Commit 707ed5fd authored by Benny Halevy's avatar Benny Halevy Committed by Boaz Harrosh
Browse files

pnfs: align layoutget requests on page boundaries 



Signed-off-by: default avatarBenny Halevy <bhalevy@panasas.com>
parent fb3296eb

fs/nfs/pnfs.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -850,6 +850,7 @@ pnfs_update_layout(struct inode *ino, 
		.offset = pos,

		.offset = pos,

		.length = count,

		.length = count,

	};

	};

	unsigned pg_offset;

	struct nfs_inode *nfsi = NFS_I(ino);

	struct nfs_inode *nfsi = NFS_I(ino);

	struct nfs_client *clp = NFS_SERVER(ino)->nfs_client;

	struct nfs_client *clp = NFS_SERVER(ino)->nfs_client;

	struct pnfs_layout_hdr *lo;

	struct pnfs_layout_hdr *lo;
@@ -899,6 +900,13 @@ pnfs_update_layout(struct inode *ino, 
		spin_unlock(&clp->cl_lock);

		spin_unlock(&clp->cl_lock);

	}

	}





	pg_offset = arg.offset & ~PAGE_CACHE_MASK;

	if (pg_offset) {

		arg.offset -= pg_offset;

		arg.length += pg_offset;

	}

	arg.length = PAGE_CACHE_ALIGN(arg.length);



	lseg = send_layoutget(lo, ctx, &arg, gfp_flags);

	lseg = send_layoutget(lo, ctx, &arg, gfp_flags);

	if (!lseg && first) {

	if (!lseg && first) {

		spin_lock(&clp->cl_lock);

		spin_lock(&clp->cl_lock);