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(parent: 667f001) | patch
io_uring: COW io_identity on mismatch
authorJens Axboe <axboe@kernel.dk>
Thu, 15 Oct 2020 14:46:24 +0000 (08:46 -0600)
committerJens Axboe <axboe@kernel.dk>
Sat, 17 Oct 2020 15:25:46 +0000 (09:25 -0600)
commite4cef3e32c714ac60e025fd96275c7b830d6d75c
tree60bdfd7b21e283373c64f1dbb21db2607b617a24tree | snapshot
parent667f001bdcae37e787660d250343a6d1d623863ccommit | diff
io_uring: COW io_identity on mismatch

If the io_identity doesn't completely match the task, then create a
copy of it and use that. The existing copy remains valid until the last
user of it has gone away.

This also changes the personality lookup to be indexed by io_identity,
instead of creds directly.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | history
include/linux/io_uring.h diff | blob | history
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