From patchwork Sun May 29 18:23:11 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boaz Harrosh X-Patchwork-Id: 828212 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p4TINF7k029007 for ; Sun, 29 May 2011 18:23:24 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755373Ab1E2SXX (ORCPT ); Sun, 29 May 2011 14:23:23 -0400 Received: from daytona.panasas.com ([67.152.220.89]:50885 "EHLO daytona.panasas.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755368Ab1E2SXX (ORCPT ); Sun, 29 May 2011 14:23:23 -0400 Received: from fs2.bhalevy.com ([172.17.33.72]) by daytona.panasas.com with Microsoft SMTPSVC(6.0.3790.4675); Sun, 29 May 2011 14:23:22 -0400 From: Boaz Harrosh To: Trond Myklebust , Benny Halevy , NFS list , open-osd Cc: Benny Halevy Subject: [PATCH 19/32] pnfs-obj: define per-inode private structure Date: Sun, 29 May 2011 21:23:11 +0300 Message-Id: <1306693391-8236-1-git-send-email-bharrosh@panasas.com> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <4DE28CFB.4060608@panasas.com> References: <4DE28CFB.4060608@panasas.com> X-OriginalArrivalTime: 29 May 2011 18:23:22.0306 (UTC) FILETIME=[7DFDFA20:01CC1E2D] Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Sun, 29 May 2011 18:23:24 +0000 (UTC) From: Benny Halevy allocate and deallocate per-inode private pnfs_layout_hdr in preparation for I/O implementation. Signed-off-by: Boaz Harrosh Signed-off-by: Benny Halevy --- fs/nfs/objlayout/objio_osd.c | 3 +++ fs/nfs/objlayout/objlayout.c | 26 ++++++++++++++++++++++++++ fs/nfs/objlayout/objlayout.h | 17 +++++++++++++++++ 3 files changed, 46 insertions(+), 0 deletions(-) diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c index 2255e2d..353821f 100644 --- a/fs/nfs/objlayout/objio_osd.c +++ b/fs/nfs/objlayout/objio_osd.c @@ -364,6 +364,9 @@ static struct pnfs_layoutdriver_type objlayout_type = { .id = LAYOUT_OSD2_OBJECTS, .name = "LAYOUT_OSD2_OBJECTS", + .alloc_layout_hdr = objlayout_alloc_layout_hdr, + .free_layout_hdr = objlayout_free_layout_hdr, + .alloc_lseg = objlayout_alloc_lseg, .free_lseg = objlayout_free_lseg, diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c index 10e5fca..f14b4da 100644 --- a/fs/nfs/objlayout/objlayout.c +++ b/fs/nfs/objlayout/objlayout.c @@ -42,6 +42,32 @@ #define NFSDBG_FACILITY NFSDBG_PNFS_LD /* + * Create a objlayout layout structure for the given inode and return it. + */ +struct pnfs_layout_hdr * +objlayout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags) +{ + struct objlayout *objlay; + + objlay = kzalloc(sizeof(struct objlayout), gfp_flags); + dprintk("%s: Return %p\n", __func__, objlay); + return &objlay->pnfs_layout; +} + +/* + * Free an objlayout layout structure + */ +void +objlayout_free_layout_hdr(struct pnfs_layout_hdr *lo) +{ + struct objlayout *objlay = OBJLAYOUT(lo); + + dprintk("%s: objlay %p\n", __func__, objlay); + + kfree(objlay); +} + +/* * Unmarshall layout and store it in pnfslay. */ struct pnfs_layout_segment * diff --git a/fs/nfs/objlayout/objlayout.h b/fs/nfs/objlayout/objlayout.h index 0814271..fa02621 100644 --- a/fs/nfs/objlayout/objlayout.h +++ b/fs/nfs/objlayout/objlayout.h @@ -46,6 +46,19 @@ #include "../pnfs.h" /* + * per-inode layout + */ +struct objlayout { + struct pnfs_layout_hdr pnfs_layout; +}; + +static inline struct objlayout * +OBJLAYOUT(struct pnfs_layout_hdr *lo) +{ + return container_of(lo, struct objlayout, pnfs_layout); +} + +/* * Raid engine I/O API */ extern int objio_alloc_lseg(struct pnfs_layout_segment **outp, @@ -66,6 +79,10 @@ extern void objlayout_put_deviceinfo(struct pnfs_osd_deviceaddr *deviceaddr); /* * exported generic objects function vectors */ + +extern struct pnfs_layout_hdr *objlayout_alloc_layout_hdr(struct inode *, gfp_t gfp_flags); +extern void objlayout_free_layout_hdr(struct pnfs_layout_hdr *); + extern struct pnfs_layout_segment *objlayout_alloc_lseg( struct pnfs_layout_hdr *, struct nfs4_layoutget_res *,