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| author | YiPing Xu <xuyiping@huawei.com> | 2016-03-17 14:20:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 15:09:34 -0700 |
| commit | a82cbf07131b56e7e51fbb008b82ef769af08790 (patch) | |
| tree | e8d944f2c179afec96117100733123bb9984f6d4 /mm | |
| parent | a1c0b1a074c0095492a956b4fe0067b74a82cfe3 (diff) | |
| download | lwn-a82cbf07131b56e7e51fbb008b82ef769af08790.tar.gz lwn-a82cbf07131b56e7e51fbb008b82ef769af08790.zip | |
zsmalloc: drop unused member 'mapping_area->huge'
When unmapping a huge class page in zs_unmap_object, the page will be
unmapped by kmap_atomic. the "!area->huge" branch in __zs_unmap_object
is alway true, and no code set "area->huge" now, so we can drop it.
Signed-off-by: YiPing Xu <xuyiping@huawei.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/zsmalloc.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 2d7c4c11fc63..43e4cbcce5af 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -281,7 +281,6 @@ struct mapping_area { #endif char *vm_addr; /* address of kmap_atomic()'ed pages */ enum zs_mapmode vm_mm; /* mapping mode */ - bool huge; }; static int create_handle_cache(struct zs_pool *pool) @@ -1127,11 +1126,9 @@ static void __zs_unmap_object(struct mapping_area *area, goto out; buf = area->vm_buf; - if (!area->huge) { - buf = buf + ZS_HANDLE_SIZE; - size -= ZS_HANDLE_SIZE; - off += ZS_HANDLE_SIZE; - } + buf = buf + ZS_HANDLE_SIZE; + size -= ZS_HANDLE_SIZE; + off += ZS_HANDLE_SIZE; sizes[0] = PAGE_SIZE - off; sizes[1] = size - sizes[0]; |