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| author | Eric W. Biederman <ebiederm@xmission.com> | 2011-12-18 20:08:16 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 12:41:46 -0800 |
| commit | cafa6b5dd7ce4f0e0a30be301be4efed587a7808 (patch) | |
| tree | 47200ffb5c660280ebe734b29662c12df24d7ab5 /fs/sysfs | |
| parent | 15a3382451e51925facfe430deeca63d90137f5d (diff) | |
| download | lwn-cafa6b5dd7ce4f0e0a30be301be4efed587a7808.tar.gz lwn-cafa6b5dd7ce4f0e0a30be301be4efed587a7808.zip | |
sysfs: Store the sysfs inode in an unsigned int.
Store the sysfs inode number in an unsided int because
ida inode allocator can return at most a 31 bit number,
reducing the size of struct sysfs_dirent by 8 bytes
on 64bit platforms.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs')
| -rw-r--r-- | fs/sysfs/dir.c | 4 | ||||
| -rw-r--r-- | fs/sysfs/sysfs.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 0daf255b7bf9..0589c9a694bf 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -224,7 +224,7 @@ static void sysfs_deactivate(struct sysfs_dirent *sd) rwsem_release(&sd->dep_map, 1, _RET_IP_); } -static int sysfs_alloc_ino(ino_t *pino) +static int sysfs_alloc_ino(unsigned int *pino) { int ino, rc; @@ -243,7 +243,7 @@ static int sysfs_alloc_ino(ino_t *pino) return rc; } -static void sysfs_free_ino(ino_t ino) +static void sysfs_free_ino(unsigned int ino) { spin_lock(&sysfs_ino_lock); ida_remove(&sysfs_ino_ida, ino); diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h index 19994948ac5c..661a9639570b 100644 --- a/fs/sysfs/sysfs.h +++ b/fs/sysfs/sysfs.h @@ -79,7 +79,7 @@ struct sysfs_dirent { unsigned short s_flags; umode_t s_mode; - ino_t s_ino; + unsigned int s_ino; struct sysfs_inode_attrs *s_iattr; }; |