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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2013-03-07 15:42:52 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2013-04-04 10:52:50 +0200 |
| commit | 4146c3d469dc400eefa253fb37aa1e74fb5e41f8 (patch) | |
| tree | a9f4fbd78f9cf0a79c540fd642483018dec0583f /fs/gfs2/lock_dlm.c | |
| parent | GFS2: use kmalloc for lvb bitmap (diff) | |
| download | linux-4146c3d469dc400eefa253fb37aa1e74fb5e41f8.tar.xz linux-4146c3d469dc400eefa253fb37aa1e74fb5e41f8.zip | |
GFS2: use memchr_inv
Use memchr_inv to verify that the specified memory range is cleared.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: cluster-devel@redhat.com
Cc: Christine Caulfield <ccaulfie@redhat.com>
Cc: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/gfs2/lock_dlm.c')
| -rw-r--r-- | fs/gfs2/lock_dlm.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c index b15bb45911ca..c8423d6de6c3 100644 --- a/fs/gfs2/lock_dlm.c +++ b/fs/gfs2/lock_dlm.c @@ -483,12 +483,8 @@ static void control_lvb_write(struct lm_lockstruct *ls, uint32_t lvb_gen, static int all_jid_bits_clear(char *lvb) { - int i; - for (i = JID_BITMAP_OFFSET; i < GDLM_LVB_SIZE; i++) { - if (lvb[i]) - return 0; - } - return 1; + return !memchr_inv(lvb + JID_BITMAP_OFFSET, 0, + GDLM_LVB_SIZE - JID_BITMAP_OFFSET); } static void sync_wait_cb(void *arg) |