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* Char: moxa, eliminate busy waitingJiri Slaby2007-07-171-25/+12
| | | | | | | | blah, moxa delays 250+ ms in busy waiting, use msleep instead. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Char: isicom, proper variables typesJiri Slaby2007-07-171-11/+7
| | | | | | | | irq is int, base is unsigned long Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Char: isicom, del_timer at exitJiri Slaby2007-07-171-11/+1
| | | | | | Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Char: isicom, cleanup lockingJiri Slaby2007-07-171-38/+27
| | | | | | | | | | Don't spin processor when not needed (use sleep instead of delay). Don't release the lock when needed in next iteration -- this actually fixes a bug -- missing braces Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Char: cyclades, fix sparse warningJiri Slaby2007-07-171-10/+8
| | | | | | | | cyclades, fix sparse warning Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Char: cyclades, add firmware loadingJiri Slaby2007-07-171-23/+328
| | | | | | | | cyclades, add firmware loading Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* remove options depending on OSS_OBSOLETEAdrian Bunk2007-07-171-77/+0
| | | | | | | | | This patch contains the scheduled removal of options depending on OSS_OBSOLETE. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* OSS trident: replace deprecated pci_find_device with pci_get_deviceMuli Ben-Yehuda2007-07-171-3/+5
| | | | | | Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* OSS trident: fix locking around write_voice_regsMuli Ben-Yehuda2007-07-171-0/+5
| | | | | | | | | | | | | | | | | | trident_write_voice_regs() was getting called with the card spinlock held in only some cases. Fix it. Explanation: we allocate a new virtual channel in open, and then we frob some hardware registers (in write_voice_regs) for that channel. But the hardware registers are shared with other channels, which may be trying to frob the some registers (albeit for another channel) via ioctl(SNDCTL_DSP_SPEED). Fixed bugzilla.kernel.org bug #8172 (http://bugme.osdl.org/show_bug.cgi?id=8172) Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Cc: <tammy000@gmail.com> Cc: <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* OSS trident: massive whitespace removalMuli Ben-Yehuda2007-07-171-179/+179
| | | | | | Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* csb337 supports "new style" rtc-ds1307David Brownell2007-07-171-0/+10
| | | | | | | | | | | | Update csb337 board specific init to support "new style" rtc-ds1307 code. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Andrew Victor <andrew@sanpeople.com> Cc: Bill Gatliff <bgat@billgatliff.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1307 becomes new-style i2c driverDavid Brownell2007-07-171-75/+53
| | | | | | | | | | | | | | | | | | Convert the rtc-ds1307 driver into a "new style" driver. Also improve probe() checks: be more correct about switching out of AM/PM mode, and issue a (debug) diagnostic when failing due to bogus register values. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Andrew Victor <andrew@sanpeople.com> Cc: Bill Gatliff <bgat@billgatliff.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@gate.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1307: oscillator restart for ds13{37,38,39,40}Rodolfo Giometti2007-07-171-21/+45
| | | | | | | | | | | | | | | | When we find a ds1337 or ds1339 with the oscillator powered off, turn it on. If the oscillator fault flag was set, clear it and warn that the clock needs to be set. David Brownell: Bugfixes; provide corresponding update for ds1338, and the core of the fix for ds1340. Use a common warning message ("SET TIME!") whenever the clock needs to be set after oscillator fault (or oscillator enable, if fault is not a separate status). Signed-off-by: Rodolfo Giometti <giometti@linux.it> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* RTC driver for DS1216 chipsThomas Bogendoerfer2007-07-173-0/+233
| | | | | | | | | | | RTC driver for Dallas/Maxim DS126 chips used in SNI RM200/RM400 [akpm@linux-foundation.org: cleanups] Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: add support for the ST M48T59 RTCMark Zhan2007-07-174-0/+559
| | | | | | | | | [akpm@linux-foundation.org: x86_64 build fix] [akpm@linux-foundation.org: The acpi guys changed the bin_attribute code] Signed-off-by: Mark Zhan <rongkai.zhan@windriver.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: watchdog support for rtc-m41t80 driverAtsushi Nemoto2007-07-172-0/+295
| | | | | | | | | | | | Add a watchdog driver interface to rtc-m41t80 driver. This is derived from works by Alexander Bigga <ab@mycable.de> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Alexander Bigga <ab@mycable.de> Cc: David Brownell <david-b@pacbell.net> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: add rtc-m41t80 driverAtsushi Nemoto2007-07-173-0/+642
| | | | | | | | | | | | | | | | | | | | This is a new-style i2c driver for ST M41T80 series RTC chip, derived from works by Alexander Bigga <ab@mycable.de> who wrote the original rtc-m41txx.c based on drivers/i2c/chips/m41t00.c driver. This driver supports M41T8[0-4] and M41ST8[457]. The old m41t00 driver supports M41T00, M41T81 and M41T85(M41ST85). While the M41T00 chip is now supported by rtc-ds1307 driver, this driver does not include support for the chip. [akpm@linux-foundation.org: remove bogus `static'] Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Alexander Bigga <ab@mycable.de> Acked-by: Mark A. Greer <mgreer@mvista.com> Cc: David Brownell <david-b@pacbell.net> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* RTC Kconfig tweaxDavid Brownell2007-07-171-4/+4
| | | | | | | | | | | Minor fix to the Kconfig for RTCs: don't display section headers for I2C or SPI unless they're configured. And depend on SPI_MASTER; having slave support wouldn't help. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* RTC_CLASS is no longer considered EXPERIMENTALAlessandro Zummo2007-07-171-1/+0
| | | | | | | | RTC class is mature enough. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Driver for the Atmel on-chip RTC on AT32AP700x devicesHans-Christian Egtvedt2007-07-173-0/+325
| | | | | | | | | | | | | | | | | | | | | | | | | | | Tested on the AT32AP7000/ATSTK1000. Driver does only suport time, wake up and a very simple alarm, because of hardware limitations. Hardware documentation can be found in the AT32AP7000 data sheet, which can be downloaded from http://www.atmel.com/dyn/products/datasheets.asp?family_id=682 From: David Brownell <david-b@pacbell.net> - Strike some alarm setup code that's no longer needed. (This patch seems to have gotten lost somewhere...) - Make the driver name (and its module alias) match what the platform setup code uses, so the driver can bind and hotplug. [akpm@linux-foundation.org: fix several checkpatch.pl warnings] Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-dev: return -ENOTTY in ioctl if irq_set_freq is not implemented by driverHans-Christian Egtvedt2007-07-171-0/+2
| | | | | | | | | Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc: make example code jump to done instead of return when ioctl not supportedHans-Christian Egtvedt2007-07-171-1/+1
| | | | | | | | | Signed-off-by: Hans-Christian Egtvedt <hcegtvedt@atmel.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Thecus N2100: register rtc-rs5c372 i2c deviceMartin Michlmayr2007-07-171-0/+10
| | | | | | | | | | | | | Use the new i2c framework to load rtc-rs5c372 for the Thecus N2100. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Tested-by: Voipio Riku <Riku.Voipio@movial.fi> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-rs5c372 becomes a new-style i2c driverDavid Brownell2007-07-172-63/+36
| | | | | | | | | | | | | | | | | | | | | | | | Convert rtc-rs5c372 to be a "new style" I2C driver, and update the Kconfig text to be more complete.. Verified on an OMAP H4 development platform, along with a board init patch to declare its rv5c387a device. Only one defconfig -- powerpc/linkstation -- uses this driver; but several other platforms use it, just without defconfig support. Such platforms need to be converted so (a) their I2C adapter driver supports new-style drivers, and (b) board init code declares this I2C device. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Voipio Riku <Riku.Voipio@movial.fi> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Martin Michlmayr <tbm@cyrius.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* rtc-ds1307 cleanupsDavid Brownell2007-07-171-52/+124
| | | | | | | | | | | | | | | | | | | | | This updates the rtc-ds1307 driver so that converting it to a "new style" driver (driver model, not legacy i2c model) will involve fewer changes. - Use pointer to i2c_client almost everywhere, so that it's easy to let the i2c core create that object; - Avoid using i2c_client.adapter, since that field is redundant and thus may go away (same object as i2c_client.dev.parent). - Extend type enum to include various RTCs this is expected to work with, and include register support for them. It also cleans up the support for multiple chip types, and fixes a glitch that could appear with an un-initialized RTC. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* eCryptfs: Move ecryptfs docs into Documentation/filesystems/Josef 'Jeff' Sipek2007-07-171-0/+0
| | | | | | | Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Couple fixes to fs/ecryptfs/inode.cMika Kukkonen2007-07-171-2/+2
| | | | | | | | | | | | | | | | | | | Following was uncovered by compiling the kernel with '-W' flag: CC [M] fs/ecryptfs/inode.o fs/ecryptfs/inode.c: In function ‘ecryptfs_lookup’: fs/ecryptfs/inode.c:304: warning: comparison of unsigned expression < 0 is always false fs/ecryptfs/inode.c: In function ‘ecryptfs_symlink’: fs/ecryptfs/inode.c:486: warning: comparison of unsigned expression < 0 is always false Function ecryptfs_encode_filename() can return -ENOMEM, so change the variables to plain int, as in the first case the only real use actually expects int, and in latter case there is no use beoynd the error check. Signed-off-by: Mika Kukkonen <mikukkon@iki.fi> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: enforce per-flavor id squashingJ. Bruce Fields2007-07-172-3/+18
| | | | | | | | | | Allow root squashing to vary per-pseudoflavor, so that you can (for example) allow root access only when sufficiently strong security is in use. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: allow auth_sys nlm on rpcsec_gss exportsJ. Bruce Fields2007-07-171-4/+10
| | | | | | | | | | | | | Our clients (like other clients, as far as I know) use only auth_sys for nlm, even when using rpcsec_gss for the main nfs operations. Administrators that want to deny non-kerberos-authenticated locking requests will need to turn off NFS protocol versions less than 4.... Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: secinfo handling without secinfo= optionJ. Bruce Fields2007-07-173-3/+37
| | | | | | | | | | | | | We could return some sort of error in the case where someone asks for secinfo on an export without the secinfo= option set--that'd be no worse than what we've been doing. But it's not really correct. So, hack up an approximate secinfo response in that case--it may not be complete, but it'll tell the client at least one acceptable security flavor. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: implement secinfoAndy Adamson2007-07-174-0/+113
| | | | | | | | | | | | | Implement the secinfo operation. (Thanks to Usha Ketineni wrote an earlier version of this support.) Cc: Usha Ketineni <uketinen@us.ibm.com> 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@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: rpc: add gss krb5 and spkm3 oid valuesUsha Ketineni2007-07-172-0/+2
| | | | | | | | | | | | Adds oid values to the gss_api mechanism structures. On the NFSV4 server side, these are required as part of the security triple (oid,qop,service) information being sent in the response of the SECINFO operation. Signed-off-by: Usha Ketineni <uketinen@us.ibm.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: display export secinfo informationJ. Bruce Fields2007-07-171-0/+29
| | | | | | | | | Add secinfo information to the display in proc/net/sunrpc/nfsd.export/content. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: factor out code from show_expflagsJ. Bruce Fields2007-07-171-8/+15
| | | | | | | | | | | Factor out some code to be shared by secinfo display code. Remove some unnecessary conditional printing of commas where we know the condition is true. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: make readonly access depend on pseudoflavorJ. Bruce Fields2007-07-175-10/+24
| | | | | | | | | | | | Allow readonly access to vary depending on the pseudoflavor, using the flag passed with each pseudoflavor in the export downcall. The rest of the flags are ignored for now, though some day we might also allow id squashing to vary based on the flavor. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: return nfserr_wrongsecAndy Adamson2007-07-176-0/+48
| | | | | | | | | | | | Make the first actual use of the secinfo information by using it to return nfserr_wrongsec when an export is found that doesn't allow the flavor used on this request. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: factor nfsd_lookup into 2 piecesJ. Bruce Fields2007-07-171-19/+36
| | | | | | | | | | | | | Factor nfsd_lookup into nfsd_lookup_dentry, which finds the right dentry and export, and a second part which composes the filehandle (and which will later check the security flavor on the new export). No change in behavior. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: use ip-address-based domain in secinfo caseJ. Bruce Fields2007-07-171-9/+67
| | | | | | | | | | | | | | | | | With this patch, we fall back on using the gss/pseudoflavor only if we fail to find a matching auth_unix export that has a secinfo list. As long as sec= options aren't used, there's still no change in behavior here (except possibly for some additional auth_unix cache lookups, whose results will be ignored). The sec= option, however, is not actually enforced yet; later patches will add the necessary checks. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: set rq_client to ip-address-determined-domainJ. Bruce Fields2007-07-177-12/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We want it to be possible for users to restrict exports both by IP address and by pseudoflavor. The pseudoflavor information has previously been passed using special auth_domains stored in the rq_client field. After the preceding patch that stored the pseudoflavor in rq_pflavor, that's now superfluous; so now we use rq_client for the ip information, as auth_null and auth_unix do. However, we keep around the special auth_domain in the rq_gssclient field for backwards compatibility purposes, so we can still do upcalls using the old "gss/pseudoflavor" auth_domain if upcalls using the unix domain to give us an appropriate export. This allows us to continue supporting old mountd. In fact, for this first patch, we always use the "gss/pseudoflavor" auth_domain (and only it) if it is available; thus rq_client is ignored in the auth_gss case, and this patch on its own makes no change in behavior; that will be left to later patches. Note on idmap: I'm almost tempted to just replace the auth_domain in the idmap upcall by a dummy value--no version of idmapd has ever used it, and it's unlikely anyone really wants to perform idmapping differently depending on the where the client is (they may want to perform *credential* mapping differently, but that's a different matter--the idmapper just handles id's used in getattr and setattr). But I'm updating the idmapd code anyway, just out of general backwards-compatibility paranoia. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: provide export lookup wrappers which take a svc_rqstJ. Bruce Fields2007-07-174-7/+38
| | | | | | | | | | | | | | | | | Split the callers of exp_get_by_name(), exp_find(), and exp_parent() into those that are processing requests and those that are doing other stuff (like looking up filehandles for mountd). No change in behavior, just a (fairly pointless, on its own) cleanup. (Note this has the effect of making nfsd_cross_mnt() pass rqstp->rq_client instead of exp->ex_client into exp_find_by_name(). However, the two should have the same value at this point.) Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: remove superfluous assignment from nfsd_lookupJ. Bruce Fields2007-07-171-2/+0
| | | | | | | | | | | | | | | | | | The "err" variable will only be used in the final return, which always happens after either the preceding err = fh_compose(...); or after the following err = nfserrno(host_err); So the earlier assignment to err is ignored. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: simplify exp_pseudoroot argumentsJ. Bruce Fields2007-07-174-9/+7
| | | | | | | | | | | | | We're passing three arguments to exp_pseudoroot, two of which are just fields of the svc_rqst. Soon we'll want to pass in a third field as well. So let's just give up and pass in the whole struct svc_rqst. Also sneak in some minor style cleanups while we're at it. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: parse secinfo information in exports downcallAndy Adamson2007-07-172-2/+71
| | | | | | | | | | | | | | | We add a list of pseudoflavors to each export downcall, which will be used both as a list of security flavors allowed on that export, and (in the order given) as the list of pseudoflavors to return on secinfo calls. This patch parses the new downcall information and adds it to the export structure, but doesn't use it for anything yet. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: store pseudoflavor in requestAndy Adamson2007-07-175-0/+21
| | | | | | | | | | | | Add a new field to the svc_rqst structure to record the pseudoflavor that the request was made with. For now we record the pseudoflavor but don't use it for anything. 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@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: build rpcsec_gss whenever nfsd4 is builtJ. Bruce Fields2007-07-171-0/+1
| | | | | | | | | | | Select rpcsec_gss support whenever asked for NFSv4 support. The rfc actually requires gss, and gss is also the main reason to migrate to v4. We already do this on the client side. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: make all exp_finding functions return -errno's on errJ. Bruce Fields2007-07-173-46/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently exp_find(), exp_get_by_name(), and friends, return an export on success, and on failure return: errors -EAGAIN (drop this request pending an upcall) or -ETIMEDOUT (an upcall has timed out), or return NULL, which can mean either that there was a memory allocation failure, or that an export was not found, or that a passed-in export lacks an auth_domain. Many callers seem to assume that NULL means that an export was not found, which may lead to bugs in the case of a memory allocation failure. Modify these functions to distinguish between the two NULL cases by returning either -ENOENT or -ENOMEM. They now never return NULL. We get to simplify some code in the process. We return -ENOENT in the case of a missing auth_domain. This case should probably be removed (or converted to a bug) after confirming that it can never happen. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: don't delegate files that have had conflictsMeelap Shah2007-07-172-0/+5
| | | | | | | | | | | | | | One more incremental delegation policy improvement: don't give out a delegation on a file if conflicting access has previously required that a delegation be revoked on that file. (In practice we'll forget about the conflict when the struct nfs4_file is removed on close, so this is of limited use for now, though it should at least solve a temporary problem with self-conflicts on write opens from the same client.) Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: vary maximum delegation limit based on RAM sizeMeelap Shah2007-07-173-1/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | Our original NFSv4 delegation policy was to give out a read delegation on any open when it was possible to. Since the lifetime of a delegation isn't limited to that of an open, a client may quite reasonably hang on to a delegation as long as it has the inode cached. This becomes an obvious problem the first time a client's inode cache approaches the size of the server's total memory. Our first quick solution was to add a hard-coded limit. This patch makes a mild incremental improvement by varying that limit according to the server's total memory size, allowing at most 4 delegations per megabyte of RAM. My quick back-of-the-envelope calculation finds that in the worst case (where every delegation is for a different inode), a delegation could take about 1.5K, which would make the worst case usage about 6% of memory. The new limit works out to be about the same as the old on a 1-gig server. [akpm@linux-foundation.org: Don't needlessly bloat vmlinux] [akpm@linux-foundation.org: Make it right for highmem machines] Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd: remove unused header interface.hJ. Bruce Fields2007-07-173-15/+0
| | | | | | | | | | It looks like Al Viro gutted this header file five years ago and it hasn't been touched since. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* knfsd: nfsd4: fix handling of acl errrorsJ. Bruce Fields2007-07-172-15/+10
| | | | | | | | | | | | | | | | | | | | nfs4_acl_nfsv4_to_posix() returns an error and returns any posix acls calculated in two caller-provided pointers. It was setting these pointers to -errno in some error cases, resulting in nfsd4_set_nfs4_acl() calling posix_acl_release() with a -errno as an argument. Fix both the caller and the callee, by modifying nfsd4_set_nfs4_acl() to stop relying on the passed-in-pointers being left as NULL in the error case, and by modifying nfs4_acl_nfsv4_to_posix() to stop returning garbage in those pointers. Thanks to Alex Soule for reporting the bug. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Alexander Soule <soule@umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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