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linux/drivers/block/null_blk
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Nitesh Shetty 8cfb98196c null_blk: Fix: memory release when memory_backed=1 
Memory/pages are not freed, when unloading nullblk driver.

Steps to reproduce issue
  1.free -h
        total        used        free      shared  buff/cache   available
Mem:    7.8Gi       260Mi       7.1Gi       3.0Mi       395Mi       7.3Gi
Swap:      0B          0B          0B
  2.modprobe null_blk memory_backed=1
  3.dd if=/dev/urandom of=/dev/nullb0 oflag=direct bs=1M count=1000
  4.modprobe -r null_blk
  5.free -h
        total        used        free      shared  buff/cache   available
Mem:    7.8Gi       1.2Gi       6.1Gi       3.0Mi       398Mi       6.3Gi
Swap:      0B          0B          0B

Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Nitesh Shetty <nj.shetty@samsung.com>
Link: https://lore.kernel.org/r/20230605062354.24785-1-nj.shetty@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-06-05 16:15:35 -06:00
..
Kconfig block: null_blk: make fault-injection dynamically configurable per device 2023-04-13 07:38:55 -06:00
main.c null_blk: Fix: memory release when memory_backed=1 2023-06-05 16:15:35 -06:00
Makefile
null_blk.h block: null_blk: make fault-injection dynamically configurable per device 2023-04-13 07:38:55 -06:00
trace.c
trace.h treewide: Rename enum req_opf into enum req_op 2022-07-14 12:14:30 -06:00
zoned.c null_blk: support read-only and offline zone conditions 2022-12-01 14:49:48 -07:00