diff options
author | David Teigland <teigland@redhat.com> | 2009-01-07 23:50:41 +0100 |
---|---|---|
committer | David Teigland <teigland@redhat.com> | 2009-01-08 22:12:39 +0100 |
commit | c7be761a8163d2f1ac0b606c21e4316b7abc5af7 (patch) | |
tree | 1687373b56379c1c310f43b1c05ac486c67dec48 /fs/dlm/recover.c | |
parent | dlm: fix seq_file usage in debugfs lock dump (diff) | |
download | linux-c7be761a8163d2f1ac0b606c21e4316b7abc5af7.tar.xz linux-c7be761a8163d2f1ac0b606c21e4316b7abc5af7.zip |
dlm: change rsbtbl rwlock to spinlock
The rwlock is almost always used in write mode, so there's no reason
to not use a spinlock instead.
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/recover.c')
-rw-r--r-- | fs/dlm/recover.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c index 80aba5bdd4a4..eda43f362616 100644 --- a/fs/dlm/recover.c +++ b/fs/dlm/recover.c @@ -726,7 +726,7 @@ int dlm_create_root_list(struct dlm_ls *ls) } for (i = 0; i < ls->ls_rsbtbl_size; i++) { - read_lock(&ls->ls_rsbtbl[i].lock); + spin_lock(&ls->ls_rsbtbl[i].lock); list_for_each_entry(r, &ls->ls_rsbtbl[i].list, res_hashchain) { list_add(&r->res_root_list, &ls->ls_root_list); dlm_hold_rsb(r); @@ -737,7 +737,7 @@ int dlm_create_root_list(struct dlm_ls *ls) but no other recovery steps should do anything with them. */ if (dlm_no_directory(ls)) { - read_unlock(&ls->ls_rsbtbl[i].lock); + spin_unlock(&ls->ls_rsbtbl[i].lock); continue; } @@ -745,7 +745,7 @@ int dlm_create_root_list(struct dlm_ls *ls) list_add(&r->res_root_list, &ls->ls_root_list); dlm_hold_rsb(r); } - read_unlock(&ls->ls_rsbtbl[i].lock); + spin_unlock(&ls->ls_rsbtbl[i].lock); } out: up_write(&ls->ls_root_sem); @@ -775,7 +775,7 @@ void dlm_clear_toss_list(struct dlm_ls *ls) int i; for (i = 0; i < ls->ls_rsbtbl_size; i++) { - write_lock(&ls->ls_rsbtbl[i].lock); + spin_lock(&ls->ls_rsbtbl[i].lock); list_for_each_entry_safe(r, safe, &ls->ls_rsbtbl[i].toss, res_hashchain) { if (dlm_no_directory(ls) || !is_master(r)) { @@ -783,7 +783,7 @@ void dlm_clear_toss_list(struct dlm_ls *ls) dlm_free_rsb(r); } } - write_unlock(&ls->ls_rsbtbl[i].lock); + spin_unlock(&ls->ls_rsbtbl[i].lock); } } |