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authorAndrew Morton <akpm@osdl.org>2006-10-19 23:28:16 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-20 10:26:35 -0700
commit3fcfab16c5b86eaa3db3a9a31adba550c5b67141 (patch)
treebd348fa081b8fbec2c79fbf8f173a306d70b2b2c /fs
parent[PATCH] export clear_queue_congested and set_queue_congested (diff)
downloadlinux-dev-3fcfab16c5b86eaa3db3a9a31adba550c5b67141.tar.xz
linux-dev-3fcfab16c5b86eaa3db3a9a31adba550c5b67141.zip
[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 'fs')
-rw-r--r--fs/fat/file.c3
-rw-r--r--fs/nfs/write.c4
-rw-r--r--fs/reiserfs/journal.c3
-rw-r--r--fs/xfs/linux-2.6/kmem.c5
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c3
5 files changed, 12 insertions, 6 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c
index f4b8f8b3fbdd..8337451e7897 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -13,6 +13,7 @@
#include <linux/smp_lock.h>
#include <linux/buffer_head.h>
#include <linux/writeback.h>
+#include <linux/backing-dev.h>
#include <linux/blkdev.h>
int fat_generic_ioctl(struct inode *inode, struct file *filp,
@@ -118,7 +119,7 @@ static int fat_file_release(struct inode *inode, struct file *filp)
if ((filp->f_mode & FMODE_WRITE) &&
MSDOS_SB(inode->i_sb)->options.flush) {
fat_flush_inodes(inode->i_sb, inode, NULL);
- blk_congestion_wait(WRITE, HZ/10);
+ congestion_wait(WRITE, HZ/10);
}
return 0;
}
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index f6675d2c386c..ca92ac36fe9d 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -57,6 +57,8 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_mount.h>
#include <linux/nfs_page.h>
+#include <linux/backing-dev.h>
+
#include <asm/uaccess.h>
#include <linux/smp_lock.h>
@@ -395,7 +397,7 @@ int nfs_writepages(struct address_space *mapping, struct writeback_control *wbc)
out:
clear_bit(BDI_write_congested, &bdi->state);
wake_up_all(&nfs_write_congestion);
- writeback_congestion_end();
+ congestion_end(WRITE);
return err;
}
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index ad8cbc49883a..85ce23268302 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -53,6 +53,7 @@
#include <linux/workqueue.h>
#include <linux/writeback.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
/* gets a struct reiserfs_journal_list * from a list head */
#define JOURNAL_LIST_ENTRY(h) (list_entry((h), struct reiserfs_journal_list, \
@@ -970,7 +971,7 @@ int reiserfs_async_progress_wait(struct super_block *s)
DEFINE_WAIT(wait);
struct reiserfs_journal *j = SB_JOURNAL(s);
if (atomic_read(&j->j_async_throttle))
- blk_congestion_wait(WRITE, HZ / 10);
+ congestion_wait(WRITE, HZ / 10);
return 0;
}
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index d59737589815..004baf600611 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -21,6 +21,7 @@
#include <linux/highmem.h>
#include <linux/swap.h>
#include <linux/blkdev.h>
+#include <linux/backing-dev.h>
#include "time.h"
#include "kmem.h"
@@ -53,7 +54,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
printk(KERN_ERR "XFS: possible memory allocation "
"deadlock in %s (mode:0x%x)\n",
__FUNCTION__, lflags);
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
} while (1);
}
@@ -131,7 +132,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
printk(KERN_ERR "XFS: possible memory allocation "
"deadlock in %s (mode:0x%x)\n",
__FUNCTION__, lflags);
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
} while (1);
}
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 9bbadafdcb00..db5f5a3608ca 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -30,6 +30,7 @@
#include <linux/hash.h>
#include <linux/kthread.h>
#include <linux/migrate.h>
+#include <linux/backing-dev.h>
#include "xfs_linux.h"
STATIC kmem_zone_t *xfs_buf_zone;
@@ -395,7 +396,7 @@ _xfs_buf_lookup_pages(
XFS_STATS_INC(xb_page_retries);
xfsbufd_wakeup(0, gfp_mask);
- blk_congestion_wait(WRITE, HZ/50);
+ congestion_wait(WRITE, HZ/50);
goto retry;
}