diff options
| author |   Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com> | 2021-09-14 22:38:52 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-09-14 08:47:00 -0600 |
| commit | 44df58d441a94de40d52fca67dc60790daee4266 (patch) | |
| tree | 662056341938d161f51576009d690b3511553610 /fs | |
| parent | io_uring: pin SQPOLL data before unlocking ring lock (diff) | |
| download | linux-dev-44df58d441a94de40d52fca67dc60790daee4266.tar.xz linux-dev-44df58d441a94de40d52fca67dc60790daee4266.zip | |
io_uring: fix missing sigmask restore in io_cqring_wait()
Move get_timespec() section in io_cqring_wait() before the sigmask
saving, otherwise we'll fail to restore sigmask once get_timespec()
returns error.
Fixes: c73ebb685fb6 ("io_uring: add timeout support for io_uring_enter()")
Signed-off-by: Xiaoguang Wang <xiaoguang.wang@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210914143852.9663-1-xiaoguang.wang@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/io_uring.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index a864a94364c6..94afd087e97b 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -7518,6 +7518,14 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, break; } while (1); + if (uts) { + struct timespec64 ts; + + if (get_timespec64(&ts, uts)) + return -EFAULT; + timeout = timespec64_to_jiffies(&ts); + } + if (sig) { #ifdef CONFIG_COMPAT if (in_compat_syscall()) @@ -7531,14 +7539,6 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, return ret; } - if (uts) { - struct timespec64 ts; - - if (get_timespec64(&ts, uts)) - return -EFAULT; - timeout = timespec64_to_jiffies(&ts); - } - init_waitqueue_func_entry(&iowq.wq, io_wake_function); iowq.wq.private = current; INIT_LIST_HEAD(&iowq.wq.entry); |