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authorMaciej S. Szmigiero2022-03-22 14:47:43 -0700
committerLinus Torvalds2022-03-22 15:57:11 -0700
commitcb325ddde5616219848ac0e100a781919a0ce55b (patch)
tree677bd45c77d094f0ff54efb3dd5cf5681856fce2 /mm/usercopy.c
parentbd55b0c2d64e84a75575f548a33a3dfecc135b65 (diff)
mm/zswap.c: allow handling just same-value filled pages
Zswap has an ability to efficiently store same-value filled pages, which can be turned on and off using the "same_filled_pages_enabled" parameter. However, there is currently no way to enable just this (lightweight) functionality, while not making use of the whole compressed page storage machinery. Add a "non_same_filled_pages_enabled" parameter which allows disabling handling of pages that aren't same-value filled. This way zswap can be run in such lightweight same-value filled pages only mode. Link: https://lkml.kernel.org/r/7dbafa963e8bab43608189abbe2067f4b9287831.1641247624.git.maciej.szmigiero@oracle.com Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com> Cc: Seth Jennings <sjenning@redhat.com> Cc: Dan Streetman <ddstreet@ieee.org> Cc: Vitaly Wool <vitaly.wool@konsulko.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/usercopy.c')
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