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authorSteven Whitehouse <swhiteho@redhat.com>2007-10-15 16:29:05 +0100
committerSteven Whitehouse <swhiteho@redhat.com>2008-01-25 08:07:16 +0000
commitf91a0d3e24e4b0198be5fae20d45a35c40d1efce (patch)
treecda8095f9befd25cbfaf5f63a4c8ca26870d45ca /fs/gfs2/log.c
parent3cc3f710ce0effe397b830826a1a081fa81f11c7 (diff)
downloadop-kernel-dev-f91a0d3e24e4b0198be5fae20d45a35c40d1efce.zip
op-kernel-dev-f91a0d3e24e4b0198be5fae20d45a35c40d1efce.tar.gz
[GFS2] Remove useless i_cache from inodes
The i_cache was designed to keep references to the indirect blocks used during block mapping so that they didn't have to be looked up continually. The idea failed because there are too many places where the i_cache needs to be freed, and this has in the past been the cause of many bugs. In addition there was no performance benefit being gained since the disk blocks in question were cached anyway. So this patch removes it in order to simplify the code to prepare for other changes which would otherwise have had to add further support for this feature. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/log.c')
-rw-r--r--fs/gfs2/log.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index 7df7024..70b404d 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -68,14 +68,12 @@ unsigned int gfs2_struct2blk(struct gfs2_sbd *sdp, unsigned int nstruct,
*
*/
-void gfs2_remove_from_ail(struct address_space *mapping, struct gfs2_bufdata *bd)
+void gfs2_remove_from_ail(struct gfs2_bufdata *bd)
{
bd->bd_ail = NULL;
list_del_init(&bd->bd_ail_st_list);
list_del_init(&bd->bd_ail_gl_list);
atomic_dec(&bd->bd_gl->gl_ail_count);
- if (mapping)
- gfs2_meta_cache_flush(GFS2_I(mapping->host));
brelse(bd->bd_bh);
}
@@ -248,7 +246,7 @@ static void gfs2_ail2_empty_one(struct gfs2_sbd *sdp, struct gfs2_ail *ai)
bd = list_entry(head->prev, struct gfs2_bufdata,
bd_ail_st_list);
gfs2_assert(sdp, bd->bd_ail == ai);
- gfs2_remove_from_ail(bd->bd_bh->b_page->mapping, bd);
+ gfs2_remove_from_ail(bd);
}
}
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