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author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-08-15 08:22:13 (GMT) |
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committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-09-14 09:27:15 (GMT) |
commit | bd8169efae8bdd292675c386010f6b35f0771057 (patch) | |
tree | aea73bd670910874eb78fd1f2c8ce8b2a494dfcb | |
parent | 7a102b09232be1ad7c180dfd1f46c7aa95dff1e0 (diff) | |
download | linux-bd8169efae8bdd292675c386010f6b35f0771057.tar.xz |
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.c | 27 | ||||
-rw-r--r-- | fs/nilfs2/dat.c | 31 | ||||
-rw-r--r-- | fs/nilfs2/dat.h | 6 |
3 files changed, 44 insertions, 20 deletions
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c index 99d58a0..13e95a9 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 1cfcc1a..1ff8e15 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 91dc337..406070d 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); |