diff options
| -rw-r--r-- | fs/nilfs2/direct.c | 78 |
1 files changed, 32 insertions, 46 deletions
diff --git a/fs/nilfs2/direct.c b/fs/nilfs2/direct.c index fd006eefc25..cfc7218914d 100644 --- a/fs/nilfs2/direct.c +++ b/fs/nilfs2/direct.c @@ -27,31 +27,29 @@ #include "alloc.h" #include "dat.h" -static inline __le64 *nilfs_direct_dptrs(const struct nilfs_direct *direct) +static inline __le64 *nilfs_direct_dptrs(const struct nilfs_bmap *direct) { return (__le64 *) - ((struct nilfs_direct_node *)direct->d_bmap.b_u.u_data + 1); + ((struct nilfs_direct_node *)direct->b_u.u_data + 1); } static inline __u64 -nilfs_direct_get_ptr(const struct nilfs_direct *direct, __u64 key) +nilfs_direct_get_ptr(const struct nilfs_bmap *direct, __u64 key) { return le64_to_cpu(*(nilfs_direct_dptrs(direct) + key)); } -static inline void nilfs_direct_set_ptr(struct nilfs_direct *direct, +static inline void nilfs_direct_set_ptr(struct nilfs_bmap *direct, __u64 key, __u64 ptr) { *(nilfs_direct_dptrs(direct) + key) = cpu_to_le64(ptr); } -static int nilfs_direct_lookup(const struct nilfs_bmap *bmap, +static int nilfs_direct_lookup(const struct nilfs_bmap *direct, __u64 key, int level, __u64 *ptrp) { - struct nilfs_direct *direct; __u64 ptr; - direct = (struct nilfs_direct *)bmap; /* XXX: use macro for level 1 */ if (key > NILFS_DIRECT_KEY_MAX || level != 1) return -ENOENT; ptr = nilfs_direct_get_ptr(direct, key); @@ -63,11 +61,10 @@ static int nilfs_direct_lookup(const struct nilfs_bmap *bmap, return 0; } -static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap, +static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct, __u64 key, __u64 *ptrp, unsigned maxblocks) { - struct nilfs_direct *direct = (struct nilfs_direct *)bmap; struct inode *dat = NULL; __u64 ptr, ptr2; sector_t blocknr; @@ -79,8 +76,8 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap, if (ptr == NILFS_BMAP_INVALID_PTR) return -ENOENT; - if (NILFS_BMAP_USE_VBN(bmap)) { - dat = nilfs_bmap_get_dat(bmap); + if (NILFS_BMAP_USE_VBN(direct)) { + dat = nilfs_bmap_get_dat(direct); ret = nilfs_dat_translate(dat, ptr, &blocknr); if (ret < 0) return ret; @@ -106,29 +103,28 @@ static int nilfs_direct_lookup_contig(const struct nilfs_bmap *bmap, } static __u64 -nilfs_direct_find_target_v(const struct nilfs_direct *direct, __u64 key) +nilfs_direct_find_target_v(const struct nilfs_bmap *direct, __u64 key) { __u64 ptr; - ptr = nilfs_bmap_find_target_seq(&direct->d_bmap, key); + ptr = nilfs_bmap_find_target_seq(direct, key); if (ptr != NILFS_BMAP_INVALID_PTR) /* sequential access */ return ptr; else /* block group */ - return nilfs_bmap_find_target_in_group(&direct->d_bmap); + return nilfs_bmap_find_target_in_group(direct); } -static void nilfs_direct_set_target_v(struct nilfs_direct *direct, +static void nilfs_direct_set_target_v(struct nilfs_bmap *direct, __u64 key, __u64 ptr) { - direct->d_bmap.b_last_allocated_key = key; - direct->d_bmap.b_last_allocated_ptr = ptr; + direct->b_last_allocated_key = key; + direct->b_last_allocated_ptr = ptr; } static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) { - struct nilfs_direct *direct = (struct nilfs_direct *)bmap; union nilfs_bmap_ptr_req req; struct inode *dat = NULL; struct buffer_head *bh; @@ -136,11 +132,11 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) if (key > NILFS_DIRECT_KEY_MAX) return -ENOENT; - if (nilfs_direct_get_ptr(direct, key) != NILFS_BMAP_INVALID_PTR) + if (nilfs_direct_get_ptr(bmap, key) != NILFS_BMAP_INVALID_PTR) return -EEXIST; if (NILFS_BMAP_USE_VBN(bmap)) { - req.bpr_ptr = nilfs_direct_find_target_v(direct, key); + req.bpr_ptr = nilfs_direct_find_target_v(bmap, key); dat = nilfs_bmap_get_dat(bmap); } ret = nilfs_bmap_prepare_alloc_ptr(bmap, &req, dat); @@ -150,13 +146,13 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) set_buffer_nilfs_volatile(bh); nilfs_bmap_commit_alloc_ptr(bmap, &req, dat); - nilfs_direct_set_ptr(direct, key, req.bpr_ptr); + nilfs_direct_set_ptr(bmap, key, req.bpr_ptr); if (!nilfs_bmap_dirty(bmap)) nilfs_bmap_set_dirty(bmap); if (NILFS_BMAP_USE_VBN(bmap)) - nilfs_direct_set_target_v(direct, key, req.bpr_ptr); + nilfs_direct_set_target_v(bmap, key, req.bpr_ptr); nilfs_bmap_add_blocks(bmap, 1); } @@ -165,33 +161,30 @@ static int nilfs_direct_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr) static int nilfs_direct_delete(struct nilfs_bmap *bmap, __u64 key) { - struct nilfs_direct *direct = (struct nilfs_direct *)bmap; union nilfs_bmap_ptr_req req; struct inode *dat; int ret; if (key > NILFS_DIRECT_KEY_MAX || - nilfs_direct_get_ptr(direct, key) == NILFS_BMAP_INVALID_PTR) + nilfs_direct_get_ptr(bmap, key) == NILFS_BMAP_INVALID_PTR) return -ENOENT; dat = NILFS_BMAP_USE_VBN(bmap) ? nilfs_bmap_get_dat(bmap) : NULL; - req.bpr_ptr = nilfs_direct_get_ptr(direct, key); + req.bpr_ptr = nilfs_direct_get_ptr(bmap, key); 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_direct_set_ptr(bmap, 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) +static int nilfs_direct_last_key(const struct nilfs_bmap *direct, __u64 *keyp) { - struct nilfs_direct *direct; __u64 key, lastkey; - direct = (struct nilfs_direct *)bmap; lastkey = NILFS_DIRECT_KEY_MAX + 1; for (key = NILFS_DIRECT_KEY_MIN; key <= NILFS_DIRECT_KEY_MAX; key++) if (nilfs_direct_get_ptr(direct, key) != @@ -211,15 +204,13 @@ static int nilfs_direct_check_insert(const struct nilfs_bmap *bmap, __u64 key) return key > NILFS_DIRECT_KEY_MAX; } -static int nilfs_direct_gather_data(struct nilfs_bmap *bmap, +static int nilfs_direct_gather_data(struct nilfs_bmap *direct, __u64 *keys, __u64 *ptrs, int nitems) { - struct nilfs_direct *direct; __u64 key; __u64 ptr; int n; - direct = (struct nilfs_direct *)bmap; if (nitems > NILFS_DIRECT_NBLOCKS) nitems = NILFS_DIRECT_NBLOCKS; n = 0; @@ -237,7 +228,6 @@ static int nilfs_direct_gather_data(struct nilfs_bmap *bmap, int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap, __u64 key, __u64 *keys, __u64 *ptrs, int n) { - struct nilfs_direct *direct; __le64 *dptrs; int ret, i, j; @@ -253,8 +243,7 @@ int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap, bmap->b_ops->bop_clear(bmap); /* convert */ - direct = (struct nilfs_direct *)bmap; - dptrs = nilfs_direct_dptrs(direct); + dptrs = nilfs_direct_dptrs(bmap); for (i = 0, j = 0; i < NILFS_DIRECT_NBLOCKS; i++) { if ((j < n) && (i == keys[j])) { dptrs[i] = (i != key) ? @@ -272,7 +261,6 @@ int nilfs_direct_delete_and_convert(struct nilfs_bmap *bmap, static int nilfs_direct_propagate(struct nilfs_bmap *bmap, struct buffer_head *bh) { - struct nilfs_direct *direct = (struct nilfs_direct *)bmap; struct nilfs_palloc_req oldreq, newreq; struct inode *dat; __u64 key; @@ -284,7 +272,7 @@ static int nilfs_direct_propagate(struct nilfs_bmap *bmap, dat = nilfs_bmap_get_dat(bmap); key = nilfs_bmap_data_get_key(bmap, bh); - ptr = nilfs_direct_get_ptr(direct, key); + ptr = nilfs_direct_get_ptr(bmap, key); if (!buffer_nilfs_volatile(bh)) { oldreq.pr_entry_nr = ptr; newreq.pr_entry_nr = ptr; @@ -294,20 +282,20 @@ static int nilfs_direct_propagate(struct nilfs_bmap *bmap, 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.pr_entry_nr); + nilfs_direct_set_ptr(bmap, key, newreq.pr_entry_nr); } else ret = nilfs_dat_mark_dirty(dat, ptr); return ret; } -static int nilfs_direct_assign_v(struct nilfs_direct *direct, +static int nilfs_direct_assign_v(struct nilfs_bmap *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); + struct inode *dat = nilfs_bmap_get_dat(direct); union nilfs_bmap_ptr_req req; int ret; @@ -321,7 +309,7 @@ static int nilfs_direct_assign_v(struct nilfs_direct *direct, return ret; } -static int nilfs_direct_assign_p(struct nilfs_direct *direct, +static int nilfs_direct_assign_p(struct nilfs_bmap *direct, __u64 key, __u64 ptr, struct buffer_head **bh, sector_t blocknr, @@ -340,18 +328,16 @@ static int nilfs_direct_assign(struct nilfs_bmap *bmap, sector_t blocknr, union nilfs_binfo *binfo) { - struct nilfs_direct *direct; __u64 key; __u64 ptr; - direct = (struct nilfs_direct *)bmap; key = nilfs_bmap_data_get_key(bmap, *bh); if (unlikely(key > NILFS_DIRECT_KEY_MAX)) { printk(KERN_CRIT "%s: invalid key: %llu\n", __func__, (unsigned long long)key); return -EINVAL; } - ptr = nilfs_direct_get_ptr(direct, key); + ptr = nilfs_direct_get_ptr(bmap, key); if (unlikely(ptr == NILFS_BMAP_INVALID_PTR)) { printk(KERN_CRIT "%s: invalid pointer: %llu\n", __func__, (unsigned long long)ptr); @@ -359,8 +345,8 @@ static int nilfs_direct_assign(struct nilfs_bmap *bmap, } return NILFS_BMAP_USE_VBN(bmap) ? - nilfs_direct_assign_v(direct, key, ptr, bh, blocknr, binfo) : - nilfs_direct_assign_p(direct, key, ptr, bh, blocknr, binfo); + nilfs_direct_assign_v(bmap, key, ptr, bh, blocknr, binfo) : + nilfs_direct_assign_p(bmap, key, ptr, bh, blocknr, binfo); } static const struct nilfs_bmap_operations nilfs_direct_ops = { |