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| author | Alexander Aring <aahringo@redhat.com> | 2024-04-02 15:18:09 -0400 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2024-04-09 11:45:23 -0500 |
| commit | 578acf9a87a87531df5b59b3799ccc1256a4bbcc (patch) | |
| tree | 9354ed57d97ee78616e338e5f566ce5fe4a9a0b7 /fs/dlm/ast.c | |
| parent | 308533b4b1d55892d939286313fb73c1527444ce (diff) | |
| download | linux-578acf9a87a87531df5b59b3799ccc1256a4bbcc.tar.gz linux-578acf9a87a87531df5b59b3799ccc1256a4bbcc.tar.bz2 linux-578acf9a87a87531df5b59b3799ccc1256a4bbcc.zip | |
dlm: use spin_lock_bh for message processing
Use spin_lock_bh for all spinlocks involved in message processing,
in preparation for softirq message processing. DLM lock requests
from user space involve dlm processing in user context, in addition
to the standard kernel context, necessitating bh variants.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/ast.c')
| -rw-r--r-- | fs/dlm/ast.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/dlm/ast.c b/fs/dlm/ast.c index 03879c94fadb..59711486d801 100644 --- a/fs/dlm/ast.c +++ b/fs/dlm/ast.c @@ -142,12 +142,12 @@ void dlm_add_cb(struct dlm_lkb *lkb, uint32_t flags, int mode, int status, cb->astparam = lkb->lkb_astparam; INIT_WORK(&cb->work, dlm_callback_work); - spin_lock(&ls->ls_cb_lock); + spin_lock_bh(&ls->ls_cb_lock); if (test_bit(LSFL_CB_DELAY, &ls->ls_flags)) list_add(&cb->list, &ls->ls_cb_delay); else queue_work(ls->ls_callback_wq, &cb->work); - spin_unlock(&ls->ls_cb_lock); + spin_unlock_bh(&ls->ls_cb_lock); break; case DLM_ENQUEUE_CALLBACK_SUCCESS: break; @@ -179,9 +179,9 @@ void dlm_callback_stop(struct dlm_ls *ls) void dlm_callback_suspend(struct dlm_ls *ls) { if (ls->ls_callback_wq) { - spin_lock(&ls->ls_cb_lock); + spin_lock_bh(&ls->ls_cb_lock); set_bit(LSFL_CB_DELAY, &ls->ls_flags); - spin_unlock(&ls->ls_cb_lock); + spin_unlock_bh(&ls->ls_cb_lock); flush_workqueue(ls->ls_callback_wq); } @@ -199,7 +199,7 @@ void dlm_callback_resume(struct dlm_ls *ls) return; more: - spin_lock(&ls->ls_cb_lock); + spin_lock_bh(&ls->ls_cb_lock); list_for_each_entry_safe(cb, safe, &ls->ls_cb_delay, list) { list_del(&cb->list); queue_work(ls->ls_callback_wq, &cb->work); @@ -210,7 +210,7 @@ more: empty = list_empty(&ls->ls_cb_delay); if (empty) clear_bit(LSFL_CB_DELAY, &ls->ls_flags); - spin_unlock(&ls->ls_cb_lock); + spin_unlock_bh(&ls->ls_cb_lock); sum += count; if (!empty) { |