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
------------------------------------------------------------------------------
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