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fix the treatment of jfs special inodes
We used to put them on a single list, without any locking. Racy. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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@ -58,9 +58,9 @@
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/*
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* __mark_inode_dirty expects inodes to be hashed. Since we don't want
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* special inodes in the fileset inode space, we hash them to a dummy head
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* special inodes in the fileset inode space, we make them appear hashed,
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* but do not put on any lists.
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*/
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static HLIST_HEAD(aggregate_hash);
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/*
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* imap locks
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@ -496,7 +496,11 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
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/* release the page */
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release_metapage(mp);
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hlist_add_head(&ip->i_hash, &aggregate_hash);
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/*
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* that will look hashed, but won't be on any list; hlist_del()
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* will work fine and require no locking.
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*/
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ip->i_hash.pprev = &ip->i_hash.next;
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return (ip);
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}
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