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2007-07-10SUNRPC: clean up rpc_call_async/rpc_call_sync/rpc_run_taskTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Move rpc_register_client and friends into net/sunrpc/clnt.cTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Remove redundant calls to rpciod_up()/rpciod_down()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Make create_client() take a reference to the rpciod workqueueTrond Myklebust
Ensures that an rpc_client always has the possibility to send asynchronous RPC calls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Optimise rpciod_up()Trond Myklebust
Instead of taking the mutex every time we just need to increment/decrement rpciod_users, we can optmise by using atomic_inc_not_zero and atomic_dec_and_test. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Don't create an rpc_pipefs directory before rpc_clone is initialisedTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Remove rpc_clnt->cl_countTrond Myklebust
The kref now does most of what cl_count + cl_user used to do. The only remaining role for cl_count is to tell us if we are in a 'shutdown' phase. We can provide that information using a single bit field instead of a full atomic counter. Also rename rpc_destroy_client() to rpc_close_client(), which reflects better what its role is these days. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Make rpc_clone take a reference instead of using cl_countTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Kill rpc_clnt->cl_oneshotTrond Myklebust
Replace it with explicit calls to rpc_shutdown_client() or rpc_destroy_client() (for the case of asynchronous calls). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Kill rpc_clnt->cl_deadTrond Myklebust
Its use is at best racy, and there is only one user (lockd), which has additional locking that makes the whole thing redundant. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Convert rpc_clnt->cl_users to a krefTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Clean up tk_pid allocation and make it locklessTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Add a per-rpc_clnt spinlockTrond Myklebust
Use that to protect the rpc_clnt->cl_tasks list instead of using a global lock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Move rpc_task->tk_task list into struct rpc_clntTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up nfs4_call_async()Trond Myklebust
Use rpc_run_task() instead of doing it ourselves. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10sendfile: convert nfsd to splice_direct_to_actor()Jens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-05-17Merge branch 'master' of /home/trondmy/repositories/git/linux-2.6/Trond Myklebust
2007-05-17Remove SLAB_CTOR_CONSTRUCTORChristoph Lameter
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: David Howells <dhowells@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Steven French <sfrench@us.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@ucw.cz> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-14SUNRPC: Fix sparse warningsTrond Myklebust
- net/sunrpc/xprtsock.c:1635:5: warning: symbol 'init_socket_xprt' was not declared. Should it be static? - net/sunrpc/xprtsock.c:1649:6: warning: symbol 'cleanup_socket_xprt' was not declared. Should it be static? Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-14SUNRPC: remove dead variable 'rpciod_running'Christoph Hellwig
rpciod_running is not used at all, but due to the way DECLARE_MUTEX_LOCKED works we don't get a warning for it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-09sunrpc: fix crash in rpc_malloc()Peter Zijlstra
While the comment says: * To prevent rpciod from hanging, this allocator never sleeps, * returning NULL if the request cannot be serviced immediately. The function does not actually check for NULL pointers being returned. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-09SUNRPC: Fix pointer arithmetic bug recently introduced in rpc_malloc/freeChuck Lever
Use a cleaner method to find the size of an rpc_buffer. This actually works on x86-64! Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (25 commits) sound: convert "sound" subdirectory to UTF-8 MAINTAINERS: Add cxacru website/mailing list include files: convert "include" subdirectory to UTF-8 general: convert "kernel" subdirectory to UTF-8 documentation: convert the Documentation directory to UTF-8 Convert the toplevel files CREDITS and MAINTAINERS to UTF-8. remove broken URLs from net drivers' output Magic number prefix consistency change to Documentation/magic-number.txt trivial: s/i_sem /i_mutex/ fix file specification in comments drivers/base/platform.c: fix small typo in doc misc doc and kconfig typos Remove obsolete fat_cvf help text Fix occurrences of "the the " Fix minor typoes in kernel/module.c Kconfig: Remove reference to external mqueue library Kconfig: A couple of grammatical fixes in arch/i386/Kconfig Correct comments in genrtc.c to refer to correct /proc file. Fix more "deprecated" spellos. Fix "deprecated" typoes. ... Fix trivial comment conflict in kernel/relay.c.
2007-05-09knfsd: simplify a 'while' condition in svcsock.cNeilBrown
This while loop has an overly complex condition, which performs a couple of assignments. This hurts readability. We don't really need a loop at all. We can just return -EAGAIN and (providing we set SK_DATA), the function will be called again. So discard the loop, make the complex conditional become a few clear function calls, and hopefully improve readability. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09knfsd: rpcgss: RPC_GSS_PROC_ DESTROY request will get a bad rpcWei Yongjun
If I send a RPC_GSS_PROC_DESTROY message to NFSv4 server, it will reply with a bad rpc reply which lacks an authentication verifier. Maybe this patch is needed. Send/recv packets as following: send: RemoteProcedureCall xid rpcvers = 2 prog = 100003 vers = 4 proc = 0 cred = AUTH_GSS version = 1 gss_proc = 3 (RPCSEC_GSS_DESTROY) service = 1 (RPC_GSS_SVC_NONE) verf = AUTH_GSS checksum reply: RemoteProcedureReply xid msg_type reply_stat accepted_reply Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09knfsd: fix resource leak resulting in module refcount leak for ↵Frank Filz
rpcsec_gss_krb5.ko I have been investigating a module reference count leak on the server for rpcsec_gss_krb5.ko. It turns out the problem is a reference count leak for the security context in net/sunrpc/auth_gss/svcauth_gss.c. The problem is that gss_write_init_verf() calls gss_svc_searchbyctx() which does a rsc_lookup() but never releases the reference to the context. There is another issue that rpc.svcgssd sets an "end of time" expiration for the context By adding a cache_put() call in gss_svc_searchbyctx(), and setting an expiration timeout in the downcall, cache_clean() does clean up the context and the module reference count now goes to zero after unmount. I also verified that if the context expires and then the client makes a new request, a new context is established. Here is the patch to fix the kernel, I will start a separate thread to discuss what expiration time should be set by rpc.svcgssd. Acked-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09knfsd: rpc: fix server-side wrapping of krb5i repliesNeilBrown
It's not necessarily correct to assume that the xdr_buf used to hold the server's reply must have page data whenever it has tail data. And there's no need for us to deal with that case separately anyway. Acked-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09sunrpc: fix error path in module_initAkinobu Mita
register_rpc_pipefs() needs to clean up rpc_inode_cache by kmem_cache_destroy() on register_filesystem() failure. init_sunrpc() needs to unregister rpc_pipe_fs by unregister_rpc_pipefs() when rpc_init_mempool() returns error. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09RPC: add wrapper for svc_reserve to account for checksumJeff Layton
When the kernel calls svc_reserve to downsize the expected size of an RPC reply, it fails to account for the possibility of a checksum at the end of the packet. If a client mounts a NFSv2/3 with sec=krb5i/p, and does I/O then you'll generally see messages similar to this in the server's ring buffer: RPC request reserved 164 but used 208 While I was never able to verify it, I suspect that this problem is also the root cause of some oopses I've seen under these conditions: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=227726 This is probably also a problem for other sec= types and for NFSv4. The large reserved size for NFSv4 compound packets seems to generally paper over the problem, however. This patch adds a wrapper for svc_reserve that accounts for the possibility of a checksum. It also fixes up the appropriate callers of svc_reserve to call the wrapper. For now, it just uses a hardcoded value that I determined via testing. That value may need to be revised upward as things change, or we may want to eventually add a new auth_op that attempts to calculate this somehow. Unfortunately, there doesn't seem to be a good way to reliably determine the expected checksum length prior to actually calculating it, particularly with schemes like spkm3. Signed-off-by: Jeff Layton <jlayton@redhat.com> Acked-by: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Acked-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09knfsd: rename sk_defer_lock to sk_lockNeilBrown
Now that sk_defer_lock protects two different things, make the name more generic. Also don't bother with disabling _bh as the lock is only ever taken from process context. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09Fix occurrences of "the the "Michael Opdenacker
Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-08Fix sunrpc warning noiseGeert Uytterhoeven
Commit c5a4dd8b7c15927a8fbff83171b57cad675a79b9 introduced the following compiler warnings: net/sunrpc/sched.c:766: warning: format '%u' expects type 'unsigned int', but argument 3 has type 'size_t' net/sunrpc/sched.c:785: warning: format '%u' expects type 'unsigned int', but argument 2 has type 'size_t' - Use %zu to format size_t - Kill 2 useless casts Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slab allocators: Remove SLAB_DEBUG_INITIAL flagChristoph Lameter
I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by SLAB. I think its purpose was to have a callback after an object has been freed to verify that the state is the constructor state again? The callback is performed before each freeing of an object. I would think that it is much easier to check the object state manually before the free. That also places the check near the code object manipulation of the object. Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was compiled with SLAB debugging on. If there would be code in a constructor handling SLAB_DEBUG_INITIAL then it would have to be conditional on SLAB_DEBUG otherwise it would just be dead code. But there is no such code in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real use of, difficult to understand and there are easier ways to accomplish the same effect (i.e. add debug code before kfree). There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be clear in fs inode caches. Remove the pointless checks (they would even be pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors. This is the last slab flag that SLUB did not support. Remove the check for unimplemented flags from SLUB. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-02spkm3: initialize hashJ. Bruce Fields - unquoted
There's an initialization step here I missed. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-02spkm3: remove bad kfree, unnecessary exportJ. Bruce Fields - unquoted
We're kfree()'ing something that was allocated on the stack! Also remove an unnecessary symbol export while we're at it. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-05-02spkm3: fix spkm3's use of hmacJ. Bruce Fields - unquoted
I think I botched an attempt to keep an spkm3 patch up-to-date with a recent crypto api change. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: RPC client should retry with different versions of rpcbindChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: remove old portmapperChuck Lever
net/sunrpc/pmap_clnt.c has been replaced by net/sunrpc/rpcb_clnt.c. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: switch the RPC server to use the new rpcbind registration APIChuck Lever
Eventually this interface will support versions 3 and 4 of the rpcbind protocol, which will allow the Linux RPC server to register services on IPv6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: switch socket-based RPC transports to use rpcbindChuck Lever
Now that we have a version of the portmapper that supports versions 3 and 4 of the rpcbind protocol, use it for new RPC client connections over sockets. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: introduce rpcbind: replacement for in-kernel portmapperChuck Lever
Introduce a replacement for the in-kernel portmapper client that supports all 3 versions of the rpcbind protocol. This code is not used yet. Original code by Groupe Bull updated for the latest kernel, with multiple bug fixes. Note that rpcb_clnt.c does not yet support registering via versions 3 and 4 of the rpcbind protocol. That is planned for a later patch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: Eliminate side effects from rpc_mallocChuck Lever
Currently rpc_malloc sets req->rq_buffer internally. Make this a more generic interface: return a pointer to the new buffer (or NULL) and make the caller set req->rq_buffer and req->rq_bufsize. This looks much more like kmalloc and eliminates the side effects. To fix a potential deadlock, this patch also replaces GFP_NOFS with GFP_NOWAIT in rpc_malloc. This prevents async RPCs from sleeping outside the RPC's task scheduler while allocating their buffer. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-30SUNRPC: RPC buffer size estimates are too largeChuck Lever
The RPC buffer size estimation logic in net/sunrpc/clnt.c always significantly overestimates the requirements for the buffer size. A little instrumentation demonstrated that in fact rpc_malloc was never allocating the buffer from the mempool, but almost always called kmalloc. To compute the size of the RPC buffer more precisely, split p_bufsiz into two fields; one for the argument size, and one for the result size. Then, compute the sum of the exact call and reply header sizes, and split the RPC buffer precisely between the two. That should keep almost all RPC buffers within the 2KiB buffer mempool limit. And, we can finally be rid of RPC_SLACK_SPACE! Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-04-26[SUNRPC]: cleanup: use seq_release_private() where appropriateMartin Peschke
We can save some lines of code by using seq_release_private(). Signed-off-by: Martin Peschke <mp3@de.ibm.com> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: Treat CHECKSUM_PARTIAL as CHECKSUM_UNNECESSARYHerbert Xu
When a transmitted packet is looped back directly, CHECKSUM_PARTIAL maps to the semantics of CHECKSUM_UNNECESSARY. Therefore we should treat it as such in the stack. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25[NET]: convert network timestamps to ktime_tEric Dumazet
We currently use a special structure (struct skb_timeval) and plain 'struct timeval' to store packet timestamps in sk_buffs and struct sock. This has some drawbacks : - Fixed resolution of micro second. - Waste of space on 64bit platforms where sizeof(struct timeval)=16 I suggest using ktime_t that is a nice abstraction of high resolution time services, currently capable of nanosecond resolution. As sizeof(ktime_t) is 8 bytes, using ktime_t in 'struct sock' permits a 8 byte shrink of this structure on 64bit architectures. Some other structures also benefit from this size reduction (struct ipq in ipv4/ip_fragment.c, struct frag_queue in ipv6/reassembly.c, ...) Once this ktime infrastructure adopted, we can more easily provide nanosecond resolution on top of it. (ioctl SIOCGSTAMPNS and/or SO_TIMESTAMPNS/SCM_TIMESTAMPNS) Note : this patch includes a bug correction in compat_sock_get_timestamp() where a "err = 0;" was missing (so this syscall returned -ENOENT instead of 0) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> CC: Stephen Hemminger <shemminger@linux-foundation.org> CC: John find <linux.kernel@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-20RPC: Fix the TCP resend semantics for NFSv4Trond Myklebust
Fix a regression due to the patch "NFS: disconnect before retrying NFSv4 requests over TCP" The assumption made in xprt_transmit() that the condition "req->rq_bytes_sent == 0 and request is on the receive list" should imply that we're dealing with a retransmission is false. Firstly, it may simply happen that the socket send queue was full at the time the request was initially sent through xprt_transmit(). Secondly, doing this for each request that was retransmitted implies that we disconnect and reconnect for _every_ request that happened to be retransmitted irrespective of whether or not a disconnection has already occurred. Fix is to move this logic into the call_status request timeout handler. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-17knfsd: use a spinlock to protect sk_info_authunixNeilBrown
sk_info_authunix is not being protected properly so the object that it points to can be cache_put twice, leading to corruption. We borrow svsk->sk_defer_lock to provide the protection. We should probably rename that lock to have a more generic name - later. Thanks to Gabriel for reporting this. Cc: Greg Banks <gnb@melbourne.sgi.com> Cc: Gabriel Barazer <gabriel@oxeva.fr> Signed-off-by: Neil Brown <neilb@suse.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-12[SUNRPC]: Make sure on-stack cmsg buffer is properly aligned.David S. Miller
Based upon a report from Meelis Roos. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-04[PATCH] net/sunrpc/svcsock.c: fix a checkAdrian Bunk
The return value of kernel_recvmsg() should be assigned to "err", not compared with the random value of a never initialized "err" (and the "< 0" check wrongly always returned false since == comparisons never have a result < 0). Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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