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![]() Only the current owner of a request is allowed to write into req->flags.
Hence, the cancellation path should never touch it. Add a new field
instead of the flag, move it into the 3rd cache line because it should
always be initialised. poll_refs can move further as polling is an
involved process anyway.
It's a minimal patch, in the future we can and should find a better
place for it and remove now unused REQ_F_CANCEL_SEQ.
Fixes:
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.. | ||
advise.c | ||
advise.h | ||
alloc_cache.h | ||
cancel.c | ||
cancel.h | ||
epoll.c | ||
epoll.h | ||
fdinfo.c | ||
fdinfo.h | ||
filetable.c | ||
filetable.h | ||
fs.c | ||
fs.h | ||
futex.c | ||
futex.h | ||
io-wq.c | ||
io-wq.h | ||
io_uring.c | ||
io_uring.h | ||
kbuf.c | ||
kbuf.h | ||
Makefile | ||
memmap.c | ||
memmap.h | ||
msg_ring.c | ||
msg_ring.h | ||
napi.c | ||
napi.h | ||
net.c | ||
net.h | ||
nop.c | ||
nop.h | ||
notif.c | ||
notif.h | ||
opdef.c | ||
opdef.h | ||
openclose.c | ||
openclose.h | ||
poll.c | ||
poll.h | ||
refs.h | ||
register.c | ||
register.h | ||
rsrc.c | ||
rsrc.h | ||
rw.c | ||
rw.h | ||
slist.h | ||
splice.c | ||
splice.h | ||
sqpoll.c | ||
sqpoll.h | ||
statx.c | ||
statx.h | ||
sync.c | ||
sync.h | ||
tctx.c | ||
tctx.h | ||
timeout.c | ||
timeout.h | ||
truncate.c | ||
truncate.h | ||
uring_cmd.c | ||
uring_cmd.h | ||
waitid.c | ||
waitid.h | ||
xattr.c | ||
xattr.h |