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authorDavid Howells <dhowells@redhat.com>2008-02-07 00:15:47 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-07 08:42:29 -0800
commitb8e1343f67460554ca5321956c440cc064e9889b (patch)
tree91611e8ab0d1f486186de660059f10506ff75690 /fs/sysv/inode.c
parent78cc9120003d7847ef1abebb771a708c7ae51ffd (diff)
downloadop-kernel-dev-b8e1343f67460554ca5321956c440cc064e9889b.zip
op-kernel-dev-b8e1343f67460554ca5321956c440cc064e9889b.tar.gz
iget: stop the SYSV filesystem from using iget() and read_inode()
Stop the SYSV filesystem from using iget() and read_inode(). Replace sysv_read_inode() with sysv_iget(), and call that instead of iget(). sysv_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. [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/sysv/inode.c')
-rw-r--r--fs/sysv/inode.c25
1 files changed, 16 insertions, 9 deletions
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 81ec6c5..c5d60de 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -169,20 +169,27 @@ void sysv_set_inode(struct inode *inode, dev_t rdev)
init_special_inode(inode, inode->i_mode, rdev);
}
-static void sysv_read_inode(struct inode *inode)
+struct inode *sysv_iget(struct super_block *sb, unsigned int ino)
{
- struct super_block * sb = inode->i_sb;
struct sysv_sb_info * sbi = SYSV_SB(sb);
struct buffer_head * bh;
struct sysv_inode * raw_inode;
struct sysv_inode_info * si;
- unsigned int block, ino = inode->i_ino;
+ struct inode *inode;
+ unsigned int block;
if (!ino || ino > sbi->s_ninodes) {
printk("Bad inode number on dev %s: %d is out of range\n",
- inode->i_sb->s_id, ino);
- goto bad_inode;
+ sb->s_id, ino);
+ return ERR_PTR(-EIO);
}
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
+
raw_inode = sysv_raw_inode(sb, ino, &bh);
if (!raw_inode) {
printk("Major problem: unable to read inode from dev %s\n",
@@ -214,11 +221,12 @@ static void sysv_read_inode(struct inode *inode)
old_decode_dev(fs32_to_cpu(sbi, si->i_data[0])));
else
sysv_set_inode(inode, 0);
- return;
+ unlock_new_inode(inode);
+ return inode;
bad_inode:
- make_bad_inode(inode);
- return;
+ iget_failed(inode);
+ return ERR_PTR(-EIO);
}
static struct buffer_head * sysv_update_inode(struct inode * inode)
@@ -328,7 +336,6 @@ static void init_once(struct kmem_cache *cachep, void *p)
const struct super_operations sysv_sops = {
.alloc_inode = sysv_alloc_inode,
.destroy_inode = sysv_destroy_inode,
- .read_inode = sysv_read_inode,
.write_inode = sysv_write_inode,
.delete_inode = sysv_delete_inode,
.put_super = sysv_put_super,
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