Commit ca247c89 authored Sep 06, 2025 by Trond Myklebust

NFSv4.2: Serialise O_DIRECT i/o and copy range

Ensure that all O_DIRECT reads and writes complete before copying a file
range, so that the destination is up to date.

Fixes: a5864c99 ("NFS: Do not serialise O_DIRECT reads and writes")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

parent c80ebeba

fs/nfs/nfs42proc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -445,6 +445,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
		return status;
		}

		nfs_file_block_o_direct(NFS_I(dst_inode));
		status = nfs_sync_inode(dst_inode);
		if (status)
		return status;