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Filename Latest commit message Latest commit date
Tang Junhui bb22cafd75 bcache: add a comment in journal bucket reading 
Journal bucket is a circular buffer, the bucket
can be like YYYNNNYY, which means the first valid journal in
the 7th bucket, and the latest valid journal in third bucket, in
this case, if we do not try we the zero index first, We
may get a valid journal in the 7th bucket, then we call
find_next_bit(bitmap,ca->sb.njournal_buckets, l + 1) to get the
first invalid bucket after the 7th bucket, because all these
buckets is valid, so no bit 1 in bitmap, thus find_next_bit()
function would return with ca->sb.njournal_buckets (8). So, after
that, bcache only read journal in 7th and 8the bucket,
the first to the third buckets are lost.

So, it is important to let developer know that, we need to try
the zero index at first in the hash-search, and avoid any breaks
in future's code modification.

[ML: Fixed whitespace & formatting & file permissions]

Signed-off-by: Tang Junhui <tang.junhui@zte.com.cn>
Signed-off-by: Michael Lyle <mlyle@lyle.org>
Reviewed-by: Michael Lyle <mlyle@lyle.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-11-24 16:22:55 -07:00
..
accessibility
acpi ACPI fix for v4.15-rc1 2017-11-17 14:51:24 -08:00
amba A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
android Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
ata Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 2017-11-15 14:11:41 -08:00
atm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
auxdisplay Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
base Two power management fixes for v4.15-rc1 2017-11-17 14:49:25 -08:00
bcma Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
block null_blk: fix dev->badblocks leak 2017-11-22 08:43:11 -07:00
bluetooth
bus ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
cdrom Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
char Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
clk We have two changes to the core framework this time around. The first being a 2017-11-17 20:04:24 -08:00
clocksource First batch of KVM changes for 4.15 2017-11-16 13:00:24 -08:00
connector
cpufreq Power management updates for v4.15-rc1 2017-11-13 19:43:50 -08:00
cpuidle powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
crypto powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
dax libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
dca
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2017-11-13 01:41:39 +01:00
dio
dma dmaengine updates for 4.15-rc1 2017-11-14 16:49:31 -08:00
dma-buf Tracing updates for 4.15: 2017-11-17 14:58:01 -08:00
edac Modules updates for v4.15 2017-11-15 13:46:33 -08:00
eisa
extcon USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
firewire Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
firmware remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
fmc
fpga Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
fsi
gpio This is the bulk of pin control changes for the v4.15 2017-11-16 10:57:11 -08:00
gpu amdgpu DC display code for Vega. 2017-11-17 14:34:42 -08:00
hid Modules updates for v4.15 2017-11-15 13:46:33 -08:00
hsi HSI changes for the v4.15 series 2017-11-15 13:35:43 -08:00
hv Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
hwmon hwmon: (w83793) Remove duplicate NULL check 2017-11-16 01:03:19 -08:00
hwspinlock hwspinlock update for v4.15 2017-11-17 20:16:20 -08:00
hwtracing Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
i2c Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
ide Merge branch 'for-linus' of git://git.kernel.dk/linux-block 2017-11-17 10:56:56 -08:00
idle Merge branch 'pm-cpuidle' 2017-11-13 01:34:14 +01:00
iio A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
infiniband Driver core patches for 4.15-rc1 2017-11-16 08:55:30 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2017-11-14 18:07:18 -08:00
iommu IOMMU Updates for Linux v4.15 2017-11-14 16:43:27 -08:00
ipack
irqchip ARM: SoC platform updates for 4.15 2017-11-16 14:05:12 -08:00
isdn isdn: hisax: Fix pnp_irq's error checking for setup_teles3 2017-11-16 22:31:16 +09:00
leds LED updates for 4.15rc1 2017-11-14 18:09:31 -08:00
lightnvm Merge branch 'for-4.15/block' of git://git.kernel.dk/linux-block 2017-11-14 15:32:19 -08:00
macintosh Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
mailbox Change to POLL api and fixes for FlexRM and OMAP driver 2017-11-15 13:39:18 -08:00
mcb
md bcache: add a comment in journal bucket reading 2017-11-24 16:22:55 -07:00
media AFS development 2017-11-16 11:41:22 -08:00
memory ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
memstick Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
message Modules updates for v4.15 2017-11-15 13:46:33 -08:00
mfd - New Drivers 2017-11-16 09:15:57 -08:00
misc lkdtm: include WARN format string 2017-11-17 16:10:01 -08:00
mmc MMC core: 2017-11-13 10:17:35 -08:00
mtd Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
mux
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-17 20:18:37 -08:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-11-15 11:56:19 -08:00
ntb
nubus m68k updates for 4.15 2017-11-13 12:10:24 -08:00
nvdimm libnvdimm for 4.15 2017-11-17 09:51:57 -08:00
nvme nvme-fc: don't use bit masks for set/test_bit() numbers 2017-11-24 10:12:33 -07:00
nvmem Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
of ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
opp
oprofile
parisc
parport Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
pci pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pcmcia drivers/pcmcia/sa1111_badge4.c: avoid unused function warning 2017-11-17 16:10:04 -08:00
perf arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
phy USB/PHY patches for 4.15-rc1 2017-11-13 21:14:07 -08:00
pinctrl This is the bulk of pin control changes for the v4.15 2017-11-16 10:57:11 -08:00
platform clean up x86 platform driver default values 2017-11-18 12:09:51 -08:00
pnp
power power supply and reset changes for the v4.15 series 2017-11-15 13:37:15 -08:00
powercap
pps
ps3
ptp xen: features and fixes for v4.15-rc1 2017-11-16 13:06:27 -08:00
pwm
rapidio Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
ras Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
regulator - New Drivers 2017-11-16 09:15:57 -08:00
remoteproc remoteproc updates for v4.15 2017-11-17 20:14:10 -08:00
reset ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
rpmsg rpmsg updates for v4.15 2017-11-17 20:12:08 -08:00
rtc Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-13 17:56:58 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-17 14:23:52 -08:00
sbus Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2017-11-17 20:21:44 -08:00
scsi Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:38:51 -08:00
sfi
sh A couple of dma-mapping updates: 2017-11-14 16:54:12 -08:00
sn
soc ARM: SoC driver updates for v4.15 2017-11-16 16:05:01 -08:00
spi
spmi
ssb
staging Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:38:51 -08:00
target A couple of configfs cleanups: 2017-11-14 14:44:04 -08:00
tc
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2017-11-17 14:31:27 -08:00
thunderbolt Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
tty Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
uio
usb sound updates for 4.15-rc1 2017-11-14 18:01:46 -08:00
uwb
vfio VFIO Updates for Linux v4.15 2017-11-14 16:47:47 -08:00
vhost Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:08:18 -08:00
video Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:38:51 -08:00
virt
virtio virtio_balloon: fix deadlock on OOM 2017-11-14 23:57:38 +02:00
vlynq
vme Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
w1 Char/Misc patches for 4.15-rc1 2017-11-16 09:10:59 -08:00
watchdog drivers/watchdog: make use of devm_register_reboot_notifier() 2017-11-17 16:10:04 -08:00
xen Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:08:18 -08:00
zorro
Kconfig Merge branches 'pm-cpufreq-sched' and 'pm-opp' 2017-11-13 01:40:52 +01:00
Makefile Merge branches 'pm-cpufreq-sched' and 'pm-opp' 2017-11-13 01:40:52 +01:00