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authorWu Fengguang <fengguang.wu@gmail.com>2009-12-03 13:54:25 +0100
committerJens Axboe <jens.axboe@oracle.com>2009-12-03 13:54:25 +0100
commit951c30d135390a108f102b0f6e3cfa6241f2a1aa (patch)
treed3184e177a7b47094ddf5a1e7540214de5b3a5e5
parentflusher: Fix PF_FROZEN race (diff)
downloadlinux-951c30d135390a108f102b0f6e3cfa6241f2a1aa.tar.xz
linux-951c30d135390a108f102b0f6e3cfa6241f2a1aa.zip
writeback: remove the always false bdi_cap_writeback_dirty() test
This is dead code because no bdi flush thread will be started for !bdi_cap_writeback_dirty bdi. Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
-rw-r--r--fs/fs-writeback.c18
1 files changed, 0 insertions, 18 deletions
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 9d5360c4c2af..0306c8e7d6b5 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -614,7 +614,6 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
struct writeback_control *wbc)
{
struct super_block *sb = wbc->sb, *pin_sb = NULL;
- const int is_blkdev_sb = sb_is_blkdev_sb(sb);
const unsigned long start = jiffies; /* livelock avoidance */
spin_lock(&inode_lock);
@@ -635,23 +634,6 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
continue;
}
- if (!bdi_cap_writeback_dirty(wb->bdi)) {
- redirty_tail(inode);
- if (is_blkdev_sb) {
- /*
- * Dirty memory-backed blockdev: the ramdisk
- * driver does this. Skip just this inode
- */
- continue;
- }
- /*
- * Dirty memory-backed inode against a filesystem other
- * than the kernel-internal bdev filesystem. Skip the
- * entire superblock.
- */
- break;
- }
-
if (inode->i_state & (I_NEW | I_WILL_FREE)) {
requeue_io(inode);
continue;