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linux/io_uring
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Christoph Hellwig 6bb0009862 mm/slab: improve kmem_cache_alloc_bulk 
The kmem_cache_alloc_bulk return value is weird.  It returns the number
of allocated objects, but that must always be 0 or the requested number
based on the implementations and the handling in the callers, but that
assumption is not actually documented anywhere, which confuses automated
review tools.

Fix this by returning a bool if the allocation succeeded and adding a
kerneldoc comment explaining the API.

[rob.clark@oss.qualcomm.com: fixups in
 msm_iommu_pagetable_prealloc_allocate() ]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> # skbuff
Link: https://patch.msgid.link/20260528093437.2519248-2-hch@lst.de
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
2026-06-03 18:20:43 +02:00
..
advise.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
advise.h
…
alloc_cache.c
io_uring: add alloc_cache.c
2025-01-28 15:10:40 -07:00
alloc_cache.h
io_uring/rsrc: use kvfree() for the imu cache
2026-04-21 12:19:01 -06:00
bpf_filter.c
Merge branch 'io_uring-7.0' into for-7.1/io_uring
2026-03-14 08:57:15 -06:00
bpf_filter.h
io_uring: allow registration of per-task restrictions
2026-02-06 07:29:19 -07:00
bpf-ops.c
io_uring: unify getting ctx from passed in file descriptor
2026-04-08 13:21:35 -06:00
bpf-ops.h
io_uring/bpf-ops: implement bpf ops registration
2026-03-16 16:15:00 -06:00
cancel.c
io_uring/cancel: validate opcode for IORING_ASYNC_CANCEL_OP
2026-04-01 10:21:13 -06:00
cancel.h
io_uring/cancel: de-unionize file and user_data in struct io_cancel_data
2026-02-16 14:16:27 -07:00
cmd_net.c
io_uring/cmd_net: split ioctl code out of io_uring_cmd_sock()
2026-03-09 07:21:53 -06:00
epoll.c
io_uring: finish IOU_OK -> IOU_COMPLETE transition
2025-05-21 08:41:16 -06:00
epoll.h
io_uring/epoll: add support for IORING_OP_EPOLL_WAIT
2025-02-20 07:59:56 -07:00
eventfd.c
io_uring/eventfd: reset deferred signal state
2026-05-03 23:21:40 -06:00
eventfd.h
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
fdinfo.c
io_uring/fdinfo: fix OOB read in SQE_MIXED wrap check
2026-03-26 20:28:28 -06:00
fdinfo.h
…
filetable.c
io_uring/filetable: clamp alloc_hint to the configured alloc range
2026-02-11 15:20:44 -07:00
filetable.h
io_uring: Trim out unused includes
2026-01-05 17:08:20 -07:00
fs.c
non-consuming variants of do_{unlinkat,rmdir}()
2026-01-16 12:51:50 -05:00
fs.h
…
futex.c
io_uring/futex: ensure partial wakes are appropriately dequeued
2026-04-21 12:19:06 -06:00
futex.h
io_uring: move cancelations to be io_uring_task based
2024-11-06 13:55:38 -07:00
io_uring.c
mm/slab: improve kmem_cache_alloc_bulk
2026-06-03 18:20:43 +02:00
io_uring.h
Merge tag 'for-7.1/io_uring-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
2026-04-13 16:22:30 -07:00
io-wq.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
io-wq.h
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
kbuf.c
io_uring/kbuf: support min length left for incremental buffers
2026-04-28 16:08:56 -06:00
kbuf.h
io_uring/kbuf: support min length left for incremental buffers
2026-04-28 16:08:56 -06:00
Kconfig
io_uring/bpf-ops: implement loop_step with BPF struct_ops
2026-03-16 16:15:00 -06:00
loop.c
io_uring: introduce callback driven main loop
2026-03-16 16:15:00 -06:00
loop.h
io_uring: introduce callback driven main loop
2026-03-16 16:15:00 -06:00
Makefile
io_uring/bpf-ops: implement loop_step with BPF struct_ops
2026-03-16 16:15:00 -06:00
memmap.c
io_uring: take page references for NOMMU pbuf_ring mmaps
2026-04-21 20:14:39 -06:00
memmap.h
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
mock_file.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
msg_ring.c
io_uring: switch struct io_ring_ctx internal bitfields to flags
2026-03-16 15:32:59 -06:00
msg_ring.h
io_uring/msg_ring: Drop custom destructor
2024-12-27 10:08:21 -07:00
napi.c
io_uring/napi: clear tracked NAPI entries on unregister
2026-05-03 23:21:23 -06:00
napi.h
io_uring/napi: clear tracked NAPI entries on unregister
2026-05-03 23:21:23 -06:00
net.c
Merge tag 'for-7.1/io_uring-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
2026-04-13 16:22:30 -07:00
net.h
io_uring/zctx: unify zerocopy issue variants
2026-03-09 07:21:54 -06:00
nop.c
io_uring/nop: add support for IORING_SETUP_CQE_MIXED
2025-08-27 11:24:15 -06:00
nop.h
…
notif.c
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
notif.h
io_uring/notif: implement notification stacking
2024-04-22 19:31:18 -06:00
opdef.c
io_uring: remove iopoll_queue from struct io_issue_def
2026-03-16 16:14:14 -06:00
opdef.h
io_uring: remove iopoll_queue from struct io_issue_def
2026-03-16 16:14:14 -06:00
openclose.c
io_uring/openclose: fix io_pipe_fixed() slot tracking for specific slots
2026-02-11 20:31:21 -07:00
openclose.h
io_uring/bpf_filter: allow filtering on contents of struct open_how
2026-01-27 11:10:46 -07:00
poll.c
io_uring/poll: ensure EPOLL_ONESHOT is propagated for EPOLL_URING_WAKE
2026-04-21 19:18:34 -06:00
poll.h
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
query.c
io_uring/zcrx: declare some constants for query
2026-03-09 07:21:54 -06:00
query.h
io_uring/query: drop unused io_handle_query_entry() ctx arg
2025-11-26 09:37:10 -07:00
refs.h
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
register.c
io_uring/register: fix ring resizing with mixed/large SQEs/CQEs
2026-04-21 12:19:08 -06:00
register.h
io_uring: unify getting ctx from passed in file descriptor
2026-04-08 13:21:35 -06:00
rsrc.c
io_uring/rsrc: use kvfree() for the imu cache
2026-04-21 12:19:01 -06:00
rsrc.h
io_uring/rsrc: unify nospec indexing for direct descriptors
2026-04-21 12:18:54 -06:00
rw.c
io_uring/rw: add defensive hardening for negative kbuf lengths
2026-04-21 12:19:03 -06:00
rw.h
io_uring: add wrapper type for io_req_tw_func_t arg
2025-11-03 08:31:26 -07:00
slist.h
io_uring: Add SPDX id lines to remaining source files
2026-02-04 07:23:45 -07:00
splice.c
io_uring: don't include filetable.h in io_uring.h
2025-09-08 13:20:46 -06:00
splice.h
io_uring/splice: open code 2nd direct file assignment
2024-10-29 13:43:28 -06:00
sqpoll.c
io_uring/tctx: have io_uring_alloc_task_context() return tctx
2026-04-08 13:21:30 -06:00
sqpoll.h
io_uring/sqpoll: switch away from getrusage() for CPU accounting
2025-10-22 10:51:20 -06:00
statx.c
allow incomplete imports of filenames
2026-01-13 15:18:07 -05:00
statx.h
…
sync.c
io_uring/sync: validate passed in offset
2026-01-21 11:50:59 -07:00
sync.h
…
tctx.c
io_uring: fix iowq_limits data race in tctx node addition
2026-04-20 14:57:21 -06:00
tctx.h
io_uring/tctx: have io_uring_alloc_task_context() return tctx
2026-04-08 13:21:30 -06:00
timeout.c
io_uring/timeout: honour caller's time namespace for IORING_TIMEOUT_ABS
2026-05-06 04:58:56 -06:00
timeout.h
io_uring/timeout: migrate reqs from ts64 to ktime
2026-03-09 07:21:54 -06:00
truncate.c
fs: pass on FTRUNCATE_* flags to do_truncate
2026-03-23 12:41:57 +01:00
truncate.h
io_uring: add support for ftruncate
2024-02-09 09:04:39 -07:00
tw.c
io_uring/tw: serialize ctx->retry_llist with ->uring_lock
2026-04-30 06:57:20 -06:00
tw.h
io_uring: split out CQ waiting code into wait.c
2026-01-22 09:21:16 -07:00
uring_cmd.c
io_uring/uring_cmd: allow non-iopoll cmds with IORING_SETUP_IOPOLL
2026-03-16 16:14:14 -06:00
uring_cmd.h
io_uring/cmd: remove struct io_uring_cmd_data
2025-07-18 12:34:56 -06:00
wait.c
io_uring/wait: honour caller's time namespace for IORING_ENTER_ABS_TIMER
2026-05-06 04:58:56 -06:00
wait.h
Merge tag 'for-7.1/io_uring-20260411' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
2026-04-13 16:22:30 -07:00
waitid.c
io_uring/waitid: fix KCSAN warning on io_waitid->head
2026-01-19 19:55:30 -07:00
waitid.h
io_uring: move cancelations to be io_uring_task based
2024-11-06 13:55:38 -07:00
xattr.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
xattr.h
…
zcrx.c
net: add net_iov_init() and use it to initialize ->page_type
2026-04-29 16:40:08 -07:00
zcrx.h
io_uring/zcrx: rename zcrx [un]register functions
2026-04-01 10:21:13 -06:00