diff options
| author | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-08-10 11:15:13 -0500 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2005-08-10 11:15:13 -0500 |
| commit | 2d610b80e954045ccfc27558f84e482709e5e5b7 (patch) | |
| tree | 840b3bb52adba07b6f1e4ddf2beb5ad5df480486 /ipc/sem.c | |
| parent | 8a9cd6d676728792aaee31f30015d284acd154a3 (diff) | |
| parent | 86b3786078d63242d3194ffc58ae8dae1d1bbef3 (diff) | |
Merge with /home/shaggy/git/linus-clean/
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Diffstat (limited to 'ipc/sem.c')
| -rw-r--r-- | ipc/sem.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 7e8a25c82ef3..70975ce0784a 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -895,7 +895,7 @@ static inline void lock_semundo(void) struct sem_undo_list *undo_list; undo_list = current->sysvsem.undo_list; - if ((undo_list != NULL) && (atomic_read(&undo_list->refcnt) != 1)) + if (undo_list) spin_lock(&undo_list->lock); } @@ -915,7 +915,7 @@ static inline void unlock_semundo(void) struct sem_undo_list *undo_list; undo_list = current->sysvsem.undo_list; - if ((undo_list != NULL) && (atomic_read(&undo_list->refcnt) != 1)) + if (undo_list) spin_unlock(&undo_list->lock); } @@ -943,9 +943,7 @@ static inline int get_undo_list(struct sem_undo_list **undo_listp) if (undo_list == NULL) return -ENOMEM; memset(undo_list, 0, size); - /* don't initialize unodhd->lock here. It's done - * in copy_semundo() instead. - */ + spin_lock_init(&undo_list->lock); atomic_set(&undo_list->refcnt, 1); current->sysvsem.undo_list = undo_list; } @@ -1231,8 +1229,6 @@ int copy_semundo(unsigned long clone_flags, struct task_struct *tsk) error = get_undo_list(&undo_list); if (error) return error; - if (atomic_read(&undo_list->refcnt) == 1) - spin_lock_init(&undo_list->lock); atomic_inc(&undo_list->refcnt); tsk->sysvsem.undo_list = undo_list; } else |