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authorAndrew Morton <akpm@osdl.org>2006-10-20 02:28:16 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 13:26:35 -0400
commit3fcfab16c5b86eaa3db3a9a31adba550c5b67141 (patch)
treebd348fa081b8fbec2c79fbf8f173a306d70b2b2c /arch
parent79e2de4bc53d7ca2a8eedee49e4a92479b4b530e (diff)
[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 'arch')
-rw-r--r--arch/i386/lib/usercopy.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/i386/lib/usercopy.c b/arch/i386/lib/usercopy.c
index 258df6b4d7d7..d22cfc9d656c 100644
--- a/arch/i386/lib/usercopy.c
+++ b/arch/i386/lib/usercopy.c
@@ -9,6 +9,7 @@
9#include <linux/highmem.h> 9#include <linux/highmem.h>
10#include <linux/blkdev.h> 10#include <linux/blkdev.h>
11#include <linux/module.h> 11#include <linux/module.h>
12#include <linux/backing-dev.h>
12#include <asm/uaccess.h> 13#include <asm/uaccess.h>
13#include <asm/mmx.h> 14#include <asm/mmx.h>
14 15
@@ -741,7 +742,7 @@ survive:
741 742
742 if (retval == -ENOMEM && is_init(current)) { 743 if (retval == -ENOMEM && is_init(current)) {
743 up_read(&current->mm->mmap_sem); 744 up_read(&current->mm->mmap_sem);
744 blk_congestion_wait(WRITE, HZ/50); 745 congestion_wait(WRITE, HZ/50);
745 goto survive; 746 goto survive;
746 } 747 }
747 748