- 24 Jun, 2005 40 commits
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NeilBrown authored
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>
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NeilBrown authored
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:
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NeilBrown authored
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:
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NeilBrown authored
Setclientid code assumes there is only one match in unconfirmed list. Make sure that assumption holds. From: Fred Isaman Signed-off-by:
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NeilBrown authored
This patch contains the following possible cleanups: - make needlessly global code static Signed-off-by:
Adrian Bunk <bunk@stusta.de> Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
Minor setclientid cleanup Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
We can be a little more concise here. Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
nfs4_reclaim_init is no longer performing any useful function. Signed-off-by:
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NeilBrown authored
Separate out stuff that needs initialization on startup from stuff that only needs initialization on module init from static data. Signed-off-by:
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NeilBrown authored
Somewhat gratuitous rename to simplify following patch. Signed-off-by:
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NeilBrown authored
Allow recovery of delegations after reboot. Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
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:
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NeilBrown authored
Minor cleanup. Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
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:
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NeilBrown authored
Silence another annoying "failed to contact portmap (errno -512)" on shutdown. Signed-off-by:
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NeilBrown authored
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:
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NeilBrown authored
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:
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NeilBrown authored
These remaining debugging counters haven't proved that useful. Signed-off-by:
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NeilBrown authored
Allocate delegations from a slab cache. Signed-off-by:
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NeilBrown authored
Allocate stateid's from a slab cache. Signed-off-by:
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NeilBrown authored
The structures the server uses to keep track of various pieces of nfsv4 state (open files, outstanding delegations, etc.) are likely to be allocated and deallocated frequently and seem reasonable candidates for slab caches. While we're at it, the slab code keeps statistics that help catch leaks and such, so we may as well take this chance to eliminate some debugging counters that we've been keeping ourselves. Start with the struct nfs4_file. Signed-off-by:
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NeilBrown authored
We currently return err_grace if a user attempts a non-reclaim open during the grace period. But we also need to prevent renames and removes, at least, to ensure clients have the chance to recover state on files before they are moved or deleted. Of course, local users could also do renames and removes during the lease period, and there's not much we can do about that. This at least will help with remote users. Signed-off-by:
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NeilBrown authored
We're returning NFS4_FH_NOEXPIRE_WITH_OPEN | NFS4_FH_VOL_RENAME for the fh_expire_type attribute. This is incorrect: 1. The spec actually only allows NOEXPIRE_WITH_OPEN when VOLATILE_ANY is also set. 2. Filehandles for open files can expire, if the file is removed and there is a reboot. 3. Filehandles are only volatile on rename in the nosubtree check case. Unfortunately, there's no way to indicate that we only expire on remove. So our only choice is FH4_VOLATILE_ANY. Although it's redundant, we also set FH4_VOL_RENAME in the subtree check case, since subtreecheck does actually cause problems in practice and it seems possibly useful to give clients some way to distinguish that case. Fix a mispelled #define while we're at it. Signed-off-by:
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NeilBrown authored
Add OPEN claim type NFS4_OPEN_CLAIM_DELEGATE_CUR to nfsd4_open(). A delegation stateid and a name are provided. OPEN with O_CREAT is not legal with this claim type; otherwise, use the NFS4_OPEN_CLAIM_NULL code path to lookup the filename to be opened. Signed-off-by:
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NeilBrown authored
State logic for OPEN with claim type CLAIM_DELEGATE_CUR, which the NFSv4 client uses to report local OPENs on a delegated file back to the NFSv4 server. nfs4_check_deleg() performs input delegation stateid lookup and sanity check. Signed-off-by:
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NeilBrown authored
We don't really need to be doing a separate open for every stateid. And in the case of an open from a client that already has a delegation on a file, it unnecessarily results in a delegation recall. Signed-off-by:
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NeilBrown authored
Additional minor code reshuffling to prepare for claim_deleg_cur support. Signed-off-by:
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NeilBrown authored
Factor out a bit of common code that will be useful elsewhere. Signed-off-by:
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John Levon authored
The below patch passes samples from anonymous regions to userspace instead of just dropping them. This provides the support needed for reporting anonymous-region code samples (today: basic accumulated results; later: Java and other dynamically compiled code). As this changes the format, an upgrade to the just-released 0.9 release of the userspace tools is required. This patch is based upon an earlier one by Will Cohen <wcohen@redhat.com> Signed-off-by:
John Levon <levon@movementarian.org> Signed-off-by:
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Mauro Carvalho Chehab authored
tuner-core.c, tuner.h: - tuner-core changed to support multiple I2C devices used on some adapters; - Kconfig now has an option (CONFIG_TUNER_MULTI_I2C) to enable this new behavor; - By default, even enabling CONFIG_TUNER_MULTI_I2C, tuner-core emulates the old behavor, using first I2C device for both FM and TV; - There is a new i2c command (TUNER_SET_ADDR) to allow tuner clients to select I2C address for FM or TV tuner; - Tuner I2C dettach now generates a warning on syslog if failed. tuner-simple.c: - TVision TVF-8531MF and TVF-5533 MF tuner included. It uses, by default, I2C on 0xC2 address for TV and on 0xC0 for Radio. Both TV and FM Radio mode are working. Signed-off-by:
Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by:
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Johannes Stezenbach authored
Added support for the Broadcom BCM3510 ATSC (8VSB/16VSB & ITU J83 AnnexB FEC QAM64/256) demodulator used in the first generation of Air2PC ATSC PCI-cards/USB-boxes made by B2C2. Signed-off-by:
Patrick Boettcher <pb@linuxtv.org> Signed-off-by:
Johannes Stezenbach <js@linuxtv.org> Signed-off-by:
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Johannes Stezenbach authored
Use time_after() macro. Signed-off-by:
Marcelo Feitoza Parisi <marcelo@feitoza.com.br> Signed-off-by:
Domen Puncer <domen@coderock.org> Signed-off-by:
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Johannes Stezenbach authored
Fix error checking during initialization. Thanks to Gerolf Wendland for discovering. Signed-off-by:
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Johannes Stezenbach authored
Add generalized dvb-usb driver which supports a wide variety of devices. Signed-off-by:
Randy Dunlap <rdunlap@xenotime.net> Signed-off-by:
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Johannes Stezenbach authored
Remove the dibusb driver which has been obsoleted by the generalized dvb-usb driver. Signed-off-by:
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