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authorAl Viro <viro@zeniv.linux.org.uk>2013-05-22 20:48:09 (GMT)
committerPawel Osmialowski <p.osmialowsk@mcdsrvbld02.digital.local>2015-03-27 13:37:41 (GMT)
commit9c6f5aa2b175b4283f3c8451df6a73062789f5ef (patch)
tree7311e83b189c4538c701f6d9cdd7ccff78de5f7f
parenta4ea0daecb314dbe2e4a3c9408fe8ca2820861c7 (diff)
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convert btrfs
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/btrfs/delayed-inode.c9
-rw-r--r--fs/btrfs/delayed-inode.h3
-rw-r--r--fs/btrfs/inode.c49
3 files changed, 21 insertions, 40 deletions
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index f26f38c..eb34438 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1681,8 +1681,7 @@ int btrfs_should_delete_dir_index(struct list_head *del_list,
* btrfs_readdir_delayed_dir_index - read dir info stored in the delayed tree
*
*/
-int btrfs_readdir_delayed_dir_index(struct file *filp, void *dirent,
- filldir_t filldir,
+int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
struct list_head *ins_list)
{
struct btrfs_dir_item *di;
@@ -1704,13 +1703,13 @@ int btrfs_readdir_delayed_dir_index(struct file *filp, void *dirent,
list_for_each_entry_safe(curr, next, ins_list, readdir_list) {
list_del(&curr->readdir_list);
- if (curr->key.offset < filp->f_pos) {
+ if (curr->key.offset < ctx->pos) {
if (atomic_dec_and_test(&curr->refs))
kfree(curr);
continue;
}
- filp->f_pos = curr->key.offset;
+ ctx->pos = curr->key.offset;
di = (struct btrfs_dir_item *)curr->data;
name = (char *)(di + 1);
@@ -1719,7 +1718,7 @@ int btrfs_readdir_delayed_dir_index(struct file *filp, void *dirent,
d_type = btrfs_filetype_table[di->type];
btrfs_disk_key_to_cpu(&location, &di->location);
- over = filldir(dirent, name, name_len, curr->key.offset,
+ over = !dir_emit(ctx, name, name_len,
location.objectid, d_type);
if (atomic_dec_and_test(&curr->refs))
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index 1d5c5f7..a4b38f9 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -139,8 +139,7 @@ void btrfs_put_delayed_items(struct list_head *ins_list,
struct list_head *del_list);
int btrfs_should_delete_dir_index(struct list_head *del_list,
u64 index);
-int btrfs_readdir_delayed_dir_index(struct file *filp, void *dirent,
- filldir_t filldir,
+int btrfs_readdir_delayed_dir_index(struct dir_context *ctx,
struct list_head *ins_list);
/* for init */
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 187911f..c8ac1bd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5151,10 +5151,9 @@ unsigned char btrfs_filetype_table[] = {
DT_UNKNOWN, DT_REG, DT_DIR, DT_CHR, DT_BLK, DT_FIFO, DT_SOCK, DT_LNK
};
-static int btrfs_real_readdir(struct file *filp, void *dirent,
- filldir_t filldir)
+static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
{
- struct inode *inode = file_inode(filp);
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_item *item;
struct btrfs_dir_item *di;
@@ -5175,29 +5174,15 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
char tmp_name[32];
char *name_ptr;
int name_len;
- int is_curr = 0; /* filp->f_pos points to the current index? */
+ int is_curr = 0; /* ctx->pos points to the current index? */
/* FIXME, use a real flag for deciding about the key type */
if (root->fs_info->tree_root == root)
key_type = BTRFS_DIR_ITEM_KEY;
- /* special case for "." */
- if (filp->f_pos == 0) {
- over = filldir(dirent, ".", 1,
- filp->f_pos, btrfs_ino(inode), DT_DIR);
- if (over)
- return 0;
- filp->f_pos = 1;
- }
- /* special case for .., just use the back ref */
- if (filp->f_pos == 1) {
- u64 pino = parent_ino(filp->f_path.dentry);
- over = filldir(dirent, "..", 2,
- filp->f_pos, pino, DT_DIR);
- if (over)
- return 0;
- filp->f_pos = 2;
- }
+ if (!dir_emit_dots(file, ctx))
+ return 0;
+
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
@@ -5211,7 +5196,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
}
btrfs_set_key_type(&key, key_type);
- key.offset = filp->f_pos;
+ key.offset = ctx->pos;
key.objectid = btrfs_ino(inode);
ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
@@ -5237,14 +5222,14 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
break;
if (btrfs_key_type(&found_key) != key_type)
break;
- if (found_key.offset < filp->f_pos)
+ if (found_key.offset < ctx->pos)
goto next;
if (key_type == BTRFS_DIR_INDEX_KEY &&
btrfs_should_delete_dir_index(&del_list,
found_key.offset))
goto next;
- filp->f_pos = found_key.offset;
+ ctx->pos = found_key.offset;
is_curr = 1;
di = btrfs_item_ptr(leaf, slot, struct btrfs_dir_item);
@@ -5288,9 +5273,8 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
over = 0;
goto skip;
}
- over = filldir(dirent, name_ptr, name_len,
- found_key.offset, location.objectid,
- d_type);
+ over = !dir_emit(ctx, name_ptr, name_len,
+ location.objectid, d_type);
skip:
if (name_ptr != tmp_name)
@@ -5309,9 +5293,8 @@ next:
if (key_type == BTRFS_DIR_INDEX_KEY) {
if (is_curr)
- filp->f_pos++;
- ret = btrfs_readdir_delayed_dir_index(filp, dirent, filldir,
- &ins_list);
+ ctx->pos++;
+ ret = btrfs_readdir_delayed_dir_index(ctx, &ins_list);
if (ret)
goto nopos;
}
@@ -5322,9 +5305,9 @@ next:
* 32-bit glibc will use getdents64, but then strtol -
* so the last number we can serve is this.
*/
- filp->f_pos = 0x7fffffff;
+ ctx->pos = 0x7fffffff;
else
- filp->f_pos++;
+ ctx->pos++;
nopos:
ret = 0;
err:
@@ -8745,7 +8728,7 @@ static const struct inode_operations btrfs_dir_ro_inode_operations = {
static const struct file_operations btrfs_dir_file_operations = {
.llseek = generic_file_llseek,
.read = generic_read_dir,
- .readdir = btrfs_real_readdir,
+ .iterate = btrfs_real_readdir,
.unlocked_ioctl = btrfs_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = btrfs_ioctl,