From b8e1343f67460554ca5321956c440cc064e9889b Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 7 Feb 2008 00:15:47 -0800 Subject: 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 Acked-by: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/sysv/inode.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) (limited to 'fs/sysv/inode.c') diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c index 81ec6c548c07..c5d60de0658f 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, -- cgit v1.2.3