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* Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2010-08-185-8/+22
|\ | | | | | | | | | | | | | | | | | | | | | | | | * 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Fix an Oops in the NFSv4 atomic open code NFS: Fix the selection of security flavours in Kconfig NFS: fix the return value of nfs_file_fsync() rpcrdma: Fix SQ size calculation when memreg is FRMR xprtrdma: Do not truncate iova_start values in frmr registrations. nfs: Remove redundant NULL check upon kfree() nfs: Add "lookupcache" to displayed mount options NFS: allow close-to-open cache semantics to apply to root of NFS filesystem SUNRPC: fix NFS client over TCP hangs due to packet loss (Bug 16494)
| * NFS: Fix an Oops in the NFSv4 atomic open codeTrond Myklebust2010-08-182-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adam Lackorzynski reports: with 2.6.35.2 I'm getting this reproducible Oops: [ 110.825396] BUG: unable to handle kernel NULL pointer dereference at (null) [ 110.828638] IP: [<ffffffff811247b7>] encode_attrs+0x1a/0x2a4 [ 110.828638] PGD be89f067 PUD bf18f067 PMD 0 [ 110.828638] Oops: 0000 [#1] SMP [ 110.828638] last sysfs file: /sys/class/net/lo/operstate [ 110.828638] CPU 2 [ 110.828638] Modules linked in: rtc_cmos rtc_core rtc_lib amd64_edac_mod i2c_amd756 edac_core i2c_core dm_mirror dm_region_hash dm_log dm_snapshot sg sr_mod usb_storage ohci_hcd mptspi tg3 mptscsih mptbase usbcore nls_base [last unloaded: scsi_wait_scan] [ 110.828638] [ 110.828638] Pid: 11264, comm: setchecksum Not tainted 2.6.35.2 #1 [ 110.828638] RIP: 0010:[<ffffffff811247b7>] [<ffffffff811247b7>] encode_attrs+0x1a/0x2a4 [ 110.828638] RSP: 0000:ffff88003bf5b878 EFLAGS: 00010296 [ 110.828638] RAX: ffff8800bddb48a8 RBX: ffff88003bf5bb18 RCX: 0000000000000000 [ 110.828638] RDX: ffff8800be258800 RSI: 0000000000000000 RDI: ffff88003bf5b9f8 [ 110.828638] RBP: 0000000000000000 R08: ffff8800bddb48a8 R09: 0000000000000004 [ 110.828638] R10: 0000000000000003 R11: ffff8800be779000 R12: ffff8800be258800 [ 110.828638] R13: ffff88003bf5b9f8 R14: ffff88003bf5bb20 R15: ffff8800be258800 [ 110.828638] FS: 0000000000000000(0000) GS:ffff880041e00000(0063) knlGS:00000000556bd6b0 [ 110.828638] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b [ 110.828638] CR2: 0000000000000000 CR3: 00000000be8ef000 CR4: 00000000000006e0 [ 110.828638] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.828638] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 110.828638] Process setchecksum (pid: 11264, threadinfo ffff88003bf5a000, task ffff88003f232210) [ 110.828638] Stack: [ 110.828638] 0000000000000000 ffff8800bfbcf920 0000000000000000 0000000000000ffe [ 110.828638] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 110.828638] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 110.828638] Call Trace: [ 110.828638] [<ffffffff81124c1f>] ? nfs4_xdr_enc_setattr+0x90/0xb4 [ 110.828638] [<ffffffff81371161>] ? call_transmit+0x1c3/0x24a [ 110.828638] [<ffffffff813774d9>] ? __rpc_execute+0x78/0x22a [ 110.828638] [<ffffffff81371a91>] ? rpc_run_task+0x21/0x2b [ 110.828638] [<ffffffff81371b7e>] ? rpc_call_sync+0x3d/0x5d [ 110.828638] [<ffffffff8111e284>] ? _nfs4_do_setattr+0x11b/0x147 [ 110.828638] [<ffffffff81109466>] ? nfs_init_locked+0x0/0x32 [ 110.828638] [<ffffffff810ac521>] ? ifind+0x4e/0x90 [ 110.828638] [<ffffffff8111e2fb>] ? nfs4_do_setattr+0x4b/0x6e [ 110.828638] [<ffffffff8111e634>] ? nfs4_do_open+0x291/0x3a6 [ 110.828638] [<ffffffff8111ed81>] ? nfs4_open_revalidate+0x63/0x14a [ 110.828638] [<ffffffff811056c4>] ? nfs_open_revalidate+0xd7/0x161 [ 110.828638] [<ffffffff810a2de4>] ? do_lookup+0x1a4/0x201 [ 110.828638] [<ffffffff810a4733>] ? link_path_walk+0x6a/0x9d5 [ 110.828638] [<ffffffff810a42b6>] ? do_last+0x17b/0x58e [ 110.828638] [<ffffffff810a5fbe>] ? do_filp_open+0x1bd/0x56e [ 110.828638] [<ffffffff811cd5e0>] ? _atomic_dec_and_lock+0x30/0x48 [ 110.828638] [<ffffffff810a9b1b>] ? dput+0x37/0x152 [ 110.828638] [<ffffffff810ae063>] ? alloc_fd+0x69/0x10a [ 110.828638] [<ffffffff81099f39>] ? do_sys_open+0x56/0x100 [ 110.828638] [<ffffffff81027a22>] ? ia32_sysret+0x0/0x5 [ 110.828638] Code: 83 f1 01 e8 f5 ca ff ff 48 83 c4 50 5b 5d 41 5c c3 41 57 41 56 41 55 49 89 fd 41 54 49 89 d4 55 48 89 f5 53 48 81 ec 18 01 00 00 <8b> 06 89 c2 83 e2 08 83 fa 01 19 db 83 e3 f8 83 c3 18 a8 01 8d [ 110.828638] RIP [<ffffffff811247b7>] encode_attrs+0x1a/0x2a4 [ 110.828638] RSP <ffff88003bf5b878> [ 110.828638] CR2: 0000000000000000 [ 112.840396] ---[ end trace 95282e83fd77358f ]--- We need to ensure that the O_EXCL flag is turned off if the user doesn't set O_CREAT. Cc: stable@kernel.org Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: Fix the selection of security flavours in KconfigTrond Myklebust2010-08-171-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Randy Dunlap reports: ERROR: "svc_gss_principal" [fs/nfs/nfs.ko] undefined! because in fs/nfs/Kconfig, NFS_V4 selects RPCSEC_GSS_KRB5 and/or in fs/nfsd/Kconfig, NFSD_V4 selects RPCSEC_GSS_KRB5. RPCSEC_GSS_KRB5 does 5 selects, but none of these is enforced/followed by the fs/nfs[d]/Kconfig configs: select SUNRPC_GSS select CRYPTO select CRYPTO_MD5 select CRYPTO_DES select CRYPTO_CBC Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: J. Bruce Fields <bfields@fieldses.org> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: fix the return value of nfs_file_fsync()J. R. Okajima2010-08-111-1/+1
| | | | | | | | | | | | | | | | | | By the commit af7fa16 2010-08-03 NFS: Fix up the fsync code close(2) became returning the non-zero value even if it went well. nfs_file_fsync() should return 0 when "status" is positive. Signed-off-by: J. R. Okajima <hooanon05@yahoo.co.jp> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * nfs: Remove redundant NULL check upon kfree()Davidlohr Bueso2010-08-111-2/+1
| | | | | | | | | | Signed-off-by: Davidlohr Bueso <dave@gnu.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * nfs: Add "lookupcache" to displayed mount optionsPatrick J. LoPresti2010-08-101-0/+7
| | | | | | | | | | | | | | | | | | | | | | Running "cat /proc/mounts" fails to display the "lookupcache" option. This oversight cost me a bunch of wasted time recently. The following simple patch fixes it. CC: stable <stable@kernel.org> Signed-off-by: Patrick LoPresti <lopresti@gmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * NFS: allow close-to-open cache semantics to apply to root of NFS filesystemNeil Brown2010-08-101-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To obey NFS cache semantics, the client must verify the cached attributes when a file is opened. In most cases this is done by a call to d_validate as one of the last steps in path_walk. However for the root of a filesystem, d_validate is only ever called on the mounted-on filesystem (except when the path ends '.' or '..'). So NFS has no chance to validate the attributes. So, in nfs_opendir, we revalidate the attributes if the opened directory is the mountpoint. This may cause double-validation for "." and ".." lookups, but that is better than missing regular /path/name lookups completely. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2010-08-133-0/+53
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is set AFS: Implement an autocell mount capability [ver #2] DNS: If the DNS server returns an error, allow that to be cached [ver #2] NFS: Use kernel DNS resolver [ver #2] cifs: update README to include details about 'fsc' option
| * | [NFS] Set CONFIG_KEYS when CONFIG_NFS_USE_KERNEL_DNS is setSteve French2010-08-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous patch relied on DNS_RESOLVER setting CONFIG_KEYS but needs to be selected in NFS config when using the new DNS resolver Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> CC: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | NFS: Use kernel DNS resolver [ver #2]Bryan Schumaker2010-08-113-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the kernel DNS resolver to translate hostnames to IP addresses. Create a new config option to choose between the legacy DNS resolver and the new resolver. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | param: use ops in struct kernel_param, rather than get and set fns directlyRusty Russell2010-08-111-6/+5
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is more kernel-ish, saves some space, and also allows us to expand the ops without breaking all the callers who are happy for the new members to be NULL. The few places which defined their own param types are changed to the new scheme (more which crept in recently fixed in following patches). Since we're touching them anyway, we change get() and set() to take a const struct kernel_param (which they really are). This causes some harmless warnings until we fix them (in following patches). To reduce churn, module_param_call creates the ops struct so the callers don't have to change (and casts the functions to reduce warnings). The modern version which takes an ops struct is called module_param_cb. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Takashi Iwai <tiwai@suse.de> Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Alessandro Rubini <rubini@ipvvis.unipv.it> Cc: Michal Januszewski <spock@gentoo.org> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: linux-kernel@vger.kernel.org Cc: linux-input@vger.kernel.org Cc: linux-fbdev-devel@lists.sourceforge.net Cc: linux-nfs@vger.kernel.org Cc: netdev@vger.kernel.org
* | Merge branch 'for-linus' of ↵Linus Torvalds2010-08-103-6/+15
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits) no need for list_for_each_entry_safe()/resetting with superblock list Fix sget() race with failing mount vfs: don't hold s_umount over close_bdev_exclusive() call sysv: do not mark superblock dirty on remount sysv: do not mark superblock dirty on mount btrfs: remove junk sb_dirt change BFS: clean up the superblock usage AFFS: wait for sb synchronization when needed AFFS: clean up dirty flag usage cifs: truncate fallout mbcache: fix shrinker function return value mbcache: Remove unused features add f_flags to struct statfs(64) pass a struct path to vfs_statfs update VFS documentation for method changes. All filesystems that need invalidate_inode_buffers() are doing that explicitly convert remaining ->clear_inode() to ->evict_inode() Make ->drop_inode() just return whether inode needs to be dropped fs/inode.c:clear_inode() is gone fs/inode.c:evict() doesn't care about delete vs. non-delete paths now ... Fix up trivial conflicts in fs/nilfs2/super.c
| * convert remaining ->clear_inode() to ->evict_inode()Al Viro2010-08-093-6/+15
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'nfs-for-2.6.36' of ↵Linus Torvalds2010-08-0722-381/+624
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linux-nfs.org/projects/trondmy/nfs-2.6 * 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (42 commits) NFS: NFSv4.1 is no longer a "developer only" feature NFS: NFS_V4 is no longer an EXPERIMENTAL feature NFS: Fix /proc/mount for legacy binary interface NFS: Fix the locking in nfs4_callback_getattr SUNRPC: Defer deleting the security context until gss_do_free_ctx() SUNRPC: prevent task_cleanup running on freed xprt SUNRPC: Reduce asynchronous RPC task stack usage SUNRPC: Move the bound cred to struct rpc_rqst SUNRPC: Clean up of rpc_bindcred() SUNRPC: Move remaining RPC client related task initialisation into clnt.c SUNRPC: Ensure that rpc_exit() always wakes up a sleeping task SUNRPC: Make the credential cache hashtable size configurable SUNRPC: Store the hashtable size in struct rpc_cred_cache NFS: Ensure the AUTH_UNIX credcache is allocated dynamically NFS: Fix the NFS users of rpc_restart_call() SUNRPC: The function rpc_restart_call() should return success/failure NFSv4: Get rid of the bogus RPC_ASSASSINATED(task) checks NFSv4: Clean up the process of renewing the NFSv4 lease NFSv4.1: Handle NFS4ERR_DELAY on SEQUENCE correctly NFS: nfs_rename() should not have to flush out writebacks ...
| * | NFS: NFSv4.1 is no longer a "developer only" featureTrond Myklebust2010-08-061-2/+2
| | | | | | | | | | | | | | | | | | | | | Mark it as 'experimental' instead, since in practice, NFSv4.1 should now be relatively stable. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: NFS_V4 is no longer an EXPERIMENTAL featureTrond Myklebust2010-08-061-3/+3
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix /proc/mount for legacy binary interfaceBryan Schumaker2010-08-061-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add a flag so we know if we mounted the NFS server using the legacy binary interface. If we used the legacy interface, then we should not show the mountd options. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix the locking in nfs4_callback_getattrTrond Myklebust2010-08-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | The delegation is protected by RCU now, so we need to replace the nfsi->rwsem protection with an rcu protected section. Reported-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | SUNRPC: Move the bound cred to struct rpc_rqstTrond Myklebust2010-08-043-9/+8
| | | | | | | | | | | | | | | | | | | | | | | | This will allow us to save the original generic cred in rpc_message, so that if we migrate from one server to another, we can generate a new bound cred without having to punt back to the NFS layer. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix the NFS users of rpc_restart_call()Trond Myklebust2010-08-032-7/+4
| | | | | | | | | | | | | | | | | | | | | Fix up those functions that depend on knowing whether or not rpc_restart_call is successful or not. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Get rid of the bogus RPC_ASSASSINATED(task) checksTrond Myklebust2010-08-031-10/+0
| | | | | | | | | | | | | | | | | | | | | There is no real reason to have RPC_ASSASSINATED() checks in the NFS code. As far as it is concerned, this is just an RPC error... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Clean up the process of renewing the NFSv4 leaseTrond Myklebust2010-08-031-14/+9
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: Handle NFS4ERR_DELAY on SEQUENCE correctlyTrond Myklebust2010-08-031-30/+62
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In RFC5661, an NFS4ERR_DELAY error on a SEQUENCE operation has the special meaning that the server is not finished processing the request. In this case we want to just retry the request without touching the slot. Also fix a bug whereby we would fail to update the sequence id if the server returned any error other than NFS_OK/NFS4ERR_DELAY. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: nfs_rename() should not have to flush out writebacksTrond Myklebust2010-08-031-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | We don't really support nfs servers that invalidate the file handle after a rename, so precautions such as flushing out dirty data before renaming the file are superfluous. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Clean up the callers of nfs_wb_all()Trond Myklebust2010-08-032-12/+2
| | | | | | | | | | | | | | | | | | There is no need to flush out writes before calling nfs_wb_all(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix up the fsync codeTrond Myklebust2010-08-031-30/+21
| | | | | | | | | | | | | | | | | | | | | | | | Christoph points out that the VFS will always flush out data before calling nfs_fsync(), so we can dispense with a full call to nfs_wb_all(), and replace that with a simpler call to nfs_commit_inode(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Ensure the lockowners are labelled using the fl_owner and/or fl_pidTrond Myklebust2010-07-304-14/+50
| | | | | | | | | | | | | | | | | | | | | flock locks want to be labelled using the process pid, while posix locks want to be labelled using the fl_owner. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Add support for the RELEASE_LOCKOWNER operationTrond Myklebust2010-07-304-0/+86
| | | | | | | | | | | | | | | | | | | | | This is needed by NFSv4.0 servers in order to keep the number of locking stateids at a manageable level. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Clean up for lockowner XDR encodingTrond Myklebust2010-07-301-12/+20
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Ensure that we track the NFSv4 lock state in read/write requests.Trond Myklebust2010-07-306-17/+104
| | | | | | | | | | | | | | | | | | | | | This patch fixes bugzilla entry 14501: https://bugzilla.kernel.org/show_bug.cgi?id=14501 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Clean up struct nfs4_state_ownerTrond Myklebust2010-06-243-11/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | The 'so_delegations' list appears to be unused. Also eliminate so_client. If we already have so_server, we can get to the nfs_client structure. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: There is no need to init the session more than once...Trond Myklebust2010-06-222-1/+7
| | | | | | | | | | | | | | | | | | Set up a flag to ensure that is indeed the case. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Cleanup for nfs4_alloc_session.Trond Myklebust2010-06-222-7/+7
| | | | | | | | | | | | | | | | | | | | | There is no reason to change the nfs_client state every time we allocate a new session. Move that line into nfs4_init_client_minor_version. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Clean up exclusive createTrond Myklebust2010-06-221-11/+6
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Deprecate nfs_client->cl_minorversionTrond Myklebust2010-06-221-5/+5
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Fix nfs_async_inode_return_delegation() uglinessTrond Myklebust2010-06-225-19/+8
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Convert the various reboot recovery ops etc to minor version opsTrond Myklebust2010-06-224-38/+18
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Clean up the NFSv4.1 minor version specific operationsTrond Myklebust2010-06-223-9/+37
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Don't store session state in the nfs_client->cl_stateTrond Myklebust2010-06-223-5/+10
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Further cleanup for nfs4_sequence_doneTrond Myklebust2010-06-221-9/+12
| | | | | | | | | | | | | | | | | | | | | Instead of testing if the nfs_client has a session, we should be testing if the struct nfs4_sequence_res was set up with one. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: Make nfs4_setup_sequence take a nfs_server argumentTrond Myklebust2010-06-225-28/+43
| | | | | | | | | | | | | | | | | | | | | | | | In anticipation of the day when we have per-filesystem sessions, and also in order to allow the session to change in the event of a filesystem migration event. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: Merge the nfs41_proc_async_sequence() and nfs4_proc_sequence()Trond Myklebust2010-06-221-24/+44
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Kill nfs4_async_handle_error() abuses by NFSv4.1Trond Myklebust2010-06-221-37/+41
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: Simplify nfs41_sequence_done()Trond Myklebust2010-06-221-14/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | Nobody uses the rpc_status parameter. It is not obvious why we need the struct nfs_client argument either, when we already have that information in the session. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4.1: Clean up nfs4_setup_sequenceTrond Myklebust2010-06-221-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Firstly, there is little point in first zeroing out the entire struct nfs4_sequence_res, and then initialising all fields save one. Just initialise the last field to zero... Secondly, nfs41_setup_sequence() has only 2 possible return values: 0, or -EAGAIN, so there is no 'terminate rpc task' case. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv41: Fix a memory leak in nfs41_proc_async_sequence()Trond Myklebust2010-06-221-18/+21
| | | | | | | | | | | | | | | | | | | | | If the call to rpc_call_async() fails, then the arguments will not be freed, since there will be no call to nfs41_sequence_call_done Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | vfs: re-introduce MAY_CHDIREric Paris2010-08-021-1/+1
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | Currently MAY_ACCESS means that filesystems must check the permissions right then and not rely on cached results or the results of future operations on the object. This can be because of a call to sys_access() or because of a call to chdir() which needs to check search without relying on any future operations inside that dir. I plan to use MAY_ACCESS for other purposes in the security system, so I split the MAY_ACCESS and the MAY_CHDIR cases. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Stephen D. Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
* | NFS: Fix a typo in include/linux/nfs_fs.hTrond Myklebust2010-08-011-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | nfs_commit_inode() needs to be defined irrespectively of whether or not we are supporting NFSv3 and NFSv4. Allow the compiler to optimise away code in the NFSv2-only case by converting it into an inlined stub function. Reported-and-tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | NFS: Ensure that writepage respects the nonblock flagTrond Myklebust2010-07-301-6/+17
| | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | NFS: kswapd must not block in nfs_release_pageTrond Myklebust2010-07-302-4/+13
| | | | | | | | | | | | | | | | | | | | | | See https://bugzilla.kernel.org/show_bug.cgi?id=16056 If other processes are blocked waiting for kswapd to free up some memory so that they can make progress, then we cannot allow kswapd to block on those processes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: stable@kernel.org
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