kevin/linux
1
Fork 0
Code
72626685dc
linux/drivers
History
NeilBrown 72626685dc [PATCH] md: add write-intent-bitmap support to raid5 
Most awkward part of this is delaying write requests until bitmap updates have
been flushed.

To achieve this, we have a sequence number (seq_flush) which is incremented
each time the raid5 is unplugged.

If the raid thread notices that this has changed, it flushes bitmap changes,
and assigned the value of seq_flush to seq_write.

When a write request arrives, it is given the number from seq_write, and that
write request may not complete until seq_flush is larger than the saved seq
number.

We have a new queue for storing stripes which are waiting for a bitmap flush
and an extra flag for stripes to record if the write was 'degraded' and so
should not clear the a bit in the bitmap.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 16:39:12 -07:00
..
acorn [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
acpi [PATCH] Fix CONFIG_ACPI_BLACKLIST_YEAR 2005-09-09 10:45:35 -07:00
atm [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
base [SCSI] Re-do "final klist fixes" 2005-09-07 18:44:33 -07:00
block [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
bluetooth [Bluetooth]: Move packet type into the SKB control buffer 2005-08-29 15:55:13 -07:00
cdrom [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
char [PATCH] trivial __user annotations (ipmi) 2005-09-09 14:05:54 -07:00
cpufreq [CPUFREQ] Bugfix: Call driver exit in cpufreq_add_dev error path 2005-08-31 22:21:28 -07:00
crypto
dio
eisa
fc4 [SCSI] fc4 warning fix 2005-07-30 09:47:53 -05:00
firmware [PATCH] dcdbas: add Dell Systems Management Base Driver with sysfs support 2005-09-07 16:57:27 -07:00
hwmon [PATCH] hwmon: (3/3) pc87360 driver update 2005-09-05 09:26:55 -07:00
i2c Merge master.kernel.org:/home/rmk/linux-2.6-i2c manually 2005-09-08 15:43:09 -07:00
ide [PATCH] pcmcia: more IDs for ide_cs 2005-09-09 13:57:48 -07:00
ieee1394 [PATCH] trivial __user cleanup (video1394) 2005-09-09 14:05:54 -07:00
infiniband [PATCH] PCI: remove CONFIG_PCI_NAMES 2005-09-08 14:57:23 -07:00
input [PATCH] trivial __user annotations (evdev) 2005-09-09 14:05:54 -07:00
isdn [PATCH] -Wundef fixes (hisax) 2005-09-07 17:17:33 -07:00
macintosh [PATCH] swsusp: switch pm_message_t to struct 2005-09-05 00:06:16 -07:00
mca
md [PATCH] md: add write-intent-bitmap support to raid5 2005-09-09 16:39:12 -07:00
media [PATCH] v4l: tveeprom improved to support newer Hauppage cards 2005-09-09 13:57:54 -07:00
message Merge by hand (conflicts in sd.c) 2005-09-06 17:52:54 -05:00
mfd [MFD] Add SA11x0 MCP platform device support 2005-08-18 10:10:46 +01:00
misc [SERIAL] Update ibmasm driver for death of register_serial&co 2005-09-07 21:37:00 +01:00
mmc [MMC] Add mmc_detect_change() delay support for PXAMCI driver 2005-09-08 22:48:16 +01:00
mtd [PATCH] detect soft lockups 2005-09-07 16:57:17 -07:00
net [PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversions 2005-09-09 14:03:48 -07:00
nubus
oprofile [PATCH] clean up inline static vs static inline 2005-07-27 16:26:20 -07:00
parisc [PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversions 2005-09-09 14:03:48 -07:00
parport [PATCH] PCI: remove pci_find_device from parport_pc.c 2005-09-08 14:57:25 -07:00
pci Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 2005-09-09 15:17:00 -07:00
pcmcia [PATCH] pcmcia: add pcmcia to IRQ information 2005-09-09 13:57:48 -07:00
pnp Merge linux-2.6 with linux-acpi-2.6 2005-09-08 01:45:47 -04:00
s390 [PATCH] s390: claw driver fixes 2005-09-06 22:15:20 -04:00
sbus [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
scsi [PATCH] trivial iomem annotations in qla2xxx/qla_dbg.c 2005-09-09 14:05:54 -07:00
serial [PATCH] txx9 serial update 2005-09-09 13:57:27 -07:00
sh
sn
tc
telephony
usb [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
video [PATCH] more SPIN_LOCK_UNLOCKED -> DEFINE_SPINLOCK conversions 2005-09-09 14:03:48 -07:00
w1 [PATCH] w1_ds2433: Added crc16 protection and read caching. 2005-09-08 14:41:27 -07:00
zorro
Kconfig [MFD] Add multimedia communication port core support 2005-08-18 10:06:59 +01:00
Makefile Auto-update from upstream 2005-08-29 17:02:17 -04:00