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

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

affs_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>
Cc: Roman Zippel <zippel@linux-m68k.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>
This commit is contained in:
David Howells 2008-02-07 00:15:29 -08:00 committed by Linus Torvalds
parent 69840b0d06
commit 210f855963
5 changed files with 32 additions and 19 deletions
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3
fs/affs/affs.h
View File

@ -174,7 +174,8 @@ extern void affs_put_inode(struct inode *inode);
extern void affs_drop_inode(struct inode *inode);
extern void affs_delete_inode(struct inode *inode);
extern void affs_clear_inode(struct inode *inode);
extern void affs_read_inode(struct inode *inode);
extern struct inode *affs_iget(struct super_block *sb,
unsigned long ino);
extern int affs_write_inode(struct inode *inode, int);
extern int affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s32 type);

6
fs/affs/amigaffs.c
View File

@ -170,9 +170,11 @@ affs_remove_link(struct dentry *dentry)
if (!link_bh)
goto done;
dir = iget(sb, be32_to_cpu(AFFS_TAIL(sb, link_bh)->parent));
if (!dir)
dir = affs_iget(sb, be32_to_cpu(AFFS_TAIL(sb, link_bh)->parent));
if (IS_ERR(dir)) {
retval = PTR_ERR(dir);
goto done;
}
affs_lock_dir(dir);
affs_fix_dcache(dentry, link_ino);

20
fs/affs/inode.c
View File

@ -15,20 +15,25 @@
extern const struct inode_operations affs_symlink_inode_operations;
extern struct timezone sys_tz;
void
affs_read_inode(struct inode *inode)
struct inode *affs_iget(struct super_block *sb, unsigned long ino)
{
struct super_block *sb = inode->i_sb;
struct affs_sb_info *sbi = AFFS_SB(sb);
struct buffer_head *bh;
struct affs_head *head;
struct affs_tail *tail;
struct inode *inode;
u32 block;
u32 size;
u32 prot;
u16 id;
pr_debug("AFFS: read_inode(%lu)\n",inode->i_ino);
inode = iget_locked(sb, ino);
if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
return inode;
pr_debug("AFFS: affs_iget(%lu)\n", inode->i_ino);
block = inode->i_ino;
bh = affs_bread(sb, block);
@ -154,12 +159,13 @@ affs_read_inode(struct inode *inode)
sys_tz.tz_minuteswest * 60;
inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec = inode->i_atime.tv_nsec = 0;
affs_brelse(bh);
return;
unlock_new_inode(inode);
return inode;
bad_inode:
make_bad_inode(inode);
affs_brelse(bh);
return;
iget_failed(inode);
return ERR_PTR(-EIO);
}
int

10
fs/affs/namei.c
View File

@ -208,9 +208,8 @@ affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
affs_lock_dir(dir);
bh = affs_find_entry(dir, dentry);
affs_unlock_dir(dir);
if (IS_ERR(bh)) {
if (IS_ERR(bh))
return ERR_CAST(bh);
}
if (bh) {
u32 ino = bh->b_blocknr;
@ -223,10 +222,9 @@ affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
ino = be32_to_cpu(AFFS_TAIL(sb, bh)->original);
}
affs_brelse(bh);
inode = iget(sb, ino);
if (!inode) {
return ERR_PTR(-EACCES);
}
inode = affs_iget(sb, ino);
if (IS_ERR(inode))
return ERR_PTR(PTR_ERR(inode));
}
dentry->d_op = AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations;
d_add(dentry, inode);

12
fs/affs/super.c
View File

@ -113,7 +113,6 @@ static void destroy_inodecache(void)
static const struct super_operations affs_sops = {
.alloc_inode = affs_alloc_inode,
.destroy_inode = affs_destroy_inode,
.read_inode = affs_read_inode,
.write_inode = affs_write_inode,
.put_inode = affs_put_inode,
.drop_inode = affs_drop_inode,
@ -271,6 +270,7 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
unsigned long mount_flags;
int tmp_flags; /* fix remount prototype... */
u8 sig[4];
int ret = -EINVAL;
pr_debug("AFFS: read_super(%s)\n",data ? (const char *)data : "no options");
@ -444,7 +444,12 @@ got_root:
/* set up enough so that it can read an inode */
root_inode = iget(sb, root_block);
root_inode = affs_iget(sb, root_block);
if (IS_ERR(root_inode)) {
ret = PTR_ERR(root_inode);
goto out_error_noinode;
}
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root) {
printk(KERN_ERR "AFFS: Get root inode failed\n");
@ -461,12 +466,13 @@ got_root:
out_error:
if (root_inode)
iput(root_inode);
out_error_noinode:
kfree(sbi->s_bitmap);
affs_brelse(root_bh);
kfree(sbi->s_prefix);
kfree(sbi);
sb->s_fs_info = NULL;
return -EINVAL;
return ret;
}
static int