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authorDavid Howells <dhowells@redhat.com>2008-02-07 00:15:39 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 08:42:28 -0800
commitd0b079483dd4cf6373f0ff234d5fdaef80c9588f (patch)
tree8f222250ca750d370238b07111ec4f7ddc989a9c /fs/freevxfs/vxfs_inode.c
parent17f95a7b4416a2c61e35f51b29eaaf1818fb5d7d (diff)
downloadop-kernel-dev-d0b079483dd4cf6373f0ff234d5fdaef80c9588f.zip
op-kernel-dev-d0b079483dd4cf6373f0ff234d5fdaef80c9588f.tar.gz
iget: stop FreeVXFS from using iget() and read_inode()
Stop the FreeVXFS filesystem from using iget() and read_inode(). Replace vxfs_read_inode() with vxfs_iget(), and call that instead of iget(). vxfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. vxfs_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: 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/freevxfs/vxfs_inode.c')
-rw-r--r--fs/freevxfs/vxfs_inode.c45
1 files changed, 29 insertions, 16 deletions
diff --git a/fs/freevxfs/vxfs_inode.c b/fs/freevxfs/vxfs_inode.c
index d1f7c5b..ad88d23 100644
--- a/fs/freevxfs/vxfs_inode.c
+++ b/fs/freevxfs/vxfs_inode.c
@@ -129,7 +129,7 @@ fail:
* Description:
* Search the for inode number @ino in the filesystem
* described by @sbp. Use the specified inode table (@ilistp).
- * Returns the matching VxFS inode on success, else a NULL pointer.
+ * Returns the matching VxFS inode on success, else an error code.
*/
static struct vxfs_inode_info *
__vxfs_iget(ino_t ino, struct inode *ilistp)
@@ -157,12 +157,12 @@ __vxfs_iget(ino_t ino, struct inode *ilistp)
}
printk(KERN_WARNING "vxfs: error on page %p\n", pp);
- return NULL;
+ return ERR_CAST(pp);
fail:
printk(KERN_WARNING "vxfs: unable to read inode %ld\n", (unsigned long)ino);
vxfs_put_page(pp);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
/**
@@ -178,7 +178,10 @@ fail:
struct vxfs_inode_info *
vxfs_stiget(struct super_block *sbp, ino_t ino)
{
- return __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
+ struct vxfs_inode_info *vip;
+
+ vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_stilist);
+ return IS_ERR(vip) ? NULL : vip;
}
/**
@@ -282,23 +285,32 @@ vxfs_put_fake_inode(struct inode *ip)
}
/**
- * vxfs_read_inode - fill in inode information
- * @ip: inode pointer to fill
+ * vxfs_iget - get an inode
+ * @sbp: the superblock to get the inode for
+ * @ino: the number of the inode to get
*
* Description:
- * vxfs_read_inode reads the disk inode for @ip and fills
- * in all relevant fields in @ip.
+ * vxfs_read_inode creates an inode, reads the disk inode for @ino and fills
+ * in all relevant fields in the new inode.
*/
-void
-vxfs_read_inode(struct inode *ip)
+struct inode *
+vxfs_iget(struct super_block *sbp, ino_t ino)
{
- struct super_block *sbp = ip->i_sb;
struct vxfs_inode_info *vip;
const struct address_space_operations *aops;
- ino_t ino = ip->i_ino;
-
- if (!(vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist)))
- return;
+ struct inode *ip;
+
+ ip = iget_locked(sbp, ino);
+ if (!ip)
+ return ERR_PTR(-ENOMEM);
+ if (!(ip->i_state & I_NEW))
+ return ip;
+
+ vip = __vxfs_iget(ino, VXFS_SBI(sbp)->vsi_ilist);
+ if (IS_ERR(vip)) {
+ iget_failed(ip);
+ return ERR_CAST(vip);
+ }
vxfs_iinit(ip, vip);
@@ -323,7 +335,8 @@ vxfs_read_inode(struct inode *ip)
} else
init_special_inode(ip, ip->i_mode, old_decode_dev(vip->vii_rdev));
- return;
+ unlock_new_inode(ip);
+ return ip;
}
/**
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