summaryrefslogtreecommitdiffstats
path: root/fs/nfsd/vfs.h (follow)
Commit message (Collapse)AuthorAgeFilesLines
* nfsd: switch unsigned char flags in svc_fh to boolsJeff Layton2015-10-121-2/+2
| | | | | | | ...just for clarity. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* NFSD: Set the attributes used to store the verifier for EXCLUSIVE4_1Kinglong Mee2015-08-311-0/+6
| | | | | | | | | | | According to rfc5661 18.16.4, "If EXCLUSIVE4_1 was used, the client determines the attributes used for the verifier by comparing attrset with cva_attrs.attrmask;" So, EXCLUSIVE4_1 also needs those bitmask used to store the verifier. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: take struct file setup fully into nfs4_preprocess_stateid_opChristoph Hellwig2015-06-221-0/+4
| | | | | | | | | | | | | | | | | This patch changes nfs4_preprocess_stateid_op so it always returns a valid struct file if it has been asked for that. For that we now allocate a temporary struct file for special stateids, and check permissions if we got the file structure from the stateid. This ensures that all callers will get their handling of special stateids right, and avoids code duplication. There is a little wart in here because the read code needs to know if we allocated a file structure so that it can copy around the read-ahead parameters. In the long run we should probably aim to cache full file structures used with special stateids instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: clean up raparams handlingChristoph Hellwig2015-06-191-3/+3
| | | | | | | | Refactor the raparam hash helpers to just deal with the raparms, and keep opening/closing files separate from that. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: remove nfsd_closeChristoph Hellwig2015-05-041-1/+0
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2014-12-171-0/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: "A comparatively quieter cycle for nfsd this time, but still with two larger changes: - RPC server scalability improvements from Jeff Layton (using RCU instead of a spinlock to find idle threads). - server-side NFSv4.2 ALLOCATE/DEALLOCATE support from Anna Schumaker, enabling fallocate on new clients" * 'for-3.19' of git://linux-nfs.org/~bfields/linux: (32 commits) nfsd4: fix xdr4 count of server in fs_location4 nfsd4: fix xdr4 inclusion of escaped char sunrpc/cache: convert to use string_escape_str() sunrpc: only call test_bit once in svc_xprt_received fs: nfsd: Fix signedness bug in compare_blob sunrpc: add some tracepoints around enqueue and dequeue of svc_xprt sunrpc: convert to lockless lookup of queued server threads sunrpc: fix potential races in pool_stats collection sunrpc: add a rcu_head to svc_rqst and use kfree_rcu to free it sunrpc: require svc_create callers to pass in meaningful shutdown routine sunrpc: have svc_wake_up only deal with pool 0 sunrpc: convert sp_task_pending flag to use atomic bitops sunrpc: move rq_cachetype field to better optimize space sunrpc: move rq_splice_ok flag into rq_flags sunrpc: move rq_dropme flag into rq_flags sunrpc: move rq_usedeferral flag to rq_flags sunrpc: move rq_local field to rq_flags sunrpc: add a generic rq_flags field to svc_rqst and move rq_secure to it nfsd: minor off by one checks in __write_versions() sunrpc: release svc_pool_map reference when serv allocation fails ...
| * nfsd: Add ALLOCATE supportAnna Schumaker2014-11-071-0/+2
| | | | | | | | | | | | | | | | | | | | | | The ALLOCATE operation is used to preallocate space in a file. I can do this by using vfs_fallocate() to do the actual preallocation. ALLOCATE only returns a status indicator, so we don't need to write a special encode() function. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | vfs: make first argument of dir_context.actor typedMiklos Szeredi2014-10-311-2/+2
|/ | | | | Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* NFSD: Remove iattr parameter from nfsd_symlink()Kinglong Mee2014-07-081-1/+1
| | | | | | | | | Commit db2e747b1499 (vfs: remove mode parameter from vfs_symlink()) have remove mode parameter from vfs_symlink. So that, iattr isn't needed by nfsd_symlink now, just remove it. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: let nfsd_symlink assume null-terminated dataJ. Bruce Fields2014-07-081-1/+1
| | | | | | | | | | | | | | | | Currently nfsd_symlink has a weird hack to serve callers who don't null-terminate symlink data: it looks ahead at the next byte to see if it's zero, and copies it to a new buffer to null-terminate if not. That means callers don't have to null-terminate, but they *do* have to ensure that the byte following the end of the data is theirs to read. That's a bit subtle, and the NFSv4 code actually got this wrong. So let's just throw out that code and let callers pass null-terminated strings; we've already fixed them to do that. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: nfsd_splice_read and nfsd_readv should return __be32Jeff Layton2014-06-231-2/+2
| | | | | | | | | | The callers expect a __be32 return and the functions they call return __be32, so having these return int is just wrong. Also, nfsd_finish_read can be made static. Signed-off-by: Jeff Layton <jlayton@primarydata.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: remove unused function nfsd_read_fileChristoph Hellwig2014-05-301-2/+0
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: separate splice and readv casesJ. Bruce Fields2014-05-301-0/+8
| | | | | | | | | | | | The splice and readv cases are actually quite different--for example the former case ignores the array of vectors we build up for the latter. It is probably clearer to separate the two cases entirely. There's some code duplication between the split out encoders, but this is only temporary and will be fixed by a later patch. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* Merge branch 'for-3.14' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2014-01-301-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull nfsd updates from Bruce Fields: - Handle some loose ends from the vfs read delegation support. (For example nfsd can stop breaking leases on its own in a fewer places where it can now depend on the vfs to.) - Make life a little easier for NFSv4-only configurations (thanks to Kinglong Mee). - Fix some gss-proxy problems (thanks Jeff Layton). - miscellaneous bug fixes and cleanup * 'for-3.14' of git://linux-nfs.org/~bfields/linux: (38 commits) nfsd: consider CLAIM_FH when handing out delegation nfsd4: fix delegation-unlink/rename race nfsd4: delay setting current_fh in open nfsd4: minor nfs4_setlease cleanup gss_krb5: use lcm from kernel lib nfsd4: decrease nfsd4_encode_fattr stack usage nfsd: fix encode_entryplus_baggage stack usage nfsd4: simplify xdr encoding of nfsv4 names nfsd4: encode_rdattr_error cleanup nfsd4: nfsd4_encode_fattr cleanup minor svcauth_gss.c cleanup nfsd4: better VERIFY comment nfsd4: break only delegations when appropriate NFSD: Fix a memory leak in nfsd4_create_session sunrpc: get rid of use_gssp_lock sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clnt sunrpc: don't wait for write before allowing reads from use-gss-proxy file nfsd: get rid of unused function definition Define op_iattr for nfsd4_open instead using macro NFSD: fix compile warning without CONFIG_NFSD_V3 ...
| * nfsd: get rid of unused function definitionKinglong Mee2014-01-061-2/+0
| | | | | | | | | | Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* | nfsd: use get_acl and ->set_aclChristoph Hellwig2014-01-261-8/+0
|/ | | | | | | | | Remove the boilerplate code to marshall and unmarhall ACL objects into xattrs and operate on the posix_acl objects directly. Also move all the ACL handling code into nfs?acl.c where it belongs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* NFSD: Server implementation of MAC LabelingDavid Quigley2013-05-151-0/+2
| | | | | | | | | | | | | Implement labeled NFS on the server: encoding and decoding, and writing and reading, of file labels. Enabled with CONFIG_NFSD_V4_SECURITY_LABEL. Signed-off-by: Matthew N. Dodd <Matthew.Dodd@sparta.com> Signed-off-by: Miguel Rodel Felipe <Rodel_FM@dsi.a-star.edu.sg> Signed-off-by: Phua Eu Gene <PHUA_Eu_Gene@dsi.a-star.edu.sg> Signed-off-by: Khin Mi Mi Aung <Mi_Mi_AUNG@dsi.a-star.edu.sg> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: get rid of the unused functions in vfsZhao Hongjiang2013-05-131-5/+0
| | | | | | | | | The fh_lock_parent(), nfsd_truncate(), nfsd_notify_change() and nfsd_sync_dir() fuctions are neither implemented nor used, just remove them. Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* switch vfs_getattr() to struct pathAl Viro2013-02-261-0/+8
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* nfsd: Push mnt_want_write() outside of i_mutexJan Kara2012-07-301-2/+9
| | | | | | | | | | | When mnt_want_write() starts to handle freezing it will get a full lock semantics requiring proper lock ordering. So push mnt_want_write() call consistently outside of i_mutex. CC: linux-nfs@vger.kernel.org CC: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* nfsd: vfs_llseek() with 32 or 64 bit offsets (hashes)Bernd Schubert2012-03-191-0/+2
| | | | | | | | | | | | | | | | Use 32-bit or 64-bit llseek() hashes for directory offsets depending on the NFS version. NFSv2 gets 32-bit hashes only. NOTE: This patch got rather complex as Christoph asked to set the filp->f_mode flag in the open call or immediatly after dentry_open() in nfsd_open() to avoid races. Personally I still do not see a reason for that and in my opinion FMODE_32BITHASH/FMODE_64BITHASH flags could be set nfsd_readdir(), as it follows directly after nfsd_open() without a chance of races. Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: J. Bruce Fields<bfields@redhat.com>
* fs: propagate umode_t, misc bitsAl Viro2012-01-041-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* new helpers: fh_{want,drop}_write()Al Viro2012-01-041-0/+10
| | | | | | | A bunch of places in nfsd does mnt_{want,drop}_write on vfsmount of export of given fhandle. Switched to obvious inlined helpers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* nfsd4: warn on open failure after createJ. Bruce Fields2011-10-171-1/+1
| | | | | | | | | | If we create the object and then return failure to the client, we're left with an unexpected file in the filesystem. I'm trying to eliminate such cases but not 100% sure I have so an assertion might be helpful for now. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: prettify NFSD_MAY_* flag definitionsJ. Bruce Fields2011-08-271-14/+14
| | | | | Acked-by: Jim Rees <rees@umich.edu> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: permit read opens of executable-only filesJ. Bruce Fields2011-08-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | A client that wants to execute a file must be able to read it. Read opens over nfs are therefore implicitly allowed for executable files even when those files are not readable. NFSv2/v3 get this right by using a passed-in NFSD_MAY_OWNER_OVERRIDE on read requests, but NFSv4 has gotten this wrong ever since dc730e173785e29b297aa605786c94adaffe2544 "nfsd4: fix owner-override on open", when we realized that the file owner shouldn't override permissions on non-reclaim NFSv4 opens. So we can't use NFSD_MAY_OWNER_OVERRIDE to tell nfsd_permission to allow reads of executable files. So, do the same thing we do whenever we encounter another weird NFS permission nit: define yet another NFSD_MAY_* flag. The industry's future standardization on 128-bit processors will be motivated primarily by the need for integers with enough bits for all the NFSD_MAY_* flags. Reported-by: Leonardo Borda <leonardoborda@gmail.com> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd41: make sure nfs server process OPEN with EXCLUSIVE4_1 correctlyMi Jinlong2011-04-301-1/+1
| | | | | | | | | | | The NFS server uses nfsd_create_v3 to handle EXCLUSIVE4_1 opens, but that function is not prepared to handle them. Rename nfsd_create_v3() to do_nfsd_create(), and add handling of EXCLUSIVE4_1. Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd4: allow fh_verify caller to skip pseudoflavor checksJ. Bruce Fields2011-04-111-0/+1
| | | | Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: distinguish functions of NFSD_MAY_* flagsJ. Bruce Fields2011-04-111-0/+3
| | | | | | | | | | | | Most of the NFSD_MAY_* flags actually request permissions, but over the years we've accreted a few that modify the behavior of the permission or open code in other ways. Distinguish the two cases a little more. In particular, allow the shortcut at the start of nfsd_permission to ignore the non-permission-requesting bits. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: minor nfsd read api cleanupJ. Bruce Fields2010-07-301-1/+3
| | | | | | | | | Christoph points that the NFSv2/v3 callers know which case they want here, so we may as well just call the file=NULL case directly instead of making this conditional. Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
* nfsd: don't break lease while servicing a COMMITJeff Layton2010-03-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the second attempt to fix the problem whereby a COMMIT call causes a lease break and triggers a possible deadlock. The problem is that nfsd attempts to break a lease on a COMMIT call. This triggers a delegation recall if the lease is held for a delegation. If the client is the one holding the delegation and it's the same one on which it's issuing the COMMIT, then it can't return that delegation until the COMMIT is complete. But, nfsd won't complete the COMMIT until the delegation is returned. The client and server are essentially deadlocked until the state is marked bad (due to the client not responding on the callback channel). The first patch attempted to deal with this by eliminating the open of the file altogether and simply had nfsd_commit pass a NULL file pointer to the vfs_fsync_range. That would conflict with some work in progress by Christoph Hellwig to clean up the fsync interface, so this patch takes a different approach. This declares a new NFSD_MAY_NOT_BREAK_LEASE access flag that indicates to nfsd_open that it should not break any leases when opening the file, and has nfsd_commit set that flag on the nfsd_open call. For now, this patch leaves nfsd_commit opening the file with write access since I'm not clear on what sort of access would be more appropriate. Signed-off-by: Jeff Layton <jlayton@redhat.com> Cc: stable@kernel.org Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: move most of nfsfh.h to fs/nfsdJ. Bruce Fields2009-12-151-0/+2
| | | | | | Most of this can be trivially moved to a private header as well. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: filter readdir results in V4ROOT caseJ. Bruce Fields2009-12-151-0/+1
| | | | | | | | | | As with lookup, we treat every boject as a mountpoint and pretend it doesn't exist if it isn't exported. The preexisting code here is confusing, but I haven't yet figured out how to make it clearer. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* nfsd: make fs/nfsd/vfs.h for common includesJ. Bruce Fields2009-11-131-0/+98
None of this stuff is used outside nfsd, so move it out of the common linux include directory. Actually, probably none of the stuff in include/linux/nfsd/nfsd.h really belongs there, so later we may remove that file entirely. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 01:06:53 +0100