Kernel/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2025-01-04 04:06:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

io_uring-6.3-2023-03-30

Browse Source 
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmQmRYAQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpl0vEACPcohqWcbGvxMuOwhrX5yUeRMIk/rBUOY3
 /wmToHo9N7dHZJVyOYzGXcmTvedxXB53ea0iX/SYtTSU98Ku49UnCYDaypyo6Lag
 Qi7jRYsAVRMQBg893cSNwqNpq8IMM8Lu7GDh1W8z3MYmWmyixouNAlsLcrn8r5Yd
 3zBXuk+o5wS9Rz8RHyl3PeqiOACYB8aEYebvdjqcQS8pHokkXc9uQsNh+YFXdoB6
 vg8KeBgASEGNtnjU5bA5iB8E2vcyx1j1qeFFdyIjcRs2mKAjs9qCOENZ35XKXY3i
 J6FiWPg7uq5mk6XBjQ2P9vmeetRgcQgCHmEhaBd/H9VTDAOwK4KnlCQXIbxXdjkC
 6+fIv+msldLLE/i5lF5UnmrffurcvLRS479hpZeC5UFnhVwD0v+gUcm9Y2eWEOqD
 0Vp+YgkHowdo8ZsWXOWrv8maxo3mLyHGP1juXnTbw184hcLRyyiMN8cc2o4BJ1X/
 e60tkIbVhjxNoG8Boifs0Ep6UhGc+2muEv+BnWmtf3wDSsWkye2dsyXuQEWUK+yI
 8PGRPsttG+5X7UWtI/1AV9YV/NaRDpR8LIUPG2nKRkO1QwNUW2+DE098wW2GsCZs
 KA6KrozxiLc4H36ll7JLQjNFFzDy6sjLtDoQV6XA6eFA5bmYxhzI73OC7npLRKgO
 Jnc9Rvh7Zw==
 =5IP9
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a regression with the poll retry, introduced in this merge window
   (me)

 - Fix a regression with the alloc cache not decrementing the member
   count on removal. Also a regression from this merge window (Pavel)

 - Fix race around rsrc node grabbing (Pavel)

* tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux:
  io_uring: fix poll/netmsg alloc caches
  io_uring/rsrc: fix rogue rsrc node grabbing
  io_uring/poll: clear single/double poll flags on poll arming
This commit is contained in:
Linus Torvalds 2023-03-31 12:30:13 -07:00
commit f3fa7f026e
3 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
io_uring/alloc_cache.h
View File

@ -27,6 +27,7 @@ static inline struct io_cache_entry *io_alloc_cache_get(struct io_alloc_cache *c
struct hlist_node *node = cache->list.first;
hlist_del(node);
cache->nr_cached--;
return container_of(node, struct io_cache_entry, node);
}

1
io_uring/poll.c
View File

@ -726,6 +726,7 @@ int io_arm_poll_handler(struct io_kiocb *req, unsigned issue_flags)
apoll = io_req_alloc_apoll(req, issue_flags);
if (!apoll)
return IO_APOLL_ABORTED;
req->flags &= ~(REQ_F_SINGLE_POLL | REQ_F_DOUBLE_POLL);
req->flags |= REQ_F_POLLED;
ipt.pt._qproc = io_async_queue_proc;

14
io_uring/rsrc.h
View File

@ -144,15 +144,13 @@ static inline void io_req_set_rsrc_node(struct io_kiocb *req,
unsigned int issue_flags)
{
if (!req->rsrc_node) {
io_ring_submit_lock(ctx, issue_flags);
lockdep_assert_held(&ctx->uring_lock);
req->rsrc_node = ctx->rsrc_node;
if (!(issue_flags & IO_URING_F_UNLOCKED)) {
lockdep_assert_held(&ctx->uring_lock);
io_charge_rsrc_node(ctx);
} else {
percpu_ref_get(&req->rsrc_node->refs);
}
io_charge_rsrc_node(ctx);
io_ring_submit_unlock(ctx, issue_flags);
}
}