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Subject[PATCH 12/16] new helper: inode_fake_hash()
Date
From: Al Viro <viro@zeniv.linux.org.uk>

open-coded in a quite a few places...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/hfs/inode.c | 2 +-
fs/jfs/jfs_imap.c | 8 +-------
fs/jfs/super.c | 2 +-
fs/xfs/xfs_iops.c | 2 +-
include/linux/fs.h | 11 +++++++++++
5 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 2a16111d312f..a2dfa1b2a89c 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -541,7 +541,7 @@ static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
HFS_I(inode)->rsrc_inode = dir;
HFS_I(dir)->rsrc_inode = inode;
igrab(dir);
- hlist_add_fake(&inode->i_hash);
+ inode_fake_hash(inode);
mark_inode_dirty(inode);
dont_mount(dentry);
out:
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index f36ef68905a7..93e8c590ff5c 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -491,13 +491,7 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
/* release the page */
release_metapage(mp);

- /*
- * __mark_inode_dirty expects inodes to be hashed. Since we don't
- * want special inodes in the fileset inode space, we make them
- * appear hashed, but do not put on any lists. hlist_del()
- * will work fine and require no locking.
- */
- hlist_add_fake(&ip->i_hash);
+ inode_fake_hash(ip);

return (ip);
}
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 1b9264fd54b6..5403ece57dba 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -581,7 +581,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
inode->i_ino = 0;
inode->i_size = i_size_read(sb->s_bdev->bd_inode);
inode->i_mapping->a_ops = &jfs_metapage_aops;
- hlist_add_fake(&inode->i_hash);
+ inode_fake_hash(inode);
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);

sbi->direct_inode = inode;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 0fa29f39d658..3a75de777843 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1253,7 +1253,7 @@ xfs_setup_inode(

inode_sb_list_add(inode);
/* make the inode look hashed for the writeback code */
- hlist_add_fake(&inode->i_hash);
+ inode_fake_hash(inode);

inode->i_uid = xfs_uid_to_kuid(ip->i_d.di_uid);
inode->i_gid = xfs_gid_to_kgid(ip->i_d.di_gid);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a42600565925..43941e230e2b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -685,6 +685,17 @@ static inline int inode_unhashed(struct inode *inode)
}

/*
+ * __mark_inode_dirty expects inodes to be hashed. Since we don't
+ * want special inodes in the fileset inode space, we make them
+ * appear hashed, but do not put on any lists. hlist_del()
+ * will work fine and require no locking.
+ */
+static inline void inode_fake_hash(struct inode *inode)
+{
+ hlist_add_fake(&inode->i_hash);
+}
+
+/*
* inode->i_mutex nesting subclasses for the lock validator:
*
* 0: the object of the current VFS operation
--
2.11.0
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