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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-08-15 15:34:33 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-09-14 18:27:16 +0900
commit2e0c2c73923fed27337039ddfd69985e6c4b91fe (patch)
treea6c4a318776f5804f53994acad7254c7404418f0 /fs/nilfs2/bmap.h
parentbd8169efae8bdd292675c386010f6b35f0771057 (diff)
downloadlinux-2e0c2c73923fed27337039ddfd69985e6c4b91fe.tar.bz2
nilfs2: allow btree code to directly call dat operations
The current btree code is written so that btree functions call dat operations via wrapper functions in bmap.c when they allocate, free, or modify virtual block addresses. This abstraction requires additional function calls and causes frequent call of nilfs_bmap_get_dat() function since it is used in the every wrapper function. This removes the wrapper functions and makes them available from btree.c and direct.c, which will increase the opportunity of compiler optimization. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/bmap.h')
-rw-r--r--fs/nilfs2/bmap.h69
1 files changed, 25 insertions, 44 deletions
diff --git a/fs/nilfs2/bmap.h b/fs/nilfs2/bmap.h
index b2890cdcef12..a4f64e54424c 100644
--- a/fs/nilfs2/bmap.h
+++ b/fs/nilfs2/bmap.h
@@ -28,6 +28,7 @@
#include <linux/buffer_head.h>
#include <linux/nilfs2_fs.h>
#include "alloc.h"
+#include "dat.h"
#define NILFS_BMAP_INVALID_PTR 0
@@ -164,86 +165,66 @@ void nilfs_bmap_commit_gcdat(struct nilfs_bmap *, struct nilfs_bmap *);
* Internal use only
*/
struct inode *nilfs_bmap_get_dat(const struct nilfs_bmap *);
-int nilfs_bmap_prepare_alloc_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *);
-void nilfs_bmap_commit_alloc_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *);
-void nilfs_bmap_abort_alloc_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *);
static inline int nilfs_bmap_prepare_alloc_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- if (NILFS_BMAP_USE_VBN(bmap))
- return nilfs_bmap_prepare_alloc_v(bmap, req);
+ if (dat)
+ return nilfs_dat_prepare_alloc(dat, &req->bpr_req);
/* ignore target ptr */
req->bpr_ptr = bmap->b_last_allocated_ptr++;
return 0;
}
static inline void nilfs_bmap_commit_alloc_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_bmap_commit_alloc_v(bmap, req);
+ if (dat)
+ nilfs_dat_commit_alloc(dat, &req->bpr_req);
}
static inline void nilfs_bmap_abort_alloc_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_bmap_abort_alloc_v(bmap, req);
+ if (dat)
+ nilfs_dat_abort_alloc(dat, &req->bpr_req);
else
bmap->b_last_allocated_ptr--;
}
-int nilfs_bmap_prepare_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);
-void nilfs_bmap_commit_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);
-void nilfs_bmap_abort_end_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *);
-
static inline int nilfs_bmap_prepare_end_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- return NILFS_BMAP_USE_VBN(bmap) ?
- nilfs_bmap_prepare_end_v(bmap, req) : 0;
+ return dat ? nilfs_dat_prepare_end(dat, &req->bpr_req) : 0;
}
static inline void nilfs_bmap_commit_end_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_bmap_commit_end_v(bmap, req);
+ if (dat)
+ nilfs_dat_commit_end(dat, &req->bpr_req,
+ bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
}
static inline void nilfs_bmap_abort_end_ptr(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
+ union nilfs_bmap_ptr_req *req,
+ struct inode *dat)
{
- if (NILFS_BMAP_USE_VBN(bmap))
- nilfs_bmap_abort_end_v(bmap, req);
+ if (dat)
+ nilfs_dat_abort_end(dat, &req->bpr_req);
}
-int nilfs_bmap_start_v(struct nilfs_bmap *, union nilfs_bmap_ptr_req *,
- sector_t);
-int nilfs_bmap_move_v(const struct nilfs_bmap *, __u64, sector_t);
-int nilfs_bmap_mark_dirty(const struct nilfs_bmap *, __u64);
-
-
__u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *,
const struct buffer_head *);
__u64 nilfs_bmap_find_target_seq(const struct nilfs_bmap *, __u64);
__u64 nilfs_bmap_find_target_in_group(const struct nilfs_bmap *);
-int nilfs_bmap_prepare_update_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *,
- union nilfs_bmap_ptr_req *);
-void nilfs_bmap_commit_update_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *,
- union nilfs_bmap_ptr_req *);
-void nilfs_bmap_abort_update_v(struct nilfs_bmap *,
- union nilfs_bmap_ptr_req *,
- union nilfs_bmap_ptr_req *);
-
void nilfs_bmap_add_blocks(const struct nilfs_bmap *, int);
void nilfs_bmap_sub_blocks(const struct nilfs_bmap *, int);