diff options
Diffstat (limited to 'fs/dlm')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 3 | ||||
| -rw-r--r-- | fs/dlm/lock.c | 15 | ||||
| -rw-r--r-- | fs/dlm/user.c | 8 |
3 files changed, 22 insertions, 4 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 77c0f70f8fe8..e7665c31f7b1 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -96,10 +96,13 @@ do { \ } +#define DLM_RTF_SHRINK 0x00000001 + struct dlm_rsbtable { struct rb_root keep; struct rb_root toss; spinlock_t lock; + uint32_t flags; }; diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index a579f30f237d..f7501651762d 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -1132,6 +1132,7 @@ static void toss_rsb(struct kref *kref) rb_erase(&r->res_hashnode, &ls->ls_rsbtbl[r->res_bucket].keep); rsb_insert(r, &ls->ls_rsbtbl[r->res_bucket].toss); r->res_toss_time = jiffies; + ls->ls_rsbtbl[r->res_bucket].flags |= DLM_RTF_SHRINK; if (r->res_lvbptr) { dlm_free_lvb(r->res_lvbptr); r->res_lvbptr = NULL; @@ -1659,11 +1660,18 @@ static void shrink_bucket(struct dlm_ls *ls, int b) char *name; int our_nodeid = dlm_our_nodeid(); int remote_count = 0; + int need_shrink = 0; int i, len, rv; memset(&ls->ls_remove_lens, 0, sizeof(int) * DLM_REMOVE_NAMES_MAX); spin_lock(&ls->ls_rsbtbl[b].lock); + + if (!(ls->ls_rsbtbl[b].flags & DLM_RTF_SHRINK)) { + spin_unlock(&ls->ls_rsbtbl[b].lock); + return; + } + for (n = rb_first(&ls->ls_rsbtbl[b].toss); n; n = next) { next = rb_next(n); r = rb_entry(n, struct dlm_rsb, res_hashnode); @@ -1679,6 +1687,8 @@ static void shrink_bucket(struct dlm_ls *ls, int b) continue; } + need_shrink = 1; + if (!time_after_eq(jiffies, r->res_toss_time + dlm_config.ci_toss_secs * HZ)) { continue; @@ -1710,6 +1720,11 @@ static void shrink_bucket(struct dlm_ls *ls, int b) rb_erase(&r->res_hashnode, &ls->ls_rsbtbl[b].toss); dlm_free_rsb(r); } + + if (need_shrink) + ls->ls_rsbtbl[b].flags |= DLM_RTF_SHRINK; + else + ls->ls_rsbtbl[b].flags &= ~DLM_RTF_SHRINK; spin_unlock(&ls->ls_rsbtbl[b].lock); /* diff --git a/fs/dlm/user.c b/fs/dlm/user.c index 7ff49852b0cb..911649a47dd5 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -503,11 +503,11 @@ static ssize_t device_write(struct file *file, const char __user *buf, #endif return -EINVAL; -#ifdef CONFIG_COMPAT - if (count > sizeof(struct dlm_write_request32) + DLM_RESNAME_MAXLEN) -#else + /* + * can't compare against COMPAT/dlm_write_request32 because + * we don't yet know if is64bit is zero + */ if (count > sizeof(struct dlm_write_request) + DLM_RESNAME_MAXLEN) -#endif return -EINVAL; kbuf = kzalloc(count + 1, GFP_NOFS); |