Hi, This patchset introduces the Flexfile Layout Module for the client. It corresponds to draft 4 (http://tools.ietf.org/id/draft-ietf-nfsv4-flex-files-04.txt) of the Parallel NFS (pNFS) Flexible File Layout (https://datatracker.ietf.org/doc/draft-ietf-nfsv4-flex-files/). The changes from v2 are based on Anna's review comments plus some changes to the last patch to fix some minor issues found during testing: > Peng Tao (4): > SQUASHME: nfs41: clear layoutget fail bit when layoutget succeeds > SQUASHME: close a race in pnfs_update_layout > SQUASHME: nfs/flexfiles: fake unstable direct writes > SQUASHME: nfs41: clear NFS_LAYOUT_RETURN if pnfs_send_layoutreturn > fails due to OOM Thanks, Tom Peng Tao (35): nfs41: pull data server cache from file layout to generic pnfs nfs41: pull decode_ds_addr from file layout to generic pnfs nfs41: pull nfs4_ds_connect from file layout to generic pnfs nfs41: allow LD to choose DS connection auth flavor nfs41: move file layout macros to generic pnfs nfsv3: introduce nfs3_set_ds_client nfs41: allow LD to choose DS connection version/minor_version nfs41: create NFSv3 DS connection if specified nfs: allow different protocol in nfs_initiate_commit nfs4: pass slot table to nfs40_setup_sequence nfs4: export nfs4_sequence_done nfs: allow to specify cred in nfs_initiate_pgio nfs: set hostname when creating nfsv3 ds connection nfs/flexclient: export pnfs_layoutcommit_inode nfs41: close a small race window when adding new layout to global list nfs41: serialize first layoutget of a file nfs: save server READ/WRITE/COMMIT status nfs41: pass iomode through layoutreturn args nfs41: make a helper function to send layoutreturn nfs41: add a helper to mark layout for return nfs41: don't use a layout if it is marked for returning nfs41: send layoutreturn in last put_lseg nfs41: clear NFS_LAYOUT_RETURN if layoutreturn is sent or failed to send nfs/filelayout: use pnfs_error_mark_layout_for_return nfs41: add a debug warning if we destroy an unempty layout nfs: only reset desc->pg_mirror_idx when mirroring is supported nfs: add nfs_pgio_current_mirror helper pnfs: allow LD to ask to resend read through pnfs nfs41: add range to layoutreturn args nfs41: allow async version layoutreturn nfs41: introduce NFS_LAYOUT_RETURN_BEFORE_CLOSE nfs/flexfiles: send layoutreturn before freeing lseg nfs41: add NFS_LAYOUT_RETRY_LAYOUTGET to layout header flags nfs: add a helper to set NFS_ODIRECT_RESCHED_WRITES to direct writes nfs41: wait for LAYOUTRETURN before retrying LAYOUTGET Tom Haynes (4): pnfs: Prepare for flexfiles by pulling out common code pnfs: Do not grab the commit_info lock twice when rescheduling writes pnfs: Add nfs_rpc_ops in calls to nfs_initiate_pgio pnfs/flexfiles: Add the FlexFile Layout Driver Trond Myklebust (1): NFSv4.1/NFSv3: Add pNFS callbacks for nfs3_(read|write|commit)_done() Weston Andros Adamson (9): sunrpc: add rpc_count_iostats_idx nfs: introduce pg_cleanup op for pgio descriptors pnfs: release lseg in pnfs_generic_pg_cleanup nfs: handle overlapping reqs in lock_and_join nfs: rename pgio header ds_idx to ds_commit_idx pnfs: pass ds_commit_idx through the commit path nfs: add mirroring support to pgio layer nfs: mirroring support for direct io pnfs: fail comparison when bucket verifier not set fs/nfs/Kconfig | 5 + fs/nfs/Makefile | 3 +- fs/nfs/blocklayout/blocklayout.c | 2 + fs/nfs/direct.c | 108 +- fs/nfs/filelayout/filelayout.c | 315 +----- fs/nfs/filelayout/filelayout.h | 40 - fs/nfs/filelayout/filelayoutdev.c | 469 +-------- fs/nfs/flexfilelayout/Makefile | 5 + fs/nfs/flexfilelayout/flexfilelayout.c | 1603 +++++++++++++++++++++++++++++ fs/nfs/flexfilelayout/flexfilelayout.h | 158 +++ fs/nfs/flexfilelayout/flexfilelayoutdev.c | 552 ++++++++++ fs/nfs/internal.h | 31 +- fs/nfs/nfs2xdr.c | 10 +- fs/nfs/nfs3_fs.h | 2 + fs/nfs/nfs3client.c | 41 + fs/nfs/nfs3proc.c | 9 + fs/nfs/nfs3super.c | 2 +- fs/nfs/nfs3xdr.c | 3 + fs/nfs/nfs4_fs.h | 6 + fs/nfs/nfs4client.c | 7 +- fs/nfs/nfs4proc.c | 48 +- fs/nfs/nfs4xdr.c | 9 +- fs/nfs/objlayout/objio_osd.c | 5 +- fs/nfs/pagelist.c | 294 +++++- fs/nfs/pnfs.c | 425 ++++++-- fs/nfs/pnfs.h | 120 ++- fs/nfs/pnfs_dev.c | 522 ++++++++++ fs/nfs/pnfs_nfsio.c | 283 +++++ fs/nfs/read.c | 33 +- fs/nfs/write.c | 49 +- include/linux/nfs4.h | 1 + include/linux/nfs_fs_sb.h | 9 +- include/linux/nfs_page.h | 22 +- include/linux/nfs_xdr.h | 6 +- include/linux/sunrpc/metrics.h | 2 + net/sunrpc/stats.c | 26 +- 36 files changed, 4216 insertions(+), 1009 deletions(-) create mode 100644 fs/nfs/flexfilelayout/Makefile create mode 100644 fs/nfs/flexfilelayout/flexfilelayout.c create mode 100644 fs/nfs/flexfilelayout/flexfilelayout.h create mode 100644 fs/nfs/flexfilelayout/flexfilelayoutdev.c create mode 100644 fs/nfs/pnfs_nfsio.c -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
