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path: root/fs/nfs/delegation.c
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2008-05-16nfs: replace remaining __FUNCTION__ occurrencesHarvey Harrison1-2/+2
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-02-20nfs: fix sparse warningsHarvey Harrison1-1/+1
fs/nfs/nfs4state.c:788:34: warning: Using plain integer as NULL pointer fs/nfs/delegation.c:52:34: warning: Using plain integer as NULL pointer fs/nfs/idmap.c:312:12: warning: Using plain integer as NULL pointer fs/nfs/callback_xdr.c:257:6: warning: Using plain integer as NULL pointer fs/nfs/callback_xdr.c:270:6: warning: Using plain integer as NULL pointer fs/nfs/callback_xdr.c:281:6: warning: Using plain integer as NULL pointer Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFSv4: Deal more correctly with duplicate delegationsTrond Myklebust1-38/+51
If a (broken?) server hands out two different delegations for the same file, then we should return one of them. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFS: Add an asynchronous delegreturn operation for use in nfs_clear_inodeTrond Myklebust1-4/+25
Otherwise, there is a potential deadlock if the last dput() from an NFSv4 close() or other asynchronous operation leads to nfs_clear_inode calling the synchronous delegreturn. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2008-01-30NFS: eliminate NIPQUAD(clp->cl_addr.sin_addr)Chuck Lever1-4/+6
To ensure the NFS client displays IPv6 addresses properly, replace address family-specific NIPQUAD() invocations with a call to the RPC client to get a formatted string representing the remote peer's address. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-19NFSv4: Fix an rpc_cred reference leakage in fs/nfs/delegation.cTrond Myklebust1-1/+2
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-11NFSv4: Fix a typo in nfs_inode_reclaim_delegationTrond Myklebust1-1/+3
We were intending to put the previous instance of delegation->cred before setting a new one. Thanks to David Howells for spotting this. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09NFS: Replace file->private_data with calls to nfs_file_open_context()Trond Myklebust1-1/+1
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07NFSv4: Don't call put_rpccred() from an rcu callbackTrond Myklebust1-6/+15
Doing so would require us to introduce bh-safe locks into put_rpccred(). This patch fixes the lockdep complaint reported by Marc Dietrich: inconsistent {softirq-on-W} -> {in-softirq-W} usage. swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (rpc_credcache_lock){-+..}, at: [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 {softirq-on-W} state was registered at: [<c013e870>] __lock_acquire+0x650/0x1030 [<c013f2b1>] lock_acquire+0x61/0x80 [<c02db9ac>] _spin_lock+0x2c/0x40 [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc] [<dced56c1>] rpcauth_unbindcred+0x21/0x60 [sunrpc] [<dced3fd4>] a0 [sunrpc] [<dcecefe0>] rpc_call_sync+0x30/0x40 [sunrpc] [<dcedc73b>] rpcb_register+0xdb/0x180 [sunrpc] [<dced65b3>] svc_register+0x93/0x160 [sunrpc] [<dced6ebe>] __svc_create+0x1ee/0x220 [sunrpc] [<dced7053>] svc_create+0x13/0x20 [sunrpc] [<dcf6d722>] nfs_callback_up+0x82/0x120 [nfs] [<dcf48f36>] nfs_get_client+0x176/0x390 [nfs] [<dcf49181>] nfs4_set_client+0x31/0x190 [nfs] [<dcf49983>] nfs4_create_server+0x63/0x3b0 [nfs] [<dcf52426>] nfs4_get_sb+0x346/0x5b0 [nfs] [<c017b444>] vfs_kern_mount+0x94/0x110 [<c0190a62>] do_mount+0x1f2/0x7d0 [<c01910a6>] sys_mount+0x66/0xa0 [<c0104046>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff irq event stamp: 5277830 hardirqs last enabled at (5277830): [<c017530a>] kmem_cache_free+0x8a/0xc0 hardirqs last disabled at (5277829): [<c01752d2>] kmem_cache_free+0x52/0xc0 softirqs last enabled at (5277798): [<c0124173>] __do_softirq+0xa3/0xc0 softirqs last disabled at (5277817): [<c01241d7>] do_softirq+0x47/0x50 other info that might help us debug this: no locks held by swapper/0. stack backtrace: [<c0104fda>] show_trace_log_lvl+0x1a/0x30 [<c0105c02>] show_trace+0x12/0x20 [<c0105d15>] dump_stack+0x15/0x20 [<c013ccc3>] print_usage_bug+0x153/0x160 [<c013d8b9>] mark_lock+0x449/0x620 [<c013e824>] __lock_acquire+0x604/0x1030 [<c013f2b1>] lock_acquire+0x61/0x80 [<c02db9ac>] _spin_lock+0x2c/0x40 [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc] [<dcf6bf83>] nfs_free_delegation_callback+0x13/0x20 [nfs] [<c012f9ea>] __rcu_process_callbacks+0x6a/0x1c0 [<c012fb52>] rcu_process_callbacks+0x12/0x30 [<c0124218>] tasklet_action+0x38/0x80 [<c0124125>] __do_softirq+0x55/0xc0 [<c01241d7>] do_softirq+0x47/0x50 [<c0124605>] irq_exit+0x35/0x40 [<c0112463>] smp_apic_timer_interrupt+0x43/0x80 [<c0104a77>] apic_timer_interrupt+0x33/0x38 [<c02690df>] cpuidle_idle_call+0x6f/0x90 [<c01023c3>] cpu_idle+0x43/0x70 [<c02d8c27>] rest_init+0x47/0x50 [<c03bcb6a>] start_kernel+0x22a/0x2b0 [<00000000>] 0x0 ======================= Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Defer inode revalidation when setting up a delegationTrond Myklebust1-4/+6
Currently we force a synchronous call to __nfs_revalidate_inode() in nfs_inode_set_delegation(). This not only ensures that we cannot call nfs_inode_set_delegation from an asynchronous context, but it also slows down any call to open(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Use RCU to protect delegationsTrond Myklebust1-51/+63
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Support recalling delegations by stateid part 2Trond Myklebust1-1/+1
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Support recalling delegations by stateidTrond Myklebust1-30/+50
There appear to be some rogue servers out there that issue multiple delegations with different stateids for the same file. Ensure that when we return delegations, we do so on a per-stateid basis rather than a per-file basis. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Cleanup: pass the nfs_open_context to open recovery codeTrond Myklebust1-1/+1
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Replace vfsmount and dentry in nfs_open_context with struct pathTrond Myklebust1-1/+1
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-14NFS: Fix some 'sparse' warnings...Trond Myklebust1-1/+1
- fs/nfs/dir.c:610:8: warning: symbol 'nfs_llseek_dir' was not declared. Should it be static? - fs/nfs/dir.c:636:5: warning: symbol 'nfs_fsync_dir' was not declared. Should it be static? - fs/nfs/write.c:925:19: warning: symbol 'req' shadows an earlier one - fs/nfs/write.c:61:6: warning: symbol 'nfs_commit_rcu_free' was not declared. Should it be static? - fs/nfs/nfs4proc.c:793:5: warning: symbol 'nfs4_recover_expired_lease' was not declared. Should it be static? Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-27[PATCH] fs: Removing useless castsPanagiotis Issaris1-6/+1
* Removing useless casts * Removing useless wrapper * Conversion from kmalloc+memset to kzalloc Signed-off-by: Panagiotis Issaris <takis@issaris.org> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-22NFS: Generalise the nfs_client structureDavid Howells1-4/+5
Generalise the nfs_client structure by: (1) Moving nfs_client to a more general place (nfs_fs_sb.h). (2) Renaming its maintenance routines to be non-NFS4 specific. (3) Move those maintenance routines to a new non-NFS4 specific file (client.c) and move the declarations to internal.h. (4) Make nfs_find/get_client() take a full sockaddr_in to include the port number (will be required for NFS2/3). (5) Make nfs_find/get_client() take the NFS protocol version (again will be required to differentiate NFS2, 3 & 4 client records). Also: (6) Make nfs_client construction proceed akin to inodes, marking them as under construction and providing a function to indicate completion. (7) Make nfs_get_client() wait interruptibly if it finds a client that it can share, but that client is currently being constructed. (8) Make nfs4_create_client() use (6) and (7) instead of locking cl_sem. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-22NFS: Rename nfs_server::nfs4_stateDavid Howells1-6/+6
Rename nfs_server::nfs4_state to nfs_client as it will be used to represent the client state for NFS2 and NFS3 also. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-09-22NFS: Rename struct nfs4_client to struct nfs_clientDavid Howells1-12/+12
Rename struct nfs4_client to struct nfs_client so that it can become the basis for a general client record for NFS2 and NFS3 in addition to NFS4. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel1-1/+0
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-20NFSv4: Send the delegation stateid for SETATTR callsTrond Myklebust1-0/+19
In the case where we hold a delegation stateid, use that in for inside SETATTR calls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06NFSv4: Fix an Oops in nfs_do_expire_all_delegationsTrond Myklebust1-4/+2
If the loop errors, we need to exit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06NFSv4: Ensure DELEGRETURN returns attributesTrond Myklebust1-2/+0
Upon return of a write delegation, the server will almost always bump the change attribute. Ensure that we pick up that change so that we don't invalidate our data cache unnecessarily. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06NFSv4: Ensure change attribute returned by GETATTR callback conforms to specTrond Myklebust1-0/+1
According to RFC3530 we're supposed to cache the change attribute at the time the client receives a write delegation. If the inode is clean, a CB_GETATTR callback by the server to the client is supposed to return the cached change attribute. If, OTOH, the inode is dirty, the client should bump the cached change attribute by 1. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06NFSv4: Send RENEW requests to the server only when we're holding stateTrond Myklebust1-0/+46
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-11-07[PATCH] kfree cleanup: fsJesper Juhl1-2/+1
This is the fs/ part of the big kfree cleanup patch. Remove pointless checks for NULL prior to calling kfree() in fs/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-04NFSv4: Recover locks too when returning a delegationTrond Myklebust1-2/+36
Delegations allow us to cache posix and BSD locks, however when the delegation is recalled, we need to "flush the cache" and send the cached LOCK requests to the server. This patch sets up the mechanism for doing so. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-10-18NFSv4: Return delegation upon rename or removal of file.Trond Myklebust1-1/+1
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-10-17[PATCH] NFS: Fix cache consistency racesTrond Myklebust1-0/+4
If the data cache has been marked as potentially invalid by nfs_refresh_inode, we should invalidate it rather than assume that changes are due to our own activity. Also ensure that we always start with a valid cache before declaring it to be protected by a delegation. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-22[PATCH] NFS: Header file cleanup...Trond Myklebust1-0/+1
- Move NFSv4 state definitions into a private header file. - Clean up gunk in nfs_fs.h Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+342
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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