Eric Biggers 14e43bf435 vfs: don't unnecessarily clone write access for writable fds ... There's no need for mnt_want_write_file() to increment mnt_writers when the file is already open for writing, provided that mnt_drop_write_file() is changed to conditionally decrement it. We seem to have ended up in the current situation because mnt_want_write_file() used to be paired with mnt_drop_write(), due to mnt_drop_write_file() not having been added yet. So originally mnt_want_write_file() had to always increment mnt_writers. But later mnt_drop_write_file() was added, and all callers of mnt_want_write_file() were paired with it. This makes the compatibility between mnt_want_write_file() and mnt_drop_write() no longer necessary. Therefore, make __mnt_want_write_file() and __mnt_drop_write_file() skip incrementing mnt_writers on files already open for writing. This removes the only caller of mnt_clone_write(), so remove that too. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2021-01-04 14:02:08 -05:00
..
ABI	More power management updates for 5.11-rc1	2020-12-22 14:12:10 -08:00
accounting
admin-guide	A small set of late-arriving, small documentation fixes.	2020-12-24 14:20:33 -08:00
arm	ARM updates for 5.11:	2020-12-22 13:34:27 -08:00
arm64	ARM:	2020-12-20 10:44:05 -08:00
block
bpf
cdrom
core-api	Generic interrupt and irqchips subsystem:	2020-12-15 15:03:31 -08:00
cpu-freq
crypto
dev-tools	Merge branch 'akpm' (patches from Andrew)	2020-12-22 13:38:17 -08:00
devicetree	Devicetree fixes for v5.11, take 1:	2020-12-24 12:09:48 -08:00
doc-guide	kernel-doc: Fix example in Nested structs/unions	2020-12-08 10:23:17 -07:00
driver-api	RTC for 5.11	2020-12-20 10:12:06 -08:00
fault-injection
fb
features	ARM updates for 5.11:	2020-12-22 13:34:27 -08:00
filesystems	vfs: don't unnecessarily clone write access for writable fds	2021-01-04 14:02:08 -05:00
firmware_class
firmware-guide	Documentation: ACPI: enumeration: add PCI hierarchy representation	2020-11-23 17:59:49 +01:00
fpga
gpu	drm/docs: Fix todo.rst	2020-11-18 11:51:58 +01:00
hid	Merge branch 'for-5.11/core' into for-linus	2020-12-16 11:38:38 +01:00
hwmon	hwmon: (sbtsi) Add documentation	2020-12-12 08:34:29 -08:00
i2c
ia64	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
ide
iio
infiniband
input	Input: document inhibiting	2020-12-02 22:10:37 -08:00
isdn
kbuild	Kconfig updates for v5.11	2020-12-22 14:04:25 -08:00
kernel-hacking
leds	Changes for 5.11-rc1. Small cleanups/fixes mostly thanks to Marek,	2020-12-16 14:56:29 -08:00
litmus-tests
livepatch
locking	Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g	2020-12-09 17:08:49 +01:00
m68k	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
maintainer
mhi
mips	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
misc-devices
netlabel
networking	ARM: SoC drivers for v5.11	2020-12-16 16:38:41 -08:00
nios2	docs: nios2: add missing ReST file	2020-12-07 08:35:21 -07:00
nvdimm
openrisc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
parisc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
PCI
pcmcia
power
powerpc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
process	A small set of late-arriving, small documentation fixes.	2020-12-24 14:20:33 -08:00
RCU
riscv	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
s390	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
scheduler	Power management updates for 5.11-rc1	2020-12-15 16:30:31 -08:00
scsi
security
sh	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
sound	ALSA: usb-audio: Add implicit_fb module option	2020-11-23 15:17:24 +01:00
sparc	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
sphinx	Kbuild updates for v5.11	2020-12-22 14:02:39 -08:00
sphinx-static
spi
staging
target	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
timers
trace	Kbuild updates for v5.11	2020-12-22 14:02:39 -08:00
translations	Networking updates for 5.11	2020-12-15 13:22:29 -08:00
usb
userspace-api	"Intel SGX is new hardware functionality that can be used by	2020-12-14 13:14:57 -08:00
virt	ARM:	2020-12-20 10:44:05 -08:00
vm	mm/lru: revise the comments of lru_lock	2020-12-15 14:48:04 -08:00
w1	w1: w1_therm: Rename conflicting sysfs attribute 'eeprom' to 'eeprom_cmd'	2020-11-12 08:50:13 +01:00
watchdog
x86	A much quieter cycle for documentation (happily), with, one hopes, the bulk	2020-12-14 16:55:54 -08:00
xtensa	A much quieter cycle for documentation (happily), with, one hopes, the bulk	2020-12-14 16:55:54 -08:00
.gitignore
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	docs: Note that sphinx 1.7 will be required soon	2020-12-11 13:53:38 -07:00
COPYING-logo
docutils.conf
dontdiff
index.rst	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
Kconfig
logo.gif
Makefile
memory-barriers.txt
SubmittingPatches
watch_queue.rst