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| author |   Chengming Zhou <zhouchengming@bytedance.com> | 2024-02-20 06:53:02 +0000 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2024-02-23 17:48:32 -0800 |
| commit | ce335e0723470203ca3498d70de2eb97e6869a06 (patch) | |
| tree | 80c4a21d1602a59602745b489b0562b8219d5cb3 /mm/compaction.c | |
| parent | mm/zsmalloc: remove_zspage() don't need fullness parameter (diff) | |
| download | wireguard-linux-ce335e0723470203ca3498d70de2eb97e6869a06.tar.xz wireguard-linux-ce335e0723470203ca3498d70de2eb97e6869a06.zip | |
mm/zsmalloc: remove get_zspage_mapping()
Actually we seldom use the class_idx returned from get_zspage_mapping(),
only the zspage->fullness is useful, just use zspage->fullness to remove
this helper.
Note zspage->fullness is not stable outside pool->lock, remove redundant
"VM_BUG_ON(fullness != ZS_INUSE_RATIO_0)" in async_free_zspage() since we
already have the same VM_BUG_ON() in __free_zspage(), which is safe to
access zspage->fullness with pool->lock held.
Link: https://lkml.kernel.org/r/20240220-b4-zsmalloc-cleanup-v1-3-5c5ee4ccdd87@bytedance.com
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
0 files changed, 0 insertions, 0 deletions