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authorJens Axboe <axboe@kernel.dk>2019-11-12 07:56:39 -0700
committerJens Axboe <axboe@kernel.dk>2019-11-12 08:02:26 -0700
commit960e432dfa5927892a9b170d14de874597b84849 (patch)
tree5f349118f3b4de3fcc35836f392f8ffbec440cca /fs/io-wq.h
parent76a46e066e2d93bd333599d1c84c605c2c4cc909 (diff)
downloadlinux-sh-960e432dfa5927892a9b170d14de874597b84849.tar.gz
io_uring: use correct "is IO worker" helper
Since we switched to io-wq, the dependent link optimization for when to pass back work inline has been broken. Fix this by providing a suitable io-wq helper for io_uring to use to detect when to do this. Fixes: 561fb04a6a22 ("io_uring: replace workqueue usage with io-wq") Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io-wq.h')
-rw-r--r--fs/io-wq.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/io-wq.h b/fs/io-wq.h
index 8cb345256f35..cc50754d028c 100644
--- a/fs/io-wq.h
+++ b/fs/io-wq.h
@@ -62,4 +62,8 @@ static inline void io_wq_worker_running(struct task_struct *tsk)
}
#endif
+static inline bool io_wq_current_is_worker(void)
+{
+ return in_task() && (current->flags & PF_IO_WORKER);
+}
#endif