summaryrefslogtreecommitdiffstats
path: root/fs/nfs/flexfilelayout/flexfilelayout.c
Commit message (Collapse)AuthorAgeFilesLines
* NFSv4.1/flexfiles: Fix freeing of mirrorsTrond Myklebust2015-09-011-12/+2
| | | | | | | | | | | | Mirrors are now shared objects, so we should not be freeing them directly inside ff_layout_free_lseg(). We should already be doing the right thing in _ff_layout_free_lseg(), so just let it handle things. Also ensure that ff_layout_free_mirror() frees the RPC credential if it is set. Fixes: 28a0d72c6867 ("Add refcounting to struct nfs4_ff_layout_mirror") Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfiles: Don't mark the entire deviceid as bad for file errorsTrond Myklebust2015-08-301-8/+16
| | | | | | | | | If the file was fenced and/or has been deleted on the DS, then we want to retry pNFS after a layoutreturn with error report. If the server cannot fix the problem, then we rely on it to tell us so in the response to the LAYOUTGET. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfiles: Allow coalescing of new layout segments and existing onesTrond Myklebust2015-08-251-0/+60
| | | | | | | | | | In order to ensure atomicity of updates, we merge the old layout segments into the new ones, and then invalidate the old ones. Also ensure that we order the list of layout segments so that RO segments are preferred over RW. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfile: ff_layout_remove_mirror can be statickbuild test robot2015-08-251-1/+1
| | | | | Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.2/pnfs: Make the layoutstats timer configurableTrond Myklebust2015-08-251-1/+4
| | | | | | | Allow advanced users to set the layoutstats timer in order to lengthen or shorten the period between layoutstat transmissions to the server. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfile: Ensure uniqueness of mirrors across layout segmentsTrond Myklebust2015-08-251-29/+96
| | | | | | | | Keep the full list of mirrors in the struct nfs4_ff_layout_mirror so that they can be shared among the layout segments that use them. Also ensure that we send out only one copy of the layoutstats per mirror. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfiles: Remove mirror backpointer to lseg.Trond Myklebust2015-08-251-13/+12
| | | | | | | When we start sharing mirrors between several lsegs, we won't be able to keep it. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/flexfiles: Add refcounting to struct nfs4_ff_layout_mirrorTrond Myklebust2015-08-251-9/+27
| | | | | | | We do want to share mirrors between layout segments, so add a refcount to enable that. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFS41/flexfiles: zero out DS write wccPeng Tao2015-08-251-0/+2
| | | | | | | | We do not want to update inode attributes with DS values. Cc: stable@vger.kernel.org # v4.0+ Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/pnfs Ensure flexfiles reports all connection related errorsTrond Myklebust2015-08-201-13/+35
| | | | | | | | Make sure that we also handle RPC level connection and protocol negotiation errors. Reported-by: Tom Haynes <loghyr@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/pnfs: Ensure the flexfiles layoutstats timers are consistentTrond Myklebust2015-08-201-27/+24
| | | | | | | | We want to ensure that the stopwatches for the busy timer and the aggregate timer are consistent. This means that they need to use the same start/stop times. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFS41/flexfiles: update inode after write finishesPeng Tao2015-08-191-0/+3
| | | | | | | | | | | Otherwise we break fstest case tests/read_write/mctime.t Does files layout need the same fix as well? Cc: stable@vger.kernel.org # v4.0+ Cc: Anna Schumaker <anna.schumaker@netapp.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* nfs: remove some dead code in ff_layout_pg_get_mirror_count_writeJeff Layton2015-08-171-2/+0
| | | | | | | We already know that pg_lseg is NULL here. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.2/pnfs: Use GFP_NOIO for layoutstat reporting in the writeback pathTrond Myklebust2015-08-121-2/+4
| | | | | | Prevent a potential deadlock. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: LAYOUTSTATS ii_count should be ops instead of bytesPeng Tao2015-08-121-3/+2
| | | | | | | | | Turned out I misinterpreted the spec... Cc: Tom Haynes <thomas.haynes@primarydata.com> Reported-by: Jean Spector <jean@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.2/flexfiles: Fix a typo in the flexfiles layoutstats codeTrond Myklebust2015-07-081-1/+1
| | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pNFS/flexfiles: Fix the reset of struct pgio_header when resendingTrond Myklebust2015-06-261-1/+1
| | | | | | | | hdr->good_bytes needs to be set to the length of the request, not zero. Cc: stable@vger.kernel.org # 4.0+ Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pNFS/flexfiles: Turn off layoutcommit for servers that don't need itTrond Myklebust2015-06-261-1/+15
| | | | | | | | | | | | This patch ensures that we record the value of 'ffl_flags' from the layout, and then checks for the presence of the FF_FLAGS_NO_LAYOUTCOMMIT flag before deciding whether or not to call pnfs_set_layoutcommit(). The effect is that servers now can decide whether or not they want the client to call layoutcommit before returning a writeable layout. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: protect ktime manipulation with mirror lockPeng Tao2015-06-261-19/+12
| | | | | | | | | | | | | | | | | It looks as if xchg() and cmpxchg() are not available for 64-bit integers on sparc32: > New breakage seen in linux-next today: > > ERROR: "__xchg_called_with_bad_pointer" [fs/nfs/flexfilelayout/nfs_layout_flexfiles.ko] undefined! > ERROR: "__cmpxchg_called_with_bad_pointer" [fs/nfs/flexfilelayout/nfs_layout_flexfiles.ko] undefined! > make[2]: *** [__modpost] Error 1 > make[1]: *** [modules] Error 2 Given that mirror ktime manipulation is already under mirror->lock, let's make use of the fact. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: report layoutstat regularlyPeng Tao2015-06-241-4/+23
| | | | | | | | As a simple scheme, report every minute if IO is still going on. Reviewed-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: encode LAYOUTSTATS flexfiles specific dataPeng Tao2015-06-241-2/+176
| | | | | | Reviewed-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: add ff_layout_prepare_layoutstatsPeng Tao2015-06-241-0/+71
| | | | | | | | | | | | It fills in the generic part of LAYOUTSTATS call. One thing to note is that we don't really track if IO is continuous or not. So just fake to use the completed bytes for it. Still missing flexfiles specific part, which will be included in the next patch. Reviewed-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pNFS/flexfiles: track when layout is first usedPeng Tao2015-06-241-3/+7
| | | | | | | | | So that we can report cumulative time since the beginning of statistics collection of the layout. Reviewed-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pNFS/flexfiles: add layoutstats trackingTrond Myklebust2015-06-241-11/+181
| | | | | Reviewed-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs/flexfiles: use swap() in ff_layout_sort_mirrors()Fabian Frederick2015-06-161-6/+3
| | | | | | | | | Use kernel.h macro definition. Thanks to Julia Lawall for Coccinelle scripting support. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFS: Move nfs_idmap.h into fs/nfs/Anna Schumaker2015-04-231-1/+1
| | | | | | | | | | This file is only used internally to the NFS v4 module, so it doesn't need to be in the global include path. I also renamed it from nfs_idmap.h to nfs4idmap.h to emphasize that it's an NFSv4-only include file. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/pnfs: Separate out metadata and data consistency for pNFSTrond Myklebust2015-03-271-0/+1
| | | | | | | | | | | The LAYOUTCOMMIT operation means different things to different layout types. For blocks and objects, it is both a data and metadata consistency operation. For files and flexfiles, it is only a metadata consistency operation. This patch separates out the 2 cases, allowing the files/flexfiles layout drivers to optimise away the data consistency calls to layoutcommit. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFSv4.1/pnfs: Refactor pnfs_set_layoutcommit()Trond Myklebust2015-03-271-2/+3
| | | | | | | pnfs_set_layoutcommit() and pnfs_commit_set_layoutcommit() are 100% identical except for the function arguments. Refactor to eliminate the difference. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* NFS: Fix free_deveiceid -> free_deviceidTrond Myklebust2015-03-271-2/+2
| | | | | | Make it easier to grep for these functions by name. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* pnfs: Refactor the *_layout_mark_request_commit to use ↵Tom Haynes2015-02-181-37/+1
| | | | | | | | | | | pnfs_layout_mark_request_commit The File Layout's filelayout_mark_request_commit() is almost the Flex File Layout's ff_layout_mark_request_commit(). And that can be reduced by calling into nfs_request_add_commit_list(). Signed-off-by: Tom Haynes <loghyr@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* nfs: Provide and use helper functions for marking a page as unstableTom Haynes2015-02-131-7/+2
| | | | | Signed-off-by: Tom Haynes <loghyr@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* Merge branch 'for-3.20/bdi' of git://git.kernel.dk/linux-blockLinus Torvalds2015-02-121-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull backing device changes from Jens Axboe: "This contains a cleanup of how the backing device is handled, in preparation for a rework of the life time rules. In this part, the most important change is to split the unrelated nommu mmap flags from it, but also removing a backing_dev_info pointer from the address_space (and inode), and a cleanup of other various minor bits. Christoph did all the work here, I just fixed an oops with pages that have a swap backing. Arnd fixed a missing export, and Oleg killed the lustre backing_dev_info from staging. Last patch was from Al, unexporting parts that are now no longer needed outside" * 'for-3.20/bdi' of git://git.kernel.dk/linux-block: Make super_blocks and sb_lock static mtd: export new mtd_mmap_capabilities fs: make inode_to_bdi() handle NULL inode staging/lustre/llite: get rid of backing_dev_info fs: remove default_backing_dev_info fs: don't reassign dirty inodes to default_backing_dev_info nfs: don't call bdi_unregister ceph: remove call to bdi_unregister fs: remove mapping->backing_dev_info fs: export inode_to_bdi and use it in favor of mapping->backing_dev_info nilfs2: set up s_bdi like the generic mount_bdev code block_dev: get bdev inode bdi directly from the block device block_dev: only write bdev inode on close fs: introduce f_op->mmap_capabilities for nommu mmap support fs: kill BDI_CAP_SWAP_BACKED fs: deduplicate noop_backing_dev_info
* pnfs/flexfiles: Add the FlexFile Layout DriverTom Haynes2015-02-031-0/+1574
The flexfile layout is a new layout that extends the file layout. It is currently being drafted as a specification at https://datatracker.ietf.org/doc/draft-ietf-nfsv4-layout-types/ Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Tom Haynes <loghyr@primarydata.com> Signed-off-by: Tao Peng <bergwolf@primarydata.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 02:33:33 +0000