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-rw-r--r--fs/gfs2/dir.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h
index 8fd4dc0f700..42b3a1f34de 100644
--- a/fs/gfs2/dir.h
+++ b/fs/gfs2/dir.h
@@ -32,7 +32,7 @@ int gfs2_dir_search(struct inode *dir, const struct qstr *filename,
32int gfs2_dir_add(struct inode *inode, const struct qstr *filename, 32int gfs2_dir_add(struct inode *inode, const struct qstr *filename,
33 const struct gfs2_inum *inum, unsigned int type); 33 const struct gfs2_inum *inum, unsigned int type);
34int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *filename); 34int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *filename);
35int gfs2_dir_read(struct gfs2_inode *dip, uint64_t * offset, void *opaque, 35int gfs2_dir_read(struct inode *inode, uint64_t * offset, void *opaque,
36 gfs2_filldir_t filldir); 36 gfs2_filldir_t filldir);
37int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, 37int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
38 struct gfs2_inum *new_inum, unsigned int new_type); 38 struct gfs2_inum *new_inum, unsigned int new_type);
@@ -44,6 +44,19 @@ int gfs2_diradd_alloc_required(struct inode *dir,
44int gfs2_dir_get_buffer(struct gfs2_inode *ip, uint64_t block, int new, 44int gfs2_dir_get_buffer(struct gfs2_inode *ip, uint64_t block, int new,
45 struct buffer_head **bhp); 45 struct buffer_head **bhp);
46 46
47static inline uint32_t gfs2_disk_hash(const char *data, int len)
48{
49 return crc32_le(0xFFFFFFFF, data, len) ^ 0xFFFFFFFF;
50}
51
52
53static inline void gfs2_str2qstr(struct qstr *name, const char *fname)
54{
55 name->name = fname;
56 name->len = strlen(fname);
57 name->hash = gfs2_disk_hash(name->name, name->len);
58}
59
47/* N.B. This probably ought to take inum & type as args as well */ 60/* N.B. This probably ought to take inum & type as args as well */
48static inline void gfs2_qstr2dirent(const struct qstr *name, u16 reclen, struct gfs2_dirent *dent) 61static inline void gfs2_qstr2dirent(const struct qstr *name, u16 reclen, struct gfs2_dirent *dent)
49{ 62{