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Jens Axboe b31dc66a54 [PATCH] Kill PF_SYNCWRITE flag 
A process flag to indicate whether we are doing sync io is incredibly
ugly. It also causes performance problems when one does a lot of async
io and then proceeds to sync it. Part of the io will go out as async,
and the other part as sync. This causes a disconnect between the
previously submitted io and the synced io. For io schedulers such as CFQ,
this will cause us lost merges and suboptimal behaviour in scheduling.

Remove PF_SYNCWRITE completely from the fsync/msync paths, and let
the O_DIRECT path just directly indicate that the writes are sync
by using WRITE_SYNC instead.

Signed-off-by: Jens Axboe <axboe@suse.de>
 		2006-06-23 17:10:39 +02:00
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acorn
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acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-06-23 07:52:36 -07:00
amba
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atm [SPARC]: Kill __irq_itoa(). 2006-06-20 01:21:29 -07:00
base [PATCH] Driver core: fix locking issues with the devices that are attached to classes 2006-06-22 22:54:30 -07:00
block [PATCH] drivers/block/loop.c: don't return garbage if LOOP_SET_STATUS not called 2006-06-23 07:43:09 -07:00
bluetooth [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
cdrom Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
char Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2006-06-23 07:52:36 -07:00
connector [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
cpufreq [CPUFREQ] Fix ondemand vs suspend deadlock 2006-06-21 18:30:26 -04:00
crypto [CRYPTO] api: Align tfm context as wide as possible 2006-03-21 20:14:08 +11:00
dio [PATCH] hp300: fix driver_register() return handling, remove dio_module_init() 2006-03-25 08:22:53 -08:00
dma [I/OAT]: Do not use for_each_cpu(). 2006-06-17 21:25:58 -07:00
edac [PATCH] EDAC Coexistence with BIOS 2006-05-03 20:05:41 -07:00
eisa [PATCH] EISA: Ignore generated file drivers/eisa/devlist.h 2006-03-25 08:23:01 -08:00
fc4 [SPARC]: Kill __irq_itoa(). 2006-06-20 01:21:29 -07:00
firmware [PATCH] DMI: move dmi_scan.c from arch/i386 to drivers/firmware/ 2006-04-14 11:41:25 -07:00
hwmon [PATCH] hwmon-vid: Add support for Intel Core and Conroe 2006-06-22 11:10:36 -07:00
i2c Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2006-06-22 22:11:30 -07:00
ide [PATCH] More BUG_ON conversion 2006-06-23 07:43:08 -07:00
ieee1394 [PATCH] frv: ieee1394 is borken on frv 2006-06-23 07:42:55 -07:00
infiniband [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
input [PATCH] vfs: add lock owner argument to flush operation 2006-06-23 07:43:02 -07:00
isdn [PATCH] ISDN: correctly handle isdn_writebuf_stub() errors 2006-06-23 07:43:04 -07:00
leds [PATCH] leds: Amstrad Delta LED support 2006-06-23 07:43:05 -07:00
macintosh [PATCH] m68k: windfarm is powerpc-only, don't do it on m68k macs 2006-06-23 07:43:01 -07:00
mca
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md [PATCH] drivers/md/raid6algos.c: fix a NULL dereference 2006-06-23 07:43:08 -07:00
media [PATCH] USB: move <linux/usb_input.h> to <linux/usb/input.h> 2006-06-21 15:04:18 -07:00
message Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2006-06-21 11:18:25 -07:00
mfd [PATCH] show MCP menu only on ARCH_SA1100 2006-03-24 07:33:28 -08:00
misc [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
mmc [ARM] 3565/1: AT91RM9200 MMC update 2006-06-19 13:06:05 +01:00
mtd [MTD] NAND: Fix breakage all over the place 2006-06-20 20:31:24 +01:00
net [NET]: Require CAP_NET_ADMIN to create tuntap devices. 2006-06-23 02:07:44 -07:00
nubus
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oprofile [PATCH] VFS: Permit filesystem to override root dentry on mount 2006-06-23 07:42:45 -07:00
parisc [PARISC] Document that we tolerate "Relaxed Ordering" 2006-04-21 22:20:33 +00:00
parport [PATCH] Remove CONFIG_PARPORT_ARC, drivers/parport/parport_arc.c 2006-06-23 07:43:03 -07:00
pci [PATCH] PCI: nVidia quirk to make AER PCI-E extended capability visible 2006-06-21 12:00:01 -07:00
pcmcia [ARM] Fix badge4 build error 2006-06-19 15:37:31 +01:00
pnp Pull pnpacpi into release branch 2006-06-15 15:36:43 -04:00
rapidio
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rtc [PATCH] m48t86: ia64 build fix 2006-06-05 12:29:17 -07:00
s390 [NET]: Merge TSO/UFO fields in sk_buff 2006-06-23 02:07:29 -07:00
sbus [SPARC]: Kill __irq_itoa(). 2006-06-20 01:21:29 -07:00
scsi [PATCH] More BUG_ON conversion 2006-06-23 07:43:08 -07:00
serial [PATCH] SGI IOC4: Detect IO card variant 2006-06-23 07:43:07 -07:00
sh
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sn [PATCH] SGI IOC4: Detect IO card variant 2006-06-23 07:43:07 -07:00
spi [PATCH] s3c24xx: fix spi driver with CONFIG_PM 2006-05-26 11:55:46 -07:00
tc [PATCH] kill _INLINE_ 2006-03-23 07:38:16 -08:00
telephony [PATCH] pcmcia: use bitfield instead of p_state and state 2006-03-31 17:26:33 +02:00
usb [PATCH] Kill PF_SYNCWRITE flag 2006-06-23 17:10:39 +02:00
video [PATCH] m68k: atyfb_base compile fix for CONFIG_PCI=n 2006-06-23 07:43:00 -07:00
w1 [PATCH] connector-exports 2006-06-23 07:43:06 -07:00
zorro [PATCH] amiga: fix driver_register() return handling, remove zorro_module_init() 2006-03-25 08:22:53 -08:00
Kconfig [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00
Makefile [I/OAT]: DMA memcpy subsystem 2006-06-17 21:18:43 -07:00