[RFC PATCH v8 01/24] vfs: export new_inode_pseudo

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Ceph needs to be able to allocate inodes ahead of a create that might
involve a fscrypt-encrypted inode. new_inode() almost fits the bill,
but it puts the inode on the sb->s_inodes list and when we go to hash
it, that might be done again.

We could work around that by setting I_CREATING on the new inode, but
that causes ilookup5 to return -ESTALE if something tries to find it
before I_NEW is cleared. This is desirable behavior for most
filesystems, but doesn't work for ceph.

To work around all of this, just use new_inode_pseudo which doesn't add
it to the sb->s_inodes list.

Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
 fs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/inode.c b/fs/inode.c
index c93500d84264..cf9ea4b260b0 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -941,6 +941,7 @@ struct inode *new_inode_pseudo(struct super_block *sb)
 	}
 	return inode;
 }
+EXPORT_SYMBOL(new_inode_pseudo);
 
 /**
  *	new_inode 	- obtain an inode
-- 
2.31.1




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