direct->d_bmap.b_last_allocated_ptr = ptr;
}
-static int nilfs_direct_prepare_insert(struct nilfs_direct *direct,
- __u64 key,
- union nilfs_bmap_ptr_req *req,
- struct nilfs_bmap_stats *stats)
-{
- int ret;
-
- if (NILFS_BMAP_USE_VBN(&direct->d_bmap))
- req->bpr_ptr = nilfs_direct_find_target_v(direct, key);
- ret = nilfs_bmap_prepare_alloc_ptr(&direct->d_bmap, req);
- if (ret < 0)
- return ret;
-
- stats->bs_nblocks = 1;
- return 0;
-}
-
-static void nilfs_direct_commit_insert(struct nilfs_direct *direct,
- union nilfs_bmap_ptr_req *req,
- __u64 key, __u64 ptr)
-{
- struct buffer_head *bh;
-
- /* ptr must be a pointer to a buffer head. */
- bh = (struct buffer_head *)((unsigned long)ptr);
- set_buffer_nilfs_volatile(bh);
-
- nilfs_bmap_commit_alloc_ptr(&direct->d_bmap, req);
- nilfs_direct_set_ptr(direct, key, req->bpr_ptr);
-
- if (!nilfs_bmap_dirty(&direct->d_bmap))
- nilfs_bmap_set_dirty(&direct->d_bmap);
-
- if (NILFS_BMAP_USE_VBN(&direct->d_bmap))
- nilfs_direct_set_target_v(direct, key, req->bpr_ptr);
-}
-
static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
{
- struct nilfs_direct *direct;
+ struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
union nilfs_bmap_ptr_req req;
- struct nilfs_bmap_stats stats;
+ struct inode *dat = NULL;
+ struct buffer_head *bh;
int ret;
- direct = (struct nilfs_direct *)bmap;
if (key > NILFS_DIRECT_KEY_MAX)
return -ENOENT;
if (nilfs_direct_get_ptr(direct, key) != NILFS_BMAP_INVALID_PTR)
return -EEXIST;
- ret = nilfs_direct_prepare_insert(direct, key, &req, &stats);
- if (ret < 0)
- return ret;
- nilfs_direct_commit_insert(direct, &req, key, ptr);
- nilfs_bmap_add_blocks(bmap, stats.bs_nblocks);
+ if (NILFS_BMAP_USE_VBN(bmap)) {
+ req.bpr_ptr = nilfs_direct_find_target_v(direct, key);
+ dat = nilfs_bmap_get_dat(bmap);
+ }
+ ret = nilfs_bmap_prepare_alloc_ptr(bmap, &req, dat);
+ if (!ret) {
+ /* ptr must be a pointer to a buffer head. */
+ bh = (struct buffer_head *)((unsigned long)ptr);
+ set_buffer_nilfs_volatile(bh);
- return 0;
-}
+ nilfs_bmap_commit_alloc_ptr(bmap, &req, dat);
+ nilfs_direct_set_ptr(direct, key, req.bpr_ptr);
-static int nilfs_direct_prepare_delete(struct nilfs_direct *direct,
- union nilfs_bmap_ptr_req *req,
- __u64 key,
- struct nilfs_bmap_stats *stats)
-{
- int ret;
+ if (!nilfs_bmap_dirty(bmap))
+ nilfs_bmap_set_dirty(bmap);
- req->bpr_ptr = nilfs_direct_get_ptr(direct, key);
- ret = nilfs_bmap_prepare_end_ptr(&direct->d_bmap, req);
- if (!ret)
- stats->bs_nblocks = 1;
- return ret;
-}
+ if (NILFS_BMAP_USE_VBN(bmap))
+ nilfs_direct_set_target_v(direct, key, req.bpr_ptr);
-static void nilfs_direct_commit_delete(struct nilfs_direct *direct,
- union nilfs_bmap_ptr_req *req,
- __u64 key)
-{
- nilfs_bmap_commit_end_ptr(&direct->d_bmap, req);
- nilfs_direct_set_ptr(direct, key, NILFS_BMAP_INVALID_PTR);
+ nilfs_bmap_add_blocks(bmap, 1);
+ }
+ return ret;
}
static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key)
{
- struct nilfs_direct *direct;
+ struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
union nilfs_bmap_ptr_req req;
- struct nilfs_bmap_stats stats;
+ struct inode *dat;
int ret;
- direct = (struct nilfs_direct *)bmap;
- if ((key > NILFS_DIRECT_KEY_MAX) ||
+ if (key > NILFS_DIRECT_KEY_MAX ||
nilfs_direct_get_ptr(direct, key) == NILFS_BMAP_INVALID_PTR)
return -ENOENT;
- ret = nilfs_direct_prepare_delete(direct, &req, key, &stats);
- if (ret < 0)
- return ret;
- nilfs_direct_commit_delete(direct, &req, key);
- nilfs_bmap_sub_blocks(bmap, stats.bs_nblocks);
+ dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL;
+ req.bpr_ptr = nilfs_direct_get_ptr(direct, key);
- return 0;
+ ret = nilfs_bmap_prepare_end_ptr(bmap, &req, dat);
+ if (!ret) {
+ nilfs_bmap_commit_end_ptr(bmap, &req, dat);
+ nilfs_direct_set_ptr(direct, key, NILFS_BMAP_INVALID_PTR);
+ nilfs_bmap_sub_blocks(bmap, 1);
+ }
+ return ret;
}
static int nilfs_direct_last_key(const struct nilfs_bmap *bmap, __u64 *keyp)
return 0;
}
-static int nilfs_direct_propagate_v(struct nilfs_direct *direct,
- struct buffer_head *bh)
+static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,
+ struct buffer_head *bh)
{
- union nilfs_bmap_ptr_req oldreq, newreq;
+ struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
+ struct nilfs_palloc_req oldreq, newreq;
+ struct inode *dat;
__u64 key;
__u64 ptr;
int ret;
- key = nilfs_bmap_data_get_key(&direct->d_bmap, bh);
+ if (!NILFS_BMAP_USE_VBN(bmap))
+ return 0;
+
+ dat = nilfs_bmap_get_dat(bmap);
+ key = nilfs_bmap_data_get_key(bmap, bh);
ptr = nilfs_direct_get_ptr(direct, key);
if (!buffer_nilfs_volatile(bh)) {
- oldreq.bpr_ptr = ptr;
- newreq.bpr_ptr = ptr;
- ret = nilfs_bmap_prepare_update_v(&direct->d_bmap, &oldreq,
- &newreq);
+ oldreq.pr_entry_nr = ptr;
+ newreq.pr_entry_nr = ptr;
+ ret = nilfs_dat_prepare_update(dat, &oldreq, &newreq);
if (ret < 0)
return ret;
- nilfs_bmap_commit_update_v(&direct->d_bmap, &oldreq, &newreq);
+ nilfs_dat_commit_update(dat, &oldreq, &newreq,
+ bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
set_buffer_nilfs_volatile(bh);
- nilfs_direct_set_ptr(direct, key, newreq.bpr_ptr);
+ nilfs_direct_set_ptr(direct, key, newreq.pr_entry_nr);
} else
- ret = nilfs_bmap_mark_dirty(&direct->d_bmap, ptr);
+ ret = nilfs_dat_mark_dirty(dat, ptr);
return ret;
}
-static int nilfs_direct_propagate(const struct nilfs_bmap *bmap,
- struct buffer_head *bh)
-{
- struct nilfs_direct *direct = (struct nilfs_direct *)bmap;
-
- return NILFS_BMAP_USE_VBN(bmap) ?
- nilfs_direct_propagate_v(direct, bh) : 0;
-}
-
static int nilfs_direct_assign_v(struct nilfs_direct *direct,
__u64 key, __u64 ptr,
struct buffer_head **bh,
sector_t blocknr,
union nilfs_binfo *binfo)
{
+ struct inode *dat = nilfs_bmap_get_dat(&direct->d_bmap);
union nilfs_bmap_ptr_req req;
int ret;
req.bpr_ptr = ptr;
- ret = nilfs_bmap_start_v(&direct->d_bmap, &req, blocknr);
- if (unlikely(ret < 0))
- return ret;
-
- binfo->bi_v.bi_vblocknr = nilfs_bmap_ptr_to_dptr(ptr);
- binfo->bi_v.bi_blkoff = nilfs_bmap_key_to_dkey(key);
-
- return 0;
+ ret = nilfs_dat_prepare_start(dat, &req.bpr_req);
+ if (!ret) {
+ nilfs_dat_commit_start(dat, &req.bpr_req, blocknr);
+ binfo->bi_v.bi_vblocknr = nilfs_bmap_ptr_to_dptr(ptr);
+ binfo->bi_v.bi_blkoff = nilfs_bmap_key_to_dkey(key);
+ }
+ return ret;
}
static int nilfs_direct_assign_p(struct nilfs_direct *direct,
git.openpandora.org / pandora-kernel.git / blobdiff