fs/nilfs2/direct.c

3  * NILFS direct block pointer.
13 #include "direct.h"
17 static inline __le64 *nilfs_direct_dptrs(const struct nilfs_bmap *direct)
20 		((struct nilfs_direct_node *)direct->b_u.u_data + 1);
24 nilfs_direct_get_ptr(const struct nilfs_bmap *direct, __u64 key)
26 	return le64_to_cpu(*(nilfs_direct_dptrs(direct) + key));
29 static inline void nilfs_direct_set_ptr(struct nilfs_bmap *direct,
32 	*(nilfs_direct_dptrs(direct) + key) = cpu_to_le64(ptr);
35 static int nilfs_direct_lookup(const struct nilfs_bmap *direct,
42 	ptr = nilfs_direct_get_ptr(direct, key);
50 static int nilfs_direct_lookup_contig(const struct nilfs_bmap *direct,
61 	ptr = nilfs_direct_get_ptr(direct, key);
65 	if (NILFS_BMAP_USE_VBN(direct)) {
66 		dat = nilfs_bmap_get_dat(direct);
76 		     (ptr2 = nilfs_direct_get_ptr(direct, key + cnt)) !=
98 nilfs_direct_find_target_v(const struct nilfs_bmap *direct, __u64 key)
102 	ptr = nilfs_bmap_find_target_seq(direct, key);
108 	return nilfs_bmap_find_target_in_group(direct);
169 static int nilfs_direct_seek_key(const struct nilfs_bmap *direct, __u64 start,
175 		if (nilfs_direct_get_ptr(direct, key) !=
184 static int nilfs_direct_last_key(const struct nilfs_bmap *direct, __u64 *keyp)
190 		if (nilfs_direct_get_ptr(direct, key) !=
207 static int nilfs_direct_gather_data(struct nilfs_bmap *direct,
218 		ptr = nilfs_direct_get_ptr(direct, key);
292 static int nilfs_direct_assign_v(struct nilfs_bmap *direct,
298 	struct inode *dat = nilfs_bmap_get_dat(direct);
312 static int nilfs_direct_assign_p(struct nilfs_bmap *direct,
318 	nilfs_direct_set_ptr(direct, key, blocknr);