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authorDavid Howells <dhowells@redhat.com>2008-02-07 00:15:35 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 08:42:27 -0800
commit52fcf7032935b33158e3998ed399cac97447ab8d (patch)
tree65d15b7541614ff52e76cabf6c7ac01ac0d95686 /fs/ext2/inode.c
parent298384cd7929a3a14d7b116095973f0d02f5d09e (diff)
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 <dhowells@redhat.com> Acked-by: "Theodore Ts'o" <tytso@mit.edu> 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>
Diffstat (limited to 'fs/ext2/inode.c')
-rw-r--r--fs/ext2/inode.c29
1 files changed, 21 insertions, 8 deletions
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)