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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 /fs/ubifs/budget.c
parentbcddc3f01c9122882c8b9f12ab94a934e55aef97 (diff)
downloadop-kernel-dev-b6e51316daede0633e9274e1e30391cfa4747877.zip
op-kernel-dev-b6e51316daede0633e9274e1e30391cfa4747877.tar.gz
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 'fs/ubifs/budget.c')
-rw-r--r--fs/ubifs/budget.c20
1 files changed, 3 insertions, 17 deletions
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 1c8991b..ee1ce68 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -54,29 +54,15 @@
* @nr_to_write: how many dirty pages to write-back
*
* This function shrinks UBIFS liability by means of writing back some amount
- * of dirty inodes and their pages. Returns the amount of pages which were
- * written back. The returned value does not include dirty inodes which were
- * synchronized.
+ * of dirty inodes and their pages.
*
* Note, this function synchronizes even VFS inodes which are locked
* (@i_mutex) by the caller of the budgeting function, because write-back does
* not touch @i_mutex.
*/
-static int shrink_liability(struct ubifs_info *c, int nr_to_write)
+static void shrink_liability(struct ubifs_info *c, int nr_to_write)
{
- int nr_written;
-
- nr_written = writeback_inodes_sb(c->vfs_sb);
- if (!nr_written) {
- /*
- * Re-try again but wait on pages/inodes which are being
- * written-back concurrently (e.g., by pdflush).
- */
- nr_written = sync_inodes_sb(c->vfs_sb);
- }
-
- dbg_budg("%d pages were written back", nr_written);
- return nr_written;
+ writeback_inodes_sb(c->vfs_sb);
}
/**
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