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* [PATCH] knfsd: consolidate common code for statd->lockd notificationOlaf Kirch2006-10-04
| | | | | | | | | | | | | Common code from nlm4svc_proc_sm_notify and nlmsvc_proc_sm_notify is moved into a new nlm_host_rebooted. This is in preparation of a patch that will change the reboot notification handling entirely. Signed-off-by: Olaf Kirch <okir@suse.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: hide use of lockd's h_monitored flagOlaf Kirch2006-10-04
| | | | | | | | | | | | | | | This patch moves all checks of the h_monitored flag into the nsm_monitor/unmonitor functions. A subsequent patch will replace the mechanism by which we mark a host as being monitored. There is still one occurence of h_monitored outside of mon.c and that is in clntlock.c where we respond to a reboot. The subsequent patch will modify this too. Signed-off-by: Olaf Kirch <okir@suse.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: make nfsd readahead params cache SMP-friendlyGreg Banks2006-10-04
| | | | | | | | | | | | | | | | | | | Make the nfsd read-ahead params cache more SMP-friendly by changing the single global list and lock into a fixed 16-bucket hashtable with per-bucket locks. This reduces spinlock contention in nfsd_read() on read-heavy workloads on multiprocessor servers. Testing was on a 4 CPU 4 NIC Altix using 4 IRIX clients each doing 1K streaming reads at full line rate. The server had 128 nfsd threads, which sizes the RA cache at 256 entries, of which only a handful were used. Flat profiling shows nfsd_read(), including the inlined nfsd_get_raparms(), taking 10.4% of each CPU. This patch drops the contribution from nfsd() to 1.71% for each CPU. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Allow max size of NFSd payload to be configuredNeilBrown2006-10-04
| | | | | | | | | | | | | The max possible is the maximum RPC payload. The default depends on amount of total memory. The value can be set within reason as long as no nfsd threads are currently running. The value can also be ready, allowing the default to be determined after nfsd has started. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Prepare knfsd for support of rsize/wsize of up to 1MB, over TCPGreg Banks2006-10-04
| | | | | | | | | | | | | | | | The limit over UDP remains at 32K. Also, make some of the apparently arbitrary sizing constants clearer. The biggest change here involves replacing NFSSVC_MAXBLKSIZE by a function of the rqstp. This allows it to be different for different protocols (udp/tcp) and also allows it to depend on the servers declared sv_bufsiz. Note that we don't actually increase sv_bufsz for nfs yet. That comes next. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Avoid excess stack usage in svc_tcp_recvfromNeilBrown2006-10-04
| | | | | | | | | | | | | | | | | | .. by allocating the array of 'kvec' in 'struct svc_rqst'. As we plan to increase RPCSVC_MAXPAGES from 8 upto 256, we can no longer allocate an array of this size on the stack. So we allocate it in 'struct svc_rqst'. However svc_rqst contains (indirectly) an array of the same type and size (actually several, but they are in a union). So rather than waste space, we move those arrays out of the separately allocated union and into svc_rqst to share with the kvec moved out of svc_tcp_recvfrom (various arrays are used at different times, so there is no conflict). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Replace two page lists in struct svc_rqst with oneNeilBrown2006-10-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We are planning to increase RPCSVC_MAXPAGES from about 8 to about 256. This means we need to be a bit careful about arrays of size RPCSVC_MAXPAGES. struct svc_rqst contains two such arrays. However the there are never more that RPCSVC_MAXPAGES pages in the two arrays together, so only one array is needed. The two arrays are for the pages holding the request, and the pages holding the reply. Instead of two arrays, we can simply keep an index into where the first reply page is. This patch also removes a number of small inline functions that probably server to obscure what is going on rather than clarify it, and opencode the needed functionality. Also remove the 'rq_restailpage' variable as it is *always* 0. i.e. if the response 'xdr' structure has a non-empty tail it is always in the same pages as the head. check counters are initilised and incr properly check for consistant usage of ++ etc maybe extra some inlines for common approach general review Signed-off-by: Neil Brown <neilb@suse.de> Cc: Magnus Maatta <novell@kiruna.se> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Fixed handling of lockd fail when adding nfsd socketNeilBrown2006-10-04
| | | | | | | | | | Arrgg.. We cannot 'lockd_up' before 'svc_addsock' as we don't know the protocol yet.... So switch it around again and save the name of the created sockets so that it can be closed if lock_up fails. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: Protect update to sn_nrthreads with lock_kernelNeilBrown2006-10-04
| | | | | | Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: call lockd_down when closing a socket via a write to ↵NeilBrown2006-10-04
| | | | | | | | | | | | | | | | | | nfsd/portlist The refcount that nfsd holds on lockd is based on the number of open sockets. So when we close a socket, we should decrement the ref (with lockd_down). Currently when a socket is closed via writing to the portlist file, that doesn't happen. So: make sure we get an error return if the socket that was requested does is not found, and call lockd_down if it was. Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd: lockdep annotation fixNeilBrown2006-10-04
| | | | | | | | nfsv2 needs the I_MUTEX_PARENT on the directory when creating a file too. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Remove unnecessary check in fs/reiserfs/inode.cEric Sesterhenn2006-10-04
| | | | | | | | | | | Since all callers dereference dir, we dont need this check. Coverity id #337. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Cc: Jeff Mahoney <jeffm@suse.com> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* BUG_ON conversion for fs/xfs/Eric Sesterhenn2006-10-03
| | | | | | | | | This patch converts two if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON() conversion in fs/nfsd/Eric Sesterhenn2006-10-03
| | | | | | | | | This patch converts an if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* BUG_ON conversion for fs/reiserfsEric Sesterhenn2006-10-03
| | | | | | | | | | This patch converts several if () BUG(); construct to BUG_ON(); which occupies less space, uses unlikely and is safer when BUG() is disabled. S_ISREG() has no side effects, so the conversion is safe. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* debugfs: spelling fixKomal Shah2006-10-03
| | | | | | | Change debufs_create_file() to debugfs_create_file(). Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* fix file specification in commentsUwe Zeisberger2006-10-03
| | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Still more typo fixesMatt LaPlante2006-10-03
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* more misc typo fixesMatt LaPlante2006-10-03
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* Typos in fs/KconfigMatt LaPlante2006-10-03
| | | | Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] pr_debug: sysfs: use size_t length modifier in pr_debug format argumentsZach Brown2006-10-03
| | | | | | | | sysfs: use size_t length modifier in pr_debug format arguments Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pr_debug: configfs: use size_t length modifier in pr_debug format ↵Zach Brown2006-10-03
| | | | | | | | | | | argument configfs: use size_t length modifier in pr_debug format argument Signed-off-by: Zach Brown <zach.brown@oracle.com> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pr_debug: aio: use size_t length modifier in pr_debug format argumentsZach Brown2006-10-03
| | | | | | | | aio: use size_t length modifier in pr_debug format arguments Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/eventpoll: error handling micro-cleanupJeff Garzik2006-10-03
| | | | | | | | | | | While reviewing the 'may be used uninitialized' bogus gcc warnings, I noticed that an error code assignment was only needed if an error had actually occured. Signed-off-by: Jeff Garzik <jeff@garzik.org> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] VFS: Make filldir_t and struct kstat deal in 64-bit inode numbersDavid Howells2006-10-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These patches make the kernel pass 64-bit inode numbers internally when communicating to userspace, even on a 32-bit system. They are required because some filesystems have intrinsic 64-bit inode numbers: NFS3+ and XFS for example. The 64-bit inode numbers are then propagated to userspace automatically where the arch supports it. Problems have been seen with userspace (eg: ld.so) using the 64-bit inode number returned by stat64() or getdents64() to differentiate files, and failing because the 64-bit inode number space was compressed to 32-bits, and so overlaps occur. This patch: Make filldir_t take a 64-bit inode number and struct kstat carry a 64-bit inode number so that 64-bit inode numbers can be passed back to userspace. The stat functions then returns the full 64-bit inode number where available and where possible. If it is not possible to represent the inode number supplied by the filesystem in the field provided by userspace, then error EOVERFLOW will be issued. Similarly, the getdents/readdir functions now pass the full 64-bit inode number to userspace where possible, returning EOVERFLOW instead when a directory entry is encountered that can't be properly represented. Note that this means that some inodes will not be stat'able on a 32-bit system with old libraries where they were before - but it does mean that there will be no ambiguity over what a 32-bit inode number refers to. Note similarly that directory scans may be cut short with an error on a 32-bit system with old libraries where the scan would work before for the same reasons. It is judged unlikely that this situation will occur because modern glibc uses 64-bit capable versions of stat and getdents class functions exclusively, and that older systems are unlikely to encounter unrepresentable inode numbers anyway. [akpm: alpha build fix] Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2006-10-02
|\ | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: White space cleanup [PATCH] JFS: return correct error when i-node allocation failed JFS: Remove shadow variable from fs/jfs/jfs_txnmgr.c:xtLog()
| * JFS: White space cleanupDave Kleikamp2006-10-02
| | | | | | | | | | | | | | | | Removed trailing spaces & tabs, and spaces preceding tabs. Also a couple very minor comment cleanups. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from f74156539964d7b3d5164fdf8848e6a682f75b97 commit)
| * [PATCH] JFS: return correct error when i-node allocation failedAkinobu Mita2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have seen confusing behavior on JFS when I injected many intentional slab allocation errors. The cp command failed with no disk space error with enough disk space. This patch makes: - change the return value in case slab allocation failures happen from -ENOSPC to -ENOMEM - ialloc() return error code so that the caller can know the reason of failures Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from 2b46f77976f798f3fe800809a1d0ed38763c71c8 commit)
| * JFS: Remove shadow variable from fs/jfs/jfs_txnmgr.c:xtLog()Tony Breeds2006-10-02
| | | | | | | | | | | | Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> (cherry picked from bdc3d9e5af7d9c105be734dd7b5c3f1d9425a15a commit)
* | [PATCH] BLOCK: Revert patch to hack around undeclared sigset_t in linux/compat.hDavid Howells2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert Andrew Morton's patch to temporarily hack around the lack of a declaration of sigset_t in linux/compat.h to make the block-disablement patches build on IA64. This got accidentally pushed to Linus and should be fixed in a different manner. Also make linux/compat.h #include asm/signal.h to gain a definition of sigset_t so that it can externally declare sigset_from_compat(). This has been compile-tested for i386, x86_64, ia64, mips, mips64, frv, ppc and ppc64 and run-tested on frv. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] introduce get_task_pid() to fix unsafe get_pid()Oleg Nesterov2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | proc_pid_make_inode: ei->pid = get_pid(task_pid(task)); I think this is not safe. get_pid() can be preempted after checking "pid != NULL". Then the task exits, does detach_pid(), and RCU frees the pid. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: comment what proc_fill_cache doesEric W. Biederman2006-10-02
| | | | | | | | | | | | | | Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: remove the useless SMP-safe comments from /procEric W. Biederman2006-10-02
| | | | | | | | | | | | | | Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: remove trailing blank entry from pid_entry arraysEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | It was pointed out that since I am taking ARRAY_SIZE anyway the trailing empty entry is silly and just wastes space. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: properly compute TGID_OFFSETEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | The value doesn't change but this ensures I will have the proper value when other files are added to proc_base_stuff. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: drop tasklist lock in task_state()Oleg Nesterov2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | task_state() needs tasklist_lock to protect ->parent/->real_parent. However task->parent points to nowhere only when the actions below happen in order 1) release_task(task) 2) release_task(task->parent) 3) a grace period passed But 3) implies that the memory ops from 1) should be finished, so pid_alive() can't be true in such a case. Otherwise, we don't care if ->parent/->real_parent changes under us. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: convert do_task_stat() to use lock_task_sighand()Oleg Nesterov2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drop tasklist_lock. ->siglock protects almost all interesting data (including sub-threads traversal) except: ->signal->tty protected by tty_mutex ->real_parent the task can't be unhashed while we are holding ->siglock, so ->real_parent can change from under us but we can safely dereference it under rcu_read_lock() ->pgrp/->session we can get inconsistent numbers if the task does sys_setsid/daemonize at the same time. I hope this is acceptable. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: convert task_sig() to use lock_task_sighand()Oleg Nesterov2006-10-02
| | | | | | | | | | | | | | | | | | lock_task_sighand() can take ->siglock without holding tasklist_lock. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: Use pid_task instead of open coding itEric W. Biederman2006-10-02
| | | | | | | | | | | | Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: Merge proc_tid_attr and proc_tgid_attrEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | The implementation is exactly the same and there is currently nothing to distinguish proc_tid_attr, and proc_tgid_attr. So it is pointless to have two separate implementations. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: Remove the hard coded inode numbersEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hard coded inode numbers in proc currently limit its maintainability, its flexibility, and what can be done with the rest of system. /proc limits pid-max to 32768 on 32 bit systems it limits fd-max to 32768 on all systems, and placing the pid in the inode number really gets in the way of implementing subdirectories of per process information. Ever since people started adding to the middle of the file type enumeration we haven't been maintaing the historical inode numbers, all we have really succeeded in doing is keeping the pid in the proc inode number. The pid is already available in the directory name so no information is lost removing it from the inode number. So if something in user space cares if we remove the inode number from the /proc inode it is almost certainly broken. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: Factor out an instantiate method from every lookup methodEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | To remove the hard coded proc inode numbers it is necessary to be able to create the proc inodes during readdir. The instantiate methods are the subset of lookup that is needed to accomplish that. This first step just splits the lookup methods into 2 functions. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] proc: Make the generation of the self symlink table drivenEric W. Biederman2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch generalizes the concept of files in /proc that are related to processes but live in the root directory of /proc Ideally this would reuse infrastructure from the rest of the process specific parts of proc but unfortunately security_task_to_inode must not be called on files that are not strictly per process. security_task_to_inode really needs to be reexamined as the security label can change in important places that we are not currently catching, but I'm not certain that simplifies this problem. By at least matching the structure of the rest of proc we get more idiom reuse and it becomes easier to spot problems in the way things are put together. Later things like /proc/mounts are likely to be moved into proc_base as well. If union mounts are ever supported we may be able to make /proc a union mount, and properly split it into 2 filesystems. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] namespaces: utsname: use init_utsname when appropriateSerge E. Hallyn2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some places, particularly drivers and __init code, the init utsns is the appropriate one to use. This patch replaces those with a the init_utsname helper. Changes: Removed several uses of init_utsname(). Hope I picked all the right ones in net/ipv4/ipconfig.c. These are now changed to utsname() (the per-process namespace utsname) in the previous patch (2/7) [akpm@osdl.org: CIFS fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Cc: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] namespaces: utsname: switch to using uts namespacesSerge E. Hallyn2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace references to system_utsname to the per-process uts namespace where appropriate. This includes things like uname. Changes: Per Eric Biederman's comments, use the per-process uts namespace for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c [jdike@addtoit.com: UML fix] [clg@fr.ibm.com: cleanup] [akpm@osdl.org: build fix] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] namespaces: incorporate fs namespace into nsproxySerge E. Hallyn2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This moves the mount namespace into the nsproxy. The mount namespace count now refers to the number of nsproxies point to it, rather than the number of tasks. As a result, the unshare_namespace() function in kernel/fork.c no longer checks whether it is being shared. Signed-off-by: Serge Hallyn <serue@us.ibm.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Andrey Savochkin <saw@sw.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] nfsd: lockdep annotationPeter Zijlstra2006-10-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | while doing a kernel make modules_install install over an NFS mount. ============================================= [ INFO: possible recursive locking detected ] --------------------------------------------- nfsd/9550 is trying to acquire lock: (&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f but task is already holding lock: (&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f other info that might help us debug this: 2 locks held by nfsd/9550: #0: (hash_sem){..--}, at: [<cc895223>] exp_readlock+0xd/0xf [nfsd] #1: (&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f stack backtrace: [<c0103508>] show_trace_log_lvl+0x58/0x152 [<c0103b8b>] show_trace+0xd/0x10 [<c0103c2f>] dump_stack+0x19/0x1b [<c012aa57>] __lock_acquire+0x77a/0x9a3 [<c012af4a>] lock_acquire+0x60/0x80 [<c034c6c2>] __mutex_lock_slowpath+0xa7/0x20e [<c034c845>] mutex_lock+0x1c/0x1f [<c0162edc>] vfs_unlink+0x34/0x8a [<cc891d98>] nfsd_unlink+0x18f/0x1e2 [nfsd] [<cc89884f>] nfsd3_proc_remove+0x95/0xa2 [nfsd] [<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd] [<c033e84d>] svc_process+0x3a5/0x5ed [<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd] [<c0101005>] kernel_thread_helper+0x5/0xb DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb Leftover inexact backtrace: [<c0103b8b>] show_trace+0xd/0x10 [<c0103c2f>] dump_stack+0x19/0x1b [<c012aa57>] __lock_acquire+0x77a/0x9a3 [<c012af4a>] lock_acquire+0x60/0x80 [<c034c6c2>] __mutex_lock_slowpath+0xa7/0x20e [<c034c845>] mutex_lock+0x1c/0x1f [<c0162edc>] vfs_unlink+0x34/0x8a [<cc891d98>] nfsd_unlink+0x18f/0x1e2 [nfsd] [<cc89884f>] nfsd3_proc_remove+0x95/0xa2 [nfsd] [<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd] [<c033e84d>] svc_process+0x3a5/0x5ed [<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd] [<c0101005>] kernel_thread_helper+0x5/0xb ============================================= [ INFO: possible recursive locking detected ] --------------------------------------------- nfsd/9580 is trying to acquire lock: (&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f but task is already holding lock: (&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f other info that might help us debug this: 2 locks held by nfsd/9580: #0: (hash_sem){..--}, at: [<cc89522b>] exp_readlock+0xd/0xf [nfsd] #1: (&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f stack backtrace: [<c0103508>] show_trace_log_lvl+0x58/0x152 [<c0103b8b>] show_trace+0xd/0x10 [<c0103c2f>] dump_stack+0x19/0x1b [<c012aa63>] __lock_acquire+0x77a/0x9a3 [<c012af56>] lock_acquire+0x60/0x80 [<c034ca9a>] __mutex_lock_slowpath+0xa7/0x20e [<c034cc1d>] mutex_lock+0x1c/0x1f [<cc892ad1>] nfsd_setattr+0x2c8/0x499 [nfsd] [<cc893ede>] nfsd_create_v3+0x31b/0x4ac [nfsd] [<cc8984a1>] nfsd3_proc_create+0x128/0x138 [nfsd] [<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd] [<c033ec1d>] svc_process+0x3a5/0x5ed [<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd] [<c0101005>] kernel_thread_helper+0x5/0xb DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb Leftover inexact backtrace: [<c0103b8b>] show_trace+0xd/0x10 [<c0103c2f>] dump_stack+0x19/0x1b [<c012aa63>] __lock_acquire+0x77a/0x9a3 [<c012af56>] lock_acquire+0x60/0x80 [<c034ca9a>] __mutex_lock_slowpath+0xa7/0x20e [<c034cc1d>] mutex_lock+0x1c/0x1f [<cc892ad1>] nfsd_setattr+0x2c8/0x499 [nfsd] [<cc893ede>] nfsd_create_v3+0x31b/0x4ac [nfsd] [<cc8984a1>] nfsd3_proc_create+0x128/0x138 [nfsd] [<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd] [<c033ec1d>] svc_process+0x3a5/0x5ed [<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd] [<c0101005>] kernel_thread_helper+0x5/0xb Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Neil Brown <neilb@suse.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] knfsd: allow admin to set nthreads per nodeGreg Banks2006-10-02
| | | | | | | | | | | | | | | | | | | | | | Add /proc/fs/nfsd/pool_threads which allows the sysadmin (or a userspace daemon) to read and change the number of nfsd threads in each pool. The format is a list of space-separated integers, one per pool. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] knfsd: use svc_set_num_threads to manage threads in knfsdGreg Banks2006-10-02
| | | | | | | | | | | | | | | | | | | | Replace the existing list of all nfsd threads with new code using svc_create_pooled(). Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] knfsd: add svc_getGreg Banks2006-10-02
| | | | | | | | | | | | | | | | | | | | add svc_get() for those occasions when we need to temporarily bump up svc_serv->sv_nrthreads as a pseudo refcount. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-14 14:35:14 -0500