Gitweb: http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=014eb0...
Commit: 014eb04b03202dc75c1c749df4246d98045f5e69
Parent: fd6c6b51e3677937090314b20b00f2194900d81b
Author: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
AuthorDate: Mon Jul 21 17:14:29 2008 +0300
Committer: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
CommitDate: Wed Aug 13 11:27:47 2008 +0300
UBIFS: increment commit number earlier
Increment the commit number at the beginnig of the commit, instead
of doing this after the commit. This is needed for further
optimizations.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---
fs/ubifs/commit.c | 3 ++-
fs/ubifs/log.c | 2 +-
fs/ubifs/orphan.c | 4 ++--
fs/ubifs/ubifs.h | 3 ++-
4 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
index 3b51631..0a6aa2c 100644
--- a/fs/ubifs/commit.c
+++ b/fs/ubifs/commit.c
@@ -74,6 +74,7 @@ static int do_commit(struct ubifs_info *c)
goto out_up;
}
+ c->cmt_no += 1;
err = ubifs_gc_start_commit(c);
if (err)
goto out_up;
@@ -115,7 +116,7 @@ static int do_commit(struct ubifs_info *c)
goto out;
mutex_lock(&c->mst_mutex);
- c->mst_node->cmt_no = cpu_to_le64(++c->cmt_no);
+ c->mst_node->cmt_no = cpu_to_le64(c->cmt_no);
c->mst_node->log_lnum = cpu_to_le32(new_ltail_lnum);
c->mst_node->root_lnum = cpu_to_le32(zroot.lnum);
c->mst_node->root_offs = cpu_to_le32(zroot.offs);
diff --git a/fs/ubifs/log.c b/fs/ubifs/log.c
index e14829e..3e0aa73 100644
--- a/fs/ubifs/log.c
+++ b/fs/ubifs/log.c
@@ -412,7 +412,7 @@ int ubifs_log_start_commit(struct ubifs_info *c, int *ltail_lnum)
return -ENOMEM;
cs->ch.node_type = UBIFS_CS_NODE;
- cs->cmt_no = cpu_to_le64(c->cmt_no + 1);
+ cs->cmt_no = cpu_to_le64(c->cmt_no);
ubifs_prepare_node(c, cs, UBIFS_CS_NODE_SZ, 0);
/*
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index 3afeb92..02d3462 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -310,10 +310,10 @@ static int write_orph_node(struct ubifs_info *c, int atomic)
c->cmt_orphans -= cnt;
spin_unlock(&c->orphan_lock);
if (c->cmt_orphans)
- orph->cmt_no = cpu_to_le64(c->cmt_no + 1);
+ orph->cmt_no = cpu_to_le64(c->cmt_no);
else
/* Mark the last node of the commit */
- orph->cmt_no = cpu_to_le64((c->cmt_no + 1) | (1ULL << 63));
+ orph->cmt_no = cpu_to_le64((c->cmt_no) | (1ULL << 63));
ubifs_assert(c->ohead_offs + len <= c->leb_size);
ubifs_assert(c->ohead_lnum >= c->orph_first);
ubifs_assert(c->ohead_lnum <= c->orph_last);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index 6ddd1de..21502b6 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -865,7 +865,8 @@ struct ubifs_mount_opts {
* @highest_inum: highest used inode number
* @vfs_gen: VFS inode generation counter
* @max_sqnum: current global sequence number
- * @cmt_no: commit number (last successfully completed commit)
+ * @cmt_no: commit number of the last successfully completed commit, protected
+ * by @commit_sem
* @cnt_lock: protects @highest_inum, @vfs_gen, and @max_sqnum counters
* @fmt_version: UBIFS on-flash format version
* @uuid: UUID from super block
--
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
