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[RFC,v4,01/17] vfs: export new_inode_pseudo

Message ID 20210120182847.644850-2-jlayton@kernel.org (mailing list archive)
State New, archived
Headers show
Series ceph+fscrypt: context, filename and symlink support | expand

Commit Message

Jeffrey Layton Jan. 20, 2021, 6:28 p.m. UTC 
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. To work around all of this, just use
new_inode_pseudo which doesn't add it to the list.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/inode.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/fs/inode.c b/fs/inode.c
index 6442d97d9a4a..50edc88c9fe2 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -934,6 +934,7 @@  struct inode *new_inode_pseudo(struct super_block *sb)
 	}
 	return inode;
 }
+EXPORT_SYMBOL(new_inode_pseudo);
 
 /**
  *	new_inode 	- obtain an inode