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Paul Clements 7fdfd4065c NBD: allow hung network I/O to be cancelled ... Allow NBD I/O to be cancelled when a network outage occurs. Previously, I/O would just hang, and if enough I/O was hung in nbd, the system (at least user-level) would completely hang until a TCP timeout (default, 15 minutes) occurred. The patch introduces a new ioctl NBD_SET_TIMEOUT that allows a transmit timeout value (in seconds) to be specified. Any network send that exceeds the timeout will be cancelled and the nbd connection will be shut down. I've tested with various timeout values and 6 seconds seems to be a good choice for the timeout. If the NBD_SET_TIMEOUT ioctl is not called, you get the old (I/O hang) behavior. Signed-off-by: Paul Clements <paul.clements@steeleye.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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aoe	aoe: remove unecessary wrapper function	18 years ago
paride	[BLOCK] Get rid of request_queue_t typedef	18 years ago
DAC960.c	Fix "Fix DAC960 driver on machines which don't support 64-bit DMA"	18 years ago
DAC960.h	Fix DAC960 driver on machines which don't support 64-bit DMA	18 years ago
Kconfig	[S390] Remove obsolete recommendation for 8M ramdisk size.	18 years ago
Makefile	Make lguest compile with CONFIG_BLOCK=n and CONFIG_NET=n	18 years ago
amiflop.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
ataflop.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
cciss.c	Merge branch 'sglist-arch' into for-linus	18 years ago
cciss.h	[PATCH] cciss: add support for 1024 logical volumes	18 years ago
cciss_cmd.h	[PATCH] cciss: add support for 1024 logical volumes	18 years ago
cciss_scsi.c	[SCSI] cciss: convert to use the data buffer accessors	18 years ago
cciss_scsi.h	…
cpqarray.c	drivers/block/cpqarray,cciss: kill unused var	18 years ago
cpqarray.h	…
cryptoloop.c	…
floppy.c	floppy: tolerate DMA channel unavailability	18 years ago
ida_cmd.h	…
ida_ioctl.h	…
lguest_blk.c	Fixup rq_for_each_segment() indentation	18 years ago
loop.c	Remove unneeded lock_kernel() in driver/block/loop.c	18 years ago
nbd.c	NBD: allow hung network I/O to be cancelled	18 years ago
pktcdvd.c	pktcdvd: don't rely on bio_init() preserving bio->bi_destructor	18 years ago
ps2esdi.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
ps3disk.c	block: convert blkdev_issue_flush() to use empty barriers	18 years ago
rd.c	mm: bdi init hooks	18 years ago
smart1,2.h	…
sunvdc.c	[SUNVDC]: Use slice 0xff on VD_DISK_TYPE_DISK.	18 years ago
swim3.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
sx8.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
ub.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
umem.c	drivers/block/umem: use DRIVER_NAME where appropriate	18 years ago
umem.h	drivers/block/umem: trim trailing whitespace	18 years ago
viodasd.c	[POWERPC] iSeries: Move viodasd probing	18 years ago
xd.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago
xd.h	[BLOCK] Get rid of request_queue_t typedef	18 years ago
xen-blkfront.c	Fixup rq_for_each_segment() indentation	18 years ago
xsysace.c	Sysace: Don't enable IRQ until after interrupt handler is registered	18 years ago
z2ram.c	[BLOCK] Get rid of request_queue_t typedef	18 years ago