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2010-08-04SUNRPC: prevent task_cleanup running on freed xprtJ. Bruce Fields
We saw a report of a NULL dereference in xprt_autoclose: https://bugzilla.redhat.com/show_bug.cgi?id=611938 This appears to be the result of an xprt's task_cleanup running after the xprt is destroyed. Nothing in the current code appears to prevent that. Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Reduce asynchronous RPC task stack usageTrond Myklebust
We should just farm out asynchronous RPC tasks immediately to rpciod... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Move the bound cred to struct rpc_rqstTrond Myklebust
This will allow us to save the original generic cred in rpc_message, so that if we migrate from one server to another, we can generate a new bound cred without having to punt back to the NFS layer. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Clean up of rpc_bindcred()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Move remaining RPC client related task initialisation into clnt.cTrond Myklebust
Now that rpc_run_task() is the sole entry point for RPC calls, we can move the remaining rpc_client-related initialisation of struct rpc_task from sched.c into clnt.c. Also move rpc_killall_tasks() into the same file, since that too is relative to the rpc_clnt. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Ensure that rpc_exit() always wakes up a sleeping taskTrond Myklebust
Make rpc_exit() non-inline, and ensure that it always wakes up a task that has been queued. Kill off the now unused rpc_wake_up_task(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Make the credential cache hashtable size configurableTrond Myklebust
This patch allows the user to configure the credential cache hashtable size using a new module parameter: auth_hashtable_size When set, this parameter will be rounded up to the nearest power of two, with a maximum allowed value of 1024 elements. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04SUNRPC: Store the hashtable size in struct rpc_cred_cacheTrond Myklebust
Cleanup in preparation for allowing the user to determine the maximum hash table size. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04NFS: Ensure the AUTH_UNIX credcache is allocated dynamicallyTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2010-08-04omap: mailbox: reorganize headersFelipe Contreras
Remove kernel.h and module.h since they are not used correctly anyway. Also, remove device.h since it comes along with platform_device.h (always will I guess). Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: standarize on 'omap-mailbox'Felipe Contreras
omap{1,2}-mailbox are modules that provide the 'omap-mailbox' driver. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: only compile for configured archsFelipe Contreras
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: simplify omap_mbox_register()Felipe Contreras
No need to dynamically register mailboxes one by one. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: reorganize registeringFelipe Contreras
It's more extensible this way. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: add IRQ namesFelipe Contreras
Will be useful to identify them later. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: remove unecessary fieldsFelipe Contreras
Nobody is using them. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: don't export unecessary symbolsFelipe Contreras
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: update omap1 probingFelipe Contreras
Based on omap2 code. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: use correct config for omap1Felipe Contreras
CONFIG_OMAP_DSP is not in mainline, CONFIG_OMAP_MBOX_FWK is. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: 2420 should be detected at run-timeFelipe Contreras
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: reorganize structuresFelipe Contreras
OMAP4 ones messed up the organization. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: trivial cleanupsFelipe Contreras
And fix a few compilation warnings. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap mailbox: Set a device in logical mbox instance for traceabilityHiroshi DOYU
With this patch, you'll get the following sysfs directories. This structure implies that a single platform device, "omap2-mailbox" holds multiple logical mbox instances. This could be the base to add sysfs files for each logical mboxes. Then userland application can access a mbox through sysfs entries if necessary(ex: setting kfifo size dynamically) ~# tree -d -L 2 /sys/devices/platform/omap2-mailbox/ /sys/devices/platform/omap2-mailbox/ |-- driver -> ../../../bus/platform/drivers/omap2-mailbox |-- mbox | |-- dsp <- they are each instances of logical mailbox. | |-- ducati | |-- iva2 | |-- mbox01 | |-- mbox02 | |-- mbox03 | |-- ..... | `-- tesla |-- power `-- subsystem -> ../../../bus/platform This was wrongly dropped by: commit c7c158e57bce6220644f2bcd65d82e1468aa40ec Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: convert block api to kfifoOhad Ben-Cohen
The underlying buffering implementation of mailbox is converted from block API to kfifo due to the simplicity and speed of kfifo. The default size of the kfifo buffer is set to 256 bytes. This value is configurable at compile time (via CONFIG_OMAP_MBOX_KFIFO_SIZE), and can be changed at runtime (via the mbox_kfifo_size module parameter). Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: remove (un)likely macros from cold pathsOhad Ben-Cohen
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox cleanup: split MODULE_AUTHOR lineOhad Ben-Cohen
use multiple MODULE_AUTHOR lines for multiple authors Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04omap: mailbox: convert rwlocks to spinlockOhad Ben-Cohen
rwlocks are slower and have potential starvation issues therefore spinlocks are generally preferred. see also: http://lwn.net/Articles/364583/ Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Kanigeri Hari <h-kanigeri2@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Mailbox: disable mailbox interrupt when request queueFernando Guzman Lugo
when blk_get_request fails to get the request it is returning without read the message from the mailbox fifo, then when it leaves the isr and interruption is trigger again and again and the workqueue which get elements from the request queue is never executed and the kernel is stuck and shows a softlockup message. Now the mailbox interrupt is disabled when request queue is full and enabled when it pop a elememt form the request queue. Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Mailbox: new mutext lock for h/w mailbox configurationHiroshi DOYU
mailbox startup and shutdown are being executed against a single H/W module, and a mailbox H/W module is totally __independent__ of the registration of logical mailboxes. So, an independent mutext should be used for startup and shutdown. Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Mailbox: Check valid registered callback before callingFernando Guzman Lugo
This patch checks if the mailbox user has assinged a valid callback fuction before calling it. Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Mailbox: flush pending deferred works before freeing blk queueFernando Guzman Lugo
flush pending deferred works before freeing blk_queue to prevent any attempt of access to blk_queue after it was freed Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Mailbox: free mailbox interrupt before freeing blk queueFernando Guzman Lugo
Free interrupt before freeing blk_queue to avoid any attempt of access to blk_queue after it was freed. Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com> Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
2010-08-04Remove ARM default configurations which duplicate omap3_defconfigVincent Sanders
These configurations are no longer useful as the systems they support are covered by the generic omap3_defconfig Signed-off-by:Vincent Sanders <vince@simtec.co.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04CRIS: Discard exit.text and .data at runtimeJesper Nilsson
This allows us to handle references from __bug_table. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04Merge commit 'v2.6.35' into kbuild/kconfigMichal Marek
Conflicts: scripts/kconfig/Makefile
2010-08-04CRIS: Add cache aligned and read mostly data sectionsJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04Merge commit 'v2.6.35' into kbuild/kbuildMichal Marek
Conflicts: arch/powerpc/Makefile
2010-08-04omap: 3630: disable TLL SAR on 3630 ES1Anand Gadiyar
USBTLL Save-and-Restore is broken in 3630 ES1.0. Having it enabled could result in incorrect register restores as the OMAP exits off-mode. This could potentially result in unexpected wakeup events. (Refer 3630 errata ID i579) This is fixed in ES1.1. So disable it for ES1.0s. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04OMAP3630: Add ES1.1 and ES1.2 detectionAnand Gadiyar
Add revision detection for ES1.1 and ES1.2. Set default revision as ES1.2. Add CHIP_GE_OMAP3630ES1_1 to detect revisions 1.1 and later. This is needed for at least one feature that is broken in 3630ES1.0 but exists on older (3430 ES3.1) and newer revisions. Additionally, update some of the CHIP_GE_* macros to use other macros for ease of maintenance. Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Cc: Nishanth Menon <nm@ti.com> Cc: Manjunatha GK <manjugk@ti.com> [tony@atomide.com: update to remove fallthrough handling] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04omap: device: improve errors handlingArtem Bityutskiy
Do not forget to check the 'platform_device_add_data()' error code in 'omap_device_build_ss()'. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04Merge branch 'devel-map-io' into omap-for-linusTony Lindgren
2010-08-04omap3: introduce omap3_map_ioMike Rapoport
Most OMAP3-based boards use exactly the same code for .map_io method in the machine_desc structure. This patch introduces omap3_map_io and updates board-* files to use it as .map_io method. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04omap3: Unify omap2_set_globals_3[43,6x]x functionsSergio Aguirre
The only difference between them is the physical address of the uart4 port, which is only present in 36xx chips. We don't really need to care about keeping these 2 functions, since the decision to use uart4 is more cleanly done later when we do have access to omap_revision variable. Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> [tony@atomide.com: added comment for the uart4_phys] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04CRIS: Return something from profile writeJesper Nilsson
Even if it doesn't matter, we should return something. Also, clean up some formatting. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add ARTPEC-3 and timestamps for sync-serialJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Better ARTPEC-3 support for gpioJesper Nilsson
Add PWM support, correct comment for ARTPEC-3. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add include guardJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Better handling of pinmux settingsJesper Nilsson
Depending on eth, eth_mido and geth fields in wr_hwprot, don't set corresponding pins on gpio port b to gpio mode. This avoids re-resetting the ethernet PHY should this already have been done. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: New DMA defines for ARTPEC-3Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: __do_strncpy_from_user: Don't read the byte beyond the nilJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>