diff options
| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-05-26 08:26:05 +0300 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-06-01 12:29:06 +0300 |
| commit | 1a0b06997ceca96db9259e537eb935f9fe59a3de (patch) | |
| tree | 0428c1bb46987ae0deb05061d74f8c639ac879c8 /fs | |
| parent | ab75950b11e74145ffe61376ac073d56645aab8a (diff) | |
| download | lwn-1a0b06997ceca96db9259e537eb935f9fe59a3de.tar.gz lwn-1a0b06997ceca96db9259e537eb935f9fe59a3de.zip | |
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ubifs/super.c | 5 | ||||
| -rw-r--r-- | fs/ubifs/ubifs.h | 2 |
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; }; /** |