kernel/linux.git/mm/zpool.c, branch v6.1.168

zpool: remove the list of pools_head

2022-01-15T14:30:31+00:00

The list of pools_head is no longer needed because the caller has been deleted in commit 479305fd7172 ("zpool: remove zpool_evict()"). Link: https://lkml.kernel.org/r/20211215163727.GA17196@pc Signed-off-by: Zhaoyu Liu Cc: Dan Streetman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: fix typos in comments

2021-05-07T07:26:35+00:00

Fix ~94 single-word typos in locking code comments, plus a few very obvious grammar mistakes. Link: https://lkml.kernel.org/r/20210322212624.GA1963421@gmail.com Link: https://lore.kernel.org/r/20210322205203.GB1959563@gmail.com Signed-off-by: Ingo Molnar Reviewed-by: Matthew Wilcox (Oracle) Reviewed-by: Randy Dunlap Cc: Bhaskar Chowdhury Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/zswap: add the flag can_sleep_mapped

2021-02-26T17:41:01+00:00

Patch series "Fix the compatibility of zsmalloc and zswap". Patch #1 adds a flag to zpool, then zswap used to determine if zpool drivers such as zbud/z3fold/zsmalloc will enter an atomic context after mapping. The difference between zbud/z3fold and zsmalloc is that zsmalloc requires an atomic context that since its map function holds a preempt-disabled, but zbud/z3fold don't require an atomic context. So patch #2 sets flag sleep_mapped to true indicating that zbud/z3fold can sleep after mapping. zsmalloc didn't support sleep after mapping, so don't set that flag to true. This patch (of 2): Add a flag to zpool, named is "can_sleep_mapped", and have it set true for zbud/z3fold, not set this flag for zsmalloc, so its default value is false. Then zswap could go the current path if the flag is true; and if it's false, copy data from src to a temporary buffer, then unmap the handle, take the mutex, process the buffer instead of src to avoid sleeping function called from atomic context. [natechancellor@gmail.com: add return value in zswap_frontswap_load] Link: https://lkml.kernel.org/r/20210121214804.926843-1-natechancellor@gmail.com [tiantao6@hisilicon.com: fix potential memory leak] Link: https://lkml.kernel.org/r/1611538365-51811-1-git-send-email-tiantao6@hisilicon.com [colin.king@canonical.com: fix potential uninitialized pointer read on tmp] Link: https://lkml.kernel.org/r/20210128141728.639030-1-colin.king@canonical.com [tiantao6@hisilicon.com: fix variable 'entry' is uninitialized when used] Link: https://lkml.kernel.org/r/1611223030-58346-1-git-send-email-tiantao6@hisilicon.comLink: https://lkml.kernel.org/r/1611035683-12732-1-git-send-email-tiantao6@hisilicon.com Link: https://lkml.kernel.org/r/1611035683-12732-2-git-send-email-tiantao6@hisilicon.com Signed-off-by: Tian Tao Signed-off-by: Nathan Chancellor Signed-off-by: Colin Ian King Reviewed-by: Vitaly Wool Acked-by: Sebastian Andrzej Siewior Reported-by: Mike Galbraith Cc: Barry Song Cc: Dan Streetman Cc: Seth Jennings Cc: Dan Carpenter Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm/zpool.c: delete duplicated word and fix grammar

2020-08-12T17:57:58+00:00

Drop the repeated word "if". Fix subject/verb agreement. Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Reviewed-by: Andrew Morton Reviewed-by: Zi Yan Link: http://lkml.kernel.org/r/20200801173822.14973-15-rdunlap@infradead.org Signed-off-by: Linus Torvalds

zpool: add malloc_support_movable to zpool_driver

2019-09-24T22:54:12+00:00

As a zpool_driver, zsmalloc can allocate movable memory because it support migate pages. But zbud and z3fold cannot allocate movable memory. Add malloc_support_movable to zpool_driver. If a zpool_driver support allocate movable memory, set it to true. And add zpool_malloc_support_movable check malloc_support_movable to make sure if a zpool support allocate movable memory. Link: http://lkml.kernel.org/r/20190605100630.13293-1-teawaterz@linux.alibaba.com Signed-off-by: Hui Zhu Reviewed-by: Shakeel Butt Cc: Dan Streetman Cc: Minchan Kim Cc: Nitin Gupta Cc: Sergey Senozhatsky Cc: Seth Jennings Cc: Vitaly Wool Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

treewide: Add SPDX license identifier for more missed files

2019-05-21T08:50:45+00:00

Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

mm/zpool.c: zpool_evictable: fix mismatch in parameter name and kernel-doc

2018-02-21T23:35:43+00:00

[akpm@linux-foundation.org: add colon, per Randy] Link: http://lkml.kernel.org/r/1518116984-21141-1-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport Reviewed-by: Andrew Morton Cc: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: docs: fix parameter names mismatch

2018-02-07T02:32:48+00:00

There are several places where parameter descriptions do no match the actual code. Fix it. Link: http://lkml.kernel.org/r/1516700871-22279-3-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport Cc: Jonathan Corbet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

mm: docs: fixup punctuation

2018-02-07T02:32:48+00:00

so that kernel-doc will properly recognize the parameter and function descriptions. Link: http://lkml.kernel.org/r/1516700871-22279-2-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport Cc: Jonathan Corbet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

zswap: only save zswap header when necessary

2018-02-01T01:18:39+00:00

We waste sizeof(swp_entry_t) for zswap header when using zsmalloc as zpool driver because zsmalloc doesn't support eviction. Add zpool_evictable() to detect if zpool is potentially evictable, and use it in zswap to avoid waste memory for zswap header. [yuzhao@google.com: The zpool->" prefix is a result of copy & paste] Link: http://lkml.kernel.org/r/20180110225626.110330-1-yuzhao@google.com Link: http://lkml.kernel.org/r/20180110224741.83751-1-yuzhao@google.com Signed-off-by: Yu Zhao Acked-by: Dan Streetman Reviewed-by: Sergey Senozhatsky Cc: Seth Jennings Cc: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds