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Andreas Gruenbacher f86f8d2784 iov_iter: Introduce nofault flag to disable page faults 
commit 3337ab08d08b1a375f88471d9c8b1cac968cb054 upstream

Introduce a new nofault flag to indicate to iov_iter_get_pages not to
fault in user pages.

This is implemented by passing the FOLL_NOFAULT flag to get_user_pages,
which causes get_user_pages to fail when it would otherwise fault in a
page. We'll use the ->nofault flag to prevent iomap_dio_rw from faulting
in pages when page faults are not allowed.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-05-01 17:22:33 +02:00
arch
gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable}
2022-05-01 17:22:28 +02:00
block
block/compat_ioctl: fix range check in BLKGETSIZE
2022-04-27 14:39:02 +02:00
certs
certs: Add support for using elliptic curve keys for signing modules
2021-08-23 19:55:42 +03:00
crypto
crypto: xts - Add softdep on ecb
2022-04-08 14:23:55 +02:00
Documentation
ext4, doc: fix incorrect h_reserved size
2022-04-27 14:39:01 +02:00
drivers
gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable}
2022-05-01 17:22:28 +02:00
fs
iomap: Add done_before argument to iomap_dio_rw
2022-05-01 17:22:32 +02:00
include
iov_iter: Introduce nofault flag to disable page faults
2022-05-01 17:22:33 +02:00
init
init/main.c: return 1 from handled __setup() functions
2022-04-13 20:59:10 +02:00
ipc
ipc/sem: do not sleep with a spin lock held
2022-02-08 18:34:03 +01:00
kernel
bpf: Fix crash due to out of bounds access into reg2btf_ids.
2022-05-01 17:22:26 +02:00
lib
iov_iter: Introduce nofault flag to disable page faults
2022-05-01 17:22:33 +02:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
gup: Introduce FOLL_NOFAULT flag to disable page faults
2022-05-01 17:22:32 +02:00
net
bpf: Add MEM_RDONLY for helper args that are pointers to rdonly mem.
2022-05-01 17:22:26 +02:00
samples
samples/bpf, xdpsock: Fix race when running for fix duration of time
2022-04-08 14:23:40 +02:00
scripts
gcc-plugins: latent_entropy: use /dev/urandom
2022-04-20 09:34:18 +02:00
security
Fix incorrect type in assignment of ipv6 port for audit
2022-04-08 14:23:55 +02:00
sound
ASoC: soc-dapm: fix two incorrect uses of list iterator
2022-04-27 14:39:00 +02:00
tools
bpf/selftests: Test PTR_TO_RDONLY_MEM
2022-05-01 17:22:26 +02:00
usr
usr/include/Makefile: add linux/nfc.h to the compile-test coverage
2022-02-01 17:27:15 +01:00
virt
KVM: avoid NULL pointer dereference in kvm_dirty_ring_push
2022-04-13 20:59:26 +02:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: add Andrej Shadura
2021-10-18 20:22:03 -10:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
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
MAINTAINERS: adjust file entry for of_net.c after movement
2022-03-08 19:12:53 +01:00
Makefile
Linux 5.15.36
2022-04-27 14:39:02 +02:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
Description
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