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2894e1d769
linux/drivers/block
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Ilya Dryomov 2894e1d769 rbd: timeout watch teardown on unmap with mount_timeout 
As part of unmap sequence, kernel client has to talk to the OSDs to
teardown watch on the header object.  If none of the OSDs are available
it would hang forever, until interrupted by a signal - when that
happens we follow through with the rest of unmap procedure (i.e.
unregister the device and put all the data structures) and the unmap is
still considired successful (rbd cli tool exits with 0).  The watch on
the userspace side should eventually timeout so that's fine.

This isn't very nice, because various userspace tools (pacemaker rbd
resource agent, for example) then have to worry about setting up their
own timeouts.  Timeout it with mount_timeout (60 seconds by default).

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Sage Weil <sage@redhat.com>
2015-06-25 11:49:30 +03:00
..
aoe block: remove artifical max_hw_sectors cap 2014-10-21 14:02:54 -06:00
drbd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2015-04-26 17:22:07 -07:00
mtip32xx blk-mq: add a 'list' parameter to ->queue_rq() 2014-10-29 11:14:52 -06:00
paride paride: fix the "verbose" module param 2015-04-15 16:35:22 -07:00
rsxx block/rsxx: use generic io stats accounting functions to simplify io stat accounting 2014-11-24 08:05:18 -07:00
xen-blkback xen/grant: introduce func gnttab_unmap_refs_sync() 2015-04-27 11:41:12 +01:00
zram zram: clear disk io accounting when reset zram device 2015-06-10 16:43:43 -07:00
amiflop.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
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 brd: rename XIP to DAX 2015-02-16 17:56:04 -08:00
cciss_cmd.h
cciss_scsi.c cciss: switch to ->show_info() 2013-04-09 14:13:19 -04:00
cciss_scsi.h
cciss.c block: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
cciss.h
cpqarray.c genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely 2015-03-05 20:53:06 +01:00
cpqarray.h
cryptoloop.c move linux/loop.h to drivers/block 2013-06-29 12:46:45 +04:00
DAC960.c block: use pci_zalloc_consistent 2014-08-08 15:57:28 -07:00
DAC960.h
floppy.c floppy: Avoid manual call of device_create_file() 2015-02-03 13:00:36 +01:00
hd.c block: hd: remove deprecated IRQF_DISABLED 2014-10-01 08:16:07 -06:00
ida_cmd.h
ida_ioctl.h
Kconfig block: pmem: Add dependency on HAS_IOMEM 2015-06-11 15:54:58 -06:00
loop.c block: destroy bdi before blockdev is unregistered. 2015-04-27 10:27:20 -06:00
loop.h loop: add blk-mq.h include 2015-01-02 15:20:25 -07:00
Makefile drivers/block/pmem: Add a driver for persistent memory 2015-04-01 17:03:56 +02:00
mg_disk.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
nbd.c nbd: Return error pointer directly 2015-04-02 12:39:28 -06:00
null_blk.c null_blk: suppress invalid partition info 2015-01-16 16:02:24 -07:00
nvme-core.c NVMe: fix type warning on 32-bit 2015-05-29 10:06:21 -06:00
nvme-scsi.c nvme: fix kernel memory corruption with short INQUIRY buffers 2015-05-13 10:22:12 -04:00
osdblk.c block: support different tag allocation policy 2015-01-23 14:15:46 -07:00
pktcdvd.c block,scsi: fixup blk_get_request dead queue scenarios 2014-08-28 10:03:46 -06:00
pmem.c drivers/block/pmem: Fix 32-bit build warning in pmem_alloc() 2015-04-01 17:03:57 +02:00
ps3disk.c block: Kill bio_segments()/bi_vcnt usage 2013-11-23 22:33:51 -08:00
ps3vram.c block: Convert bio_for_each_segment() to bvec_iter 2013-11-23 22:33:49 -08:00
rbd_types.h rbd: get rid of RBD_MAX_SEG_NAME_LEN 2012-12-17 08:37:29 -06:00
rbd.c rbd: timeout watch teardown on unmap with mount_timeout 2015-06-25 11:49:30 +03:00
skd_main.c block: disable entropy contributions for nonrot devices 2014-10-04 10:55:32 -06:00
skd_s1120.h skd: fix formatting in skd_s1120.h 2013-11-08 09:10:30 -07:00
smart1,2.h
sunvdc.c sunvdc: reconnect ldc after vds service domain restarts 2014-12-11 18:52:45 -08:00
swim3.c powerpc: Move Power Macintosh drivers to generic byteswappers 2015-03-23 14:29:40 +11:00
swim_asm.S
swim.c block: drop owner assignment from platform_drivers 2014-10-20 16:20:18 +02:00
sx8.c block,scsi: fixup blk_get_request dead queue scenarios 2014-08-28 10:03:46 -06:00
umem.c block: Convert drivers to immutable biovecs 2013-11-23 22:33:51 -08:00
umem.h
virtio_blk.c sd, mmc, virtio_blk, string_helpers: fix block size units 2015-04-10 16:27:48 -07:00
xen-blkfront.c xenbus_client: Extend interface to support multi-page ring 2015-04-15 10:56:47 +01:00
xsysace.c block: systemace: Remove .owner field for driver 2014-08-21 20:37:54 -05:00
z2ram.c block: remove struct request buffer member 2014-04-15 14:03:02 -06:00