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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-05-26 08:26:05 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-06-01 12:29:06 +0300
commit1a0b06997ceca96db9259e537eb935f9fe59a3de (patch)
tree0428c1bb46987ae0deb05061d74f8c639ac879c8
parentab75950b11e74145ffe61376ac073d56645aab8a (diff)
downloadlinux-stericsson-1a0b06997ceca96db9259e537eb935f9fe59a3de.tar.gz
UBIFS: introduce a "grouped" journal head flag
Journal heads are different in a way how UBIFS writes nodes there. All normal journal heads receive grouped nodes, while the GC journal heads receives ungrouped nodes. This patch adds a 'grouped' flag to 'struct ubifs_jhead' which describes this property. This patch is a preparation to a further recovery fix. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
-rw-r--r--fs/ubifs/super.c5
-rw-r--r--fs/ubifs/ubifs.h2
2 files changed, 6 insertions, 1 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 1ab0d22e4c94..1e40db740da9 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -811,15 +811,18 @@ static int alloc_wbufs(struct ubifs_info *c)
c->jheads[i].wbuf.sync_callback = &bud_wbuf_callback;
c->jheads[i].wbuf.jhead = i;
+ c->jheads[i].grouped = 1;
}
c->jheads[BASEHD].wbuf.dtype = UBI_SHORTTERM;
/*
* Garbage Collector head likely contains long-term data and
- * does not need to be synchronized by timer.
+ * does not need to be synchronized by timer. Also GC head nodes are
+ * not grouped.
*/
c->jheads[GCHD].wbuf.dtype = UBI_LONGTERM;
c->jheads[GCHD].wbuf.no_timer = 1;
+ c->jheads[GCHD].grouped = 0;
return 0;
}
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index a70d7b4ffb25..adeca14c0e9f 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -722,12 +722,14 @@ struct ubifs_bud {
* struct ubifs_jhead - journal head.
* @wbuf: head's write-buffer
* @buds_list: list of bud LEBs belonging to this journal head
+ * @grouped: non-zero if UBIFS groups nodes when writing to this journal head
*
* Note, the @buds list is protected by the @c->buds_lock.
*/
struct ubifs_jhead {
struct ubifs_wbuf wbuf;
struct list_head buds_list;
+ unsigned int grouped:1;
};
/**