iget: stop EXT4 from using iget() and read_inode()
Stop the EXT4 filesystem from using iget() and read_inode(). Replace
ext4_read_inode() with ext4_iget(), and call that instead of iget().
ext4_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.
ext4_fill_super() returns any error incurred when getting the root inode
instead of EINVAL.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Jan Kara <jack@suse.cz>
Cc: <linux-ext4@vger.kernel.org>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 4fbba60..9477a2b 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -779,12 +779,11 @@
"No reserved GDT blocks, can't resize");
return -EPERM;
}
- inode = iget(sb, EXT4_RESIZE_INO);
- if (!inode || is_bad_inode(inode)) {
+ inode = ext4_iget(sb, EXT4_RESIZE_INO);
+ if (IS_ERR(inode)) {
ext4_warning(sb, __FUNCTION__,
"Error opening resize inode");
- iput(inode);
- return -ENOENT;
+ return PTR_ERR(inode);
}
}