linux/fs/nfs/objlayout, branch v4.0

nfs: add nfs_pgio_current_mirror helper

2015-02-03T19:06:48Z

Let it return current nfs_pgio_mirror in use depending on pg_mirror_count. For read, we always use pg_mirrors[0], so this effectively gives us freedom to use pg_mirror_idx to track the actual mirror to read from through out the IO stack. Signed-off-by: Peng Tao Signed-off-by: Tom Haynes

nfs: add mirroring support to pgio layer

2015-02-03T19:06:45Z

This patch adds mirrored write support to the pgio layer. The default is to use one mirror, but pgio callers may define callbacks to change this to any value up to the (arbitrarily selected) limit of 16. The basic idea is to break out members of nfs_pageio_descriptor that cannot be shared between mirrored DSes and put them in a new structure. Signed-off-by: Weston Andros Adamson

pnfs: release lseg in pnfs_generic_pg_cleanup

2015-02-03T19:06:44Z

This is needed to support mirrored writes - the first write can't just trash the lseg, we need to keep it around until all mirrors have written. Signed-off-by: Weston Andros Adamson

Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd

2014-10-21T19:53:45Z

Pull email address change from Boaz Harrosh. * 'for-linus' of git://git.open-osd.org/linux-open-osd: Boaz Harrosh - fix email in Documentation Boaz Harrosh - Fix broken email address MAINTAINERS: Change Boaz Harrosh's email

Boaz Harrosh - Fix broken email address

2014-10-19T17:22:32Z

I no longer have access to the Panasas email. So change to an email that can always reach me. Signed-off-by: Boaz Harrosh

pnfs/objlayout: fix endianess annotation in objio_alloc_deviceid_node

2014-09-12T17:20:43Z

The kbuild test robot complained about a new sparse warning in objio_alloc_deviceid_node, but it turns out that this was just a moved reference to an existing variable. Fix it to have the right big endian annotated type. Note that there are some other endianess issues in this file that I didn't bother to sort out as they involve global headers. Reported-by: kbuild test robot Signed-off-by: Christoph Hellwig Signed-off-by: Trond Myklebust

pnfs: factor GETDEVICEINFO implementations

2014-09-10T19:47:03Z

Add support to the common pNFS core to issue GETDEVICEINFO calls on a device ID cache miss. The code is taken from the well debugged file layout implementation and calls out to the layoutdriver through a new alloc_deviceid_node method. The calling conventions for nfs4_find_get_deviceid are changed so that all information needed to send a GETDEVICEINFO request is passed to the common code. Signed-off-by: Christoph Hellwig Signed-off-by: Trond Myklebust

nfs: remove unused writeverf code

2014-06-24T22:47:00Z

Remove duplicate writeverf structure from merge of nfs_pgio_header and nfs_pgio_data and remove writeverf related flags and logic to handle more than one RPC per nfs_pgio_header. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust

nfs: merge nfs_pgio_data into _header

2014-06-24T22:47:00Z

struct nfs_pgio_data only exists as a member of nfs_pgio_header, but is passed around everywhere, because there used to be multiple _data structs per _header. Many of these functions then use the _data to find a pointer to the _header. This patch cleans this up by merging the nfs_pgio_data structure into nfs_pgio_header and passing nfs_pgio_header around instead. Reviewed-by: Christoph Hellwig Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust

nfs: rename members of nfs_pgio_data

2014-06-24T22:46:59Z

Rename "verf" to "writeverf" and "pages" to "page_array" to prepare for merge of nfs_pgio_data and nfs_pgio_header. Reviewed-by: Christoph Hellwig Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust