From 52fcf7032935b33158e3998ed399cac97447ab8d Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 7 Feb 2008 00:15:35 -0800 Subject: iget: stop EXT2 from using iget() and read_inode() Stop the EXT2 filesystem from using iget() and read_inode(). Replace ext2_read_inode() with ext2_iget(), and call that instead of iget(). ext2_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ext2_fill_super() returns any error incurred when getting the root inode instead of EINVAL. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: David Howells Acked-by: "Theodore Ts'o" Cc: Acked-by: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext2/inode.c | 29 +++++++++++++++++++++-------- 1 file changed, 21 insertions(+), 8 deletions(-) (limited to 'fs/ext2/inode.c') diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c index 03978ec2a91..c6200680542 100644 --- a/fs/ext2/inode.c +++ b/fs/ext2/inode.c @@ -1181,22 +1181,33 @@ void ext2_get_inode_flags(struct ext2_inode_info *ei) ei->i_flags |= EXT2_DIRSYNC_FL; } -void ext2_read_inode (struct inode * inode) +struct inode *ext2_iget (struct super_block *sb, unsigned long ino) { - struct ext2_inode_info *ei = EXT2_I(inode); - ino_t ino = inode->i_ino; + struct ext2_inode_info *ei; struct buffer_head * bh; - struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh); + struct ext2_inode *raw_inode; + struct inode *inode; + long ret = -EIO; int n; + inode = iget_locked(sb, ino); + if (!inode) + return ERR_PTR(-ENOMEM); + if (!(inode->i_state & I_NEW)) + return inode; + + ei = EXT2_I(inode); #ifdef CONFIG_EXT2_FS_POSIX_ACL ei->i_acl = EXT2_ACL_NOT_CACHED; ei->i_default_acl = EXT2_ACL_NOT_CACHED; #endif ei->i_block_alloc_info = NULL; - if (IS_ERR(raw_inode)) + raw_inode = ext2_get_inode(inode->i_sb, ino, &bh); + if (IS_ERR(raw_inode)) { + ret = PTR_ERR(raw_inode); goto bad_inode; + } inode->i_mode = le16_to_cpu(raw_inode->i_mode); inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); @@ -1220,6 +1231,7 @@ void ext2_read_inode (struct inode * inode) if (inode->i_nlink == 0 && (inode->i_mode == 0 || ei->i_dtime)) { /* this inode is deleted */ brelse (bh); + ret = -ESTALE; goto bad_inode; } inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); @@ -1286,11 +1298,12 @@ void ext2_read_inode (struct inode * inode) } brelse (bh); ext2_set_inode_flags(inode); - return; + unlock_new_inode(inode); + return inode; bad_inode: - make_bad_inode(inode); - return; + iget_failed(inode); + return ERR_PTR(ret); } static int ext2_update_inode(struct inode * inode, int do_sync) -- cgit v1.2.3