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| author |   Nitesh Shetty <nj.shetty@samsung.com> | 2023-06-05 11:53:53 +0530 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2023-06-05 16:15:35 -0600 |
| commit | 8cfb98196cceec35416041c6b91212d2b99392e4 (patch) | |
| tree | 16ed2fd5af84c8a9e805fd315bd705026a2c17c3 /scripts/generate_rust_analyzer.py | |
| parent | blk-mq: fix blk_mq_hw_ctx active request accounting (diff) | |
| download | wireguard-linux-8cfb98196cceec35416041c6b91212d2b99392e4.tar.xz wireguard-linux-8cfb98196cceec35416041c6b91212d2b99392e4.zip | |
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>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions