Tim Chen 423e0ab086 VFS : mount lock scalability for internal mounts ... For a number of file systems that don't have a mount point (e.g. sockfs and pipefs), they are not marked as long term. Therefore in mntput_no_expire, all locks in vfs_mount lock are taken instead of just local cpu's lock to aggregate reference counts when we release reference to file objects. In fact, only local lock need to have been taken to update ref counts as these file systems are in no danger of going away until we are ready to unregister them. The attached patch marks file systems using kern_mount without mount point as long term. The contentions of vfs_mount lock is now eliminated. Before un-registering such file system, kern_unmount should be called to remove the long term flag and make the mount point ready to be freed. Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2011-07-24 10:08:32 -04:00
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accessibility	…
acpi	Merge branches 'd3cold', 'bugzilla-37412' and 'bugzilla-38152' into release	2011-07-14 00:16:38 -04:00
amba	…
ata	…
atm	…
auxdisplay	…
base	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
bcma	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem	2011-07-15 10:05:24 -04:00
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
bluetooth	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem	2011-07-15 10:05:24 -04:00
cdrom	…
char	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
clk	…
clocksource	…
connector	Merge branch 'ptrace' of git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc	2011-07-22 15:06:50 -07:00
cpufreq	…
cpuidle	…
crypto	…
dca	…
dio	…
dma	Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6	2011-07-22 14:52:44 -07:00
edac	…
eisa	…
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2011-07-22 14:49:48 -07:00
firmware	…
gpio	Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6	2011-07-22 14:50:57 -07:00
gpu	Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6	2011-07-21 11:07:18 -07:00
hid	Merge branches 'roccat', 'upstream' and 'wiimote' into for-linus	2011-07-22 22:47:08 +02:00
hwmon	hwmon: (max1111) Fix race condition causing NULL pointer exception	2011-07-17 18:39:19 +02:00
hwspinlock	…
i2c	…
ide	…
idle	…
ieee802154	…
infiniband	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2011-07-22 14:50:12 -07:00
input	Merge branch 'timers-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:51:56 -07:00
iommu	…
isdn	net: Push protocol type directly down to header_ops->cache()	2011-07-13 02:29:59 -07:00
leds	Merge branch 'gpio/next' of git://git.secretlab.ca/git/linux-2.6	2011-07-22 14:50:57 -07:00
lguest	lguest: Fix in/out emulation	2011-07-22 14:39:51 +09:30
macintosh	drivers: fix up various ->llseek() implementations	2011-07-20 20:47:58 -04:00
mca	…
md	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
media	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2011-07-21 13:38:42 -07:00
memstick	…
message	…
mfd	…
misc	…
mmc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2011-07-22 14:43:13 -07:00
mtd	VFS : mount lock scalability for internal mounts	2011-07-24 10:08:32 -04:00
net	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband	2011-07-22 14:50:12 -07:00
nfc	…
nubus	…
of	Merge branch 'of-pci' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2011-07-22 14:54:02 -07:00
oprofile	perf: Remove the nmi parameter from the oprofile_perf backend	2011-07-21 20:41:58 +02:00
parisc	…
parport	…
pci	Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:39:42 -07:00
pcmcia	…
platform	…
pnp	…
power	…
pps	…
ps3	…
ptp	…
rapidio	…
regulator	…
rtc	Merge branch 'timers-rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:52:39 -07:00
s390	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6	2011-07-22 16:01:57 -07:00
sbus	…
scsi	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:44:08 -07:00
sfi	…
sh	switch assorted clock drivers to debugfs_remove_recursive()	2011-07-20 20:47:51 -04:00
sn	…
spi	Merge branch 'spi/next' of git://git.secretlab.ca/git/linux-2.6	2011-07-22 14:52:44 -07:00
ssb	Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6	2011-07-14 07:56:40 -07:00
staging	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
target	target: remove custom hex2bin() implementation	2011-07-22 09:37:49 +00:00
tc	…
telephony	…
thermal	…
tty	Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6	2011-07-22 14:53:38 -07:00
uio	…
usb	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2011-07-22 19:02:39 -07:00
uwb	…
vhost	vhost: handle wrap around in # of bufs math	2011-07-21 10:48:27 +03:00
video	fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers	2011-07-20 20:47:59 -04:00
virtio	…
vlynq	…
w1	…
watchdog	watchdog: hpwdt depends on PCI	2011-07-17 12:40:08 +00:00
xen	Merge branch 'stable/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2011-07-22 13:45:15 -07:00
zorro	…
Kconfig	Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:39:42 -07:00
Makefile	Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-07-22 16:39:42 -07:00