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Commit 59a707b0 authored by Trond Myklebust's avatar Trond Myklebust Committed by Trond Myklebust
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NFS: Ensure we revalidate the inode correctly after remove or rename 



We may need to revalidate the change attribute, ctime and the nlinks count.

Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
parent 821a868a

fs/nfs/dir.c

+14 −4
Original line number Diff line number Diff line
@@ -1284,11 +1284,13 @@ static void nfs_drop_nlink(struct inode *inode) 
{

	spin_lock(&inode->i_lock);

	/* drop the inode if we're reasonably sure this is the last link */

	if (inode->i_nlink == 1)

		clear_nlink(inode);

	if (inode->i_nlink > 0)

		drop_nlink(inode);

	NFS_I(inode)->attr_gencount = nfs_inc_attr_generation_counter();

	NFS_I(inode)->cache_validity |= NFS_INO_INVALID_CHANGE

		| NFS_INO_INVALID_CTIME

		| NFS_INO_INVALID_OTHER;

		| NFS_INO_INVALID_OTHER

		| NFS_INO_REVAL_FORCED;

	spin_unlock(&inode->i_lock);

}
@@ -2050,7 +2052,15 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, 
	} else

		error = task->tk_status;

	rpc_put_task(task);

	nfs_mark_for_revalidate(old_inode);

	/* Ensure the inode attributes are revalidated */

	if (error == 0) {

		spin_lock(&old_inode->i_lock);

		NFS_I(old_inode)->attr_gencount = nfs_inc_attr_generation_counter();

		NFS_I(old_inode)->cache_validity |= NFS_INO_INVALID_CHANGE

			| NFS_INO_INVALID_CTIME

			| NFS_INO_REVAL_FORCED;

		spin_unlock(&old_inode->i_lock);

	}

out:

	if (rehash)

		d_rehash(rehash);