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Jens Axboe aadd9b0930 io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly 
commit 7ba89d2af1 upstream.

We currently don't attempt to get the full asked for length even if
MSG_WAITALL is set, if we get a partial receive. If we do see a partial
receive, then just note how many bytes we did and return -EAGAIN to
get it retried.

The iov is advanced appropriately for the vector based case, and we
manually bump the buffer and remainder for the non-vector case.

Cc: stable@vger.kernel.org
Reported-by: Constantine Gavrilov <constantine.gavrilov@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-24 07:19:57 +01:00
arch x86/asm: Fix an assembler warning with current binutils 2023-01-24 07:19:56 +01:00
block blk-mq: fix possible memleak when register 'hctx' failed 2023-01-14 10:16:19 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: tcrypt - Fix multibuffer skcipher speed test mem leak 2023-01-14 10:15:50 +01:00
Documentation KVM: x86: Do not return host topology information from KVM_GET_SUPPORTED_CPUID 2023-01-18 11:45:00 +01:00
drivers Bluetooth: hci_qca: Fix driver shutdown on closed serdev 2023-01-24 07:19:56 +01:00
fs nilfs2: fix general protection fault in nilfs_btree_insert() 2023-01-24 07:19:56 +01:00
include btrfs: fix trace event name typo for FLUSH_DELAYED_REFS 2023-01-24 07:19:55 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-02 17:40:03 +01:00
io_uring io_uring: ensure recv and recvmsg handle MSG_WAITALL correctly 2023-01-24 07:19:57 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:24:00 +01:00
kernel tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line 2023-01-14 10:16:33 +01:00
lib mm/highmem: Lift memcpy_[to|from]_page to core 2023-01-14 10:16:42 +01:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm mm: Always release pages to the buddy allocator in memblock_free_late(). 2023-01-18 11:44:59 +01:00
net wifi: mac80211: sdata can be NULL during AMPDU start 2023-01-24 07:19:56 +01:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2023-01-14 10:16:01 +01:00
scripts scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:23:54 +01:00
security device_cgroup: Roll back to original exceptions after copy failure 2023-01-14 10:16:36 +01:00
sound ALSA: hda/realtek - Turn on power early 2023-01-24 07:19:56 +01:00
tools tools/virtio: initialize spinlocks in vring_test.c 2023-01-24 07:19:55 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt kvm: Add support for arch compat vm ioctls 2022-10-30 09:41:15 +01:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS futex: Move to kernel/futex/ 2023-01-14 10:15:20 +01:00
Makefile Linux 5.10.164 2023-01-18 11:45:02 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.