diff options
Diffstat (limited to 'fs/gfs2/dir.h')
| -rw-r--r-- | fs/gfs2/dir.h | 52 |
1 files changed, 37 insertions, 15 deletions
diff --git a/fs/gfs2/dir.h b/fs/gfs2/dir.h index 8a468cac932..126c65dda02 100644 --- a/fs/gfs2/dir.h +++ b/fs/gfs2/dir.h @@ -11,28 +11,47 @@ #define __DIR_DOT_H__ #include <linux/dcache.h> +#include <linux/crc32.h> struct inode; struct gfs2_inode; struct gfs2_inum; +struct buffer_head; +struct gfs2_dirent; -struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *filename); -int gfs2_dir_check(struct inode *dir, const struct qstr *filename, - const struct gfs2_inode *ip); -int gfs2_dir_add(struct inode *inode, const struct qstr *filename, - const struct gfs2_inode *ip, unsigned int type); -int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *filename); -int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque, - filldir_t filldir); -int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, - const struct gfs2_inode *nip, unsigned int new_type); +struct gfs2_diradd { + unsigned nr_blocks; + struct gfs2_dirent *dent; + struct buffer_head *bh; +}; -int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip); +extern struct inode *gfs2_dir_search(struct inode *dir, + const struct qstr *filename, + bool fail_on_exist); +extern int gfs2_dir_check(struct inode *dir, const struct qstr *filename, + const struct gfs2_inode *ip); +extern int gfs2_dir_add(struct inode *inode, const struct qstr *filename, + const struct gfs2_inode *ip, struct gfs2_diradd *da); +static inline void gfs2_dir_no_add(struct gfs2_diradd *da) +{ + if (da->bh) + brelse(da->bh); + da->bh = NULL; +} +extern int gfs2_dir_del(struct gfs2_inode *dip, const struct dentry *dentry); +extern int gfs2_dir_read(struct inode *inode, struct dir_context *ctx, + struct file_ra_state *f_ra); +extern int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename, + const struct gfs2_inode *nip, unsigned int new_type); -int gfs2_diradd_alloc_required(struct inode *dir, - const struct qstr *filename); -int gfs2_dir_get_new_buffer(struct gfs2_inode *ip, u64 block, - struct buffer_head **bhp); +extern int gfs2_dir_exhash_dealloc(struct gfs2_inode *dip); + +extern int gfs2_diradd_alloc_required(struct inode *dir, + const struct qstr *filename, + struct gfs2_diradd *da); +extern int gfs2_dir_get_new_buffer(struct gfs2_inode *ip, u64 block, + struct buffer_head **bhp); +extern void gfs2_dir_hash_inval(struct gfs2_inode *ip); static inline u32 gfs2_disk_hash(const char *data, int len) { @@ -60,4 +79,7 @@ static inline void gfs2_qstr2dirent(const struct qstr *name, u16 reclen, struct memcpy(dent + 1, name->name, name->len); } +extern struct qstr gfs2_qdot; +extern struct qstr gfs2_qdotdot; + #endif /* __DIR_DOT_H__ */ |