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| author | Hao Xu <howeyxu@tencent.com> | 2022-05-14 17:20:44 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-05-14 17:34:22 +0300 |
| commit | 227685ebfaba0bc7e2ddc47cef4556050b6d7a8f (patch) | |
| tree | 38e7f15ca0225156b8749e2c829470fc7c7a2205 /fs/io_uring.c | |
| parent | 390ed29b5e425ba00da2b6113b74a14949f71b02 (diff) | |
| download | linux-227685ebfaba0bc7e2ddc47cef4556050b6d7a8f.tar.xz | |
io_uring: add REQ_F_APOLL_MULTISHOT for requests
Add a flag to indicate multishot mode for fast poll. currently only
accept use it, but there may be more operations leveraging it in the
future. Also add a mask IO_APOLL_MULTI_POLLED which stands for
REQ_F_APOLL_MULTI | REQ_F_POLLED, to make the code short and cleaner.
Signed-off-by: Hao Xu <howeyxu@tencent.com>
Link: https://lore.kernel.org/r/20220514142046.58072-3-haoxu.linux@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index c4bd0faf0b27..e1e550de5956 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -116,6 +116,8 @@ #define IO_REQ_CLEAN_SLOW_FLAGS (REQ_F_REFCOUNT | REQ_F_LINK | REQ_F_HARDLINK |\ IO_REQ_CLEAN_FLAGS) +#define IO_APOLL_MULTI_POLLED (REQ_F_APOLL_MULTISHOT | REQ_F_POLLED) + #define IO_TCTX_REFS_CACHE_NR (1U << 10) struct io_uring { @@ -812,6 +814,7 @@ enum { REQ_F_SINGLE_POLL_BIT, REQ_F_DOUBLE_POLL_BIT, REQ_F_PARTIAL_IO_BIT, + REQ_F_APOLL_MULTISHOT_BIT, /* keep async read/write and isreg together and in order */ REQ_F_SUPPORT_NOWAIT_BIT, REQ_F_ISREG_BIT, @@ -876,6 +879,8 @@ enum { REQ_F_DOUBLE_POLL = BIT(REQ_F_DOUBLE_POLL_BIT), /* request has already done partial IO */ REQ_F_PARTIAL_IO = BIT(REQ_F_PARTIAL_IO_BIT), + /* fast poll multishot mode */ + REQ_F_APOLL_MULTISHOT = BIT(REQ_F_APOLL_MULTISHOT_BIT), }; struct async_poll { |