zram: support idle/huge page writeback

[sfrench/cifs-2.6.git] / drivers / block / zram / zram_drv.h

diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h
index a84611b97867820f003117988251af425c8ebde3..1ad74f030b6dc5a88108dff7752a0d1f49df4707 100644 (file)
--- a/drivers/block/zram/zram_drv.h
+++ b/drivers/block/zram/zram_drv.h
@@ -47,6 +47,7 @@ enum zram_pageflags {
        ZRAM_LOCK = ZRAM_FLAG_SHIFT,
        ZRAM_SAME,      /* Page consists the same element */
        ZRAM_WB,        /* page is stored on backing_device */
+       ZRAM_UNDER_WB,  /* page is under writeback */
        ZRAM_HUGE,      /* Incompressible page */
        ZRAM_IDLE,      /* not accessed page since last idle marking */