mm/nobootmem.c: remove duplicate macro ARCH_LOW_ADDRESS_LIMIT statements

[cascardo/linux.git] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 28d6f36..5ed3381 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1965,36 +1965,6 @@ bool wb_over_bg_thresh(struct bdi_writeback *wb)
        return false;
 }
 
-void throttle_vm_writeout(gfp_t gfp_mask)
-{
-       unsigned long background_thresh;
-       unsigned long dirty_thresh;
-
-        for ( ; ; ) {
-               global_dirty_limits(&background_thresh, &dirty_thresh);
-               dirty_thresh = hard_dirty_limit(&global_wb_domain, dirty_thresh);
-
-                /*
-                 * Boost the allowable dirty threshold a bit for page
-                 * allocators so they don't get DoS'ed by heavy writers
-                 */
-                dirty_thresh += dirty_thresh / 10;      /* wheeee... */
-
-                if (global_node_page_state(NR_UNSTABLE_NFS) +
-                       global_node_page_state(NR_WRITEBACK) <= dirty_thresh)
-                               break;
-                congestion_wait(BLK_RW_ASYNC, HZ/10);
-
-               /*
-                * The caller might hold locks which can prevent IO completion
-                * or progress in the filesystem.  So we cannot just sit here
-                * waiting for IO to complete.
-                */
-               if ((gfp_mask & (__GFP_FS|__GFP_IO)) != (__GFP_FS|__GFP_IO))
-                       break;
-        }
-}
-
 /*
  * sysctl handler for /proc/sys/vm/dirty_writeback_centisecs
  */