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| author | linke li <lilinke99@qq.com> | 2024-04-26 05:24:37 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-04-26 15:40:12 +0200 |
| commit | a4d416dc60980f741f0bfa1f34a1059c498c1b4e (patch) | |
| tree | 442b8419c20264d41a16b4be300c477a2c4e567e /io_uring/net.c | |
| parent | io_uring/rw: reinstate thread check for retries (diff) | |
| download | linux-a4d416dc60980f741f0bfa1f34a1059c498c1b4e.tar.xz linux-a4d416dc60980f741f0bfa1f34a1059c498c1b4e.zip | |
io_uring/msg_ring: reuse ctx->submitter_task read using READ_ONCE instead of re-reading it
In io_msg_exec_remote(), ctx->submitter_task is read using READ_ONCE at
the beginning of the function, checked, and then re-read from
ctx->submitter_task, voiding all guarantees of the checks. Reuse the value
that was read by READ_ONCE to ensure the consistency of the task struct
throughout the function.
Signed-off-by: linke li <lilinke99@qq.com>
Link: https://lore.kernel.org/r/tencent_F9B2296C93928D6F68FF0C95C33475C68209@qq.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring/net.c')
0 files changed, 0 insertions, 0 deletions