diff options
Diffstat (limited to 'fs/dlm')
| -rw-r--r-- | fs/dlm/config.c | 1 | ||||
| -rw-r--r-- | fs/dlm/dlm_internal.h | 2 | ||||
| -rw-r--r-- | fs/dlm/lock.c | 13 | ||||
| -rw-r--r-- | fs/dlm/netlink.c | 2 | ||||
| -rw-r--r-- | fs/dlm/user.c | 49 |
5 files changed, 39 insertions, 28 deletions
diff --git a/fs/dlm/config.c b/fs/dlm/config.c index 2909abf..1b59fa5 100644 --- a/fs/dlm/config.c +++ b/fs/dlm/config.c @@ -433,6 +433,7 @@ static struct config_group *make_cluster(struct config_group *g, cl->cl_toss_secs = dlm_config.ci_toss_secs; cl->cl_scan_secs = dlm_config.ci_scan_secs; cl->cl_log_debug = dlm_config.ci_log_debug; + cl->cl_timewarn_cs = dlm_config.ci_timewarn_cs; space_list = &sps->ss_group; comm_list = &cms->cs_group; diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 03ba6c4..a7435a8 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -215,9 +215,9 @@ struct dlm_args { #define DLM_IFL_OVERLAP_CANCEL 0x00100000 #define DLM_IFL_ENDOFLIFE 0x00200000 #define DLM_IFL_WATCH_TIMEWARN 0x00400000 +#define DLM_IFL_TIMEOUT_CANCEL 0x00800000 #define DLM_IFL_USER 0x00000001 #define DLM_IFL_ORPHAN 0x00000002 -#define DLM_IFL_TIMEOUT_CANCEL 0x00000004 struct dlm_lkb { struct dlm_rsb *lkb_resource; /* the rsb */ diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c index 2f8a5a7..df91578 100644 --- a/fs/dlm/lock.c +++ b/fs/dlm/lock.c @@ -1010,17 +1010,18 @@ static void add_timeout(struct dlm_lkb *lkb) { struct dlm_ls *ls = lkb->lkb_resource->res_ls; - if (is_master_copy(lkb)) + if (is_master_copy(lkb)) { + lkb->lkb_timestamp = jiffies; return; - - if (lkb->lkb_exflags & DLM_LKF_TIMEOUT) - goto add_it; + } if (test_bit(LSFL_TIMEWARN, &ls->ls_flags) && !(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) { lkb->lkb_flags |= DLM_IFL_WATCH_TIMEWARN; goto add_it; } + if (lkb->lkb_exflags & DLM_LKF_TIMEOUT) + goto add_it; return; add_it: @@ -3510,8 +3511,7 @@ static void _receive_cancel_reply(struct dlm_lkb *lkb, struct dlm_message *ms) case -DLM_ECANCEL: receive_flags_reply(lkb, ms); revert_lock_pc(r, lkb); - if (ms->m_result) - queue_cast(r, lkb, -DLM_ECANCEL); + queue_cast(r, lkb, -DLM_ECANCEL); break; case 0: break; @@ -4534,6 +4534,7 @@ void dlm_clear_proc_locks(struct dlm_ls *ls, struct dlm_user_proc *proc) lkb = del_proc_lock(ls, proc); if (!lkb) break; + del_timeout(lkb); if (lkb->lkb_exflags & DLM_LKF_PERSISTENT) orphan_proc_lock(ls, lkb); else diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c index 804b32c..863b87d 100644 --- a/fs/dlm/netlink.c +++ b/fs/dlm/netlink.c @@ -133,8 +133,6 @@ void dlm_timeout_warn(struct dlm_lkb *lkb) size_t size; int rv; - log_debug(lkb->lkb_resource->res_ls, "timeout_warn %x", lkb->lkb_id); - size = nla_total_size(sizeof(struct dlm_lock_data)) + nla_total_size(0); /* why this? */ diff --git a/fs/dlm/user.c b/fs/dlm/user.c index 37aad3f..329da1b 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -138,6 +138,35 @@ static void compat_output(struct dlm_lock_result *res, } #endif +/* Figure out if this lock is at the end of its life and no longer + available for the application to use. The lkb still exists until + the final ast is read. A lock becomes EOL in three situations: + 1. a noqueue request fails with EAGAIN + 2. an unlock completes with EUNLOCK + 3. a cancel of a waiting request completes with ECANCEL/EDEADLK + An EOL lock needs to be removed from the process's list of locks. + And we can't allow any new operation on an EOL lock. This is + not related to the lifetime of the lkb struct which is managed + entirely by refcount. */ + +static int lkb_is_endoflife(struct dlm_lkb *lkb, int sb_status, int type) +{ + switch (sb_status) { + case -DLM_EUNLOCK: + return 1; + case -DLM_ECANCEL: + case -ETIMEDOUT: + if (lkb->lkb_grmode == DLM_LOCK_IV) + return 1; + break; + case -EAGAIN: + if (type == AST_COMP && lkb->lkb_grmode == DLM_LOCK_IV) + return 1; + break; + } + return 0; +} + /* we could possibly check if the cancel of an orphan has resulted in the lkb being removed and then remove that lkb from the orphans list and free it */ @@ -184,25 +213,7 @@ void dlm_user_add_ast(struct dlm_lkb *lkb, int type) log_debug(ls, "ast overlap %x status %x %x", lkb->lkb_id, ua->lksb.sb_status, lkb->lkb_flags); - /* Figure out if this lock is at the end of its life and no longer - available for the application to use. The lkb still exists until - the final ast is read. A lock becomes EOL in three situations: - 1. a noqueue request fails with EAGAIN - 2. an unlock completes with EUNLOCK - 3. a cancel of a waiting request completes with ECANCEL - An EOL lock needs to be removed from the process's list of locks. - And we can't allow any new operation on an EOL lock. This is - not related to the lifetime of the lkb struct which is managed - entirely by refcount. */ - - if (type == AST_COMP && - lkb->lkb_grmode == DLM_LOCK_IV && - ua->lksb.sb_status == -EAGAIN) - eol = 1; - else if (ua->lksb.sb_status == -DLM_EUNLOCK || - (ua->lksb.sb_status == -DLM_ECANCEL && - lkb->lkb_grmode == DLM_LOCK_IV)) - eol = 1; + eol = lkb_is_endoflife(lkb, ua->lksb.sb_status, type); if (eol) { lkb->lkb_ast_type &= ~AST_BAST; lkb->lkb_flags |= DLM_IFL_ENDOFLIFE; |
