- 13 Jan, 2003 33 commits
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Patrick Mochel authored
This updates new cpufreq sysfs code to new rules.
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Trond Myklebust authored
The following patch provides minimal client support for the (mandatory) Kerberos V5 authentication mechanism under RPCSEC_GSS. See RFC2623 and RFC3010 for protocol details. Only authentication is supported for the moment. Data integrity and/or data privacy (encryption) will be implemented at a later stage.
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Trond Myklebust authored
This patches the RPCSEC_GSS client to make use of the upcall mechanism that was provided by patch [3/6]. If an RPC task presents a non-uptodate credential to call_refresh(), a user daemon is contacted by means of a dedicated rpc_pipefs pipe. The daemon is then fed the uid for which it must establish a new RPCSEC security context. While the daemon goes about its business, the RPC task is put to sleep on a wait queue in order to allow the 'rpciod' process to service other requests. If another task wants to use the same credential, it too will be put to sleep once it reaches call_refresh(). A timeout mechanism ensures that requests are retried (or that 'soft' mounts fail) if the daemon crashes / is killed. Once the daemon has established the RPCSEC context, it writes the result back to the pipe, causing the credential to be updated. Those RPC tasks that were sleeping on the context are automatically woken up, and their execution can proceed.
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Trond Myklebust authored
This patch provides the basic framework for RPCSEC_GSS authentication in the RPC client. The protocol is fully described in RFC-2203. Sun has supported it in their commercial NFSv3 and v2 implementations for quite some time, and it has been specified in RFC3010 as being mandatory for NFSv4. - Update the mount_data struct for NFSv2 and v3 in order to allow them to pass an RPCSEC_GSS security flavour. Compatibility with existing versions of the 'mount' program is ensured by requiring that RPCSEC support be enabled using the new flag NFS_MOUNT_SECFLAVOUR. - Provide secure authentication, and later data encryption on a per-user basis. A later patch will an provide an implementation of the Kerberos 5 security mechanism. SPKM and LIPKEY are still being planned. - Security context negotiation and initialization are all assumed to be done in userland. A later patch will provide the actual upcall mechanisms to allow for this.
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Trond Myklebust authored
This patch provides the upcall mechanism that will be used for communicating with the RPCSEC client user daemons. It sets up a 'ramfs' style filesystem (rpc_pipefs) that is populated with named pipes. Each time the kernel initializes a new NFS, lockd, statd or portmapper client, a directory automatically gets set up in this fs. The directory is initially only populated with a single file "info" that provides information such as the server IP address, the port number and the RPC service for the benefit of the user daemon. When an RPCSEC_GSS mechanism needs to communicate with the daemon, it is provided with a toolkit for setting up a named pipe in the same directory. It can then perform upcalls/downcalls in order to talk to the daemon in much the same way as is done by CODA. The NFSv4 client will also need to use this same filesystem to communicate with its user daemon in order to do name-to-uid/name-from-uid and name-to-gid/name-from-gid translation.
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Trond Myklebust authored
The RPCSEC_GSS user context defines a 'sequence number' in the AUTH header fields in order to provide protection against replay attacks. This number needs to lie within a given 'window', and is required to be updated even when retransmitting dropped requests. In order to allow this update to occur, move the XDR 'encode' phase so that it is done immediately before writing the data to the socket.
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Trond Myklebust authored
Clean up RPC client credcache lookups. - Remove the limitation whereby the RPC client may only look up credentials for the current task. The ability to lookup arbitrary credentials is needed in order to allow a user daemon to set the RPCSEC_GSS private information once it has finished negotiating the RPCSEC user context with the server.
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Jens Axboe authored
This patch has a bunch of io scheduler goodies that are, by now, well tested in -mm and by self and Nick Piggin. In order of interest: - Use rbtree data structure for sorting of requests. Even with the default queue lengths that are fairly short, this cuts a lot of run time for io scheduler intensive work loads. If we go to longer queue lengths, it very quickly becomes a necessity. - Add sysfs interface for the tunables. At the same time, finally kill the BLKELVGET/BLKELVSET completely. I made these return -ENOTTY in 2.5.1, but there are left-overs around the kernel. This old interface was never any good, it was centered around just one io scheduler. The io scheduler core itself has received count less hours of tuning by myself and Nick, should be in pretty good shape. Please apply. Andrew, I made some sysfs changes to the version from 2.5.56-mm1. It didn't even compile without warnings (or work, for that matter), as the sysfs store/show procedures needed updating. Hmm?
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Matthew Wilcox authored
Updates for 2.5.56: - Integrate Stephen Rothwell's compat code - OProfile support for Randolph Chung - Makefile updates from Sam Ravnborg - Regenerated defconfig as requested by Rusty - Generic device model updates (James Bottomley) - And lots of general updating bugfixing, etc.
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Dominik Brodowski authored
This patch by Hiroshi Miura adds a cpufreq driver for Cyrix MediaGX and National Semiconductor Geode processors using "Suspend Modulation". It's partly based on Zwane Mwaikambo's work.
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Dominik Brodowski authored
This patch adds a sysfs interface to the cpufreq core, and marks the previous /proc/cpufreq interface as deprecated. As in drivers/base/cpu.c a "CPU driver" is registered, cpufreq acts as "interface" to this, offering the following files for each CPU (in /system/devices/sys/cpu.../) where CPUfreq support is present cpuinfo_min_freq (ro) - minimum frequency (in kHz) the CPU supports cpuinfo_max_freq (ro) - maximum frequency (in kHz) the CPU supports scaling_min_freq (rw) - minimum frequency (in kHz) cpufreq may scale the CPU core to scaling_max_freq (rw) - maximum frequency (in kHz) cpufreq may scale the CPU core to scaling_governor (rw) - governor == "A feedback device on a machine or engine that is used to provide automatic control, as of speed, pressure, or temperature" [1, as noted by David Kimdon]. Decides what frequency is used. Currently, only "performance" and "powersave" are supported, more may be added later. (In future, a file scaling_driver (ro) which shows what CPUfreq driver is used (arm-sa1100, gx-suspmod, speedstep, longrun, powernow-k6, ...) might be added, and this driver will be allowed to add files scaling_driver_* for driver-specific settings like "prefer fast FSB". And scaling_governor_* files might offer settings for the governor.) To implement this sysfs interface, the driver model "interface" code is used. Unfortunately, it has a non-trivial locking bug in drivers/base/intf.c: there's a down_write call for cls->subsys.rwsem in add_intf(), which then calls add(), which may call intf->add_device(), which may call interface_add_data(), which calls kobject_register(), which calls kobject_add(), which then tries to down_write cls->subsys.rwsem. Remember, that was already locked writable in add_intf(). Because of that, interface_add_data() is commented out; this means that no link in /system/class/cpu/cpufreq is added, and that the dev-removal code isn't called. This shouldn't be a problem yet, though; as no cpufreq driver I know of is capable of CPU hotplugging. Dominik [1] http://dictionary.reference.com/search?q=governor
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Corey Minyard authored
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Jochen Friedrich authored
When mounting a Linux partition with NFSv2, READDIR fills in the last cookie without properly byte-swapping it. The following READDIR will fail, so the NFS client sees a truncated directory. Fix it thus.
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bk://ldm.bkbits.net/linux-2.5-coreLinus Torvalds authored
into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
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Patrick Mochel authored
into osdl.org:/home/mochel/src/kernel/devel/linux-2.5-core
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Patrick Mochel authored
- Remove count and off parameters from per-node meminfo show() method.
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Patrick Mochel authored
- Remove count and off parameters from show() methods. - Remove manual handling of reading from an offset, since the sysfs core handles that now. - Remove temp. buffer.
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Patrick Mochel authored
- Remove count and off parameters from show() methods. - Remove off parameter from store() methods. Note 1: These have not been tested, but should be obviously correct. Note 2: snprintf() was replaced with sprintf() where the filled buffer would obviously be < PAGE_SIZE. (like when printing single integer values). In places where strings were printed, PAGE_SIZE is used as the max string size.
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Patrick Mochel authored
- Reinstate count parameter for store() methods. - Remove off parameter from st.c and osst.c sysfs methods. - Remove count parameter from st.c and osst.c show() methods.
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Patrick Mochel authored
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Patrick Mochel authored
- Fixup struct device_attribute. - Fix the default device attributes.
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Patrick Mochel authored
- Fixup bus, driver, and class methods.
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Patrick Mochel authored
- Fixup subsys_sysfs_ops along the way.
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Patrick Mochel authored
...instead of returning the error value (which is number of bytes remaining).
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bk://are.twiddle.net/mod-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
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Linus Torvalds authored
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Jaroslav Kysela authored
- ISA PnP - removed isapnp_card_protocol reference - NE1000/2000 - fixed exit sequence and bugs in PnP code - aironet4500 - fixed exit sequence - ISDN - hisax_fcpcipnp - fixed compilation - OSS sound drivers - ad1848, cs4232 - updated to latest PnP code
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Linus Torvalds authored
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Richard Henderson authored
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Robert Love authored
As you mentioned, we do not correctly identify the P4-based Celeron in the kernel configuration help. Unfortunately, Intel has called all Celeron products simply "Celeron", so we call these "P4-based Celerons".
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Linus Torvalds authored
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Brian Gerst authored
Check for PnP BIOS in all fault paths, not just in do_trap().
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http://ppc.bkbits.net/for-linus-ppc64Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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- 14 Jan, 2003 6 commits
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Anton Blanchard authored
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Anton Blanchard authored
into samba.org:/scratch/anton/sfr
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Anton Blanchard authored
into samba.org:/scratch/anton/sfr
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Anton Blanchard authored
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Anton Blanchard authored
into samba.org:/scratch/anton/for-alan
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Anton Blanchard authored
into samba.org:/scratch/anton/for-alan
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- 13 Jan, 2003 1 commit
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Anton Blanchard authored
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