From: Christoph Hellwig <hch@lst.de> To: "J. Bruce Fields" <bfields@fieldses.org> Cc: Jeff Layton <jlayton@primarydata.com>, linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, xfs@oss.sgi.com Subject: [PATCH 13/18] exportfs: add methods for block layout exports Date: Tue, 6 Jan 2015 17:28:36 +0100 [thread overview] Message-ID: <1420561721-9150-14-git-send-email-hch@lst.de> (raw) In-Reply-To: <1420561721-9150-1-git-send-email-hch@lst.de> Add three methods to allow exporting pnfs block layout volumes: - get_uuid: get a filesystem unique signature exposed to clients - map_blocks: map and if nessecary allocate blocks for a layout - commit_blocks: commit blocks in a layout once the client is done with them For now we stick the external pnfs block layout interfaces into s_export_op to avoid mixing them up with the internal interface between the NFS server and the layout drivers. Once we've fully internalized the latter interface we can redecide if these methods should stay in s_export_ops. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/exportfs.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h index 41b223a..ff46bf7 100644 --- a/include/linux/exportfs.h +++ b/include/linux/exportfs.h @@ -4,6 +4,7 @@ #include <linux/types.h> struct dentry; +struct iattr; struct inode; struct super_block; struct vfsmount; @@ -180,6 +181,19 @@ struct fid { * get_name is not (which is possibly inconsistent) */ +/* types of block ranges for multipage write mappings. */ +#define IOMAP_HOLE 0x01 /* no blocks allocated, need allocation */ +#define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */ +#define IOMAP_MAPPED 0x03 /* blocks allocated @blkno */ +#define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ + +struct iomap { + sector_t blkno; /* first sector of mapping */ + loff_t offset; /* file offset of mapping, bytes */ + u64 length; /* length of mapping, bytes */ + int type; /* type of mapping */ +}; + struct export_operations { int (*encode_fh)(struct inode *inode, __u32 *fh, int *max_len, struct inode *parent); @@ -191,6 +205,13 @@ struct export_operations { struct dentry *child); struct dentry * (*get_parent)(struct dentry *child); int (*commit_metadata)(struct inode *inode); + + int (*get_uuid)(struct super_block *sb, u8 *buf, u32 *len, u64 *offset); + int (*map_blocks)(struct inode *inode, loff_t offset, + u64 len, struct iomap *iomap, + bool write, u32 *device_generation); + int (*commit_blocks)(struct inode *inode, struct iomap *iomaps, + int nr_iomaps, struct iattr *iattr); }; extern int exportfs_encode_inode_fh(struct inode *inode, struct fid *fid, -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de> To: "J. Bruce Fields" <bfields@fieldses.org> Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, Jeff Layton <jlayton@primarydata.com>, xfs@oss.sgi.com Subject: [PATCH 13/18] exportfs: add methods for block layout exports Date: Tue, 6 Jan 2015 17:28:36 +0100 [thread overview] Message-ID: <1420561721-9150-14-git-send-email-hch@lst.de> (raw) In-Reply-To: <1420561721-9150-1-git-send-email-hch@lst.de> Add three methods to allow exporting pnfs block layout volumes: - get_uuid: get a filesystem unique signature exposed to clients - map_blocks: map and if nessecary allocate blocks for a layout - commit_blocks: commit blocks in a layout once the client is done with them For now we stick the external pnfs block layout interfaces into s_export_op to avoid mixing them up with the internal interface between the NFS server and the layout drivers. Once we've fully internalized the latter interface we can redecide if these methods should stay in s_export_ops. Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/exportfs.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h index 41b223a..ff46bf7 100644 --- a/include/linux/exportfs.h +++ b/include/linux/exportfs.h @@ -4,6 +4,7 @@ #include <linux/types.h> struct dentry; +struct iattr; struct inode; struct super_block; struct vfsmount; @@ -180,6 +181,19 @@ struct fid { * get_name is not (which is possibly inconsistent) */ +/* types of block ranges for multipage write mappings. */ +#define IOMAP_HOLE 0x01 /* no blocks allocated, need allocation */ +#define IOMAP_DELALLOC 0x02 /* delayed allocation blocks */ +#define IOMAP_MAPPED 0x03 /* blocks allocated @blkno */ +#define IOMAP_UNWRITTEN 0x04 /* blocks allocated @blkno in unwritten state */ + +struct iomap { + sector_t blkno; /* first sector of mapping */ + loff_t offset; /* file offset of mapping, bytes */ + u64 length; /* length of mapping, bytes */ + int type; /* type of mapping */ +}; + struct export_operations { int (*encode_fh)(struct inode *inode, __u32 *fh, int *max_len, struct inode *parent); @@ -191,6 +205,13 @@ struct export_operations { struct dentry *child); struct dentry * (*get_parent)(struct dentry *child); int (*commit_metadata)(struct inode *inode); + + int (*get_uuid)(struct super_block *sb, u8 *buf, u32 *len, u64 *offset); + int (*map_blocks)(struct inode *inode, loff_t offset, + u64 len, struct iomap *iomap, + bool write, u32 *device_generation); + int (*commit_blocks)(struct inode *inode, struct iomap *iomaps, + int nr_iomaps, struct iattr *iattr); }; extern int exportfs_encode_inode_fh(struct inode *inode, struct fid *fid, -- 1.9.1 _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs
next prev parent reply other threads:[~2015-01-06 16:29 UTC|newest] Thread overview: 153+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-01-06 16:28 a simple and scalable pNFS block layout server Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 01/18] nfs: add LAYOUT_TYPE_MAX enum value Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 02/18] fs: add FL_LAYOUT lease type Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 18:46 ` Jeff Layton 2015-01-06 18:46 ` Jeff Layton 2015-01-07 10:30 ` Christoph Hellwig 2015-01-07 10:30 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 03/18] nfsd: factor out a helper to decode nfstime4 values Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-4-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-09 23:02 ` Tom Haynes 2015-01-09 23:02 ` Tom Haynes 2015-01-09 23:02 ` Tom Haynes 2015-01-11 11:42 ` Christoph Hellwig 2015-01-11 11:42 ` Christoph Hellwig [not found] ` <20150111114242.GA11939-jcswGhMUV9g@public.gmane.org> 2015-01-11 23:53 ` Tom Haynes 2015-01-11 23:53 ` Tom Haynes 2015-01-11 23:53 ` Tom Haynes 2015-01-06 16:28 ` [PATCH 04/18] nfsd: move nfsd_fh_match to nfsfh.h Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 05/18] nfsd: add fh_fsid_match helper Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 06/18] nfsd: make lookup/alloc/unhash_stid available outside nfs4state.c Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 07/18] nfsd: make find/get/put file " Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 16:28 ` [PATCH 08/18] nfsd: make find_any_file " Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 10/18] nfsd: implement pNFS layout recalls Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-11-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:25 ` J. Bruce Fields 2015-01-06 17:42 ` Christoph Hellwig 2015-01-06 17:42 ` Christoph Hellwig [not found] ` <20150106174214.GB16200-jcswGhMUV9g@public.gmane.org> 2015-01-06 17:59 ` Tom Haynes 2015-01-06 17:59 ` Tom Haynes 2015-01-06 17:59 ` Tom Haynes 2015-01-06 16:28 ` [PATCH 11/18] nfsd: update documentation for pNFS support Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 12/18] nfsd: add trace events Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 14/18] nfsd: pNFS block layout driver Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 17:16 ` J. Bruce Fields 2015-01-06 17:16 ` J. Bruce Fields 2015-01-06 17:39 ` Christoph Hellwig 2015-01-06 17:39 ` Christoph Hellwig 2015-01-06 19:39 ` J. Bruce Fields 2015-01-06 19:39 ` J. Bruce Fields [not found] ` <20150106193949.GD28003-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org> 2015-01-06 19:42 ` Jeff Layton 2015-01-06 19:42 ` Jeff Layton 2015-01-06 19:42 ` Jeff Layton 2015-01-07 10:28 ` Christoph Hellwig 2015-01-07 10:28 ` Christoph Hellwig 2015-01-08 20:41 ` Jeff Layton 2015-01-08 20:41 ` Jeff Layton 2015-01-08 20:54 ` J. Bruce Fields 2015-01-08 20:54 ` J. Bruce Fields [not found] ` <1420561721-9150-15-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-12 4:56 ` Tom Haynes 2015-01-12 4:56 ` Tom Haynes 2015-01-12 4:56 ` Tom Haynes 2015-01-12 12:43 ` Christoph Hellwig 2015-01-12 12:43 ` Christoph Hellwig 2015-01-12 6:14 ` Tom Haynes 2015-01-12 6:14 ` Tom Haynes 2015-01-12 12:46 ` Christoph Hellwig 2015-01-12 12:46 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 15/18] xfs: pass a 64-bit count argument to xfs_iomap_write_unwritten Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 16/18] xfs: do not allocate blocks when converting unwritten extents Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 23:21 ` Dave Chinner 2015-01-06 23:21 ` Dave Chinner 2015-01-06 16:28 ` [PATCH 17/18] xfs: implement pnfs export operations Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig 2015-01-07 0:24 ` Dave Chinner 2015-01-07 0:24 ` Dave Chinner 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 10:40 ` Christoph Hellwig 2015-01-07 21:11 ` Dave Chinner 2015-01-07 21:11 ` Dave Chinner 2015-01-07 21:11 ` Dave Chinner 2015-01-08 12:43 ` Christoph Hellwig 2015-01-08 12:43 ` Christoph Hellwig 2015-01-08 21:04 ` Dave Chinner 2015-01-08 21:04 ` Dave Chinner 2015-01-09 11:41 ` Christoph Hellwig 2015-01-09 11:41 ` Christoph Hellwig [not found] ` <20150109114159.GA25728-jcswGhMUV9g@public.gmane.org> 2015-01-12 3:04 ` Dave Chinner 2015-01-12 3:04 ` Dave Chinner 2015-01-12 3:04 ` Dave Chinner 2015-01-14 10:08 ` Christoph Hellwig 2015-01-14 10:08 ` Christoph Hellwig 2015-01-14 10:08 ` Christoph Hellwig 2015-01-06 16:28 ` [PATCH 09/18] nfsd: implement pNFS operations Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-10-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-09 0:48 ` Jeff Layton 2015-01-09 0:48 ` Jeff Layton 2015-01-09 0:48 ` Jeff Layton 2015-01-09 10:05 ` Christoph Hellwig 2015-01-09 10:05 ` Christoph Hellwig 2015-01-09 16:51 ` Jeff Layton 2015-01-09 16:51 ` Jeff Layton 2015-01-09 17:16 ` Christoph Hellwig 2015-01-09 17:16 ` Christoph Hellwig 2015-01-09 17:28 ` Jeff Layton 2015-01-09 17:28 ` Jeff Layton 2015-01-09 17:33 ` Jeff Layton 2015-01-09 17:33 ` Jeff Layton 2015-01-09 17:43 ` Trond Myklebust 2015-01-09 17:43 ` Trond Myklebust 2015-01-09 18:49 ` rfc5661 errata 3901, was: " Christoph Hellwig 2015-01-14 19:16 ` Tom Haynes 2015-01-15 16:26 ` Christoph Hellwig 2015-01-15 16:30 ` [nfsv4] " Trond Myklebust 2015-01-12 17:54 ` Tom Haynes 2015-01-12 17:54 ` Tom Haynes 2015-01-12 17:54 ` Tom Haynes 2015-01-06 16:28 ` Christoph Hellwig [this message] 2015-01-06 16:28 ` [PATCH 13/18] exportfs: add methods for block layout exports Christoph Hellwig 2015-01-06 16:28 ` [PATCH 18/18] xfs: recall pNFS layouts on conflicting access Christoph Hellwig 2015-01-06 16:28 ` Christoph Hellwig [not found] ` <1420561721-9150-19-git-send-email-hch-jcswGhMUV9g@public.gmane.org> 2015-01-06 23:18 ` Dave Chinner 2015-01-06 23:18 ` Dave Chinner 2015-01-06 23:18 ` Dave Chinner 2015-01-07 10:31 ` Christoph Hellwig 2015-01-07 10:31 ` Christoph Hellwig 2015-01-06 17:32 ` a simple and scalable pNFS block layout server J. Bruce Fields 2015-01-06 17:32 ` J. Bruce Fields 2015-01-06 17:56 ` Christoph Hellwig 2015-01-06 17:56 ` Christoph Hellwig [not found] ` <20150106175611.GA16413-jcswGhMUV9g@public.gmane.org> 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:37 ` Jeff Layton 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 18:39 ` Weston Andros Adamson 2015-01-06 19:17 ` J. Bruce Fields 2015-01-06 19:17 ` J. Bruce Fields 2015-01-06 19:17 ` J. Bruce Fields
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