path: root/fs/io-wq.h
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authorJens Axboe <>2020-09-13 13:09:39 -0600
committerJens Axboe <>2020-09-30 20:32:32 -0600
commit0f2122045b946241a9e549c2a76cea54fa58a7ff (patch)
tree76cea5c487f38bff85e18933a8477b47d5514e05 /fs/io-wq.h
parente6c8aa9ac33bd7c968af7816240fc081401fddcd (diff)
io_uring: don't rely on weak ->files references
Grab actual references to the files_struct. To avoid circular references issues due to this, we add a per-task note that keeps track of what io_uring contexts a task has used. When the tasks execs or exits its assigned files, we cancel requests based on this tracking. With that, we can grab proper references to the files table, and no longer need to rely on stashing away ring_fd and ring_file to check if the ring_fd may have been closed. Cc: # v5.5+ Reviewed-by: Pavel Begunkov <> Signed-off-by: Jens Axboe <>
Diffstat (limited to 'fs/io-wq.h')
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