diff options
| author | Alexander Aring <aahringo@redhat.com> | 2022-08-15 15:43:24 -0400 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2022-08-23 14:54:04 -0500 |
| commit | 7a3de7324c2b1299a4f595bb6aa503c878ad7d75 (patch) | |
| tree | bcdab8f6ae49a0352c1220a635a8654cb0173298 /fs/dlm/user.c | |
| parent | 296d9d1e9890830bd149105cf0193c2cf7d5bc86 (diff) | |
| download | linux-7a3de7324c2b1299a4f595bb6aa503c878ad7d75.tar.gz | |
fs: dlm: trace user space callbacks
This patch adds trace callbacks for user locks. Unfortenately user locks
are handled in a different way than kernel locks in some cases. User
locks never call the dlm_lock()/dlm_unlock() kernel API and use the next
step internal API of dlm. Adding those traces from user API callers
should make it possible for dlm trace system to see lock handling for
user locks as well.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/user.c')
| -rw-r--r-- | fs/dlm/user.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/dlm/user.c b/fs/dlm/user.c index df6215c732399..ca27f276a3f5a 100644 --- a/fs/dlm/user.c +++ b/fs/dlm/user.c @@ -16,6 +16,8 @@ #include <linux/slab.h> #include <linux/sched/signal.h> +#include <trace/events/dlm.h> + #include "dlm_internal.h" #include "lockspace.h" #include "lock.h" @@ -882,7 +884,9 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count, goto try_another; } - if (cb.flags & DLM_CB_CAST) { + if (cb.flags & DLM_CB_BAST) { + trace_dlm_bast(lkb->lkb_resource->res_ls, lkb, cb.mode); + } else if (cb.flags & DLM_CB_CAST) { new_mode = cb.mode; if (!cb.sb_status && lkb->lkb_lksb->sb_lvbptr && @@ -891,6 +895,7 @@ static ssize_t device_read(struct file *file, char __user *buf, size_t count, lkb->lkb_lksb->sb_status = cb.sb_status; lkb->lkb_lksb->sb_flags = cb.sb_flags; + trace_dlm_ast(lkb->lkb_resource->res_ls, lkb); } rv = copy_result_to_user(lkb->lkb_ua, |