Mike Galbraith e36db925a5 zram: Replace bit spinlocks with spinlock_t for PREEMPT_RT. ...

BugLink: https://bugs.launchpad.net/bugs/2060704

The bit spinlock disables preemption. The spinlock_t lock becomes a sleeping
lock on PREEMPT_RT and it can not be acquired in this context. In this locked
section, zs_free() acquires a zs_pool::lock, and there is access to
zram::wb_limit_lock.

Use a spinlock_t on PREEMPT_RT for locking and set/ clear ZRAM_LOCK bit after
the lock has been acquired/ dropped.

Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lkml.kernel.org/r/YqIbMuHCPiQk+Ac2@linutronix.de
Link: https://lore.kernel.org/20230323161830.jFbWCosd@linutronix.de
Signed-off-by: Kevin Becker <kevin.becker@canonical.com>

2025-06-25 11:06:05 -04:00

..

aoe

aoe: fix the potential use-after-free problem in more places

2025-01-17 14:44:41 +03:00

drbd

drbd: use sendpages_ok() instead of sendpage_ok()

2025-03-14 14:29:48 +01:00

mtip32xx

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

null_blk

null_blk: fix validation of block size

2024-09-27 11:14:55 +02:00

rnbd

block/rnbd-srv: Check for unlikely string overflow

2023-12-13 08:15:48 -07:00

xen-blkback

drivers/block/xen-blkback/common.h: Fix spelling typo in comment

2024-01-04 16:10:29 -07:00

zram

zram: Replace bit spinlocks with spinlock_t for PREEMPT_RT.

2025-06-25 11:06:05 -04:00

amiflop.c

amiflop: don't call fsync_bdev in FDFMTBEG

2023-08-21 14:35:31 +02:00

ataflop.c

block: move bdev_mark_dead out of disk_check_media_change

2023-10-28 13:29:23 +02:00

brd.c

brd: defer automatic disk creation until module initialization succeeds

2025-03-14 14:30:41 +01:00

floppy.c

mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER

2024-01-08 15:27:15 -08:00

Kconfig

block: ublk: switch to ioctl command encoding

2023-04-18 20:13:30 -06:00

loop.c

loop: don't set QUEUE_FLAG_NOMERGES

2025-01-17 14:44:09 +03:00

Makefile

Revert "pktcdvd: remove driver."

2023-01-04 14:44:13 -07:00

n64cart.c

block: remove blk_cleanup_disk

2022-06-28 06:33:15 -06:00

nbd.c

nbd: don't allow reconnect after disconnect

2025-06-15 10:37:22 +03:00

pktcdvd.c

pktcdvd: Convert to bdev_open_by_dev()

2023-10-28 13:29:17 +02:00

ps3disk.c

block: remove blk_cleanup_disk

2022-06-28 06:33:15 -06:00

ps3vram.c

ps3vram: remove bio splitting

2023-01-29 15:18:35 -07:00

rbd_types.h

libceph, rbd: replace zero-length array with flexible-array

2020-06-01 13:22:53 +02:00

rbd.c

rbd: don't assume RBD_LOCK_STATE_LOCKED for exclusive mappings

2024-11-09 18:40:10 +03:00

sunvdc.c

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

swim3.c

swim3: mark swim3_init() static

2023-08-10 08:32:59 -06:00

swim_asm.S

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30 11:26:32 -07:00

swim.c

swim: fix a missing FMODE_ -> BLK_OPEN_ conversion in floppy_open

2023-06-20 07:16:04 -06:00

ublk_drv.c

ublk: detach gendisk from ublk device if add_disk() fails

2025-04-15 19:58:58 +03:00

virtio_blk.c

virtio-blk: don't keep queue frozen during system suspend

2025-04-15 19:58:55 +03:00

xen-blkfront.c

Merge tag 'for-6.5/block-2023-06-23' of git://git.kernel.dk/linux

2023-06-26 12:47:20 -07:00

z2ram.c

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00