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| author | Matthew Wilcox <willy@infradead.org> | 2021-11-19 16:43:15 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-20 10:35:54 -0800 |
| commit | 3cd018b4d6f2153e57bb67703891aa4fc7ac5c94 (patch) | |
| tree | 3b8e342fb55ccc4a6c40680757b2196c660ce827 /ipc/util.c | |
| parent | a90af8f15bdc9449ee2d24e1d73fa3f7e8633f81 (diff) | |
| download | linux-3cd018b4d6f2153e57bb67703891aa4fc7ac5c94.tar.gz linux-3cd018b4d6f2153e57bb67703891aa4fc7ac5c94.tar.bz2 linux-3cd018b4d6f2153e57bb67703891aa4fc7ac5c94.zip | |
mm/swap.c:put_pages_list(): reinitialise the page list
While free_unref_page_list() puts pages onto the CPU local LRU list, it
does not remove them from the list they were passed in on. That makes
the list_head appear to be non-empty, and would lead to various
corruption problems if we didn't have an assertion that the list was
empty.
Reinitialise the list after calling free_unref_page_list() to avoid this
problem.
Link: https://lkml.kernel.org/r/YYp40A2lNrxaZji8@casper.infradead.org
Fixes: 988c69f1bc23 ("mm: optimise put_pages_list()")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Steve French <stfrench@microsoft.com>
Reported-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Steve French <stfrench@microsoft.com>
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Cc: Steve French <smfrench@gmail.com>
Cc: Hyeoncheol Lee <hyc.lee@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/util.c')
0 files changed, 0 insertions, 0 deletions