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
PCI	…
RCU	docs/rcu: Update the call_rcu() API	2020-11-06 17:02:43 -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	block-5.10-2020-10-24	2020-10-24 12:46:42 -07:00
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	A handful of late-arriving documentation fixes.	2020-10-23 17:13:53 -07:00
fb	drm fixes (round two) for 5.10-rc1	2020-10-23 13:56:34 -07:00
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-guide	Documentation: ACPI: enumeration: add PCI hierarchy representation	2020-11-23 17:59:49 +01:00
firmware_class	…
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	Documentation: remove mic/index from misc-devices/index.rst	2020-11-04 11:38:32 +01:00
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
pcmcia	…
power	PM: EM: Update Energy Model with new flag indicating power scale	2020-11-10 20:29:28 +01:00
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
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	…
COPYING-logo	…
Changes	…
CodingStyle	…
Kconfig	docs: Kconfig/Makefile: add a check for broken ABI files	2020-10-30 13:08:07 +01:00
Makefile	A small number of fixes, plus a build tweak to respect the desire for	2020-11-03 09:57:30 -08:00
SubmittingPatches	…
asm-annotations.rst	…
atomic_bitops.txt	…
atomic_t.txt	…
conf.py	docs: Note that sphinx 1.7 will be required soon	2020-12-11 13:53:38 -07:00
docutils.conf	…
dontdiff	…
index.rst	docs: archis: add a per-architecture features list	2020-12-03 15:10:15 -07:00
logo.gif	…
memory-barriers.txt	docs/memory-barriers.txt: Fix a typo in CPU MEMORY BARRIERS section	2020-11-06 17:24:51 -08:00
watch_queue.rst	…