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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-08-15 17:22:13 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-09-14 18:27:15 +0900
commitbd8169efae8bdd292675c386010f6b35f0771057 (patch)
treeaea73bd670910874eb78fd1f2c8ce8b2a494dfcb
parent7a102b09232be1ad7c180dfd1f46c7aa95dff1e0 (diff)
downloadvexpress-lsk-bd8169efae8bdd292675c386010f6b35f0771057.tar.gz
nilfs2: add update functions of virtual block address to dat
This is a preparation for the successive cleanup ("nilfs2: allow btree to directly call dat operations"). This adds functions bundling a few operations to change an entry of virtual block address on the dat file. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
-rw-r--r--fs/nilfs2/bmap.c27
-rw-r--r--fs/nilfs2/dat.c31
-rw-r--r--fs/nilfs2/dat.h6
3 files changed, 44 insertions, 20 deletions
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 99d58a028b9..13e95a907ec 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -533,38 +533,25 @@ int nilfs_bmap_prepare_update_v(struct nilfs_bmap *bmap,
union nilfs_bmap_ptr_req *oldreq,
union nilfs_bmap_ptr_req *newreq)
{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
- int ret;
-
- ret = nilfs_dat_prepare_end(dat, &oldreq->bpr_req);
- if (ret < 0)
- return ret;
- ret = nilfs_dat_prepare_alloc(dat, &newreq->bpr_req);
- if (ret < 0)
- nilfs_dat_abort_end(dat, &oldreq->bpr_req);
-
- return ret;
+ return nilfs_dat_prepare_update(nilfs_bmap_get_dat(bmap),
+ &oldreq->bpr_req, &newreq->bpr_req);
}
void nilfs_bmap_commit_update_v(struct nilfs_bmap *bmap,
union nilfs_bmap_ptr_req *oldreq,
union nilfs_bmap_ptr_req *newreq)
{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
-
- nilfs_dat_commit_end(dat, &oldreq->bpr_req,
- bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
- nilfs_dat_commit_alloc(dat, &newreq->bpr_req);
+ nilfs_dat_commit_update(nilfs_bmap_get_dat(bmap),
+ &oldreq->bpr_req, &newreq->bpr_req,
+ bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
}
void nilfs_bmap_abort_update_v(struct nilfs_bmap *bmap,
union nilfs_bmap_ptr_req *oldreq,
union nilfs_bmap_ptr_req *newreq)
{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
-
- nilfs_dat_abort_end(dat, &oldreq->bpr_req);
- nilfs_dat_abort_alloc(dat, &newreq->bpr_req);
+ nilfs_dat_abort_update(nilfs_bmap_get_dat(bmap),
+ &oldreq->bpr_req, &newreq->bpr_req);
}
static struct lock_class_key nilfs_bmap_dat_lock_key;
diff --git a/fs/nilfs2/dat.c b/fs/nilfs2/dat.c
index 1cfcc1a0fdf..1ff8e15bd36 100644
--- a/fs/nilfs2/dat.c
+++ b/fs/nilfs2/dat.c
@@ -211,6 +211,37 @@ void nilfs_dat_abort_end(struct inode *dat, struct nilfs_palloc_req *req)
nilfs_dat_abort_entry(dat, req);
}
+int nilfs_dat_prepare_update(struct inode *dat,
+ struct nilfs_palloc_req *oldreq,
+ struct nilfs_palloc_req *newreq)
+{
+ int ret;
+
+ ret = nilfs_dat_prepare_end(dat, oldreq);
+ if (!ret) {
+ ret = nilfs_dat_prepare_alloc(dat, newreq);
+ if (ret < 0)
+ nilfs_dat_abort_end(dat, oldreq);
+ }
+ return ret;
+}
+
+void nilfs_dat_commit_update(struct inode *dat,
+ struct nilfs_palloc_req *oldreq,
+ struct nilfs_palloc_req *newreq, int dead)
+{
+ nilfs_dat_commit_end(dat, oldreq, dead);
+ nilfs_dat_commit_alloc(dat, newreq);
+}
+
+void nilfs_dat_abort_update(struct inode *dat,
+ struct nilfs_palloc_req *oldreq,
+ struct nilfs_palloc_req *newreq)
+{
+ nilfs_dat_abort_end(dat, oldreq);
+ nilfs_dat_abort_alloc(dat, newreq);
+}
+
/**
* nilfs_dat_mark_dirty -
* @dat: DAT file inode
diff --git a/fs/nilfs2/dat.h b/fs/nilfs2/dat.h
index 91dc3372a39..406070d3ff4 100644
--- a/fs/nilfs2/dat.h
+++ b/fs/nilfs2/dat.h
@@ -41,6 +41,12 @@ void nilfs_dat_commit_start(struct inode *, struct nilfs_palloc_req *,
int nilfs_dat_prepare_end(struct inode *, struct nilfs_palloc_req *);
void nilfs_dat_commit_end(struct inode *, struct nilfs_palloc_req *, int);
void nilfs_dat_abort_end(struct inode *, struct nilfs_palloc_req *);
+int nilfs_dat_prepare_update(struct inode *, struct nilfs_palloc_req *,
+ struct nilfs_palloc_req *);
+void nilfs_dat_commit_update(struct inode *, struct nilfs_palloc_req *,
+ struct nilfs_palloc_req *, int);
+void nilfs_dat_abort_update(struct inode *, struct nilfs_palloc_req *,
+ struct nilfs_palloc_req *);
int nilfs_dat_mark_dirty(struct inode *, __u64);
int nilfs_dat_freev(struct inode *, __u64 *, size_t);