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| author |   Steve French <sfrench@us.ibm.com> | 2005-12-31 10:27:22 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-12-31 10:27:22 -0800 |
| commit | eea60caef610c7a6c58c0de9c80ae1e438e01301 (patch) | |
| tree | 25e19289bba003fe085e589430d0d981fd6b73a7 /ipc | |
| parent | Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git (diff) | |
| parent | [PATCH] Fix false old value return of sysctl (diff) | |
| download | linux-dev-eea60caef610c7a6c58c0de9c80ae1e438e01301.tar.xz linux-dev-eea60caef610c7a6c58c0de9c80ae1e438e01301.zip | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/sem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index 19af028a3e38..cb5bb2a5df96 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -381,6 +381,7 @@ static void update_queue (struct sem_array * sma) /* hands-off: q will disappear immediately after * writing q->status. */ + smp_wmb(); q->status = error; q = n; } else { @@ -461,6 +462,7 @@ static void freeary (struct sem_array *sma, int id) n = q->next; q->status = IN_WAKEUP; wake_up_process(q->sleeper); /* doesn't sleep */ + smp_wmb(); q->status = -EIDRM; /* hands-off q */ q = n; } |