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(parent: 98447d6) | 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)
commit1e6fa5216a0e59ef02e8b6b40d553238a3b81d49
tree60bdfd7b21e283373c64f1dbb21db2607b617a24tree | snapshot
parent98447d65b4a7a59f8ea37dc6e5d743247d9a7b01commit | 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
Domain: System / Kernel;