mm, compaction: always skip all compound pages by order in migrate scanner

[firefly-linux-kernel-4.4.55.git] / mm / Kconfig

diff --git a/mm/Kconfig b/mm/Kconfig
index e79de2bd12cd046c416537b8c6550ca3aea95a01..d4e6495a720f4af4869d1263a7c94fd7d5777254 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -299,15 +299,9 @@ config BOUNCE
 # On the 'tile' arch, USB OHCI needs the bounce pool since tilegx will often
 # have more than 4GB of memory, but we don't currently use the IOTLB to present
 # a 32-bit address to OHCI.  So we need to use a bounce pool instead.
-#
-# We also use the bounce pool to provide stable page writes for jbd.  jbd
-# initiates buffer writeback without locking the page or setting PG_writeback,
-# and fixing that behavior (a second time; jbd2 doesn't have this problem) is
-# a major rework effort.  Instead, use the bounce buffer to snapshot pages
-# (until jbd goes away).  The only jbd user is ext3.
 config NEED_BOUNCE_POOL
        bool
-       default y if (TILE && USB_OHCI_HCD) || (BLK_DEV_INTEGRITY && JBD)
+       default y if TILE && USB_OHCI_HCD
 
 config NR_QUICK
        int