q3k/linux
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
linux/drivers
History
Arjan van de Ven d4d5291c8c driver synchronization: make scsi_wait_scan more advanced 
There is currently only one way for userspace to say "wait for my storage
device to get ready for the modules I just loaded": to load the
scsi_wait_scan module. Expectations of userspace are that once this
module is loaded, all the (storage) devices for which the drivers
were loaded before the module load are present.

Now, there are some issues with the implementation, and the async
stuff got caught in the middle of this: The existing code only
waits for the scsy async probing to finish, but it did not take
into account at all that probing might not have begun yet.
(Russell ran into this problem on his computer and the fix works for him)

This patch fixes this more thoroughly than the previous "fix", which
had some bad side effects (namely, for kernel code that wanted to wait for
the scsi scan it would also do an async sync, which would deadlock if you did
it from async context already.. there's a report about that on lkml):
The patch makes the module first wait for all device driver probes, and then it
will wait for the scsi parallel scan to finish.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21 19:40:00 -07:00
..
accessibility
acpi PM/Suspend: Introduce two new platform callbacks to avoid breakage 2009-04-19 20:08:42 +02:00
amba
ata [libata] fix build error on drivers/ata/pata_legacy.c 2009-04-17 19:05:33 -04:00
atm Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n) 2009-04-13 15:04:33 -07:00
auxdisplay
base driver synchronization: make scsi_wait_scan more advanced 2009-04-21 19:40:00 -07:00
block USB: add reset endpoint operations 2009-04-17 10:50:27 -07:00
bluetooth
cdrom
char ipmi: add oem message handling 2009-04-21 13:41:48 -07:00
clocksource clocksource: pass clocksource to read() callback 2009-04-21 13:41:47 -07:00
connector
cpufreq
cpuidle
crypto dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
dca
dio
dma dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
edac edac: ppc mpc85xx fix mc err detect 2009-04-21 13:41:51 -07:00
eisa
firewire
firmware dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
gpio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-04-03 15:24:35 -07:00
gpu Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2009-04-20 08:42:48 -07:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2009-04-03 15:25:44 -07:00
hwmon hwmon: sht15 humidity sensor driver 2009-04-13 15:04:29 -07:00
i2c i2c: Let new-style drivers implement attach_adapter 2009-04-13 17:02:14 +02:00
ide cs5536: define dma_sff_read_status() method 2009-04-18 17:42:20 +02:00
idle dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) 2009-04-07 08:31:10 -07:00
ieee1394 dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2009-04-09 16:42:26 -07:00
input drivers/input/serio/hp_sdc.c: fix crash when removing hp_sdc module 2009-04-21 13:41:49 -07:00
isdn USB: add reset endpoint operations 2009-04-17 10:50:27 -07:00
leds leds: just ignore invalid GPIOs in leds-gpio 2009-04-08 14:13:48 +01:00
lguest lguest: fix guest crash on non-linear addresses in gdt pvops 2009-04-19 23:14:01 +09:30
macintosh
mca
md Merge branch 'for-linus' of git://neil.brown.name/md 2009-04-20 08:37:37 -07:00
media USB: add reset endpoint operations 2009-04-17 10:50:27 -07:00
memstick dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
message scsi: mpt: suppress debugobjects warning 2009-04-21 13:41:50 -07:00
mfd mfd: fix da903x warning 2009-04-05 00:32:25 +02:00
misc sgi-xp/sgi-gru: allow modules to load on non-uv systems 2009-04-21 13:41:50 -07:00
mmc mmc_spi: support for non-byte-aligned cards 2009-04-08 20:45:51 +02:00
mtd Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6 2009-04-06 15:00:00 -07:00
net Merge master.kernel.org:/home/rmk/linux-2.6-arm 2009-04-17 13:51:14 -07:00
nubus
of
oprofile Merge branch 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-04-05 11:04:19 -07:00
parisc parport: Fix various uses of parport_pc 2009-04-14 08:48:50 -07:00
parport parport: Use the PCI IRQ if offered 2009-04-07 08:44:06 -07:00
pci Merge git://git.infradead.org/iommu-2.6 2009-04-13 11:35:50 -07:00
pcmcia
platform Merge branches 'release', 'APERF', 'ARAT', 'misc', 'kelvin', 'device-lock' and 'bjorn.notify' into release 2009-04-07 18:18:42 -04:00
pnp dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) 2009-04-07 08:31:12 -07:00
power Merge git://git.infradead.org/battery-2.6 2009-04-08 17:45:02 -07:00
ps3
rapidio dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
regulator
rtc rtc-cmos: fix printk output 2009-04-21 13:41:50 -07:00
s390 [S390] dasd: fix idaw boundary checking for track based ccw 2009-04-14 15:37:25 +02:00
sbus sbus: changed ioctls to unlocked 2009-04-14 19:46:19 -07:00
scsi driver synchronization: make scsi_wait_scan more advanced 2009-04-21 19:40:00 -07:00
serial bfin_5xx: misplaced parentheses 2009-04-21 13:41:51 -07:00
sh sh: intc: Added resume from hibernation support to the intc 2009-04-06 08:55:19 -07:00
sn dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64) 2009-04-07 08:31:10 -07:00
spi spi: pxa2xx: limit reaches -1 2009-04-21 13:41:49 -07:00
ssb
staging go7007: Convert to the new i2c device binding model 2009-04-21 21:47:22 +02:00
tc
telephony
thermal
uio UIO: fix specific device driver missing statement for depmod 2009-04-16 16:17:11 -07:00
usb WUSB: correct format of wusb_chid sysfs file 2009-04-17 10:50:29 -07:00
uwb dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
video pxafb: lcsr1 is unused without CONFIG_FB_PXA_OVERLAY 2009-04-21 13:41:47 -07:00
virtio virtio: fix suspend when using virtio_balloon 2009-04-19 23:14:01 +09:30
w1 mfd: remove DS1WM clock handling 2009-04-05 00:32:22 +02:00
watchdog [WATCHDOG] omap_wdt.c: move probe function to .devinit.text 2009-04-08 06:21:57 +00:00
xen xen: honour VCPU availability on boot 2009-04-08 14:25:51 -07:00
zorro
Kconfig
Makefile