zram: revive swap_slot_free_notify
Commit b430e9d1 ("remove compressed copy from zram in-memory") applied swap_slot_free_notify call in *end_swap_bio_read* to remove duplicated memory between zram and memory. However, with the introduction of rw_page in zram: 8c7f0102 ("zram: implement rw_page operation of zram"), it became void because rw_page doesn't need bio. Memory footprint is really important in embedded platforms which have small memory, for example, 512M) recently because it could start to kill processes if memory footprint exceeds some threshold by LMK or some similar memory management modules. This patch restores the function for rw_page, thereby eliminating this duplication. Signed-off-by:Minchan Kim <minchan@kernel.org> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: karam.lee <karam.lee@lge.com> Cc: <sangseok.lee@lge.com> Cc: Chan Jeong <chan.jeong@lge.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
parent
d750c42a
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