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iget: stop CIFS from using iget() and read_inode()

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Stop the CIFS filesystem from using iget() and read_inode().  Replace
cifs_read_inode() with cifs_iget(), and call that instead of iget().
cifs_iget() then uses iget_locked() directly and returns a proper error code
instead of an inode in the event of an error.

cifs_read_super() now returns any error incurred when getting the root inode
instead of ENOMEM.

cifs_iget() needs examining.  The comment "can not call macro FreeXid here
since in a void func" is no longer true.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Steven French <sfrench@us.ibm.com>
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>
This commit is contained in:
David Howells
2008-02-07 00:15:33 -08:00
committed by Linus Torvalds
parent e33ab086ae
commit ce634ab28e
3 changed files with 24 additions and 7 deletions
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22
fs/cifs/inode.c
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@@ -586,10 +586,18 @@ static const struct inode_operations cifs_ipc_inode_ops = {
};
/* gets root inode */
void cifs_read_inode(struct inode *inode)
struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
{
int xid, rc;
int xid;
struct cifs_sb_info *cifs_sb;
struct inode *inode;
long rc;
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
return inode;
cifs_sb = CIFS_SB(inode->i_sb);
xid = GetXid();
@@ -606,10 +614,18 @@ void cifs_read_inode(struct inode *inode)
inode->i_fop = &simple_dir_operations;
inode->i_uid = cifs_sb->mnt_uid;
inode->i_gid = cifs_sb->mnt_gid;
_FreeXid(xid);
iget_failed(inode);
return ERR_PTR(rc);
}
/* can not call macro FreeXid here since in a void func */
unlock_new_inode(inode);
/* can not call macro FreeXid here since in a void func
* TODO: This is no longer true
*/
_FreeXid(xid);
return inode;
}
int cifs_unlink(struct inode *inode, struct dentry *direntry)