduces sizeof(struct sysfs_dirent) by 2 bytes.
Signed-off-by: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
---
fs/sysfs/sysfs.h | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 545a8d4..e10ff98 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -77,7 +77,7 @@ struct sysfs_dirent {
struct sysfs_elem_bin_attr s_bin_attr;
};
- unsigned int s_flags;
+ unsigned short s_flags;
unsigned short s_mode;
ino_t s_ino;
struct sysfs_inode_attrs *s_iattr;
@@ -94,11 +94,11 @@ struct sysfs_dirent {
#define SYSFS_ACTIVE_REF (SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR)
/* identify any namespace tag on sysfs_dirents */
-#define SYSFS_NS_TYPE_MASK 0xff00
+#define SYSFS_NS_TYPE_MASK 0xf00
#define SYSFS_NS_TYPE_SHIFT 8
#define SYSFS_FLAG_MASK ~(SYSFS_NS_TYPE_MASK|SYSFS_TYPE_MASK)
-#define SYSFS_FLAG_REMOVED 0x020000
+#define SYSFS_FLAG_REMOVED 0x02000
static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
{
--
1.7.2.5
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