diff options
author | Steven Whitehouse <swhiteho@redhat.com> | 2008-06-04 14:06:21 (GMT) |
---|---|---|
committer | Steven Whitehouse <swhiteho@redhat.com> | 2008-06-27 08:39:50 (GMT) |
commit | 31fcba00fe7145527b159f8893ec6c9cc61309fd (patch) | |
tree | 6fef1dc1b20166b881356159d9ac8208a9335978 /fs/gfs2/locking | |
parent | b2cad26cfc2091050574a460b304ed103a35dbda (diff) | |
download | linux-fsl-qoriq-31fcba00fe7145527b159f8893ec6c9cc61309fd.tar.xz |
[GFS2] Remove all_list from lock_dlm
I discovered that we had a list onto which every lock_dlm
lock was being put. Its only function was to discover whether
we'd got any locks left after umount. Since there was already
a counter for that purpose as well, I removed the list. The
saving is sizeof(struct list_head) per glock - well worth
having.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/locking')
-rw-r--r-- | fs/gfs2/locking/dlm/lock.c | 23 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/lock_dlm.h | 2 | ||||
-rw-r--r-- | fs/gfs2/locking/dlm/mount.c | 6 |
3 files changed, 1 insertions, 30 deletions
diff --git a/fs/gfs2/locking/dlm/lock.c b/fs/gfs2/locking/dlm/lock.c index 894df45..2482c90 100644 --- a/fs/gfs2/locking/dlm/lock.c +++ b/fs/gfs2/locking/dlm/lock.c @@ -58,9 +58,6 @@ static void gdlm_delete_lp(struct gdlm_lock *lp) spin_lock(&ls->async_lock); if (!list_empty(&lp->delay_list)) list_del_init(&lp->delay_list); - gdlm_assert(!list_empty(&lp->all_list), "%x,%llx", lp->lockname.ln_type, - (unsigned long long)lp->lockname.ln_number); - list_del_init(&lp->all_list); ls->all_locks_count--; spin_unlock(&ls->async_lock); @@ -397,7 +394,6 @@ static int gdlm_create_lp(struct gdlm_ls *ls, struct lm_lockname *name, INIT_LIST_HEAD(&lp->delay_list); spin_lock(&ls->async_lock); - list_add(&lp->all_list, &ls->all_locks); ls->all_locks_count++; spin_unlock(&ls->async_lock); @@ -710,22 +706,3 @@ void gdlm_submit_delayed(struct gdlm_ls *ls) wake_up(&ls->thread_wait); } -int gdlm_release_all_locks(struct gdlm_ls *ls) -{ - struct gdlm_lock *lp, *safe; - int count = 0; - - spin_lock(&ls->async_lock); - list_for_each_entry_safe(lp, safe, &ls->all_locks, all_list) { - list_del_init(&lp->all_list); - - if (lp->lvb && lp->lvb != junk_lvb) - kfree(lp->lvb); - kfree(lp); - count++; - } - spin_unlock(&ls->async_lock); - - return count; -} - diff --git a/fs/gfs2/locking/dlm/lock_dlm.h b/fs/gfs2/locking/dlm/lock_dlm.h index 845a27f..21cf466 100644 --- a/fs/gfs2/locking/dlm/lock_dlm.h +++ b/fs/gfs2/locking/dlm/lock_dlm.h @@ -74,7 +74,6 @@ struct gdlm_ls { spinlock_t async_lock; struct list_head delayed; struct list_head submit; - struct list_head all_locks; u32 all_locks_count; wait_queue_head_t wait_control; struct task_struct *thread; @@ -112,7 +111,6 @@ struct gdlm_lock { unsigned long flags; /* lock_dlm flags LFL_ */ struct list_head delay_list; /* delayed */ - struct list_head all_list; /* all locks for the fs */ struct gdlm_lock *hold_null; /* NL lock for hold_lvb */ }; diff --git a/fs/gfs2/locking/dlm/mount.c b/fs/gfs2/locking/dlm/mount.c index fa31c54..947e706 100644 --- a/fs/gfs2/locking/dlm/mount.c +++ b/fs/gfs2/locking/dlm/mount.c @@ -28,7 +28,6 @@ static struct gdlm_ls *init_gdlm(lm_callback_t cb, struct gfs2_sbd *sdp, spin_lock_init(&ls->async_lock); INIT_LIST_HEAD(&ls->delayed); INIT_LIST_HEAD(&ls->submit); - INIT_LIST_HEAD(&ls->all_locks); init_waitqueue_head(&ls->thread_wait); init_waitqueue_head(&ls->wait_control); ls->jid = -1; @@ -173,7 +172,6 @@ out: static void gdlm_unmount(void *lockspace) { struct gdlm_ls *ls = lockspace; - int rv; log_debug("unmount flags %lx", ls->flags); @@ -187,9 +185,7 @@ static void gdlm_unmount(void *lockspace) gdlm_kobject_release(ls); dlm_release_lockspace(ls->dlm_lockspace, 2); gdlm_release_threads(ls); - rv = gdlm_release_all_locks(ls); - if (rv) - log_info("gdlm_unmount: %d stray locks freed", rv); + BUG_ON(ls->all_locks_count); out: kfree(ls); } |