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Subject[PATCH 10/51] [GFS2] Detach buf data during in-place writeback
From: Bob Peterson <>

This is patch 5 of 5 for bug #248176

Metadata corruption was occurring because page references weren't
being removed in all cases. I previously added a function called
detach_bufdata, but I discovered there already WAS a function out
there to do the job. It's called gfs2_meta_cache_flush. So I added
a call to that to remove the page references.

Signed-off-by: Bob Peterson <>
Signed-off-by: Steven Whitehouse <>

diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index f7c0608..00ab6c0 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -219,6 +219,7 @@ static void gfs2_ail2_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
struct list_head *head = &ai->ai_ail2_list;
struct gfs2_bufdata *bd;
+ struct gfs2_inode *bh_ip;

while (!list_empty(head)) {
bd = list_entry(head->prev, struct gfs2_bufdata,
@@ -228,6 +229,8 @@ static void gfs2_ail2_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
+ bh_ip = GFS2_I(bd->bd_bh->b_page->mapping->host);
+ gfs2_meta_cache_flush(bh_ip);
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