[readdir] convert ubifs
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 605af51..6b4947f 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -346,19 +346,18 @@
* This means that UBIFS cannot support NFS which requires full
* 'seekdir()'/'telldir()' support.
*/
-static int ubifs_readdir(struct file *file, void *dirent, filldir_t filldir)
+static int ubifs_readdir(struct file *file, struct dir_context *ctx)
{
- int err, over = 0;
- loff_t pos = file->f_pos;
+ int err;
struct qstr nm;
union ubifs_key key;
struct ubifs_dent_node *dent;
struct inode *dir = file_inode(file);
struct ubifs_info *c = dir->i_sb->s_fs_info;
- dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, pos);
+ dbg_gen("dir ino %lu, f_pos %#llx", dir->i_ino, ctx->pos);
- if (pos > UBIFS_S_KEY_HASH_MASK || pos == 2)
+ if (ctx->pos > UBIFS_S_KEY_HASH_MASK || ctx->pos == 2)
/*
* The directory was seek'ed to a senseless position or there
* are no more entries.
@@ -384,19 +383,9 @@
file->f_version = 1;
/* File positions 0 and 1 correspond to "." and ".." */
- if (pos == 0) {
+ if (ctx->pos < 2) {
ubifs_assert(!file->private_data);
- over = filldir(dirent, ".", 1, 0, dir->i_ino, DT_DIR);
- if (over)
- return 0;
- file->f_pos = pos = 1;
- }
-
- if (pos == 1) {
- ubifs_assert(!file->private_data);
- over = filldir(dirent, "..", 2, 1,
- parent_ino(file->f_path.dentry), DT_DIR);
- if (over)
+ if (!dir_emit_dots(file, ctx))
return 0;
/* Find the first entry in TNC and save it */
@@ -408,7 +397,7 @@
goto out;
}
- file->f_pos = pos = key_hash_flash(c, &dent->key);
+ ctx->pos = key_hash_flash(c, &dent->key);
file->private_data = dent;
}
@@ -416,16 +405,16 @@
if (!dent) {
/*
* The directory was seek'ed to and is now readdir'ed.
- * Find the entry corresponding to @pos or the closest one.
+ * Find the entry corresponding to @ctx->pos or the closest one.
*/
- dent_key_init_hash(c, &key, dir->i_ino, pos);
+ dent_key_init_hash(c, &key, dir->i_ino, ctx->pos);
nm.name = NULL;
dent = ubifs_tnc_next_ent(c, &key, &nm);
if (IS_ERR(dent)) {
err = PTR_ERR(dent);
goto out;
}
- file->f_pos = pos = key_hash_flash(c, &dent->key);
+ ctx->pos = key_hash_flash(c, &dent->key);
file->private_data = dent;
}
@@ -437,10 +426,9 @@
ubifs_inode(dir)->creat_sqnum);
nm.len = le16_to_cpu(dent->nlen);
- over = filldir(dirent, dent->name, nm.len, pos,
+ if (!dir_emit(ctx, dent->name, nm.len,
le64_to_cpu(dent->inum),
- vfs_dent_type(dent->type));
- if (over)
+ vfs_dent_type(dent->type)))
return 0;
/* Switch to the next entry */
@@ -453,17 +441,9 @@
}
kfree(file->private_data);
- file->f_pos = pos = key_hash_flash(c, &dent->key);
+ ctx->pos = key_hash_flash(c, &dent->key);
file->private_data = dent;
cond_resched();
-
- if (file->f_version == 0)
- /*
- * The file was seek'ed meanwhile, lets return and start
- * reading direntries from the new position on the next
- * invocation.
- */
- return 0;
}
out:
@@ -475,15 +455,10 @@
kfree(file->private_data);
file->private_data = NULL;
/* 2 is a special value indicating that there are no more direntries */
- file->f_pos = 2;
+ ctx->pos = 2;
return 0;
}
-static loff_t ubifs_dir_llseek(struct file *file, loff_t offset, int whence)
-{
- return generic_file_llseek(file, offset, whence);
-}
-
/* Free saved readdir() state when the directory is closed */
static int ubifs_dir_release(struct inode *dir, struct file *file)
{
@@ -1201,10 +1176,10 @@
};
const struct file_operations ubifs_dir_operations = {
- .llseek = ubifs_dir_llseek,
+ .llseek = generic_file_llseek,
.release = ubifs_dir_release,
.read = generic_read_dir,
- .readdir = ubifs_readdir,
+ .iterate = ubifs_readdir,
.fsync = ubifs_fsync,
.unlocked_ioctl = ubifs_ioctl,
#ifdef CONFIG_COMPAT