From 43209ea2d17aae1540d4e28274e36404f72702f2 Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Fri, 20 May 2016 16:59:59 -0700 Subject: zram: remove max_comp_streams internals Remove the internal part of max_comp_streams interface, since we switched to per-cpu streams. We will keep RW max_comp_streams attr around, because: a) we may (silently) switch back to idle compression streams list and don't want to disturb user space b) max_comp_streams attr must wait for the next 'lay off cycle'; we give user space 2 years to adjust before we remove/downgrade the attr, and there are already several attrs scheduled for removal in 4.11, so it's too late for max_comp_streams. This slightly change a user visible behaviour: - First, reading from max_comp_stream file now will always return the number of online CPUs. - Second, writing to max_comp_stream will not take any effect. Link: http://lkml.kernel.org/r/20160503165546.25201-1-sergey.senozhatsky@gmail.com Signed-off-by: Sergey Senozhatsky Cc: Minchan Kim Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/zram/zram_drv.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers/block/zram/zram_drv.h') diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h index 8e92339686d7..06b1636f4722 100644 --- a/drivers/block/zram/zram_drv.h +++ b/drivers/block/zram/zram_drv.h @@ -102,7 +102,6 @@ struct zram { * the number of pages zram can consume for storing compressed data */ unsigned long limit_pages; - int max_comp_streams; struct zram_stats stats; atomic_t refcount; /* refcount for zram_meta */ -- cgit v1.2.3-73-gaa49b