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2006-10-10[PATCH] ufs endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] fs/partitions endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] isofs endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] hpfs endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] fs/fat endianness annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] befs: endianness annotationsAl Viro
split the data structures that exist in host- and disk-endian variants, annotate the fields of disk-endian ones, propagate changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] befs: missing fs32_to_cpu() in debug.cAl Viro
inode->mode is disk-endian Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] befs: introduce on-disk endian typesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] befs: prepare to sanitizing headersAl Viro
pulled includes of endian.h from fs/befs/*.c to befs.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] befs: remove bogus typedefAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] fs/inode.c NULL noise removalAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] more fs/compat.c __user annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[PATCH] mm: bug in set_page_dirty_buffersNick Piggin
This was triggered, but not the fault of, the dirty page accounting patches. Suitable for -stable as well, after it goes upstream. Unable to handle kernel NULL pointer dereference at virtual address 0000004c EIP is at _spin_lock+0x12/0x66 Call Trace: [<401766e7>] __set_page_dirty_buffers+0x15/0xc0 [<401401e7>] set_page_dirty+0x2c/0x51 [<40140db2>] set_page_dirty_balance+0xb/0x3b [<40145d29>] __do_fault+0x1d8/0x279 [<40147059>] __handle_mm_fault+0x125/0x951 [<401133f1>] do_page_fault+0x440/0x59f [<4034d0c1>] error_code+0x39/0x40 [<08048a33>] 0x8048a33 Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09[PATCH] Introduce vfs_listxattrBill Nottingham
This patch moves code out of fs/xattr.c:listxattr into a new function - vfs_listxattr. The code for vfs_listxattr was originally submitted by Bill Nottingham <notting@redhat.com> to Unionfs. Sorry about that. The reason for this submission is to make the listxattr code in fs/xattr.c a little cleaner (as well as to clean up some code in Unionfs.) Currently, Unionfs has vfs_listxattr defined in its code. I think that's very ugly, and I'd like to see it (re)moved. The logical place to put it, is along side of all the other vfs_*xattr functions. Overall, I think this patch is benefitial for both kernel.org kernel and Unionfs. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09[PATCH] hppfs: readdir callback missed in prototype changeAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09[PATCH] dlm gfp_t annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09[PATCH] wrong order of arguments in copy_to_user() in ncpfsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-09Fix extraneous '&' in recent NFS client cleanupLinus Torvalds
We should pass "wait_event_interruptible()" the wait-queue itself, not the pointer to it. The magic macro will pointerize it internally. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08[PATCH] NFS: Fix typo in nfs_get_client()Trond Myklebust
Commit ca4aa09635516258f158a7bc1594a794e4c34864 fixed waiting for the structure to get initialised, but it is also possible to break out of the loop while still in TASK_INTERRUPTIBLE. Replace the whole thing by wait_event_interruptible, which is much more readable, and doesn't suffer from these problems. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-08[PATCH] NFS: Fix typo in nfs_get_client()Trond Myklebust
NFS_CS_INITING > NFS_CS_READY, so instead of waiting for the structure to get initialised, we currently immediately jump out of the loop without ever sleeping. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-07[PATCH] reiserfs: null pointer dereferencing in reiserfs_read_bitmap_blockEric Eric Sesterhenn
null pointer dereferencing in reiserfs_read_bitmap_block. Signed-off-by: Alexander Zarochentsev <zam@namesys.com> Cc: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-06[PATCH] knfsd: tidy up up meaning of 'buffer size' in nfsd/sunrpcNeilBrown
There is some confusion about the meaning of 'bufsz' for a sunrpc server. In some cases it is the largest message that can be sent or received. In other cases it is the largest 'payload' that can be included in a NFS message. In either case, it is not possible for both the request and the reply to be this large. One of the request or reply may only be one page long, which fits nicely with NFS. So we remove 'bufsz' and replace it with two numbers: 'max_payload' and 'max_mesg'. Max_payload is the size that the server requests. It is used by the server to check the max size allowed on a particular connection: depending on the protocol a lower limit might be used. max_mesg is the largest single message that can be sent or received. It is calculated as the max_payload, rounded up to a multiple of PAGE_SIZE, and with PAGE_SIZE added to overhead. Only one of the request and reply may be this size. The other must be at most one page. Cc: Greg Banks <gnb@sgi.com> 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>
2006-10-05Merge git://git.infradead.org/~dhowells/irq-2.6Linus Torvalds
* git://git.infradead.org/~dhowells/irq-2.6: IRQ: Maintain regs pointer globally rather than passing to IRQ handlers IRQ: Typedef the IRQ handler function type IRQ: Typedef the IRQ flow handler function type
2006-10-05[PATCH] UDF: Fix mounting read-writePeter Osterlund
The UDF filesystem can't be mounted in read-write mode any more, because of forgotten braces. Signed-off-by: Peter Osterlund <petero2@telia.com> [ Duh! ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-04Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/confighLinus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/davej/configh: Remove all inclusions of <linux/config.h> Manually resolved trivial path conflicts due to removed files in the sound/oss/ subdirectory.
2006-10-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6: (292 commits) [GFS2] Fix endian bug for de_type [GFS2] Initialize SELinux extended attributes at inode creation time. [GFS2] Move logging code into log.c (mostly) [GFS2] Mark nlink cleared so VFS sees it happen [GFS2] Two redundant casts removed [GFS2] Remove uneeded endian conversion [GFS2] Remove duplicate sb reading code [GFS2] Mark metadata reads for blktrace [GFS2] Remove iflags.h, use FS_ [GFS2] Fix code style/indent in ops_file.c [GFS2] streamline-generic_file_-interfaces-and-filemap gfs fix [GFS2] Remove readv/writev methods and use aio_read/aio_write instead (gfs bits) [GFS2] inode-diet: Eliminate i_blksize from the inode structure [GFS2] inode_diet: Replace inode.u.generic_ip with inode.i_private (gfs) [GFS2] Fix typo in last patch [GFS2] Fix direct i/o logic in filemap.c [GFS2] Fix bug in Makefiles for lock modules [GFS2] Remove (extra) fs_subsys declaration [GFS2/DLM] Fix trailing whitespace [GFS2] Tidy up meta_io code ...
2006-10-04Merge master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6: (41 commits) [PARISC] Kill wall_jiffies use [PARISC] Honour "panic_on_oops" sysctl [PARISC] Fix fs/binfmt_som.c [PARISC] Export clear_user_page to modules [PARISC] Make DMA routines more stubby [PARISC] Define pci_get_legacy_ide_irq [PARISC] Fix CONFIG_DEBUG_SPINLOCK [PARISC] Fix HPUX compat compile with current GCC [PARISC] Fix iounmap compile warning [PARISC] Add support for Quicksilver AGPGART [PARISC] Move LBA and SBA register defines to the common ropes.h [PARISC] Create shared <asm/ropes.h> header [PARISC] Stash the lba_device in its struct device drvdata [PARISC] Generalize IS_ASTRO et al to take a parisc_device like [PARISC] Pretty print the name of the lba type on kernel boot [PARISC] Remove some obsolete comments and I checked that Reo is similar to Ike [PARISC] Add hardware found in the rp8400 [PARISC] Allow nested interrupts [PARISC] Further updates to timer_interrupt() [PARISC] remove halftick and copy clocktick to local var (gcc can optimize usage) ...
2006-10-04[PATCH] ecryptfs: fs/Makefile and fs/KconfigMichael Halcrow
eCryptfs is a stacked cryptographic filesystem for Linux. It is derived from Erez Zadok's Cryptfs, implemented through the FiST framework for generating stacked filesystems. eCryptfs extends Cryptfs to provide advanced key management and policy features. eCryptfs stores cryptographic metadata in the header of each file written, so that encrypted files can be copied between hosts; the file will be decryptable with the proper key, and there is no need to keep track of any additional information aside from what is already in the encrypted file itself. [akpm@osdl.org: updates for ongoing API changes] [bunk@stusta.de: cleanups] [akpm@osdl.org: alpha build fix] [akpm@osdl.org: cleanups] [tytso@mit.edu: inode-diet updates] [pbadari@us.ibm.com: generic_file_*_read/write() interface updates] [rdunlap@xenotime.net: printk format fixes] [akpm@osdl.org: make slab creation and teardown table-driven] Signed-off-by: Phillip Hellewell <phillip@hellewell.homeip.net> Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: actually use all the pieces to implement referralsJ.Bruce Fields
Use all the pieces set up so far to implement referral support, allowing return of NFS4ERR_MOVED and fs_locations attribute. Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: xdr encoding for fs_locationsJ.Bruce Fields
Encode fs_locations attribute. Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: fslocations data structuresManoj Naik
Define FS locations structures, some functions to manipulate them, and add code to parse FS locations in downcall and add to the exports structure. [bfields@fieldses.org: bunch of fixes and cleanups] Signed-off-by: Manoj Naik <manoj@almaden.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd: store export path in exportJ.Bruce Fields
Store the export path in the svc_export structure instead of storing only the dentry. This will prevent the need for additional d_path calls to provide NFSv4 fs_locations support. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: close a race-opportunity in d_splice_aliasNeilBrown
There is a possible race in d_splice_alias. Though __d_find_alias(inode, 1) will only return a dentry with DCACHE_DISCONNECTED set, it is possible for it to get cleared before the BUG_ON, and it is is not possible to lock against that. There are a couple of problems here. Firstly, the code doesn't match the comment. The comment describes a 'disconnected' dentry as being IS_ROOT as well as DCACHE_DISCONNECTED, however there is not testing of IS_ROOT anythere. A dentry is marked DCACHE_DISCONNECTED when allocated with d_alloc_anon, and remains DCACHE_DISCONNECTED while a path is built up towards the root. So a dentry can have a valid name and a valid parent and even grandparent, but will still be DCACHE_DISCONNECTED until a path to the root is created. Once the path to the root is complete, everything in the path gets DCACHE_DISCONNECTED cleared. So the fact that DCACHE_DISCONNECTED isn't enough to say that a dentry is free to be spliced in with a given name. This can only be allowed if the dentry does not yet have a name, so the IS_ROOT test is needed too. However even adding that test to __d_find_alias isn't enough. As d_splice_alias drops dcache_lock before calling d_move to perform the splice, it could race with another thread calling d_splice_alias to splice the inode in with a different name in a different part of the tree (in the case where a file has hard links). So that splicing code is only really safe for directories (as we know that directories only have one link). For directories, the caller of d_splice_alias will be holding i_mutex on the (unique) parent so there is no room for a race. A consequence of this is that a non-directory will never benefit from being spliced into a pre-exisiting dentry, but that isn't a problem. It is perfectly OK for a non-directory to have multiple dentries, some anonymous, some not. And the comment for d_splice_alias says that it only happens for directories anyway. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: fix auto-sizing of nfsd request/reply buffersNeilBrown
totalram is measured in pages, not bytes, so PAGE_SHIFT must be used when trying to find 1/4096 of RAM. 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>
2006-10-04[PATCH] knfsd: lockd: fix refount on nsmNeilBrown
If nlm_lookup_host finds what it is looking for it exits with an extra reference on the matching 'nsm' structure. So don't actually count the reference until we are (fairly) sure it is going to be used. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: acls: fix handling of zero-length aclsJ.Bruce Fields
It is legal to have zero-length NFSv4 acls; they just deny everything. Also, nfs4_acl_nfsv4_to_posix will always return with pacl and dpacl set on success, so the caller doesn't need to check this. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: acls: simplify nfs4_acl_nfsv4_to_posix interfaceJ.Bruce Fields
There's no need to handle the case where the caller passes in null for pacl or dpacl; no caller does that, because it would be a dumb thing to do. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: acls: fix inheritanceJ.Bruce Fields
We can be a little more flexible about the flags allowed for inheritance (in particular, we can deal with either the presence or the absence of INHERIT_ONLY), but we should probably reject other combinations that we don't understand. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: acls: relax the nfsv4->posix mappingJ.Bruce Fields
Use a different nfsv4->(draft posix) acl mapping which is 1. completely backwards compatible, 2. accepts any nfsv4 acl, and 3. errs on the side of restricting permissions. In detail: 1. completely backwards compatible: The new mapping produces the same result on any acl produced by the existing (draft posix)->nfsv4 mapping; the one exception is that we no longer attempt to guess the value of the mask by assuming certain denies represent the mask. Since the server still keeps track of the mask locally, sequences of chmod's will still be handled fine; the only thing this will change is sequences of chmod's with intervening read-modify-writes of the acl. That last case just isn't worth the trouble and the possible misrepresentations of the user's intent (if we guess that a certain deny indicates masking is in effect when it really isn't). 2. accepts any nfsv4 acl: That's not quite true: we still reject acls that use combinations of inheritance flags that we don't support. We also reject acls that attempt to explicitly deny read_acl or read_attributes permissions, or that attempt to deny write_acl or write_attributes permissions to the owner of the file. 3. errs on the side of restricting permissions: one exception to this last rule: we totally ignore some bits (write_owner, synchronize, read_named_attributes, etc.) that are completely alien to our filesystem semantics, in some cases even if that would mean ignoring an explicit deny that we have no intention of enforcing. Excepting that, the posix acl produced should be the most permissive acl that is not more permissive than the given nfsv4 acl. And the new code's shorter, too. Neato. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: clean up exp_pseudorootJ.Bruce Fields
The previous patch enables some minor simplification here. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] knfsd: nfsd4: refactor exp_pseudorootJ.Bruce Fields
We could be using more common code in exp_pseudoroot(). This will also simplify some changes we need to make later. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04[PATCH] Convert lockd to use the newer mutex instead of the older semaphoreNeil Brown
Both the (recently introduces) nsm_sema and the older f_sema are converted over. Cc: 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>
2006-10-04[PATCH] knfsd: register all RPC programs with portmapper by defaultOlaf Kirch
The NFSACL patches introduced support for multiple RPC services listening on the same transport. However, only the first of these services was registered with portmapper. This was perfectly fine for nfsacl, as you traditionally do not want these to show up in a portmapper listing. The patch below changes the default behavior to always register all services listening on a given transport, but retains the old behavior for nfsacl services. 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>
2006-10-04[PATCH] knfsd: lockd: fix use of h_nextrebindOlaf Kirch
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: 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>
2006-10-04[PATCH] knfsd: export nsm_local_state to user space via sysctlOlaf Kirch
Every NLM call includes the client's NSM state. Currently, the Linux client always reports 0 - which seems not to cause any problems, but is not what the protocol says. This patch exposes the kernel's internal variable to user space via a sysctl, which can be set at system boot time by statd. 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>
2006-10-04[PATCH] knfsd: match GRANTED_RES replies using cookiesOlaf Kirch
When we send a GRANTED_MSG call, we current copy the NLM cookie provided in the original LOCK call - because in 1996, some broken clients seemed to rely on this bug. However, this means the cookies are not unique, so that when the client's GRANTED_RES message comes back, we cannot simply match it based on the cookie, but have to use the client's IP address in addition. Which breaks when you have a multi-homed NFS client. The X/Open spec explicitly mentions that clients should not expect the same cookie; so one may hope that any clients that were broken in 1996 have either been fixed or rendered obsolete. 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>
2006-10-04[PATCH] knfsd: make nlmclnt_next_cookie SMP safeOlaf Kirch
The way we incremented the NLM cookie in nlmclnt_next_cookie was not thread safe. This patch changes the counter to an atomic_t 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>
2006-10-04[PATCH] knfsd: lockd: optionally use hostnames for identifying peersOlaf Kirch
This patch adds the nsm_use_hostnames sysctl and module param. If set, lockd will use the client's name (as given in the NLM arguments) to find the NSM handle. This makes recovery work when the NFS peer is multi-homed, and the reboot notification arrives from a different IP than the original lock calls. 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>
2006-10-04[PATCH] knfsd: simplify nlmsvc_invalidate_allNeilBrown
As a result of previous patches, the loop in nlmsvc_invalidate_all just sets h_expires for all client/hosts to 0 (though does it in a very complicated way). This was possibly meant to trigger early garbage collection but half the time '0' is in the future and so it infact delays garbage collection. Pre-aging the 'hosts' is not really needed at this point anyway so we throw out the loop and nlm_find_client which is no longer needed. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>