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authorAndrew Morton <akpm@osdl.org>2006-10-20 10:28:16 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 21:26:35 +0400
commit3fcfab16c5b86eaa3db3a9a31adba550c5b67141 (patch)
treebd348fa081b8fbec2c79fbf8f173a306d70b2b2c /mm/page_alloc.c
parent79e2de4bc53d7ca2a8eedee49e4a92479b4b530e (diff)
downloadlinux-3fcfab16c5b86eaa3db3a9a31adba550c5b67141.tar.xz
[PATCH] separate bdi congestion functions from queue congestion functions
Separate out the concept of "queue congestion" from "backing-dev congestion". Congestion is a backing-dev concept, not a queue concept. The blk_* congestion functions are retained, as wrappers around the core backing-dev congestion functions. This proper layering is needed so that NFS can cleanly use the congestion functions, and so that CONFIG_BLOCK=n actually links. Cc: "Thomas Maier" <balagi@justmail.de> Cc: "Jens Axboe" <jens.axboe@oracle.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: David Howells <dhowells@redhat.com> Cc: Peter Osterlund <petero2@telia.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
-rw-r--r--mm/page_alloc.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 40db96a655d0..afee38f04d84 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -39,6 +39,7 @@
#include <linux/stop_machine.h>
#include <linux/sort.h>
#include <linux/pfn.h>
+#include <linux/backing-dev.h>
#include <asm/tlbflush.h>
#include <asm/div64.h>
@@ -1050,7 +1051,7 @@ nofail_alloc:
if (page)
goto got_pg;
if (gfp_mask & __GFP_NOFAIL) {
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
goto nofail_alloc;
}
}
@@ -1113,7 +1114,7 @@ rebalance:
do_retry = 1;
}
if (do_retry) {
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
goto rebalance;
}