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authorNhat Pham2023-01-06 14:00:16 -0800
committerAndrew Morton2023-01-11 16:14:21 -0800
commit1beb8ae302a01fb487787f5a4fb97cf5338a86c1 (patch)
tree8b43425951fdc53b6a1f38759e7632d3573bbc29 /Documentation
parentfed15f1345dc8a7fc8baa81e8b55c3ba010d7f4b (diff)
Docs/admin-guide/mm/zswap: remove zsmalloc's lack of writeback warning
Writeback has been implemented for zsmalloc, so this warning no longer holds. Link: https://lkml.kernel.org/r/20230106220016.172303-1-nphamcs@gmail.com Fixes: 9997bc017549a ("zsmalloc: implement writeback mechanism for zsmalloc") Suggested-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Nhat Pham <nphamcs@gmail.com> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/mm/zswap.rst4
1 files changed, 1 insertions, 3 deletions
diff --git a/Documentation/admin-guide/mm/zswap.rst b/Documentation/admin-guide/mm/zswap.rst
index f67de481c7f6..6dd74a18268b 100644
--- a/Documentation/admin-guide/mm/zswap.rst
+++ b/Documentation/admin-guide/mm/zswap.rst
@@ -70,9 +70,7 @@ e.g. ``zswap.zpool=zbud``. It can also be changed at runtime using the sysfs
The zbud type zpool allocates exactly 1 page to store 2 compressed pages, which
means the compression ratio will always be 2:1 or worse (because of half-full
zbud pages). The zsmalloc type zpool has a more complex compressed page
-storage method, and it can achieve greater storage densities. However,
-zsmalloc does not implement compressed page eviction, so once zswap fills it
-cannot evict the oldest page, it can only reject new pages.
+storage method, and it can achieve greater storage densities.
When a swap page is passed from frontswap to zswap, zswap maintains a mapping
of the swap entry, a combination of the swap type and swap offset, to the zpool