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* [PATCH] Update cfq io scheduler to time sliced designJens Axboe2005-06-273-0/+185
| | | | | | | | | | | | | | This updates the CFQ io scheduler to the new time sliced design (cfq v3). It provides full process fairness, while giving excellent aggregate system throughput even for many competing processes. It supports io priorities, either inherited from the cpu nice value or set directly with the ioprio_get/set syscalls. The latter closely mimic set/getpriority. This import is based on my latest from -mm. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] jffs2 build fixAndrew Morton2005-06-261-1/+1
| | | | | | | | Missed conversion in the swsusp cleanup. Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge Christoph's freeze cleanup patchLinus Torvalds2005-06-258-14/+14
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| * [PATCH] Cleanup patch for process freezingChristoph Lameter2005-06-258-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Establish a simple API for process freezing defined in linux/include/sched.h: frozen(process) Check for frozen process freezing(process) Check if a process is being frozen freeze(process) Tell a process to freeze (go to refrigerator) thaw_process(process) Restart process frozen_process(process) Process is frozen now 2. Remove all references to PF_FREEZE and PF_FROZEN from all kernel sources except sched.h 3. Fix numerous locations where try_to_freeze is manually done by a driver 4. Remove the argument that is no longer necessary from two function calls. 5. Some whitespace cleanup 6. Clear potential race in refrigerator (provides an open window of PF_FREEZE cleared before setting PF_FROZEN, recalc_sigpending does not check PF_FROZEN). This patch does not address the problem of freeze_processes() violating the rule that a task may only modify its own flags by setting PF_FREEZE. This is not clean in an SMP environment. freeze(process) is therefore not SMP safe! Signed-off-by: Christoph Lameter <christoph@lameter.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] list_for_each_entry: fs-dquot.cDomen Puncer2005-06-251-5/+2
| | | | | | | | | | | | | | | | | | | | | | Make code more readable with list_for_each_entry_safe. Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Maximilian Attems <janitor@sternwelten.at> Signed-off-by: Domen Puncer <domen@coderock.org> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fs/ncpfs/: remove unused #ifdef USE_OLD_SLOW_DIRECTORY_LISTING codeAdrian Bunk2005-06-253-56/+0
| | | | | | | | | | | | | | | | | | This patch removes some unused #ifdef USE_OLD_SLOW_DIRECTORY_LISTING code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fs/jffs/: cleanupsAdrian Bunk2005-06-254-112/+112
| | | | | | | | | | | | | | | | | | | | | | This patch contains the following cleanups: - make needlessly global functions static - provide some debugging helper functions only for appropriate values of CONFIG_JFFS_FS_VERBOSE Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] small partitions/msdos cleanupsAdrian Bunk2005-06-254-10/+2
| | | | | | | | | | | | | | | | | | | | | | | | This patch makes the following changes to the msdos partition code: - remove CONFIG_NEC98_PARTITION leftovers - make parse_bsd static This patch was already ACK'ed by Andries Brouwer. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] kdump: Parse elf32 headers and export through /proc/vmcoreVivek Goyal2005-06-251-0/+218
| | | | | | | | | | | | | | | | | | | | | | | | o Adds support for parsing core ELF32 headers. o I am expecting ELF32 support to go away down the line. This patch has been introduced for testing purposes as gdb can not parse ELF64 headers for i386. When a decent user space solution is available, ELF32 support can go away. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] kdump: Access dump file in elf format (/proc/vmcore)Vivek Goyal2005-06-254-0/+464
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | From: "Vivek Goyal" <vgoyal@in.ibm.com> o Support for /proc/vmcore interface. This interface exports elf core image either in ELF32 or ELF64 format, depending on the format in which elf headers have been stored by crashed kernel. o Added support for CONFIG_VMCORE config option. o Removed the dependency on /proc/kcore. From: "Eric W. Biederman" <ebiederm@xmission.com> This patch has been refactored to more closely match the prevailing style in the affected files. And to clearly indicate the dependency between /proc/kcore and proc/vmcore.c From: Hariprasad Nellitheertha <hari@in.ibm.com> This patch contains the code that provides an ELF format interface to the previous kernel's memory post kexec reboot. Signed off by Hariprasad Nellitheertha <hari@in.ibm.com> Signed-off-by: Eric Biederman <ebiederm@xmission.com> Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] reiserfs: do not ignore i/io error on readpageQu Fuping2005-06-251-3/+12
| | | | | | | | | | | | | | | | | | | | | | | | Reiserfs's readpage does not notice i/o errors. This patch makes reiserfs_readpage to return -EIO when i/o error appears. This patch makes reiserfs to not ignore I/O error on readpage. Signed-off-by: Qu Fuping <fs@ercist.iscas.ac.cn> Signed-off-by: Vladimir V. Saveliev <vs@namesys.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] fix fsync(dir) return value for ram-based filesystemsHugh Dickins2005-06-251-0/+1
|/ | | | | | | | | Any filesystem which is using simple_dir_operations will retunr -EINVAL for fsync() on a directory. Make it return zero instead. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/qnx4/*: fix sparse warningsAlexey Dobriyan2005-06-242-3/+3
| | | | | | | | | | This patch fixes sparse warnings in the qnx4fs (and might even make qnx4fs work on big-endian boxes) Signed-off-by: Alexey Dobriyan <adobriyan@mail.ru> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Anders Larsen <al@alarsen.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] make various thing staticAdrian Bunk2005-06-242-2/+2
| | | | | | | | Another rollup of patches which give various symbols static scope Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xip: reduce code duplicationCarsten Otte2005-06-241-6/+2
| | | | | | | | | | | | | | | This patch reworks filemap_xip.c with the goal to reduce code duplication from mm/filemap.c. It applies agains 2.6.12-rc6-mm1. Instead of implementing the aio functions, this one implements the synchronous read/write functions only. For readv and writev, the generic fallback is used. For aio, we rely on the application doing the fallback. Since our "synchronous" function does memcpy immediately anyway, there is no performance difference between using the fallbacks or implementing each operation. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xip: ext2: execute in placeCarsten Otte2005-06-249-8/+205
| | | | | | | | | These are the ext2 related parts. Ext2 now uses the xip_* file operations along with the get_xip_page aop when mounted with -o xip. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] xip: fs/mm: execute in placeCarsten Otte2005-06-241-1/+3
| | | | | | | | | | | | | | | | - generic_file* file operations do no longer have a xip/non-xip split - filemap_xip.c implements a new set of fops that require get_xip_page aop to work proper. all new fops are exported GPL-only (don't like to see whatever code use those except GPL modules) - __xip_unmap now uses page_check_address, which is no longer static in rmap.c, and defined in linux/rmap.h - mm/filemap.h is now much more clean, plainly having just Linus' inline funcs moved here from filemap.c - fix includes in filemap_xip to make it build cleanly on i386 Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] DocBook: update commentsMartin Waitz2005-06-241-2/+3
| | | | | | | | This patch updates some comments to match code changes. Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4 reboot dirname fixNeilBrown2005-06-243-3/+58
| | | | | | | | | | | | Set the recovery directory via /proc/fs/nfsd/nfs4recoverydir. It may be changed any time, but is used only on startup. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: reboot recoveryNeilBrown2005-06-242-0/+185
| | | | | | | | | | | This patch adds the code to create and remove client subdirectories from the recovery directory, as described in the previous patch comment. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: initialize recovery directoryNeilBrown2005-06-242-2/+182
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NFSv4 clients are required to know what state they have on the server so that they can reclaim it on server reboot. However, it is possible for pathalogical combinations of server reboots and network partitions to leave a client in a state where it cannot know whether it has lost its state on the server. For this reason, rfc3530 requires that we store some information about clients to stable storage. So we maintain a directory /var/lib/nfs/v4recovery with a subdirectory for each client with active state. We leave open the possibility of including files underneath each such subdirectory with information about the client, but for now the subdirectories are empty. We create a client subdirectory whenever a client makes its first non-reclaim open_confirm. We remove a client subdirectory whenever either a) its lease expires, or b) the grace period ends without it reclaiming anything. When handling reclaims, we allow the reclaim if and only if the client doing the reclaim has a subdirectory. This patch adds just the code to scan the recovery directory on nfsd startup. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: remove cb_parsedNeilBrown2005-06-242-7/+2
| | | | | | | | | | | | The cb_parsed field is only used by probe_callback, to determine whether the callback information has been filled in by setclientid. But there is no way that probe_callback() can be called without that having already happened, so that check is superfluous, as is cb_parsed. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: allow multiple lockownersNeilBrown2005-06-241-43/+33
| | | | | | | | | | | | | | | | | | >From the language of rfc3530 section 8.1.3 (e.g., the suggestion that a "process id" might be a reasonable lockowner value) it's conceivable that a client might want to use the same lockowner string on multiple files, so we may as well allow that. We expect each use of open_to_lockowner to create a distinct seqid stream, though. For now we're also allowing multiple uses of open_to_lockowner with the same open, though it seems unlikely clients would actually do that. Also add a comment reminding myself of some very non-scalable data structures. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: rename state list fieldsNeilBrown2005-06-241-39/+39
| | | | | | | | | | | | | | | | | | | Trivial renaming patch: I can never remember, while looking at various lists relating the nfsd4 state structures, which are the "heads" and which are items on other lists, or which structures are actually on the various lists. The following convention helps me: given structures foo and bar, with foo containing the head of a list of bars, use "bars" for the name of the head of the list contained in the struct foo, and use "per_foo" for the entries in the struct bars. Already done for struct nfs4_file; go ahead and do it for the other nfsd4 state structures. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: miscellaneous setclientid_confirm cleanupNeilBrown2005-06-241-32/+17
| | | | | | | | | Minor cleanup, remove some unnecessary printk's. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: setclientid_confirm commentsNeilBrown2005-06-241-30/+29
| | | | | | | | | Trivial whitespace and comment fixes. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: setclientid_confirm gotoectomyNeilBrown2005-06-241-10/+7
| | | | | | | | | | Change from "goto" to "else if" format in setclientid_confirm. From: Fred Isaman Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: fix setclientid_confirm error returnNeilBrown2005-06-241-8/+3
| | | | | | | | | | | NFS4_INVAL is not a valid error for setclientid_confirm, and INUSE is the more logical error here anyway. From: Fred Isaman Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: fix setclientid_confirm casesNeilBrown2005-06-241-4/+15
| | | | | | | | | | | | | | Setclientid_confirm code confused states 1 and 3 (numbering from the IMPLEMENTATION section of rfc3530, section 14.2.33). Fix this. State 1 allows the client to change the callback channel on the fly. We don't implement this currently, so just turn off the callback channel in this case. From: Fred Isaman Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: fix uncomfirmed listNeilBrown2005-06-241-4/+7
| | | | | | | | | | | Setclientid code assumes there is only one match in unconfirmed list. Make sure that assumption holds. From: Fred Isaman Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: make needlessly global code staticNeilBrown2005-06-245-41/+43
| | | | | | | | | | | | This patch contains the following possible cleanups: - make needlessly global code static Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: grace period endNeilBrown2005-06-241-11/+13
| | | | | | | | | | | | | | | | | For the purposes of reboot recovery, we want to do some work during the transition period at the end of the grace period. Some of that work must be guaranteed to have a certain relationship with the end of the grace period, so we want to control the transition there. Our approach is to modify the in_grace() checks to consult a global variable instead of checking the time directly, to schedule the first run of the laundromat thread at the end of the grace period, and to set the global end-of-grace-period there. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: add find_{un}conf_by_str functions to simplify setclientidNeilBrown2005-06-241-18/+31
| | | | | | | | | Minor setclientid cleanup Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: reboot hashNeilBrown2005-06-244-43/+138
| | | | | | | | | | | | | | | | For the purposes of reboot recovery we keep a directory with subdirectories each having a name that is the ascii hex representation of the md5 sum of a client identifier for an active client. This adds the code to calculate that name. We also use it for the purposes of comparing clients, so if someone ever manages to find two client names that are md5 collisions, then we'll return clid_inuse to the second. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: setclientid simplificationNeilBrown2005-06-241-12/+2
| | | | | | | | | We can be a little more concise here. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: idmap initializationNeilBrown2005-06-241-4/+0
| | | | | | | | | | Adopt standard kernel style by defining a no-op function instead of putting ifdef's in the code where the function is called. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: remove nfs4_reclaim_initNeilBrown2005-06-241-3/+0
| | | | | | | | | nfs4_reclaim_init is no longer performing any useful function. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: clean up state initializationNeilBrown2005-06-242-18/+18
| | | | | | | | | | Separate out stuff that needs initialization on startup from stuff that only needs initialization on module init from static data. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: rename nfs4_state_initNeilBrown2005-06-242-4/+4
| | | | | | | | | Somewhat gratuitous rename to simplify following patch. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: delegation recoveryNeilBrown2005-06-242-9/+29
| | | | | | | | | Allow recovery of delegations after reboot. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: simplify lease changingNeilBrown2005-06-241-51/+12
| | | | | | | | | | | | | | | | | | | | | The only way the protocol gives to change the lease time on the fly is to simulate a reboot. We don't have that completely right in the current code; among other things, we should probably put lockd in grace too while we do this. For now, let's just keep this simple, and wait till the next time nfsd starts to register any changes in lease time. If the administrator really wants to change the lease time *now*, they can go ahead and bring nfsd down and then back up again after changing the lease time. Also remove the "if (reclaim_str_hashtbl_size == 0)" case, a shortcut which skips the grace period if we know of no clients in need of recovery. This isn't going to work well with nlm. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: create separate laundromat workqueueNeilBrown2005-06-241-3/+6
| | | | | | | | | | | | We're running the laundromat work on the default kevent worker thread. But the laundromat takes the nfsv4 state semaphore, which is used for way too much stuff, and the potential for deadlocks is high. Better to have this on a separate workqueue. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: nfs4_check_open_reclaim cleanupNeilBrown2005-06-241-5/+1
| | | | | | | | | Minor cleanup. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfsd4: fix probe_callbackNeilBrown2005-06-241-1/+1
| | | | | | | | | | | | | | | rpc_create_client was modified recently to do its own (synchronous) NULL ping of the server. We'd rather do that on our own, asynchronously, so that we don't have to block the nfsd thread doing the probe, and so that setclientid handling (hence, client mounts) can proceed normally whether the callback is succesful or not. (We can still function fine without the callback channel--we just won't be able to give out delegations till it's verified to work.) Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: nfs4: hold filp while reading or writingNeilBrown2005-06-241-3/+12
| | | | | | | | | | | We're trying to read and write from a struct file that we may not hold a reference to any more (since a close could be processed as soon as we drop the state lock). Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] knfsd: lockd: flush signals on shutdownNeilBrown2005-06-241-1/+3
| | | | | | | | | Silence another annoying "failed to contact portmap (errno -512)" on shutdown. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfsd4: reference count struct nfs4_fileNeilBrown2005-06-241-49/+51
| | | | | | | | | | | | | | Add a struct kref to each nfs4_file and take a reference to it from each stateid and delegation that refers to it. The atomicity guarantees are overkill given that all this stuff is done under the single nfsd4 state lock, but a) we'd like finer-grained locking some day, and b) this simplifies the cleanup of the structures a bit, something that has previously been a bit complicated and bug-prone. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfsd4: rename nfs4_file fieldsNeilBrown2005-06-241-11/+11
| | | | | | | | | | | | | | | | | | Trivial renaming patch: I can never remember, while looking at various lists relating the nfsd4 state structures, which are the "heads" and which are items on other lists, or which structures are actually on the various lists. The following convention helps me: given structures foo and bar, with foo containing the head of a list of bars, use "bars" for the name of the head of the list contained in the struct foo, and use "per_foo" for the entries in the struct bars. Go ahead and do this for struct nfs4_file. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfsd4: remove debugging countersNeilBrown2005-06-241-24/+1
| | | | | | | | | These remaining debugging counters haven't proved that useful. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] nfsd4: slabify delegationsNeilBrown2005-06-241-10/+9
| | | | | | | | | Allocate delegations from a slab cache. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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