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| author | Jens Axboe <axboe@kernel.dk> | 2019-12-11 19:29:43 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-01-20 17:01:53 -0700 |
| commit | 0c9d5ccd26a004f59333c06fbbb98f9cb1eed93d (patch) | |
| tree | 44cdf8ba1137666d0194c3fbe2d995d2138fa456 /fs/io-wq.h | |
| parent | 6e802a4ba056a6f2f51ac9d54eead3ed6f9829a2 (diff) | |
| download | linux-0c9d5ccd26a004f59333c06fbbb98f9cb1eed93d.tar.bz2 | |
io-wq: add support for uncancellable work
Not all work can be cancelled, some of it we may need to guarantee
that it runs to completion. Allow the caller to set IO_WQ_WORK_NO_CANCEL
on work that must not be cancelled. Note that the caller work function
must also check for IO_WQ_WORK_NO_CANCEL on work that is marked
IO_WQ_WORK_CANCEL.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io-wq.h')
| -rw-r--r-- | fs/io-wq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/io-wq.h b/fs/io-wq.h index 3f5e356de980..04d60ad38dfc 100644 --- a/fs/io-wq.h +++ b/fs/io-wq.h @@ -12,6 +12,7 @@ enum { IO_WQ_WORK_UNBOUND = 32, IO_WQ_WORK_INTERNAL = 64, IO_WQ_WORK_CB = 128, + IO_WQ_WORK_NO_CANCEL = 256, IO_WQ_HASH_SHIFT = 24, /* upper 8 bits are used for hash key */ }; |