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| * | | Merge branch 'pnfs_generic'Trond Myklebust2016-01-04
| |\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pnfs_generic: NFSv4.1/pNFS: Cleanup constify struct pnfs_layout_range arguments NFSv4.1/pnfs: Cleanup copying of pnfs_layout_range structures NFSv4.1/pNFS: Cleanup pnfs_mark_matching_lsegs_invalid() NFSv4.1/pNFS: Fix a race in initiate_file_draining() NFSv4.1/pNFS: pnfs_error_mark_layout_for_return() must always return layout NFSv4.1/pNFS: pnfs_mark_matching_lsegs_return() should set the iomode NFSv4.1/pNFS: Use nfs4_stateid_copy for copying stateids NFSv4.1/pNFS: Don't pass stateids by value to pnfs_send_layoutreturn() NFS: Relax requirements in nfs_flush_incompatible NFSv4.1/pNFS: Don't queue up a new commit if the layout segment is invalid NFS: Allow multiple commit requests in flight per file NFS/pNFS: Fix up pNFS write reschedule layering violations and bugs NFSv4: List stateid information in the callback tracepoints NFSv4.1/pNFS: Don't return NFS4ERR_DELAY unnecessarily in CB_LAYOUTRECALL NFSv4.1/pNFS: Ensure we enforce RFC5661 Section 12.5.5.2.1 pNFS: If we have to delay the layout callback, mark the layout for return NFSv4.1/pNFS: Add a helper to mark the layout as returned pNFS: Ensure nfs4_layoutget_prepare returns the correct error
| | * | | NFSv4.1/pNFS: Cleanup constify struct pnfs_layout_range argumentsTrond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pnfs: Cleanup copying of pnfs_layout_range structuresTrond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Cleanup pnfs_mark_matching_lsegs_invalid()Trond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make it more obvious what we're returning... Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Fix a race in initiate_file_draining()Trond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Peng Tao points out that the call to pnfs_mark_matching_lsegs_return() could race with pnfs_put_lseg(), in which case the layout segment is cleared, but no layoutreturn will be sent. Fix is to replace the call to pnfs_mark_matching_lsegs_invalid(). Reported-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: pnfs_error_mark_layout_for_return() must always return layoutTrond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a bug whereby if all the layout segments could be immediately freed, the call to pnfs_error_mark_layout_for_return() would never result in a layoutreturn. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: pnfs_mark_matching_lsegs_return() should set the iomodeTrond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If pnfs_mark_matching_lsegs_return() needs to mark a layout segment for return, then it must also set the return iomode. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Use nfs4_stateid_copy for copying stateidsTrond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Don't pass stateids by value to pnfs_send_layoutreturn()Trond Myklebust2016-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A stateid is a structure, pass it as a pointer. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFS: Relax requirements in nfs_flush_incompatibleTrond Myklebust2015-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If two processes share the same credentials and NFSv4 open stateid, then allow them both to dirty the same page, even if their nfs_open_context differs. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Don't queue up a new commit if the layout segment is invalidTrond Myklebust2015-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the layout segment is invalid, then we should not be adding more write requests to the commit list. Instead, those writes should be replayed after requesting a new layout. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFS: Allow multiple commit requests in flight per fileTrond Myklebust2015-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow synchronous RPC calls to wait for pending RPC calls to finish, but also allow asynchronous ones to just fire off another commit. With this patch, the xfstests generic/074 test completes in 226s instead of 242s Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFS/pNFS: Fix up pNFS write reschedule layering violations and bugsTrond Myklebust2015-12-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The flexfiles layout in particular, seems to want to poke around in the O_DIRECT flags when retransmitting. This patch sets up an interface to allow it to call back into O_DIRECT to handle retransmission correctly. It also fixes a potential bug whereby we could change the behaviour of O_DIRECT if an error is already pending. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4: List stateid information in the callback tracepointsTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The stateid is extremely valuable when debugging. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Don't return NFS4ERR_DELAY unnecessarily in CB_LAYOUTRECALLTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the client is promising to return the layout ASAP, then there is no need to return DELAY and have the server retry. Instead default to the normal procedure described in RFC5661. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Ensure we enforce RFC5661 Section 12.5.5.2.1Trond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RFC requires us to check if the server is recalling a stateid that we haven't yet received. If so, tell it to wait. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | pNFS: If we have to delay the layout callback, mark the layout for returnTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the client needs to delay the layout callback, then speed up the recall process by marking the remaining layout segments to be actively returned by the client. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | NFSv4.1/pNFS: Add a helper to mark the layout as returnedTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This ensures that we don't reuse the stateid if a layout return or implied layout return means that we've returned all layout segments Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | pNFS: Ensure nfs4_layoutget_prepare returns the correct errorTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we're unable to perform the layoutget due to an invalid open stateid or a bulk recall, ensure that we return the error so that the caller can decide on an appropriate action. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | | Merge branch 'flexfiles'Trond Myklebust2015-12-28
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * flexfiles: pNFS/flexfiles: Ensure we record layoutstats even if RPC is terminated early pNFS: Add flag to track if we've called nfs4_ff_layout_stat_io_start_read/write pNFS/flexfiles: Fix a statistics gathering imbalance pNFS/flexfiles: Don't mark the entire layout as failed, when returning it pNFS/flexfiles: Don't prevent flexfiles client from retrying LAYOUTGET pnfs/flexfiles: count io stat in rpc_count_stats callback pnfs/flexfiles: do not mark delay-like status as DS failure NFS41: map NFS4ERR_LAYOUTUNAVAILABLE to ENODATA nfs: only remove page from mapping if launder_page fails nfs: handle request add failure properly nfs: centralize pgio error cleanup nfs: clean up rest of reqs when failing to add one NFS41: pop some layoutget errors to application pNFS/flexfiles: Support server-supplied layoutstats sampling period
| | * | | | pNFS/flexfiles: Ensure we record layoutstats even if RPC is terminated earlyTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, we will only record the layoutstats correctly if the RPC call successfully obtains a slot. If we exit before that happens, then we may find ourselves starting the busy timer through the call in ff_layout_(read|write)_prepare_layoutstats, but never stopping it. The same thing happens if we're doing DA-DS. The fix is to ensure that we catch these cases in the rpc_release() callback. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pNFS: Add flag to track if we've called nfs4_ff_layout_stat_io_start_read/writeTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pNFS/flexfiles: Fix a statistics gathering imbalanceTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we replay a failed read, write or commit to the dataserver, we need to ensure that we call ff_layout_read_prepare_v3(), ff_layout_write_prepare_v3 or ff_layout_commit_prepare_v3() so that we reset the statistics. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pNFS/flexfiles: Don't mark the entire layout as failed, when returning itTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In pNFS/flexfiles, we want to return the layout without necessarily marking it as having completely failed. We therefore move the call to pnfs_layout_io_set_failed() out of pnfs_error_mark_layout_for_return(), and then ensura that pNFS/files layout calls it separately. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pNFS/flexfiles: Don't prevent flexfiles client from retrying LAYOUTGETTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a bug in which flexfiles clients are falling back to I/O through the MDS even when the FF_FLAGS_NO_IO_THRU_MDS flag is set. The flexfiles client will always report errors through the LAYOUTRETURN and/or LAYOUTERROR mechanisms, so it should normally be safe for it to retry the LAYOUTGET until it fails or succeeds. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pnfs/flexfiles: count io stat in rpc_count_stats callbackPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If client ever restarts IO due to some errors, we'll endup mis-counting IO stats if we do the counting in .rpc_done callback. Move it to .rpc_count_stats callback that is only called when releasing RPC. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pnfs/flexfiles: do not mark delay-like status as DS failurePeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We just need to delay and retry in these cases. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | NFS41: map NFS4ERR_LAYOUTUNAVAILABLE to ENODATAPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of mapping it to EIO that is a fatal error and fails application. We'll go inband after getting NFS4ERR_LAYOUTUNAVAILABLE. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | nfs: only remove page from mapping if launder_page failsPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of dropping pages when write fails, only do it when we get fatal failure in launder_page write back. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | nfs: handle request add failure properlyPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we fail to queue a read page to IO descriptor, we need to clean it up otherwise it is hanging around preventing nfs module from being removed. When we fail to queue a write page to IO descriptor, we need to clean it up and also save the failure status to open context. Then at file close, we can try to write pages back again and drop the page if it fails to writeback in .launder_page, which will be done in the next patch. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | nfs: centralize pgio error cleanupPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case we fail during setting things up for read/write IO, set pg_error in IO descriptor and do the cleanup in nfs_pageio_add_request, where we clean up all pages that are still hanging around on the IO descriptor. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | nfs: clean up rest of reqs when failing to add onePeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we fail to set up things before sending anything over wire, we need to clean up the reqs that are still attached to the IO descriptor. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | NFS41: pop some layoutget errors to applicationPeng Tao2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For ERESTARTSYS/EIO/EROFS/ENOSPC/E2BIG in layoutget, we should just bail out instead of hiding the error and retrying inband IO. Change all the call sites to pop the error all the way up. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| | * | | | pNFS/flexfiles: Support server-supplied layoutstats sampling periodTrond Myklebust2015-12-28
| | |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some servers want to be able to control the frequency with which clients report layoutstats, for instance, in order to monitor QoS for a particular file or set of file. In order to support this, the flexfiles layout allows the server to pass this info as a hint in the layout payload. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | | nfs: machine credential support for additional operationsAndrew Elble2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow LAYOUTRETURN and DELEGRETURN to use machine credentials if the server supports it. Add request for OPEN_DOWNGRADE as the close path also uses that. Signed-off-by: Andrew Elble <aweits@rit.edu> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | | nfs: do not initialise statics to 0Wei Tang2015-12-28
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the checkpatch.pl error to nfs4sysctl.c: ERROR: do not initialise statics to 0 Signed-off-by: Wei Tang <tangwei@cmss.chinamobile.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | pNFS: Modify pnfs_update_layout tracepoints to use layout stateidTrond Myklebust2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of displaying a layout segment pointer in these tracepoints, let's use the layout stateid, now that Olga gave us a set of tools for displaying them. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | NFSv4: Fix unused variable warnings in nfs4_init_*_client_string()Trond Myklebust2015-12-28
| | | | | | | | | | | | | | | | Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | nfs: add new tracepoint for pnfs_update_layoutJeff Layton2015-12-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pnfs_update_layout is really the "nexus" of layout handling. If it returns NULL then we end up going through the MDS. This patch adds some tracepoints to that function that allow us to determine the cause when we end up going through the MDS unexpectedly. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | Adding tracepoint to cached openOlga Kornievskaia2015-12-28
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| * | | Adding stateid information to tracepointsOlga Kornievskaia2015-12-28
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Operations to which stateid information is added: close, delegreturn, open, read, setattr, layoutget, layoutcommit, test_stateid, write, lock, locku, lockt Format is "stateid=<seqid>:<crc32 hash stateid.other>", also "openstateid=", "layoutstateid=", and "lockstateid=" for open_file, layoutget, set_lock tracepoints. New function is added to internal.h, nfs_stateid_hash(), to compute the hash trace_nfs4_setattr() is moved from nfs4_do_setattr() to _nfs4_do_setattr() to get access to stateid. trace_nfs4_setattr and trace_nfs4_delegreturn are changed from INODE_EVENT to new event type, INODE_STATEID_EVENT which is same as INODE_EVENT but adds stateid information for locking tracepoints, moved trace_nfs4_set_lock() into _nfs4_do_setlk() to get access to stateid information, and removed trace_nfs4_lock_reclaim(), trace_nfs4_lock_expired() as they call into _nfs4_do_setlk() and both were previously same LOCK_EVENT type. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
* | / Make sure that highmem pages are not added to symlink page cacheAl Viro2016-01-14
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | inode_nohighmem() is sufficient to make sure that page_get_link() won't try to allocate a highmem page. Moreover, it is sufficient to make sure that page_symlink/__page_symlink won't do the same thing. However, any filesystem that manually preseeds the symlink's page cache upon symlink(2) needs to make sure that the page it inserts there won't be a highmem one. Fortunately, only nfs and shmem have run afoul of that... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'work.copy_file_range' of ↵Linus Torvalds2016-01-12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs copy_file_range updates from Al Viro: "Several series around copy_file_range/CLONE" * 'work.copy_file_range' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: btrfs: use new dedupe data function pointer vfs: hoist the btrfs deduplication ioctl to the vfs vfs: wire up compat ioctl for CLONE/CLONE_RANGE cifs: avoid unused variable and label nfsd: implement the NFSv4.2 CLONE operation nfsd: Pass filehandle to nfs4_preprocess_stateid_op() vfs: pull btrfs clone API to vfs layer locks: new locks_mandatory_area calling convention vfs: Add vfs_copy_file_range() support for pagecache copies btrfs: add .copy_file_range file operation x86: add sys_copy_file_range to syscall tables vfs: add copy_file_range syscall and vfs helper
| * | vfs: pull btrfs clone API to vfs layerChristoph Hellwig2015-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The btrfs clone ioctls are now adopted by other file systems, with NFS and CIFS already having support for them, and XFS being under active development. To avoid growth of various slightly incompatible implementations, add one to the VFS. Note that clones are different from file copies in several ways: - they are atomic vs other writers - they support whole file clones - they support 64-bit legth clones - they do not allow partial success (aka short writes) - clones are expected to be a fast metadata operation Because of that it would be rather cumbersome to try to piggyback them on top of the recent clone_file_range infrastructure. The converse isn't true and the clone_file_range system call could try clone file range as a first attempt to copy, something that further patches will enable. Based on earlier work from Peng Tao. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'work.xattr' of ↵Linus Torvalds2016-01-11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs xattr updates from Al Viro: "Andreas' xattr cleanup series. It's a followup to his xattr work that went in last cycle; -0.5KLoC" * 'work.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: xattr handlers: Simplify list operation ocfs2: Replace list xattr handler operations nfs: Move call to security_inode_listsecurity into nfs_listxattr xfs: Change how listxattr generates synthetic attributes tmpfs: listxattr should include POSIX ACL xattrs tmpfs: Use xattr handler infrastructure btrfs: Use xattr handler infrastructure vfs: Distinguish between full xattr names and proper prefixes posix acls: Remove duplicate xattr name definitions gfs2: Remove gfs2_xattr_acl_chmod vfs: Remove vfs_xattr_cmp
| * | | xattr handlers: Simplify list operationAndreas Gruenbacher2015-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the list operation to only return whether or not an attribute should be listed. Copying the attribute names into the buffer is moved to the callers. Since the result only depends on the dentry and not on the attribute name, we do not pass the attribute name to list operations. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | nfs: Move call to security_inode_listsecurity into nfs_listxattrAndreas Gruenbacher2015-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a nfs_listxattr operation. Move the call to security_inode_listsecurity from list operation of the "security.*" xattr handler to nfs_listxattr. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Cc: Trond Myklebust <trond.myklebust@primarydata.com> Cc: Anna Schumaker <anna.schumaker@netapp.com> Cc: linux-nfs@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | vfs: Distinguish between full xattr names and proper prefixesAndreas Gruenbacher2015-12-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an additional "name" field to struct xattr_handler. When the name is set, the handler matches attributes with exactly that name. When the prefix is set instead, the handler matches attributes with the given prefix and with a non-empty suffix. This patch should avoid bugs like the one fixed in commit c361016a in the future. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | posix acls: Remove duplicate xattr name definitionsAndreas Gruenbacher2015-12-06
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | Remove POSIX_ACL_XATTR_{ACCESS,DEFAULT} and GFS2_POSIX_ACL_{ACCESS,DEFAULT} and replace them with the definitions in <include/uapi/linux/xattr.h>. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | Merge branch 'work.symlinks' of ↵Linus Torvalds2016-01-11
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs RCU symlink updates from Al Viro: "Replacement of ->follow_link/->put_link, allowing to stay in RCU mode even if the symlink is not an embedded one. No changes since the mailbomb on Jan 1" * 'work.symlinks' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: switch ->get_link() to delayed_call, kill ->put_link() kill free_page_put_link() teach nfs_get_link() to work in RCU mode teach proc_self_get_link()/proc_thread_self_get_link() to work in RCU mode teach shmem_get_link() to work in RCU mode teach page_get_link() to work in RCU mode replace ->follow_link() with new method that could stay in RCU mode don't put symlink bodies in pagecache into highmem namei: page_getlink() and page_follow_link_light() are the same thing ufs: get rid of ->setattr() for symlinks udf: don't duplicate page_symlink_inode_operations logfs: don't duplicate page_symlink_inode_operations switch befs long symlinks to page_symlink_operations
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