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authorJens Axboe <jens.axboe@oracle.com>2009-09-16 15:13:54 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-09-16 15:18:52 +0200
commitb6e51316daede0633e9274e1e30391cfa4747877 (patch)
tree664476bb4e7c05dcce3ad908363b482134c68429 /include/linux
parentbcddc3f01c9122882c8b9f12ab94a934e55aef97 (diff)
writeback: separate starting of sync vs opportunistic writeback
bdi_start_writeback() is currently split into two paths, one for WB_SYNC_NONE and one for WB_SYNC_ALL. Add bdi_sync_writeback() for WB_SYNC_ALL writeback and let bdi_start_writeback() handle only WB_SYNC_NONE. Push down the writeback_control allocation and only accept the parameters that make sense for each function. This cleans up the API considerably. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/backing-dev.h2
-rw-r--r--include/linux/writeback.h4
2 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 859e797f457..0ee33c2e612 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -101,7 +101,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent,
const char *fmt, ...);
int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
void bdi_unregister(struct backing_dev_info *bdi);
-void bdi_start_writeback(struct writeback_control *wbc);
+void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages);
int bdi_writeback_task(struct bdi_writeback *wb);
int bdi_has_dirty_io(struct backing_dev_info *bdi);
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 48a054e2b71..75cf58666ff 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -68,8 +68,8 @@ struct writeback_control {
*/
struct bdi_writeback;
int inode_wait(void *);
-long writeback_inodes_sb(struct super_block *);
-long sync_inodes_sb(struct super_block *);
+void writeback_inodes_sb(struct super_block *);
+void sync_inodes_sb(struct super_block *);
void writeback_inodes_wbc(struct writeback_control *wbc);
long wb_do_writeback(struct bdi_writeback *wb, int force_wait);
void wakeup_flusher_threads(long nr_pages);