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authorSteven Whitehouse <swhiteho@redhat.com>2011-04-18 14:18:09 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2011-04-20 09:01:37 +0100
commit4667a0ec32867865fd4deccf834594b3ea831baf (patch)
treebff74fb13700e4087972fce94e45fd69dae7939b /fs/gfs2/log.h
parentf42ab0852946c1fb5103682c5897eb3da908e4b0 (diff)
GFS2: Make writeback more responsive to system conditions
This patch adds writeback_control to writing back the AIL list. This means that we can then take advantage of the information we get in ->write_inode() in order to set off some pre-emptive writeback. In addition, the AIL code is cleaned up a bit to make it a bit simpler to understand. There is still more which can usefully be done in this area, but this is a good start at least. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.h')
-rw-r--r--fs/gfs2/log.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/gfs2/log.h b/fs/gfs2/log.h
index 0d007f920234..ab0621698b73 100644
--- a/fs/gfs2/log.h
+++ b/fs/gfs2/log.h
@@ -12,6 +12,7 @@
#include <linux/list.h>
#include <linux/spinlock.h>
+#include <linux/writeback.h>
#include "incore.h"
/**
@@ -59,6 +60,7 @@ extern struct buffer_head *gfs2_log_fake_buf(struct gfs2_sbd *sdp,
extern void gfs2_log_flush(struct gfs2_sbd *sdp, struct gfs2_glock *gl);
extern void gfs2_log_commit(struct gfs2_sbd *sdp, struct gfs2_trans *trans);
extern void gfs2_remove_from_ail(struct gfs2_bufdata *bd);
+extern void gfs2_ail1_flush(struct gfs2_sbd *sdp, struct writeback_control *wbc);
extern void gfs2_log_shutdown(struct gfs2_sbd *sdp);
extern void gfs2_meta_syncfs(struct gfs2_sbd *sdp);