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| author | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-04 13:29:19 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2020-03-04 13:29:19 +0000 |
| commit | d46eec8e975a8180e178e01ba505801c44bc9a6c (patch) | |
| tree | bff067e554fc03c576e107297085d30c8e381370 /ipc/sem.c | |
| parent | perf/x86: Add Intel Tiger Lake uncore support (diff) | |
| parent | perf diff: Fix undefined string comparison spotted by clang's -Wstring-compare (diff) | |
| download | kernel-d46eec8e975a8180e178e01ba505801c44bc9a6c.tar.gz kernel-d46eec8e975a8180e178e01ba505801c44bc9a6c.zip | |
Merge remote-tracking branch 'acme/perf/urgent' into perf/core
To pick up fixes.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'ipc/sem.c')
| -rw-r--r-- | ipc/sem.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 4f4303f32077..3687b71151b3 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -2384,11 +2384,9 @@ void exit_sem(struct task_struct *tsk) ipc_assert_locked_object(&sma->sem_perm); list_del(&un->list_id); - /* we are the last process using this ulp, acquiring ulp->lock - * isn't required. Besides that, we are also protected against - * IPC_RMID as we hold sma->sem_perm lock now - */ + spin_lock(&ulp->lock); list_del_rcu(&un->list_proc); + spin_unlock(&ulp->lock); /* perform adjustments registered in un */ for (i = 0; i < sma->sem_nsems; i++) { |