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9dd5d3ab49
linux/drivers/block
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Josef Bacik 9dd5d3ab49 nbd: handle ERESTARTSYS properly 
We can submit IO in a processes context, which means there can be
pending signals.  This isn't a fatal error for NBD, but it does require
some finesse.  If the signal happens before we transmit anything then we
are ok, just requeue the request and carry on.  However if we've done a
partial transmit we can't allow anything else to be transmitted on this
socket until we transmit the remaining part of the request.  Deal with
this by keeping track of how much we've sent for the current request,
and if we get an ERESTARTSYS during any part of our transmission save
the state of that request and requeue the IO.  If anybody tries to
submit a request that isn't our pending request then requeue that
request until we are able to service the one that is pending.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-03-24 15:42:47 -06:00
..
aoe block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
drbd Merge branch 'WIP.sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-03-03 10:16:38 -08:00
mtip32xx block: mtip32xx: set error code on failure 2016-12-01 08:01:14 -07:00
paride scripts/spelling.txt: add "overide" pattern and fix typo instances 2017-03-09 17:01:09 -08:00
rsxx block: convert to device_add_disk() 2016-06-27 12:26:08 -07:00
xen-blkback xen: modify xenstore watch event interface 2017-02-09 11:26:49 -05:00
zram zram: set physical queue limits to avoid array out of bounds accesses 2017-03-08 09:56:12 -07:00
amiflop.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
ataflop.c Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next 2014-06-02 09:29:34 -07:00
brd.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
cciss_cmd.h
cciss_scsi.c cciss: Remove kmalloc cast 2017-02-22 11:54:49 -07:00
cciss_scsi.h
cciss.c scsi: cciss: correct check map error. 2017-02-23 17:10:32 -05:00
cciss.h SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
cryptoloop.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
DAC960.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
DAC960.h
floppy.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
hd.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
Kconfig virtio_blk: make SCSI passthrough support configurable 2017-01-31 10:53:10 -07:00
loop.c Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-03-03 11:38:56 -08:00
loop.h block: loop: support DIO & AIO 2015-09-23 11:01:16 -06:00
Makefile drivers:block: cpqarray clean up 2016-03-15 15:59:47 -07:00
mg_disk.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
nbd.c nbd: handle ERESTARTSYS properly 2017-03-24 15:42:47 -06:00
null_blk.c Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
osdblk.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
pktcdvd.c block: Use pointer to backing_dev_info from request_queue 2017-02-02 08:20:48 -07:00
ps3disk.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
ps3vram.c block: convert to device_add_disk() 2016-06-27 12:26:08 -07:00
rbd_types.h rbd: RBD_V{1,2}_DATA_FORMAT macros 2017-02-20 12:16:15 +01:00
rbd.c rbd: supported_features bus attribute 2017-03-07 14:30:38 +01:00
skd_main.c skd: implement trivial scsi ioctls directly 2017-01-31 10:53:03 -07:00
skd_s1120.h skd: fix formatting in skd_s1120.h 2013-11-08 09:10:30 -07:00
smart1,2.h
sunvdc.c sunvdc: Add support for setting physical sector size 2017-02-23 08:24:08 -08:00
swim3.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
swim_asm.S
swim.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
sx8.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
umem.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
umem.h
virtio_blk.c virtio, vhost: optimizations, fixes 2017-03-02 13:53:13 -08:00
xen-blkfront.c Merge branch 'for-4.11/next' into for-4.11/linus-merge 2017-02-17 14:08:19 -07:00
xsysace.c block: fold cmd_type into the REQ_OP_ space 2017-01-31 14:00:44 -07:00
z2ram.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00