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authorAl Viro <viro@zeniv.linux.org.uk>2011-11-17 07:10:02 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-09 01:34:39 +0100
commitad2b2c802be2d3e8ed8364fef5ffaddabe448219 (patch)
tree5927c2170cd4edb1d930cabae0c6f0006aa972fd
parentbtrfs: sanitizing ->fs_info, part 5 (diff)
downloadlinux-ad2b2c802be2d3e8ed8364fef5ffaddabe448219.tar.xz
linux-ad2b2c802be2d3e8ed8364fef5ffaddabe448219.zip
btrfs: make open_ctree() return int
It returns either ERR_PTR(-ve) or sb->s_fs_info. The latter can be found by caller just as well, TYVM, no need to return it. Just return -ve or 0... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/btrfs/disk-io.c12
-rw-r--r--fs/btrfs/disk-io.h6
-rw-r--r--fs/btrfs/super.c8
3 files changed, 13 insertions, 13 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 9308c7f13c17..78247522c693 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1880,9 +1880,9 @@ static void free_root_pointers(struct btrfs_fs_info *info, int chunk_root)
}
-struct btrfs_root *open_ctree(struct super_block *sb,
- struct btrfs_fs_devices *fs_devices,
- char *options)
+int open_ctree(struct super_block *sb,
+ struct btrfs_fs_devices *fs_devices,
+ char *options)
{
u32 sectorsize;
u32 nodesize;
@@ -2428,11 +2428,11 @@ retry_root_backup:
if (err) {
close_ctree(tree_root);
free_fs_info(fs_info);
- return ERR_PTR(err);
+ return err;
}
}
- return tree_root;
+ return 0;
fail_trans_kthread:
kthread_stop(fs_info->transaction_kthread);
@@ -2479,7 +2479,7 @@ fail_srcu:
fail:
btrfs_close_devices(fs_info->fs_devices);
free_fs_info(fs_info);
- return ERR_PTR(err);
+ return err;
recovery_tree_root:
if (!btrfs_test_opt(tree_root, RECOVERY))
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 2bb5f59ddf95..6f5f48778b00 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -46,9 +46,9 @@ struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
u64 bytenr, u32 blocksize);
int clean_tree_block(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *buf);
-struct btrfs_root *open_ctree(struct super_block *sb,
- struct btrfs_fs_devices *fs_devices,
- char *options);
+int open_ctree(struct super_block *sb,
+ struct btrfs_fs_devices *fs_devices,
+ char *options);
int close_ctree(struct btrfs_root *root);
int write_ctree_super(struct btrfs_trans_handle *trans,
struct btrfs_root *root, int max_mirrors);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index e9f876a1655b..56e007fd6702 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -604,12 +604,12 @@ static int btrfs_fill_super(struct super_block *sb,
sb->s_flags |= MS_POSIXACL;
#endif
- tree_root = open_ctree(sb, fs_devices, (char *)data);
-
- if (IS_ERR(tree_root)) {
+ err = open_ctree(sb, fs_devices, (char *)data);
+ if (err) {
printk("btrfs: open_ctree failed\n");
- return PTR_ERR(tree_root);
+ return err;
}
+ tree_root = sb->s_fs_info;
fs_info = tree_root->fs_info;
sb->s_fs_info = tree_root;