He Zhe 430380b463 block: aoe: Fix kernel crash due to atomic sleep when exiting ... Since commit 3582dd2917 ("aoe: convert aoeblk to blk-mq"), aoedev_downdev has had the possibility of sleeping and causing the following crash. BUG: scheduling while atomic: rmmod/2242/0x00000003 Modules linked in: aoe Preemption disabled at: [<ffffffffc01d95e5>] flush+0x95/0x4a0 [aoe] CPU: 7 PID: 2242 Comm: rmmod Tainted: G I 5.2.3 #1 Hardware name: Intel Corporation S5520HC/S5520HC, BIOS S5500.86B.01.10.0025.030220091519 03/02/2009 Call Trace: dump_stack+0x4f/0x6a ? flush+0x95/0x4a0 [aoe] __schedule_bug.cold+0x44/0x54 __schedule+0x44f/0x680 schedule+0x44/0xd0 blk_mq_freeze_queue_wait+0x46/0xb0 ? wait_woken+0x80/0x80 blk_mq_freeze_queue+0x1b/0x20 aoedev_downdev+0x111/0x160 [aoe] flush+0xff/0x4a0 [aoe] aoedev_exit+0x23/0x30 [aoe] aoe_exit+0x35/0x948 [aoe] __se_sys_delete_module+0x183/0x210 __x64_sys_delete_module+0x16/0x20 do_syscall_64+0x4d/0x130 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f24e0043b07 Code: 73 01 c3 48 8b 0d 89 73 0b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 59 73 0b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffe18f7f1e8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f24e0043b07 RDX: 000000000000000a RSI: 0000000000000800 RDI: 0000555c3ecf87c8 RBP: 00007ffe18f7f1f0 R08: 0000000000000000 R09: 0000000000000000 R10: 00007f24e00b4ac0 R11: 0000000000000206 R12: 00007ffe18f7f238 R13: 00007ffe18f7f410 R14: 00007ffe18f80e73 R15: 0000555c3ecf8760 This patch, handling in the same way of pass two, unlocks the locks and restart pass one after aoedev_downdev is done. Fixes: 3582dd2917 ("aoe: convert aoeblk to blk-mq") Signed-off-by: He Zhe <zhe.he@windriver.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2019-08-08 07:29:02 -06:00
..
aoe	block: aoe: Fix kernel crash due to atomic sleep when exiting	2019-08-08 07:29:02 -06:00
drbd	drbd: dynamically allocate shash descriptor	2019-07-23 07:35:18 -06:00
mtip32xx	block: mtip32xx: Remove call to memset after dma_alloc_coherent	2019-06-29 09:42:50 -06:00
paride	Linux 5.1-rc6	2019-04-22 09:47:36 -06:00
rsxx	rsxx: don't call dma_set_max_seg_size	2019-06-05 13:18:39 -06:00
xen-blkback	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
zram	docs: blockdev: add it to the admin-guide	2019-07-15 11:03:01 -03:00
amiflop.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
ataflop.c	ataflop: Mark expected switch fall-through	2019-07-29 15:24:58 -06:00
brd.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
cryptoloop.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 30	2019-05-24 17:27:10 +02:00
floppy.c	Merge branch 'floppy'	2019-07-18 08:43:20 -07:00
Kconfig	docs: blockdev: add it to the admin-guide	2019-07-15 11:03:01 -03:00
loop.c	loop: Fix mount(2) failure due to race with LOOP_SET_FD	2019-07-30 13:16:57 -06:00
loop.h	block/loop: Use global lock for ioctl() operation.	2018-11-08 06:30:11 -07:00
Makefile	drivers/block: Remove DAC960 driver	2018-10-17 09:42:30 -06:00
nbd.c	nbd: replace kill_bdev() with __invalidate_device() again	2019-07-31 08:51:56 -06:00
null_blk.h	null_blk: fixup ->report_zones() for !CONFIG_BLK_DEV_ZONED	2019-07-12 09:09:57 -06:00
null_blk_main.c	null_blk: fix type mismatch null_handle_cmd()	2019-06-29 09:36:37 -06:00
null_blk_zoned.c	block: Kill gfp_t argument of blkdev_report_zones()	2019-07-11 20:04:37 -06:00
pktcdvd.c	block: genhd: remove async_events field	2019-04-12 13:35:22 -06:00
ps3disk.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164	2019-05-30 11:26:38 -07:00
ps3vram.c	block/ps3vram: Use %llu to format sector_t after LBDAF removal	2019-06-13 03:17:50 -06:00
rbd.c	Lots of exciting things this time!	2019-07-18 11:05:25 -07:00
rbd_types.h	rbd: support for object-map and fast-diff	2019-07-08 14:01:45 +02:00
skd_main.c	Linux 5.2-rc6	2019-07-01 08:16:08 -06:00
skd_s1120.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497	2019-06-19 17:09:53 +02:00
sunvdc.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
swim.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
swim3.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
swim_asm.S	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
sx8.c	sx8: use a per-host tag_set	2018-11-09 08:14:14 -07:00
umem.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 349	2019-06-05 17:37:08 +02:00
umem.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348	2019-06-05 17:37:08 +02:00
virtio_blk.c	treewide: Add SPDX license identifier for more missed files	2019-05-21 10:50:45 +02:00
xen-blkfront.c	xen-blkfront: switch kcalloc to kvcalloc for large array allocation	2019-06-03 22:16:19 -04:00
xsysace.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
z2ram.c	powerpc updates for 4.20	2018-10-26 14:36:21 -07:00