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hfsplus: remove the rsrc_inodes list

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We never walk the list - the only reason for it is to make the resource fork
inodes appear hashed to the writeback code.  Borrow a trick from JFS to do
that without needing a list head.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>
This commit is contained in:
Christoph Hellwig 2010-10-01 05:44:02 +02:00 committed by Christoph Hellwig
parent 66e5db05bb
commit 58a818f532
3 changed files with 9 additions and 4 deletions
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2
fs/hfsplus/hfsplus_fs.h
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@ -145,8 +145,6 @@ struct hfsplus_sb_info {
int part, session;
unsigned long flags;
struct hlist_head rsrc_inodes;
};
#define HFSPLUS_SB_WRITEBACKUP 0x0001

10
fs/hfsplus/inode.c
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@ -204,7 +204,15 @@ static struct dentry *hfsplus_file_lookup(struct inode *dir, struct dentry *dent
hip->rsrc_inode = dir;
HFSPLUS_I(dir)->rsrc_inode = inode;
igrab(dir);
hlist_add_head(&inode->i_hash, &HFSPLUS_SB(sb)->rsrc_inodes);
/*
* __mark_inode_dirty expects inodes to be hashed. Since we don't
* want resource fork inodes in the regular inode space, we make them
* appear hashed, but do not put on any lists. hlist_del()
* will work fine and require no locking.
*/
inode->i_hash.pprev = &inode->i_hash.next;
mark_inode_dirty(inode);
out:
d_add(dentry, inode);

1
fs/hfsplus/super.c
View File

@ -318,7 +318,6 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
sb->s_fs_info = sbi;
INIT_HLIST_HEAD(&sbi->rsrc_inodes);
mutex_init(&sbi->alloc_mutex);
hfsplus_fill_defaults(sbi);
if (!hfsplus_parse_options(data, sbi)) {