linux/drivers
Kent Overstreet 0a63b66db5 bcache: Rework btree cache reserve handling
This changes the bucket allocation reserves to use _real_ reserves - separate
freelists - instead of watermarks, which if nothing else makes the current code
saner to reason about and is going to be important in the future when we add
support for multiple btrees.

It also adds btree_check_reserve(), which checks (and locks) the reserves for
both bucket allocation and memory allocation for btree nodes; the old code just
kinda sorta assumed that since (e.g. for btree node splits) it had the root
locked and that meant no other threads could try to make use of the same
reserve; this technically should have been ok for memory allocation (we should
always have a reserve for memory allocation (the btree node cache is used as a
reserve and we preallocate it)), but multiple btrees will mean that locking the
root won't be sufficient anymore, and for the bucket allocation reserve it was
technically possible for the old code to deadlock.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
2014-03-18 12:23:35 -07:00
..
accessibility
acpi Merge branches 'acpi-dock', 'acpi-scan' and 'acpi-pci-hotplug' 2014-02-12 14:56:58 +01:00
amba
ata ata: sata_mv: Fix probe failures with optional phys 2014-02-05 05:48:58 +00:00
atm
auxdisplay
base drivers/base: fix devres handling for master device 2014-02-07 16:45:14 -08:00
bcma Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-01-30 17:20:32 -08:00
block Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2014-02-14 10:45:18 -08:00
bluetooth
bus drivers: bus: fix CCI driver kcalloc call parameters swap 2014-01-31 15:15:13 -08:00
cdrom Merge branch 'for-3.14/drivers' of git://git.kernel.dk/linux-block 2014-01-30 11:40:10 -08:00
char Char/Misc fixes for 3.14-rc3 2014-02-14 16:13:00 -08:00
clk The second half of the clock framework pull requeust for 3.14 is 2014-01-28 18:44:53 -08:00
clocksource clocksource: Kona: Print warning rather than panic 2014-02-06 16:01:40 +01:00
connector
cpufreq intel_pstate: Remove energy reporting from pstate_sample tracepoint 2014-02-13 02:11:18 +01:00
cpuidle powerpc/powernv/cpuidle: Back-end cpuidle driver for powernv platform. 2014-01-29 17:02:24 +11:00
crypto crypto/nx/nx-842: Fix handling of vmalloc addresses 2014-02-11 11:24:49 +11:00
dca
devfreq Merge branches 'pm-cpufreq' and 'pm-devfreq' 2014-01-29 11:48:23 +01:00
dio
dma dma: mv_xor: Silence a bunch of LPAE-related warnings 2014-02-12 16:21:17 -08:00
edac EDAC: Correct workqueue setup path 2014-02-14 10:40:47 +01:00
eisa Revert "EISA: Initialize device before its resources" 2014-01-17 14:57:29 -07:00
extcon
firewire firewire: Enable remote DMA above 4 GB 2014-01-20 01:11:13 +01:00
firmware firmware/google: drop 'select EFI' to avoid recursive dependency 2014-01-27 21:02:40 -08:00
fmc
gpio gpio: tb10x: GPIO_TB10X needs to select GENERIC_IRQ_CHIP 2014-02-05 11:13:59 +01:00
gpu Merge branch 'tda998x-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next 2014-02-12 09:51:51 +10:00
hid Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2014-01-31 09:31:14 -08:00
hsi
hv Drivers: hv: vmbus: Don't timeout during the initial connection with host 2014-02-07 08:27:34 -08:00
hwmon hwmon: (ntc_thermistor) Avoid math overflow 2014-02-13 19:43:52 -08:00
hwspinlock
i2c i2c: mv64xxx: refactor message start to ensure proper initialization 2014-02-15 15:42:31 +01:00
ide drivers: ide: Include appropriate header file in ide-pio-blacklist.c 2014-01-28 23:35:09 -08:00
idle ACPI and power management updates for 3.14-rc1 2014-01-24 15:51:02 -08:00
iio iio: max1363: Use devm_regulator_get_optional for optional regulator 2014-02-08 11:46:00 +00:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-02-15 16:18:47 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-01-24 17:17:30 -08:00
iommu IOMMU Updates for Linux v3.14 2014-01-29 20:00:13 -08:00
ipack
irqchip Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-02-05 16:02:53 -08:00
isdn isdn/hisax: hex vs decimal typo in prfeatureind() 2014-02-06 21:18:06 -08:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-01-28 18:53:01 -08:00
lguest
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-27 21:11:26 -08:00
mailbox drivers/mailbox/omap: make mbox->irq signed for error handling 2014-01-23 16:36:53 -08:00
md bcache: Rework btree cache reserve handling 2014-03-18 12:23:35 -07:00
media [media] adv7842: Composite free-run platfrom-data fix 2014-02-04 06:46:10 -02:00
memory
memstick drivers/memstick/host/rtsx_pci_ms.c: fix ms card data transfer bug 2014-01-23 16:37:04 -08:00
message drivers/message/i2o/i2o_config.c: fix deadlock in compat_ioctl(I2OGETIOPS) 2014-02-10 16:01:40 -08:00
mfd regulator: Updates for v3.14 2014-01-25 13:19:10 -08:00
misc Char/Misc fixes for 3.14-rc3 2014-02-14 16:13:00 -08:00
mmc MMC highlights for 3.14: 2014-01-26 11:00:41 -08:00
mtd * Improve the NOR erasure quirk - now it tries to do as little writes as 2014-01-30 20:04:09 -08:00
net RDMA/InfiniBand fixes for 3.14-rc3: 2014-02-14 10:33:45 -08:00
nfc
ntb
nubus
of of: search the best compatible match first in __of_match_node() 2014-02-15 18:51:17 -06:00
oprofile
parisc
parport TTY/Serial driver patches for 3.14-rc1 2014-01-20 16:05:23 -08:00
pci ACPI / hotplug / PCI: Relax the checking of _STA return values 2014-02-12 12:45:57 +01:00
pcmcia PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
phy drivers: phy: Add support for optional phys 2014-02-05 05:48:43 +00:00
pinctrl pinctrl: tegra: return correct error type 2014-02-06 14:21:19 +01:00
platform platform/chrome: Cleanups and improvements 2014-01-29 20:06:01 -08:00
pnp
power Few fixes: 2014-02-14 10:32:28 -08:00
powercap
pps
ps3
ptp ptp_pch: Add dependency on HAS_IOMEM 2014-01-15 14:51:22 -08:00
pwm pwm: Changes for v3.14-rc1 2014-01-27 08:15:51 -08:00
rapidio
regulator Merge remote-tracking branches 'regulator/fix/da9055' and 'regulator/fix/max14577' into regulator-linus 2014-02-12 11:47:33 +00:00
remoteproc
reset
rpmsg
rtc Merge branch 'akpm' (incoming from Andrew) 2014-01-23 19:11:50 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-02-11 12:23:50 -08:00
sbus sparc: delete non-required instances of include <linux/init.h> 2014-01-28 23:38:23 -08:00
scsi qla2xxx: Remove last vestiges of qla_tgt_cmd.cmd_list 2014-02-12 15:11:03 -08:00
sfi
sh
sn
spi Merge remote-tracking branches 'spi/fix/doc', 'spi/fix/nuc900' and 'spi/fix/rspi' into spi-linus 2014-02-11 12:08:27 +00:00
ssb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-01-30 17:20:32 -08:00
staging Staging driver fixes for 3.14-rc3 2014-02-14 16:14:11 -08:00
target Target/sbc: Fix protection copy routine 2014-02-12 15:14:45 -08:00
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-01-24 17:13:49 -08:00
tty vt: Fix secure clear screen 2014-02-13 11:12:00 -08:00
uio
usb usb: option: blacklist ZTE MF667 net interface 2014-02-11 15:33:54 -08:00
uwb
vfio Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2014-01-27 21:11:26 -08:00
vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
video video: Kconfig: Allow more broad selection of the imxfb framebuffer driver. 2014-02-14 10:44:52 +02:00
virt
virtio A few simple fixes. Quiet cycle. 2014-01-22 22:24:35 -08:00
vlynq drivers/vlynq/vlynq.c: fix another resource size off by 1 error 2014-01-23 16:36:55 -08:00
vme VME: Correct read/write alignment algorithm 2014-02-07 08:16:14 -08:00
w1 drivers/w1/masters/w1-gpio.c: add strong pullup emulation 2014-01-23 16:37:04 -08:00
watchdog watchdog: dw_wdt: Add dependency on HAS_IOMEM 2014-02-08 09:47:11 +01:00
xen Bug-fix: 2014-02-12 12:28:05 -08:00
zorro
Kconfig
Makefile