From 7b0de42d7c5a471741ede4e71727d88000e6ea59 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 29 Aug 2006 19:06:07 +0100 Subject: [PATCH] [PATCH] BLOCK: Remove dependence on existence of blockdev_superblock [try #6] Move blockdev_superblock extern declaration from fs/fs-writeback.c to a headerfile and remove the dependence on it by wrapping it in a macro. Signed-Off-By: David Howells Signed-off-by: Jens Axboe --- fs/fs-writeback.c | 6 +++--- fs/internal.h | 2 ++ 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 0639024d83a9..c403b66ec83c 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -319,7 +319,7 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc) if (!bdi_cap_writeback_dirty(bdi)) { list_move(&inode->i_list, &sb->s_dirty); - if (sb == blockdev_superblock) { + if (sb_is_blkdev_sb(sb)) { /* * Dirty memory-backed blockdev: the ramdisk * driver does this. Skip just this inode @@ -336,14 +336,14 @@ sync_sb_inodes(struct super_block *sb, struct writeback_control *wbc) if (wbc->nonblocking && bdi_write_congested(bdi)) { wbc->encountered_congestion = 1; - if (sb != blockdev_superblock) + if (!sb_is_blkdev_sb(sb)) break; /* Skip a congested fs */ list_move(&inode->i_list, &sb->s_dirty); continue; /* Skip a congested blockdev */ } if (wbc->bdi && bdi != wbc->bdi) { - if (sb != blockdev_superblock) + if (!sb_is_blkdev_sb(sb)) break; /* fs has the wrong queue */ list_move(&inode->i_list, &sb->s_dirty); continue; /* blockdev has wrong queue */ diff --git a/fs/internal.h b/fs/internal.h index c21ecd37b1e7..f662b703bb97 100644 --- a/fs/internal.h +++ b/fs/internal.h @@ -17,6 +17,8 @@ extern struct super_block *blockdev_superblock; extern void __init bdev_cache_init(void); +#define sb_is_blkdev_sb(sb) ((sb) == blockdev_superblock) + /* * char_dev.c */ -- 2.20.1