- 24 12月, 2008 1 次提交
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由 Jeff Layton 提交于
My understanding is that there is a push to turn the kernel_thread interface into a non-exported symbol and move all kernel threads to use the kthread API. This patch changes lockd to use kthread_run to spawn the reclaimer thread. I've made the assumption here that the extra module references taken when we spawn this thread are unnecessary and removed them. I've also added a KERN_ERR printk that pops if the thread can't be spawned to warn the admin that the locks won't be reclaimed. In the future, it would be nice to be able to notify userspace that locks have been lost (probably by implementing SIGLOST), and adding some good policies about how long we should reattempt to reclaim the locks. Finally, I removed a comment about memory leaks that I believe is obsolete and added a new one to clarify the result of sending a SIGKILL to the reclaimer thread. As best I can tell, doing so doesn't actually cause a memory leak. I consider this patch 2.6.29 material. Signed-off-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 05 10月, 2008 1 次提交
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由 Chuck Lever 提交于
Clean up: Now that lockd_up() starts listeners for both transports, the "proto" argument is no longer needed. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Cc: Neil Brown <neilb@suse.de> Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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- 04 10月, 2008 2 次提交
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由 Chuck Lever 提交于
Adjust the signature and callers of nlmclnt_grant() to pass a "struct sockaddr *" instead of a "struct sockaddr_in *" in order to support IPv6 addresses. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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由 Chuck Lever 提交于
Pass a struct sockaddr * and a length to nlmclnt_lookup_host() to accomodate non-AF_INET family addresses. As a side benefit, eliminate the hostname_len argument, as the hostname is always NUL-terminated. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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- 30 9月, 2008 2 次提交
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由 Chuck Lever 提交于
Update the nlm_cmp_addr() helper to support AF_INET6 as well as AF_INET addresses. New version takes two "struct sockaddr *" arguments instead of "struct sockaddr_in *" arguments. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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由 Chuck Lever 提交于
To store larger addresses in the nlm_host structure, make h_addr a sockaddr_storage, and add an address length field. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Signed-off-by: NJ. Bruce Fields <bfields@citi.umich.edu>
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- 30 1月, 2008 2 次提交
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由 Chuck Lever 提交于
Clean up: pass 5 arguments to nlmclnt_init() in a structure similar to the new nfs_client_initdata structure. Signed-off-by: NChuck Lever <chuck.lever@oracle.com>
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由 Chuck Lever 提交于
We would like to remove the per-lock-operation nlm_lookup_host() call from nlmclnt_proc(). The new architecture pins an nlm_host structure to each NFS client superblock that has the "lock" mount option set. The NFS client passes in the pinned nlm_host structure during each call to nlmclnt_proc(). NFS client unmount processing "puts" the nlm_host so it can be garbage- collected later. This patch introduces externally callable NLM functions that handle mount-time nlm_host set up and tear-down. Signed-off-by: NChuck Lever <chuck.lever@oracle.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 15 5月, 2007 1 次提交
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由 Oleg Nesterov 提交于
reclaimer() calls allow_signal() which plays with parent process's ->sighand. Signed-off-by: NOleg Nesterov <oleg@tv-sign.ru> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 31 1月, 2007 1 次提交
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由 Adrian Bunk 提交于
This patch adds missing newlines to dprintk's. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 14 12月, 2006 1 次提交
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由 Al Viro 提交于
Annotated, all places switched to keeping status net-endian. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Acked-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 09 12月, 2006 1 次提交
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由 Josef Sipek 提交于
Signed-off-by: NJosef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 21 10月, 2006 1 次提交
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由 Al Viro 提交于
Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Acked-by: NTrond Myklebust <trond.myklebust@fys.uio.no> Acked-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 04 10月, 2006 3 次提交
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由 Olaf Kirch 提交于
nlmclnt_recovery would try to force a portmap rebind by setting host->h_nextrebind to 0. The right thing to do here is to set it to the current time. Signed-off-by: NOlaf Kirch <okir@suse.de> Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Olaf Kirch 提交于
This patch makes the SM_NOTIFY handling understand and use the nsm_handle. To make it a bit clear what is happening: nlmclent_prepare_reclaim and nlmclnt_finish_reclaim get open-coded into 'reclaimer' The result is tidied up. Then some of that functionality is moved out into nlm_host_rebooted (which calls nlmclnt_recovery which starts a thread which runs reclaimer). Also host_rebooted now finds an nsm_handle rather than a host, then then iterates over all hosts and deals with each host that shares that nsm_handle. Signed-off-by: NOlaf Kirch <okir@suse.de> Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Olaf Kirch 提交于
This patch introduces the nsm_handle, which is shared by all nlm_host objects referring to the same client. With this patch applied, all nlm_hosts from the same address will share the same nsm_handle. A future patch will add sharing by name. Note: this patch changes h_name so that it is no longer guaranteed to be an IP address of the host. When the host represents an NFS server, h_name will be the name passed in the mount call. When the host represents a client, h_name will be the name presented in the lock request received from the client. A h_name is only used for printing informational messages, this change should not be significant. Signed-off-by: NOlaf Kirch <okir@suse.de> Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 02 10月, 2006 2 次提交
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由 NeilBrown 提交于
If lockd_up fails - what should we expect? Do we have to later call lockd_down? Well the nfs client thinks "no", the nfs server thinks "yes". lockd thinks "yes". The only answer that really makes sense is "no" !! So: Make lockd_up only increment nlmsvc_users on success. Make nfsd handle errors from lockd_up properly. Make sure lockd_up(0) never fails when lockd is running so that the 'reclaimer' call to lockd_up doesn't need to be error checked. Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 NeilBrown 提交于
Currently lockd listens on UDP always, and TCP if CONFIG_NFSD_TCP is set. However as lockd performs services of the client as well, this is a problem. If CONFIG_NfSD_TCP is not set, and a tcp mount is used, the server will not be able to call back to lockd. So: - add an option to lockd_up saying which protocol is needed - Always open sockets for which an explicit port was given, otherwise only open a socket of the type required - Change nfsd to do one lockd_up per socket rather than one per thread. This - removes the dependancy on CONFIG_NFSD_TCP - means that lockd may open sockets other than at startup - means that lockd will *not* listen on UDP if the only mounts are TCP mount (and nfsd hasn't started). The latter is the only one that concerns me at all - I don't know if this might be a problem with some servers. Signed-off-by: NNeil Brown <neilb@suse.de> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 27 9月, 2006 1 次提交
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由 Martin Bligh 提交于
Add missing \n to dprintk Signed-off-by: NMartin Bligh <mbligh@google.com> Acked-by: NTrond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 09 6月, 2006 1 次提交
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由 Trond Myklebust 提交于
Currently it is possible for a task to remove its locks at the same time as the NLM recovery thread is trying to recover them. This quickly leads to an Oops. Protect the locks using an rw semaphore while they are being recovered. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 21 3月, 2006 4 次提交
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由 Trond Myklebust 提交于
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Trond Myklebust 提交于
The patch "stop abusing file_lock_list introduces a couple of bugs since the locks may be copied and need to be removed from the lists when they are destroyed. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Christoph Hellwig 提交于
Currently lockd directly access the file_lock_list from fs/locks.c. It does so to mark locks granted or reclaimable. This is very suboptimal, because a) lockd needs to poke into locks.c internals, and b) it needs to iterate over all locks in the system for marking locks granted or reclaimable. This patch adds lists for granted and reclaimable locks to the nlm_host structure instead, and adds locks to those. nlmclnt_lock: now adds the lock to h_granted instead of setting the NFS_LCK_GRANTED, still O(1) nlmclnt_mark_reclaim: goes away completely, replaced by a list_splice_init. Complexity reduced from O(locks in the system) to O(1) reclaimer: iterates over h_reclaim now, complexity reduced from O(locks in the system) to O(locks per nlm_host) Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Trond Myklebust 提交于
Instead we use the nlm_lockowner->pid. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 15 2月, 2006 1 次提交
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由 Trond Myklebust 提交于
If 2 threads attached to the same process are blocking on different locks on different files (maybe even on different servers) but have the same lock arguments (i.e. same offset+length - actually quite common, since most processes try to lock the entire file) then the first GRANTED call that wakes one up will also wake the other. Currently when the NLM_GRANTED callback comes in, lockd walks the list of blocked locks in search of a match to the lock that the NLM server has granted. Although it checks the lock pid, start and end, it fails to check the filehandle and the server address. By checking the filehandle and server IP address, we ensure that this only happens if the locks truly are referencing the same file. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 12月, 2005 1 次提交
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由 Trond Myklebust 提交于
When mixing -olock and -onolock mounts on the same client, we have to check that fl->fl_u.nfs_fl.owner is set before dereferencing it. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 23 6月, 2005 2 次提交
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由 Trond Myklebust 提交于
If the lock blocks, the server may send us a GRANTED message that races with the reply to our LOCK request. Make sure that we catch the GRANTED by queueing up our request on the nlm_blocked list before we send off the first LOCK rpc call. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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由 Trond Myklebust 提交于
Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
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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