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io_uring: add req flag invariant build assertion

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We're caching some of file related request flags in a tricky way, put
a build check to make sure flags don't get reshuffled.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9877577b83c25dd78224a8274f799187e7ec7639.1743407551.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2025-03-31 08:54:00 +01:00 committed by Jens Axboe
parent f28a71bc97
commit 697b2876ac
1 changed files with 2 additions and 0 deletions
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io_uring/io_uring.c
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@ -1643,6 +1643,8 @@ io_req_flags_t io_file_get_flags(struct file *file)
{
io_req_flags_t res = 0;
BUILD_BUG_ON(REQ_F_ISREG_BIT != REQ_F_SUPPORT_NOWAIT_BIT + 1);
if (S_ISREG(file_inode(file)->i_mode))
res |= REQ_F_ISREG;
if ((file->f_flags & O_NONBLOCK) || (file->f_mode & FMODE_NOWAIT))