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 <rich...@nod.at> --- 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 ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel