Merge "mm: give up CPU when swap cache in inconsistence state" (d0286604) · Commits · e / devices / android_kernel_fairphone_FP3

mm/swap_state.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		#include <linux/blkdev.h>
		#include <linux/pagevec.h>
		#include <linux/migrate.h>
		#include <linux/delay.h>

		#include <asm/pgtable.h>

		@@ -350,8 +351,11 @@ struct page *__read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
		* busy looping, we just conditionally invoke the
		* scheduler here, if there are some more important
		* tasks to run.
		*
		* cond_resched() may not work if the process is RT.
		* We need a usleep_range() give up CPU to another task.
		*/
		cond_resched();
		usleep_range(500, 1000);
		continue;
		}
		if (err) { /* swp entry is obsolete ? */