- 30 May, 2021 1 commit
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Pavel Begunkov authored
As Andres reports "... io_sqe_buffer_register() doesn't initialize imu. io_buffer_account_pin() does imu->acct_pages++, before calling io_account_mem(ctx, imu->acct_pages).", leading to evevntual -ENOMEM. Initialise the field. Reported-by:
Andres Freund <andres@anarazel.de> Fixes: 41edf1a5 ("io_uring: keep table of pointers to ubufs") Signed-off-by:
Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/438a6f46739ae5e05d9c75a0c8fa235320ff367c.1622285901.git.asml.silence@gmail.comSigned-off-by:
Jens Axboe <axboe@kernel.dk>
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- 27 May, 2021 1 commit
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Marco Elver authored
Commit ba5ef6dc ("io_uring: fortify tctx/io_wq cleanup") introduced setting tctx->io_wq to NULL a bit earlier. This has caused KCSAN to detect a data race between accesses to tctx->io_wq: write to 0xffff88811d8df330 of 8 bytes by task 3709 on cpu 1: io_uring_clean_tctx fs/io_uring.c:9042 [inline] __io_uring_cancel fs/io_uring.c:9136 io_uring_files_cancel include/linux/io_uring.h:16 [inline] do_exit kernel/exit.c:781 do_group_exit kernel/exit.c:923 get_signal kernel/signal.c:2835 arch_do_signal_or_restart arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] ... read to 0xffff88811d8df330 of 8 bytes by task 6412 on cpu 0: io_uring_try_cancel_iowq fs/io_uring.c:8911 [inline] io_uring_try_cancel_requests fs/io_uring.c:8933 io_ring_exit_work fs/io_uring.c:8736 process_one_work kernel/workqueue.c:2276 ... With the config used, KCSAN only reports data races with value changes: this implies that in the case here we also know that tctx->io_wq was non-NULL. Therefore, depending on interleaving, we may end up with: [CPU 0] | [CPU 1] io_uring_try_cancel_iowq() | io_uring_clean_tctx() if (!tctx->io_wq) // false | ... ... | tctx->io_wq = NULL io_wq_cancel_cb(tctx->io_wq, ...) | ... -> NULL-deref | Note: It is likely that thus far we've gotten lucky and the compiler optimizes the double-read into a single read into a register -- but this is never guaranteed, and can easily change with a different config! Fix the data race by restoring the previous behaviour, where both setting io_wq to NULL and put of the wq are _serialized_ after concurrent io_uring_try_cancel_iowq() via acquisition of the uring_lock and removal of the node in io_uring_del_task_file(). Fixes: ba5ef6dc ("io_uring: fortify tctx/io_wq cleanup") Suggested-by:
Marco Elver <elver@google.com> Cc: Jens Axboe <axboe@kernel.dk> Link: https://lore.kernel.org/r/20210527092547.2656514-1-elver@google.comSigned-off-by:
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- 26 May, 2021 2 commits
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Zqiang authored
BUG: KASAN: use-after-free in __wake_up_common+0x637/0x650 Read of size 8 at addr ffff8880304250d8 by task iou-wrk-28796/28802 Call Trace: __dump_stack [inline] dump_stack+0x141/0x1d7 print_address_description.constprop.0.cold+0x5b/0x2c6 __kasan_report [inline] kasan_report.cold+0x7c/0xd8 __wake_up_common+0x637/0x650 __wake_up_common_lock+0xd0/0x130 io_worker_handle_work+0x9dd/0x1790 io_wqe_worker+0xb2a/0xd40 ret_from_fork+0x1f/0x30 Allocated by task 28798: kzalloc_node [inline] io_wq_create+0x3c4/0xdd0 io_init_wq_offload [inline] io_uring_alloc_task_context+0x1bf/0x6b0 __io_uring_add_task_file+0x29a/0x3c0 io_uring_add_task_file [inline] io_uring_install_fd [inline] io_uring_create [inline] io_uring_setup+0x209a/0x2bd0 do_syscall_64+0x3a/0xb0 entry_SYSCALL_64_after_hwframe+0x44/0xae Freed by task 28798: kfree+0x106/0x2c0 io_wq_destroy+0x182/0x380 io_wq_put [inline] io_wq_put_and_exit+0x7a/0xa0 io_uring_clean_tctx [inline] __io_uring_cancel+0x428/0x530 io_uring_files_cancel do_exit+0x299/0x2a60 do_group_exit+0x125/0x310 get_signal+0x47f/0x2150 arch_do_signal_or_restart+0x2a8/0x1eb0 handle_signal_work[inline] exit_to_user_mode_loop [inline] exit_to_user_mode_prepare+0x171/0x280 __syscall_exit_to_user_mode_work [inline] syscall_exit_to_user_mode+0x19/0x60 do_syscall_64+0x47/0xb0 entry_SYSCALL_64_after_hwframe There are the following scenarios, hash waitqueue is shared by io-wq1 and io-wq2. (note: wqe is worker) io-wq1:worker2 | locks bit1 io-wq2:worker1 | waits bit1 io-wq1:worker3 | waits bit1 io-wq1:worker2 | completes all wqe bit1 work items io-wq1:worker2 | drop bit1, exit io-wq2:worker1 | locks bit1 io-wq1:worker3 | can not locks bit1, waits bit1 and exit io-wq1 | exit and free io-wq1 io-wq2:worker1 | drops bit1 io-wq1:worker3 | be waked up, even though wqe is freed After all iou-wrk belonging to io-wq1 have exited, remove wqe form hash waitqueue, it is guaranteed that there will be no more wqe belonging to io-wq1 in the hash waitqueue. Reported-by: syzbot+6cb11ade52aa17095297@syzkaller.appspotmail.com Signed-off-by:
Zqiang <qiang.zhang@windriver.com> Link: https://lore.kernel.org/r/20210526050826.30500-1-qiang.zhang@windriver.comSigned-off-by:
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Pavel Begunkov authored
There is an old problem with io-wq cancellation where requests should be killed and are in io-wq but are not discoverable, e.g. in @next_hashed or @linked vars of io_worker_handle_work(). It adds some unreliability to individual request canellation, but also may potentially get __io_uring_cancel() stuck. For instance: 1) An __io_uring_cancel()'s cancellation round have not found any request but there are some as desribed. 2) __io_uring_cancel() goes to sleep 3) Then workers wake up and try to execute those hidden requests that happen to be unbound. As we already cancel all requests of io-wq there, set IO_WQ_BIT_EXIT in advance, so preventing 3) from executing unbound requests. The workers will initially break looping because of getting a signal as they are threads of the dying/exec()'ing user task. Cc: stable@vger.kernel.org Signed-off-by:
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- 20 May, 2021 1 commit
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Pavel Begunkov authored
We don't want anyone poking into tctx->io_wq awhile it's being destroyed by io_wq_put_and_exit(), and even though it shouldn't even happen, if buggy would be preferable to get a NULL-deref instead of subtle delayed failure or UAF. Signed-off-by:
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- 17 May, 2021 1 commit
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Pavel Begunkov authored
__io_queue_proc() is used by both poll and apoll, so we should not access req->poll directly but selecting right struct io_poll_iocb depending on use case. Reported-and-tested-by: syzbot+a84b8783366ecb1c65d0@syzkaller.appspotmail.com Fixes: ea6a693d ("io_uring: disable multishot poll for double poll add cases") Signed-off-by:
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- 14 May, 2021 3 commits
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Pavel Begunkov authored
Since recent changes instead of storing a large array of struct io_mapped_ubuf, we store pointers to them, that is 4 times slimmer and we should not to so worry about restricting max number of registererd buffer slots, increase the limit 4 times. Signed-off-by:
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Pavel Begunkov authored
There are three types of requests that left disabled for sqpoll, namely epoll ctx, statx, and resources update. Since SQPOLL task is now closely mimics a userspace thread, remove the restrictions. Signed-off-by:
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Pavel Begunkov authored
Always remove linked timeout on io_link_timeout_fn() from the master request link list, otherwise we may get use-after-free when first io_link_timeout_fn() puts linked timeout in the fail path, and then will be found and put on master's free. Cc: stable@vger.kernel.org # 5.10+ Fixes: 90cd7e42 ("io_uring: track link timeout's master explicitly") Reported-and-tested-by: syzbot+5a864149dd970b546223@syzkaller.appspotmail.com Signed-off-by:
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- 09 May, 2021 1 commit
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Pavel Begunkov authored
WARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 RIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 Call Trace: __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] io_put_req fs/io_uring.c:2140 [inline] io_queue_linked_timeout fs/io_uring.c:6300 [inline] __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354 io_submit_sqe fs/io_uring.c:6534 [inline] io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660 __do_sys_io_uring_enter fs/io_uring.c:9240 [inline] __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182 io_link_timeout_fn() should put only one reference of the linked timeout request, however in case of racing with the master request's completion first io_req_complete() puts one and then io_put_req_deferred() is called. Cc: stable@vger.kernel.org # 5.12+ Fixes: 9ae1f8dd ("io_uring: fix inconsistent lock state") Reported-by: syzbot+a2910119328ce8e7996f@syzkaller.appspotmail.com Signed-off-by:
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- 05 May, 2021 3 commits
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Stefan Metzmacher authored
As io_threads are fully set up USER threads it's clearer to separate the code path from the KTHREAD logic. The only remaining difference to user space threads is that io_threads never return to user space again. Instead they loop within the given worker function. The fact that they never return to user space means they don't have an user space thread stack. In order to indicate that to tools like gdb we reset the stack and instruction pointers to 0. This allows gdb attach to user space processes using io-uring, which like means that they have io_threads, without printing worrying message like this: warning: Selected architecture i386:x86-64 is not compatible with reported target architecture i386 warning: Architecture rejected target-supplied description The output will be something like this: (gdb) info threads Id Target Id Frame * 1 LWP 4863 "io_uring-cp-for" syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 2 LWP 4864 "iou-mgr-4863" 0x0000000000000000 in ?? () 3 LWP 4865 "iou-wrk-4863" 0x0000000000000000 in ?? () (gdb) thread 3 [Switching to thread 3 (LWP 4865)] #0 0x0000000000000000 in ?? () (gdb) bt #0 0x0000000000000000 in ?? () Backtrace stopped: Cannot access memory at address 0x0 Fixes: 4727dc20 ("arch: setup PF_IO_WORKER threads like PF_KTHREAD") Link: https://lore.kernel.org/io-uring/044d0bad-6888-a211-e1d3-159a4aeed52d@polymtl.ca/T/#m1bbf5727e3d4e839603f6ec7ed79c7eebfba6267Signed-off-by:Stefan Metzmacher <metze@samba.org> cc: Linus Torvalds <torvalds@linux-foundation.org> cc: Jens Axboe <axboe@kernel.dk> cc: Andy Lutomirski <luto@kernel.org> cc: linux-kernel@vger.kernel.org cc: io-uring@vger.kernel.org cc: x86@kernel.org Link: https://lore.kernel.org/r/20210505110310.237537-1-metze@samba.orgReviewed-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Lukas Bulwahn authored
The files in ./tools/io_uring/ are maintained by the IO_URING maintainers. Reflect that fact in MAINTAINERS. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20210505053728.3868-1-lukas.bulwahn@gmail.comSigned-off-by:
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Thadeu Lima de Souza Cascardo authored
Read and write operations are capped to MAX_RW_COUNT. Some read ops rely on that limit, and that is not guaranteed by the IORING_OP_PROVIDE_BUFFERS. Truncate those lengths when doing io_add_buffers, so buffer addresses still use the uncapped length. Also, take the chance and change struct io_buffer len member to __u32, so it matches struct io_provide_buffer len member. This fixes CVE-2021-3491, also reported as ZDI-CAN-13546. Fixes: ddf0322d ("io_uring: add IORING_OP_PROVIDE_BUFFERS") Reported-by: Billy Jheng Bing-Jhong (@st424204) Signed-off-by:
Thadeu Lima de Souza Cascardo <cascardo@canonical.com> Signed-off-by:
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- 30 Apr, 2021 1 commit
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Zqiang authored
unreferenced object 0xffff8881123bf0a0 (size 32): comm "syz-executor557", pid 8384, jiffies 4294946143 (age 12.360s) backtrace: [<ffffffff81469b71>] kmalloc_node include/linux/slab.h:579 [inline] [<ffffffff81469b71>] kvmalloc_node+0x61/0xf0 mm/util.c:587 [<ffffffff815f0b3f>] kvmalloc include/linux/mm.h:795 [inline] [<ffffffff815f0b3f>] kvmalloc_array include/linux/mm.h:813 [inline] [<ffffffff815f0b3f>] kvcalloc include/linux/mm.h:818 [inline] [<ffffffff815f0b3f>] io_rsrc_data_alloc+0x4f/0xc0 fs/io_uring.c:7164 [<ffffffff815f26d8>] io_sqe_buffers_register+0x98/0x3d0 fs/io_uring.c:8383 [<ffffffff815f84a7>] __io_uring_register+0xf67/0x18c0 fs/io_uring.c:9986 [<ffffffff81609222>] __do_sys_io_uring_register fs/io_uring.c:10091 [inline] [<ffffffff81609222>] __se_sys_io_uring_register fs/io_uring.c:10071 [inline] [<ffffffff81609222>] __x64_sys_io_uring_register+0x112/0x230 fs/io_uring.c:10071 [<ffffffff842f616a>] do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 [<ffffffff84400068>] entry_SYSCALL_64_after_hwframe+0x44/0xae Fix data->tags memory leak, through io_rsrc_data_free() to release data memory space. Reported-by: syzbot+0f32d05d8b6cd8d7ea3e@syzkaller.appspotmail.com Signed-off-by:
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- 29 Apr, 2021 17 commits
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Colin Ian King authored
Currently the -EINVAL error return path is leaking memory allocated to data. Fix this by not returning immediately but instead setting the error return variable to -EINVAL and breaking out of the loop. Kudos to Pavel Begunkov for suggesting a correct fix. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Pavel Begunkov authored
io_rsrc_node_switch_start() can fail, don't forget to check returned error code. Reported-by: syzbot+a4715dd4b7c866136f79@syzkaller.appspotmail.com Fixes: eae071c9 ("io_uring: prepare fixed rw for dynanic buffers") Signed-off-by:
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Pavel Begunkov authored
Allow empty reg buffer slots any request using which should fail. This allows users to not register all buffers in advance, but do it lazily and/or on demand via updates. That is achieved by setting iov_base and iov_len to zero for registration and/or buffer updates. Empty buffer can't have a non-zero tag. Implementation details: to not add extra overhead to io_import_fixed(), create a dummy buffer crafted to fail any request using it, and set it to all empty buffer slots. Signed-off-by:
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Pavel Begunkov authored
Add a couple of BUILD_BUG_ON() checking some rsrc uapi structs and SQE flags. Signed-off-by:
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Pavel Begunkov authored
CQE flags take one byte that we store in req->flags together with other REQ_F_* internal flags. CQE flags are copied directly into req and then verified that requires some handling on failures, e.g. to make sure that that copy doesn't set some of the internal flags. Move all internal flags to take bits after the first byte, so we don't need extra handling and make it safer overall. Signed-off-by:
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Pavel Begunkov authored
Resource emitted CQEs are not bound to requests, so fix up counters used for DRAIN/defer logic. Fixes: b60c8dce ("io_uring: preparation for rsrc tagging") Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 tlb updates from Ingo Molnar: "The x86 MM changes in this cycle were: - Implement concurrent TLB flushes, which overlaps the local TLB flush with the remote TLB flush. In testing this improved sysbench performance measurably by a couple of percentage points, especially if TLB-heavy security mitigations are active. - Further micro-optimizations to improve the performance of TLB flushes" * tag 'x86-mm-2021-04-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: smp: Micro-optimize smp_call_function_many_cond() smp: Inline on_each_cpu_cond() and on_each_cpu() x86/mm/tlb: Remove unnecessary uses of the inline keyword cpumask: Mark functions as pure x86/mm/tlb: Do not make is_lazy dirty for no reason x86/mm/tlb: Privatize cpu_tlbstate x86/mm/tlb: Flush remote and local TLBs concurrently x86/mm/tlb: Open-code on_each_cpu_cond_mask() for tlb_is_not_lazy() x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote() smp: Run functions concurrently in smp_call_function_many_cond() -
git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds authored
Pull Microblaze updates from Michal Simek: "No new features, just about cleaning up some code and moving to generic syscall solution used by other architectures: - Switch to generic syscall scripts - Some small fixes" * tag 'microblaze-v5.13' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: add 'fallthrough' to memcpy/memset/memmove microblaze: Fix a typo microblaze: tag highmem_setup() with __meminit microblaze: syscalls: switch to generic syscallhdr.sh microblaze: syscalls: switch to generic syscalltbl.sh
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds authored
Pull MIPS updates from Thomas Bogendoerfer: - removed get_fs/set_fs - removed broken/unmaintained MIPS KVM trap and emulate support - added support for Loongson-2K1000 - fixes and cleanups * tag 'mips_5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (107 commits) MIPS: BCM63XX: Use BUG_ON instead of condition followed by BUG. MIPS: select ARCH_KEEP_MEMBLOCK unconditionally mips: Do not include hi and lo in clobber list for R6 MIPS:DTS:Correct the license for Loongson-2K MIPS:DTS:Fix label name and interrupt number of ohci for Loongson-2K MIPS: Avoid handcoded DIVU in `__div64_32' altogether lib/math/test_div64: Correct the spelling of "dividend" lib/math/test_div64: Fix error message formatting mips/bootinfo:correct some comments of fw_arg MIPS: Avoid DIVU in `__div64_32' is result would be zero MIPS: Reinstate platform `__div64_32' handler div64: Correct inline documentation for `do_div' lib/math: Add a `do_div' test module MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE MIPS: pci-legacy: revert "use generic pci_enable_resources" MIPS: Loongson64: Add kexec/kdump support MIPS: pci-legacy: use generic pci_enable_resources MIPS: pci-legacy: remove busn_resource field MIPS: pci-legacy: remove redundant info messages MIPS: pci-legacy: stop using of_pci_range_to_resource ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds authored
Pull fsnotify updates from Jan Kara: - support for limited fanotify functionality for unpriviledged users - faster merging of fanotify events - a few smaller fsnotify improvements * tag 'fsnotify_for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: shmem: allow reporting fanotify events with file handles on tmpfs fs: introduce a wrapper uuid_to_fsid() fanotify_user: use upper_32_bits() to verify mask fanotify: support limited functionality for unprivileged users fanotify: configurable limits via sysfs fanotify: limit number of event merge attempts fsnotify: use hash table for faster events merge fanotify: mix event info and pid into merge key hash fanotify: reduce event objectid to 29-bit hash fsnotify: allow fsnotify_{peek,remove}_first_event with empty queue
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fsLinus Torvalds authored
Pull quota, ext2, reiserfs updates from Jan Kara: - support for path (instead of device) based quotactl syscall (quotactl_path(2)) - ext2 conversion to kmap_local() - other minor cleanups & fixes * tag 'for_v5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: fs/reiserfs/journal.c: delete useless variables fs/ext2: Replace kmap() with kmap_local_page() ext2: Match up ext2_put_page() with ext2_dotdot() and ext2_find_entry() fs/ext2/: fix misspellings using codespell tool quota: report warning limits for realtime space quotas quota: wire up quotactl_path quota: Add mountpath based quota support
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs updates from Darrick Wong: "The notable user-visible addition this cycle is ability to remove space from the last AG in a filesystem. This is the first of many changes needed for full-fledged support for shrinking a filesystem. Still needed are (a) the ability to reorganize files and metadata away from the end of the fs; (b) the ability to remove entire allocation groups; (c) shrink support for realtime volumes; and (d) thorough testing of (a-c). There are a number of performance improvements in this code drop: Dave streamlined various parts of the buffer logging code and reduced the cost of various debugging checks, and added the ability to pre-create the xattr structures while creating files. Brian eliminated transaction reservations that were being held across writeback (thus reducing livelock potential. Other random pieces: Pavel fixed the repetitve warnings about deprecated mount options, I fixed online fsck to behave itself when a readonly remount comes in during scrub, and refactored various other parts of that code, Christoph contributed a lot of refactoring this cycle. The xfs_icdinode structure has been absorbed into the (incore) xfs_inode structure, and the format and flags handling around xfs_inode_fork structures has been simplified. Chandan provided a number of fixes for extent count overflow related problems that have been shaken out by debugging knobs added during 5.12. Summary: - Various minor fixes in online scrub. - Prevent metadata files from being automatically inactivated. - Validate btree heights by the computed per-btree limits. - Don't warn about remounting with deprecated mount options. - Initialize attr forks at create time if we suspect we're going to need to store them. - Reduce memory reallocation workouts in the logging code. - Fix some theoretical math calculation errors in logged buffers that span multiple discontig memory ranges but contiguous ondisk regions. - Speedups in dirty buffer bitmap handling. - Make type verifier functions more inline-happy to reduce overhead. - Reduce debug overhead in directory checking code. - Many many typo fixes. - Begin to handle the permanent loss of the very end of a filesystem. - Fold struct xfs_icdinode into xfs_inode. - Deprecate the long defunct BMV_IF_NO_DMAPI_READ from the bmapx ioctl. - Remove a broken directory block format check from online scrub. - Fix a bug where we could produce an unnecessarily tall data fork btree when creating an attr fork. - Fix scrub and readonly remounts racing. - Fix a writeback ioend log deadlock problem by dropping the behavior where we could preallocate a setfilesize transaction. - Fix some bugs in the new extent count checking code. - Fix some bugs in the attr fork preallocation code. - Refactor if_flags out of the incore inode fork data structure" * tag 'xfs-5.13-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (77 commits) xfs: remove xfs_quiesce_attr declaration xfs: remove XFS_IFEXTENTS xfs: remove XFS_IFINLINE xfs: remove XFS_IFBROOT xfs: only look at the fork format in xfs_idestroy_fork xfs: simplify xfs_attr_remove_args xfs: rename and simplify xfs_bmap_one_block xfs: move the XFS_IFEXTENTS check into xfs_iread_extents xfs: drop unnecessary setfilesize helper xfs: drop unused ioend private merge and setfilesize code xfs: open code ioend needs workqueue helper xfs: drop submit side trans alloc for append ioends xfs: fix return of uninitialized value in variable error xfs: get rid of the ip parameter to xchk_setup_* xfs: fix scrub and remount-ro protection when running scrub xfs: move the check for post-EOF mappings into xfs_can_free_eofblocks xfs: move the xfs_can_free_eofblocks call under the IOLOCK xfs: precalculate default inode attribute offset xfs: default attr fork size does not handle device inodes xfs: inode fork allocation depends on XFS_IFEXTENT flag ... -
git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2Linus Torvalds authored
Pull gfs2 updates from Andreas Gruenbacher: - Fix some compiler and kernel-doc warnings - Various minor cleanups and optimizations - Add a new sysfs gfs2 status file with some filesystem wide information * tag 'gfs2-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: gfs2: Fix fall-through warnings for Clang gfs2: Fix a number of kernel-doc warnings gfs2: Make gfs2_setattr_simple static gfs2: Add new sysfs file for gfs2 status gfs2: Silence possible null pointer dereference warning gfs2: Turn gfs2_meta_indirect_buffer into gfs2_meta_buffer gfs2: Replace gfs2_lblk_to_dblk with gfs2_get_extent gfs2: Turn gfs2_extent_map into gfs2_{get,alloc}_extent gfs2: Add new gfs2_iomap_get helper gfs2: Remove unused variable sb_format gfs2: Fix dir.c function parameter descriptions gfs2: Eliminate gh parameter from go_xmote_bh func gfs2: don't create empty buffers for NO_CREATE
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git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfatLinus Torvalds authored
Pull exfat updates from Namjae Jeon: - Improve write performance with dirsync mount option - Improve lookup performance - Add support for FITRIM ioctl - Fix a bug with discard option * tag 'exfat-for-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: speed up iterate/lookup by fixing start point of traversing cluster chain exfat: improve write performance when dirsync enabled exfat: add support ioctl and FITRIM function exfat: introduce bitmap_lock for cluster bitmap access exfat: fix erroneous discard when clear cluster bit
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI updates from James Bottomley: "This consists of the usual driver updates (ufs, target, tcmu, smartpqi, lpfc, zfcp, qla2xxx, mpt3sas, pm80xx). The major core change is using a sbitmap instead of an atomic for queue tracking" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (412 commits) scsi: target: tcm_fc: Fix a kernel-doc header scsi: target: Shorten ALUA error messages scsi: target: Fix two format specifiers scsi: target: Compare explicitly with SAM_STAT_GOOD scsi: sd: Introduce a new local variable in sd_check_events() scsi: dc395x: Open-code status_byte(u8) calls scsi: 53c700: Open-code status_byte(u8) calls scsi: smartpqi: Remove unused functions scsi: qla4xxx: Remove an unused function scsi: myrs: Remove unused functions scsi: myrb: Remove unused functions scsi: mpt3sas: Fix two kernel-doc headers scsi: fcoe: Suppress a compiler warning scsi: libfc: Fix a format specifier scsi: aacraid: Remove an unused function scsi: core: Introduce enum scsi_disposition scsi: core: Modify the scsi_send_eh_cmnd() return value for the SDEV_BLOCK case scsi: core: Rename scsi_softirq_done() into scsi_complete() scsi: core: Remove an incorrect comment scsi: core: Make the scsi_alloc_sgtables() documentation more accurate ...
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git://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO updates from Alex Williamson: - Embed struct vfio_device into vfio driver structures (Jason Gunthorpe) - Make vfio_mdev type safe (Jason Gunthorpe) - Remove vfio-pci NVLink2 extensions for POWER9 (Christoph Hellwig) - Update vfio-pci IGD extensions for OpRegion 2.1+ (Fred Gao) - Various spelling/blank line fixes (Zhen Lei, Zhou Wang, Bhaskar Chowdhury) - Simplify unpin_pages error handling (Shenming Lu) - Fix i915 mdev Kconfig dependency (Arnd Bergmann) - Remove unused structure member (Keqian Zhu) * tag 'vfio-v5.13-rc1' of git://github.com/awilliam/linux-vfio: (43 commits) vfio/gvt: fix DRM_I915_GVT dependency on VFIO_MDEV vfio/iommu_type1: Remove unused pinned_page_dirty_scope in vfio_iommu vfio/mdev: Correct the function signatures for the mdev_type_attributes vfio/mdev: Remove kobj from mdev_parent_ops->create() vfio/gvt: Use mdev_get_type_group_id() vfio/gvt: Make DRM_I915_GVT depend on VFIO_MDEV vfio/mbochs: Use mdev_get_type_group_id() vfio/mdpy: Use mdev_get_type_group_id() vfio/mtty: Use mdev_get_type_group_id() vfio/mdev: Add mdev/mtype_get_type_group_id() vfio/mdev: Remove duplicate storage of parent in mdev_device vfio/mdev: Add missing error handling to dev_set_name() vfio/mdev: Reorganize mdev_device_create() vfio/mdev: Add missing reference counting to mdev_type vfio/mdev: Expose mdev_get/put_parent to mdev_private.h vfio/mdev: Use struct mdev_type in struct mdev_device vfio/mdev: Simplify driver registration vfio/mdev: Add missing typesafety around mdev_device vfio/mdev: Do not allow a mdev_type to have a NULL parent pointer vfio/mdev: Fix missing static's on MDEV_TYPE_ATTR's ...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk updates from Stephen Boyd: "Here's a collection of largely clk driver updates. The usual suspects are here: i.MX, Qualcomm, Renesas, Allwinner, Samsung, and Rockchip, but it feels pretty light on commits. There's only one real commit to the framework core and that's to consolidate code. Otherwise the diffstat is dominated by many Qualcomm clk driver patches that modernize the driver for the proper way of speciying clk parents. That's shifting data around, which could subtly break things so I'll be on the lookout for fixes. New Drivers: - Proper clk driver for Mediatek MT7621 SoCs - Support for the clock controller on the new Rockchip rk3568 Updates: - Simplify Zynq Kconfig dependencies - Use clk_hw pointers in socfpga driver - Cleanup parent data in qcom clk drivers - Some cleanups for rk3399 modularization - Fix reparenting of i.MX UART clocks by initializing only the ones associated to stdout - Correct the PCIE clocks for i.MX8MP and i.MX8MQ - Make i.MX LPCG and SCU clocks return on registering failure - Kernel doc fixes - Add DAB hardware accelerator clocks on Renesas R-Car E3 and M3-N - Add timer (TMU) clocks on Renesas R-Car H3 ES1.0 - Add Timer (TMU & CMT) and thermal sensor (TSC) clocks on Renesas R-Car V3U - Sigma-delta modulation on Allwinner V3s audio PLL" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (82 commits) MAINTAINERS: add MT7621 CLOCK maintainer staging: mt7621-dts: use valid vendor 'mediatek' instead of invalid 'mtk' staging: mt7621-dts: make use of new 'mt7621-clk' clk: ralink: add clock driver for mt7621 SoC clk: uniphier: Fix potential infinite loop clk: qcom: rpmh: add support for SDX55 rpmh IPA clock clk: qcom: gcc-sdm845: get rid of the test clock clk: qcom: convert SDM845 Global Clock Controller to parent_data dt-bindings: clock: separate SDM845 GCC clock bindings clk: qcom: apss-ipq-pll: Add missing MODULE_DEVICE_TABLE clk: qcom: a53-pll: Add missing MODULE_DEVICE_TABLE clk: qcom: a7-pll: Add missing MODULE_DEVICE_TABLE dt: bindings: add mt7621-sysc device tree binding documentation dt-bindings: clock: add dt binding header for mt7621 clocks clk: samsung: Remove redundant dev_err calls clk: zynqmp: pll: add set_pll_mode to check condition in zynqmp_pll_enable clk: zynqmp: move zynqmp_pll_set_mode out of round_rate callback clk: zynqmp: Drop dependency on ARCH_ZYNQMP clk: zynqmp: Enable the driver if ZYNQMP_FIRMWARE is selected clk: qcom: gcc-sm8350: use ARRAY_SIZE instead of specifying num_parents ...
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- 28 Apr, 2021 9 commits
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git://git.linaro.org/landing-teams/working/fujitsu/integrationLinus Torvalds authored
Pull mailbox updates from Jassi Brar: "qcom: - enable support for SM8350 and SC7280 sprd: - refcount channel usage - specify interrupt names in dt - support sc9863a arm: - drop redundant print ti: - convert dt-bindings to json schema and misc spelling fixes" * tag 'mailbox-v5.13' of git://git.linaro.org/landing-teams/working/fujitsu/integration: dt-bindings: mailbox: qcom-ipcc: Add compatible for SC7280 dt-bindings: mailbox: ti,secure-proxy: Convert to json schema mailbox: arm_mhu_db: Remove redundant dev_err call in mhu_db_probe() mailbox: sprd: Add supplementary inbox support dt-bindings: mailbox: Add interrupt-names to SPRD mailbox mailbox: sprd: Introduce refcnt when clients requests/free channels MAINTAINERS: Add DT bindings directory to mailbox mailbox: fix various typos in comments mailbox: pcc: fix platform_no_drv_owner.cocci warnings dt-bindings: mailbox: Add compatible for SM8350 IPCC
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlightLinus Torvalds authored
Pull backlight updates from Lee Jones: "New Device Support: - Add support for PMI8994 to Qualcom WLED - Add support for KTD259 to Kinetic KTD253 Fix-ups: - Device Tree related fix-ups; kinetic,ktd253 - Use proper sequence during sync_toggle; qcom-wled - Fix Wmisleading-indentation warnings; jornada720_bl Bug Fixes: - Fix sync toggle on WLED4; qcom-wled - Fix FSC update on WLED5; qcom-wled" * tag 'backlight-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight: backlight: journada720: Fix Wmisleading-indentation warning backlight: qcom-wled: Correct the sync_toggle sequence backlight: qcom-wled: Fix FSC update issue for WLED5 dt-bindings: backlight: Add Kinetic KTD259 bindings backlight: ktd253: Support KTD259 backlight: qcom-wled: Use sink_addr for sync toggle dt-bindings: backlight: qcom-wled: Add PMI8994 compatible
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfdLinus Torvalds authored
Pull MFD updates from Lee Jones: "Core Framework: - Add support for Software Nodes to MFD Core - Remove support for Device Properties from MFD Core - Use standard APIs in MFD Core New Drivers: - Add support for ROHM BD9576MUF and BD9573MUF PMICs - Add support for Netronix Embedded Controller, PWM and RTC - Add support for Actions Semi ATC260x PMICs and OnKey New Device Support: - Add support for DG1 PCIe Graphics Card to Intel PMT - Add support for ROHM BD71815 PMIC to ROHM BD71828 - Add support for Tolino Shine 2 HD to Netronix Embedded Controller - Add support for AX10 BMC Secure Updates to Intel M10 BMC Removed Device Support: - Remove Arizona Extcon support from MFD - Remove ST-E AB8500 Power Supply code from MFD - Remove AB3100 altogether New Functionality: - Add support for SMBus and I2C modes to Dialog DA9063 - Switch to using Software Nodes in Intel (various) New/converted Device Tree bindings: - rohm bd71815-pmic, rohm bd9576-pmic, netronix ntxec, actions atc260x, ricoh rn5t618, qcom pm8xxx - Fix-ups: - Fix error handling/path; intel_pmt - Simplify code; rohm-bd718x7, ab8500-core, intel-m10-bmc - Trivial clean-ups (reordering, spelling); rohm-generic, rn5t618, max8997 - Use correct data-type; db8500-prcmu - Remove superfluous code; lp87565, intel_quark_i2c_gpi, lpc_sch, twl - Use generic APIs/defines; lm3533-core, intel_quark_i2c_gpio - Regmap related fix-ups; intel-m10-bmc, sec-core - Reorder resource freeing during remove; intel_quark_i2c_gpio - Make table indexing more robust; intel_quark_i2c_gpio - Fix reference imbalances; arizona-irq - Staticify and (un)constify things; arizona-spi, stmpe, ene-kb3930, intel-lpss-acpi, intel-lpss-pci, atc260x-i2c, intel_quark_i2c_gpio Bug Fixes: - Fix incorrect (register) values; intel-m10-bmc - Kconfig related fixes; ABX500_CORE - Do not clear the Auto Reload Register; stm32-timers" * tag 'mfd-next-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (84 commits) mfd: intel-m10-bmc: Add support for MAX10 BMC Secure Updates Revert "mfd: max8997: Add of_compatible to Extcon and Charger mfd_cell" mfd: twl: Remove unused inline function twl4030charger_usb_en() dt-bindings: mfd: Convert pm8xxx bindings to yaml dt-bindings: mfd: Add compatible for pmk8350 rtc i2c: designware: Get rid of legacy platform data mfd: intel_quark_i2c_gpio: Convert I²C to use software nodes mfd: lpc_sch: Partially revert "Add support for Intel Quark X1000" mfd: arizona: Fix rumtime PM imbalance on error mfd: max8997: Replace 8998 with 8997 mfd: core: Use acpi_find_child_device() for child devices lookup mfd: intel_quark_i2c_gpio: Don't play dirty trick with const mfd: intel_quark_i2c_gpio: Enable MSI interrupt mfd: intel_quark_i2c_gpio: Reuse BAR definitions for MFD cell indexing mfd: ntxec: Support for EC in Tolino Shine 2 HD mfd: stm32-timers: Avoid clearing auto reload register mfd: intel_quark_i2c_gpio: Replace I²C speeds with descriptive definitions mfd: intel_quark_i2c_gpio: Remove unused struct device member mfd: intel_quark_i2c_gpio: Unregister resources in reversed order mfd: Kconfig: ABX500_CORE should depend on ARCH_U8500 ... -
git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds authored
Pull MMC and MEMSTICK updates from Ulf Hansson: "MMC core: - Fix hanging on I/O during system suspend for removable cards - Set read only for SD cards with permanent write protect bit - Power cycle the SD/SDIO card if CMD11 fails for UHS voltage - Issue a cache flush for eMMC only when it's enabled - Adopt to updated cache ctrl settings for eMMC from MMC ioctls - Use use device property API when parsing voltages - Don't retry eMMC sanitize cmds - Use the timeout from the MMC ioctl for eMMC santize cmds MMC host: - mmc_spi: Make of_mmc_spi.c resource provider agnostic - mmc_spi: Use polling for card detect even without voltage-ranges - sdhci: Check for reset prior to DMA address unmap - sdhci-acpi: Add support for the AMDI0041 eMMC controller variant - sdhci-esdhc-imx: Depending on OF Kconfig and cleanup code - sdhci-pci: Add PCI IDs for Intel LKF - sdhci-pci: Fix initialization of some SD cards for Intel BYT - sdhci-pci-gli: Various improvements for GL97xx variants - sdhci-of-dwcmshc: Enable support for MMC_CAP_WAIT_WHILE_BUSY - sdhci-of-dwcmshc: Add ACPI support for BlueField-3 SoC - sdhci-of-dwcmshc: Add Rockchip platform support - tmio/renesas_sdhi: Extend support for reset and use a reset controller - tmio/renesas_sdhi: Enable support for MMC_CAP_WAIT_WHILE_BUSY - tmio/renesas_sdhi: Various improvements MEMSTICK: - Minor improvements/cleanups" * tag 'mmc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (79 commits) mmc: block: Issue a cache flush only when it's enabled memstick: r592: ignore kfifo_out() return code again mmc: block: Update ext_csd.cache_ctrl if it was written mmc: mmc_spi: Make of_mmc_spi.c resource provider agnostic mmc: mmc_spi: Use already parsed IRQ mmc: mmc_spi: Drop unused NO_IRQ definition mmc: mmc_spi: Set up polling even if voltage-ranges is not present mmc: core: Convert mmc_of_parse_voltage() to use device property API mmc: core: Correct descriptions in mmc_of_parse() mmc: dw_mmc-rockchip: Just set default sample value for legacy mode mmc: sdhci-s3c: constify uses of driver/match data mmc: sdhci-s3c: correct kerneldoc of sdhci_s3c_drv_data mmc: sdhci-s3c: simplify getting of_device_id match data mmc: tmio: always restore irq register mmc: sdhci-pci-gli: Enlarge ASPM L1 entry delay of GL975x mmc: core: Let eMMC sanitize not retry in case of timeout/failure mmc: core: Add a retries parameter to __mmc_switch function memstick: r592: remove unused variable mmc: sdhci-st: Remove unnecessary error log mmc: sdhci-msm: Remove unnecessary error log ...
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git://github.com/cminyard/linux-ipmiLinus Torvalds authored
Pull IPMI updates from Corey Minyard: "A bunch of little cleanups Nothing major, no functional changes" * tag 'for-linus-5.13-1' of git://github.com/cminyard/linux-ipmi: ipmi_si: Join string literals back ipmi_si: Drop redundant check before calling put_device() ipmi_si: Use strstrip() to remove surrounding spaces ipmi_si: Get rid of ->addr_source_cleanup() ipmi_si: Reuse si_to_str[] array in ipmi_hardcode_init_one() ipmi_si: Introduce ipmi_panic_event_str[] array ipmi_si: Use proper ACPI macros to check error code for failures ipmi_si: Utilize temporary variable to hold device pointer ipmi_si: Remove bogus err_free label ipmi_si: Switch to use platform_get_mem_or_io() ipmi: Handle device properties with software node API ipmi:ssif: make ssif_i2c_send() void ipmi: Refine retry conditions for getting device id
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull devicetree updates from Rob Herring: - Refactor powerpc and arm64 kexec DT handling to common code. This enables IMA on arm64. - Add kbuild support for applying DT overlays at build time. The first user are the DT unittests. - Fix kerneldoc formatting and W=1 warnings in drivers/of/ - Fix handling 64-bit flag on PCI resources - Bump dtschema version required to v2021.2.1 - Enable undocumented compatible checks for dtbs_check. This allows tracking of missing binding schemas. - DT docs improvements. Regroup the DT docs and add the example schema and DT kernel ABI docs to the doc build. - Convert Broadcom Bluetooth and video-mux bindings to schema - Add QCom sm8250 Venus video codec binding schema - Add vendor prefixes for AESOP, YIC System Co., Ltd, and Siliconfile Technologies Inc. - Cleanup of DT schema type references on common properties and standard unit properties * tag 'devicetree-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (64 commits) powerpc: If kexec_build_elf_info() fails return immediately from elf64_load() powerpc: Free fdt on error in elf64_load() of: overlay: Fix kerneldoc warning in of_overlay_remove() of: linux/of.h: fix kernel-doc warnings of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses dt-bindings: bcm4329-fmac: add optional brcm,ccode-map docs: dt: update writing-schema.rst references dt-bindings: media: venus: Add sm8250 dt schema of: base: Fix spelling issue with function param 'prop' docs: dt: Add DT API documentation of: Add missing 'Return' section in kerneldoc comments of: Fix kerneldoc output formatting docs: dt: Group DT docs into relevant sub-sections docs: dt: Make 'Devicetree' wording more consistent docs: dt: writing-schema: Include the example schema in the doc build docs: dt: writing-schema: Remove spurious indentation dt-bindings: Fix reference in submitting-patches.rst to the DT ABI doc dt-bindings: ddr: Add optional manufacturer and revision ID to LPDDR3 dt-bindings: media: video-interfaces: Drop the example devicetree: bindings: clock: Minor typo fix in the file armada3700-tbg-clock.txt ...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supplyLinus Torvalds authored
Pull power supply and reset updates from Sebastian Reichel: "battery/charger driver changes: - core: - provide function stubs if CONFIG_POWER_SUPPLY=n - reduce loglevel for probe defer info - surface: - new battery and charger drivers for Surface - bq27xxx: - add bq78z100 support - fix current_now/power_avg for newer chips - cw2015: - add CHARGE_NOW support - ab8500: - drop pdata support - convert most DT bindings to YAML - lots of minor fixes and cleanups reset drivers: - ltc2952-poweroff: - make trigger delay configurable from DT - minor fixes and cleanups" * tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (97 commits) power: supply: cpcap-battery: fix invalid usage of list cursor power: supply: bq256xx: add kerneldoc for structure members power: supply: act8945a: correct kerneldoc power: supply: max17040: remove unneeded double cast power: supply: max17040: handle device_property_read_u8_array() failure power: supply: max14577: remove unneeded variable initialization power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static power: supply: surface-battery: Make some symbols static power: reset: restart-poweroff: Add missing MODULE_DEVICE_TABLE power: reset: hisi-reboot: add missing MODULE_DEVICE_TABLE power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove() power: supply: generic-adc-battery: fix possible use-after-free in gab_remove() power: supply: Add AC driver for Surface Aggregator Module power: supply: Add battery driver for Surface Aggregator Module power: supply: bq25980: Move props from battery node power: supply: core: Use true and false for bool variable power: supply: goldfish: Remove the GOLDFISH dependency power: reset: ltc2952: make trigger delay configurable power: supply: cpcap-charger: Simplify bool conversion power: supply: cpcap-charger: Add usleep to cpcap charger to avoid usb plug bounce ... -
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsiLinus Torvalds authored
Pull HSI update from Sebastian Reichel: - memory leak fix in hsi_add_client_from_dt() error path * tag 'hsi-for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: core: fix resource leaks in hsi_add_client_from_dt()
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull io_uring updates from Jens Axboe: - Support for multi-shot mode for POLL requests - More efficient reference counting. This is shamelessly stolen from the mm side. Even though referencing is mostly single/dual user, the 128 count was retained to keep the code the same. Maybe this should/could be made generic at some point. - Removal of the need to have a manager thread for each ring. The manager threads only job was checking and creating new io-threads as needed, instead we handle this from the queue path. - Allow SQPOLL without CAP_SYS_ADMIN or CAP_SYS_NICE. Since 5.12, this thread is "just" a regular application thread, so no need to restrict use of it anymore. - Cleanup of how internal async poll data lifetime is managed. - Fix for syzbot reported crash on SQPOLL cancelation. - Make buffer registration more like file registrations, which includes flexibility in avoiding full set unregistration and re-registration. - Fix for io-wq affinity setting. - Be a bit more defensive in task->pf_io_worker setup. - Various SQPOLL fixes. - Cleanup of SQPOLL creds handling. - Improvements to in-flight request tracking. - File registration cleanups. - Tons of cleanups and little fixes * tag 'for-5.13/io_uring-2021-04-27' of git://git.kernel.dk/linux-block: (156 commits) io_uring: maintain drain logic for multishot poll requests io_uring: Check current->io_uring in io_uring_cancel_sqpoll io_uring: fix NULL reg-buffer io_uring: simplify SQPOLL cancellations io_uring: fix work_exit sqpoll cancellations io_uring: Fix uninitialized variable up.resv io_uring: fix invalid error check after malloc io_uring: io_sq_thread() no longer needs to reset current->pf_io_worker kernel: always initialize task->pf_io_worker to NULL io_uring: update sq_thread_idle after ctx deleted io_uring: add full-fledged dynamic buffers support io_uring: implement fixed buffers registration similar to fixed files io_uring: prepare fixed rw for dynanic buffers io_uring: keep table of pointers to ubufs io_uring: add generic rsrc update with tags io_uring: add IORING_REGISTER_RSRC io_uring: enumerate dynamic resources io_uring: add generic path for rsrc update io_uring: preparation for rsrc tagging io_uring: decouple CQE filling from requests ...
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