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Chao Yu 04a495780f f2fs: enforce the immutable flag on open files 
commit e0fcd01510ad025c9bbce704c5c2579294056141 upstream.

This patch ports commit 02b016ca7f ("ext4: enforce the immutable
flag on open files") to f2fs.

According to the chattr man page, "a file with the 'i' attribute
cannot be modified..."  Historically, this was only enforced when the
file was opened, per the rest of the description, "... and the file
can not be opened in write mode".

There is general agreement that we should standardize all file systems
to prevent modifications even for files that were opened at the time
the immutable flag is set.  Eventually, a change to enforce this at
the VFS layer should be landing in mainline.

Cc: stable@kernel.org
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:43 +01:00
arch um: defer killing userspace on page table update failures 2021-03-04 11:38:42 +01:00
block blk-settings: align max_sectors on "logical_block_size" boundary 2021-03-04 11:38:22 +01:00
certs certs: Fix blacklist flag type confusion 2021-03-04 11:37:59 +01:00
crypto crypto: michael_mic - fix broken misalignment handling 2021-03-04 11:38:31 +01:00
Documentation mm/vmscan: restore zone_reclaim_mode ABI 2021-03-04 11:38:38 +01:00
drivers irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap 2021-03-04 11:38:42 +01:00
fs f2fs: enforce the immutable flag on open files 2021-03-04 11:38:43 +01:00
include kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE 2021-03-04 11:38:41 +01:00
init kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE 2021-03-04 11:38:41 +01:00
ipc
kernel kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE 2021-03-04 11:38:41 +01:00
lib udp: fix skb_copy_and_csum_datagram with odd segment sizes 2021-02-17 11:02:28 +01:00
LICENSES
mm mm, compaction: make fast_isolate_freepages() stay within zone 2021-03-04 11:38:38 +01:00
net svcrdma: Hold private mutex while invoking rdma_accept() 2021-03-04 11:38:08 +01:00
samples watch_queue: Drop references to /dev/watch_queue 2021-03-04 11:37:59 +01:00
scripts scripts/recordmcount.pl: support big endian for ARCH sh 2021-02-26 10:13:02 +01:00
security KEYS: trusted: Reserve TPM for seal and unseal operations 2021-03-04 11:38:29 +01:00
sound ASoC: siu: Fix build error by a wrong const prefix 2021-03-04 11:38:28 +01:00
tools kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE 2021-03-04 11:38:41 +01:00
usr
virt KVM: Use kvm_pfn_t for local PFN variable in hva_to_pfn_remapped() 2021-02-26 10:13:01 +01:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
Kbuild
Kconfig
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-12-10 15:30:13 -08:00
Makefile Linux 5.10.19 2021-02-26 10:14:35 +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.