Currently hostfs issues every time a seekdir(), in fact it has to do this only upon the first call. Also telldir() can be omitted as we can obtain the directory offset from readdir().
Signed-off-by: Richard Weinberger <[email protected]> --- fs/hostfs/hostfs.h | 3 ++- fs/hostfs/hostfs_kern.c | 1 + fs/hostfs/hostfs_user.c | 12 +++++++++--- 3 files changed, 12 insertions(+), 4 deletions(-) diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h index 4fcd40d..00f9c12 100644 --- a/fs/hostfs/hostfs.h +++ b/fs/hostfs/hostfs.h @@ -66,7 +66,8 @@ extern int stat_file(const char *path, struct hostfs_stat *p, int fd); extern int access_file(char *path, int r, int w, int x); extern int open_file(char *path, int r, int w, int append); extern void *open_dir(char *path, int *err_out); -extern char *read_dir(void *stream, unsigned long long *pos, +extern void seek_dir(void *stream, unsigned long long pos); +extern char *read_dir(void *stream, unsigned long long *pos_out, unsigned long long *ino_out, int *len_out, unsigned int *type_out); extern void close_file(void *stream); diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c index fd62cae..968a2b5 100644 --- a/fs/hostfs/hostfs_kern.c +++ b/fs/hostfs/hostfs_kern.c @@ -284,6 +284,7 @@ static int hostfs_readdir(struct file *file, struct dir_context *ctx) if (dir == NULL) return -error; next = ctx->pos; + seek_dir(dir, next); while ((name = read_dir(dir, &next, &ino, &len, &type)) != NULL) { if (!dir_emit(ctx, name, len, ino, type)) break; diff --git a/fs/hostfs/hostfs_user.c b/fs/hostfs/hostfs_user.c index 9765dab..1d1f293 100644 --- a/fs/hostfs/hostfs_user.c +++ b/fs/hostfs/hostfs_user.c @@ -97,21 +97,27 @@ void *open_dir(char *path, int *err_out) return dir; } -char *read_dir(void *stream, unsigned long long *pos, +void seek_dir(void *stream, unsigned long long pos) +{ + DIR *dir = stream; + + seekdir(dir, pos); +} + +char *read_dir(void *stream, unsigned long long *pos_out, unsigned long long *ino_out, int *len_out, unsigned int *type_out) { DIR *dir = stream; struct dirent *ent; - seekdir(dir, *pos); ent = readdir(dir); if (ent == NULL) return NULL; *len_out = strlen(ent->d_name); *ino_out = ent->d_ino; *type_out = ent->d_type; - *pos = telldir(dir); + *pos_out = ent->d_off; return ent->d_name; } -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
