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2012-02-08staging: zram: remove xvmallocNitin Gupta
Removes the xvmalloc allocator code from the zram driver Signed-off-by: Nitin Gupta <ngupta@vflare.org> Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: zram: replace xvmalloc with zsmallocNitin Gupta
Replaces xvmalloc with zsmalloc as the compressed page allocator for zram Signed-off-by: Nitin Gupta <ngupta@vflare.org> Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: add zsmalloc to Kconfig/MakefileSeth Jennings
Adds the new zsmalloc library to the staging Kconfig and Makefile Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: zsmalloc: zsmalloc memory allocation libraryNitin Gupta
This patch creates a new memory allocation library named zsmalloc. NOTE: zsmalloc currently depends on SPARSEMEM for the MAX_PHYSMEM_BITS value needed to determine the format of the object handle. There may be a better way to do this. Feedback is welcome. Signed-off-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: zcache: crypto API supportSeth Jennings
This patch allow zcache to use the crypto API for page compression. It replaces the direct LZO compress/decompress calls with calls into the crypto compression API. The compressor to be used is specified in the kernel boot line with the zcache parameter like: zcache=lzo or zcache=deflate. If the specified compressor can't be loaded, zcache uses lzo as the default compressor. Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Consolidate all the wire protocol definitionsK. Y. Srinivasan
Consolidate all definitions that support communication with the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Consolidate the request structureK. Y. Srinivasan
Consolidate the request structure by getting rid of struct hv_storvsc_request. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Get rid of some unused definesK. Y. Srinivasan
Get rid of some unused defines. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup some protocol related constantsK. Y. Srinivasan
Cleanup some protocol related constants. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup the code for generating protocol versionK. Y. Srinivasan
Cleanup the code for generating protocol version. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Miscellaneous cleanup of storvsc driverK. Y. Srinivasan
Miscellaneous cleanup of storvsc driver - get rid of unnecessary defines and use fixed size types for structures used for communication with the host. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Rename the context field in hv_storvsc_requestK. Y. Srinivasan
Rename the context field in hv_storvsc_request. As part of this change fix the type of this field. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Get rid of the on_io_completion in hv_storvsc_requestK. Y. Srinivasan
Get rid of the on_io_completion field in struct hv_storvsc_request. As part of this relocate the bounce buffer handling code (to avoid having forward declarations). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Add a comment to explain life-cycle managementK. Y. Srinivasan
Add a comment to explain life-cycle management and fix format issue. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Move and cleanup storvsc_remove()K. Y. Srinivasan
Relocate the storvsc_remove() function to a different location in the file and invoke scsi_host_put() only after all the cleanup. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_host_reset_handler()K. Y. Srinivasan
Cleanup storvsc_host_reset_handler() by getting rid of storvsc_host_reset(). Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Introduce defines for srb status codesK. Y. Srinivasan
Introduce defines for srb status codes. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_queuecommand()K. Y. Srinivasan
Cleanup storvsc_queuecommand(). As part of this cleanup, rename the function to check if the scsi command can be sent to the host, consolidate error recovery and get rid of some dead code. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup storvsc_probe()K. Y. Srinivasan
Cleanup storvsc_probe(). As part of this cleanup, get rid of storvsc_get_ide_info() by inlining the necessary code. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: hv: storvsc: Cleanup some commentsK. Y. Srinivasan
Use consistent format for comments and get rid of some unnecessary comments. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: enable as staging driverDan Magenheimer
Enable build of ramster as a staging driver Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: ramster-specific new filesDan Magenheimer
New files for ramster support: The file ramster.h declares externs and some pampd bitfield manipulation. The file zcache.h declares some zcache functions that now must be accessed from the ramster glue code. The file ramster_o2net.c is the glue between zcache and the o2net messaging code, providing routines called from zcache that initiate messages, and routines that handle messages by calling zcache. TODO explains future plans for merging. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: ramster-specific changes to zcache/tmemDan Magenheimer
In tmem.[ch], new "repatriate" (provoke async get) and "localify" (handle incoming data resulting from an async get) routines combine with a handful of changes to existing pamops interfaces allow the generic tmem code to support asynchronous operations. Also, a new tmem_xhandle struct groups together key information that must be passed to remote tmem stores. Zcache-main.c is augmented with a large amount of ramster-specific code to handle remote operations and "foreign" pages on both ends of the "remotify" protocol. New "foreign" pools are auto-created on demand. A "selfshrinker" thread periodically repatriates remote persistent pages when local memory conditions allow. For certain operations, a queue is necessary to guarantee strict ordering as out-of-order puts/flushes can cause strange race conditions. Pampd pointers now either point to local memory OR describe a remote page; to allow the same 64-bits to describe either, the LSB is used to differentiate. Some acrobatics must be performed to ensure local memory is available to handle a remote persistent get, or deal with the data directly anyway if the malloc failed. Lots of ramster-specific statistics are available via sysfs. Note: Some debug ifdefs left in for now. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: ramster-specific changes to cluster codeDan Magenheimer
Ramster-specific changes to ocfs2 cluster foundation, including: A method for fooling the o2 heartbeat into starting without an ocfs2 filesystem; a new message mechanism ("data magic") for handling a reply to a message requesting data; a hack for keeping the cluster alive even after timeouts so cluster machines can be rebooted separately. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: local compression + tmemDan Magenheimer
Copy files from drivers/staging/zcache. Ramster compresses pages locally before transmitting them to another node, so we can leverage the zcache and tmem code directly. Note: there are no ramster-specific changes yet to these files. (Why copy? The ramster tmem.c/tmem.h changes are definitely shareable between zcache and ramster; the eventual destination for tmem.c is the linux lib directory. Ramster changes to zcache are more substantial and zcache is currently undergoing some significant unrelated changes (including a new allocator and breaking zcache-main.c into smaller files), so it seemed best to branch temporarily and merge later.) Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: ramster: cluster/messaging foundationDan Magenheimer
Copy cluster subdirectory from ocfs2. These files implement the basic cluster discovery, mapping, heartbeat / keepalive, and messaging ("o2net") that ramster requires for internode communication. Note: there are NO ramster-specific changes yet; this commit does NOT pass checkpatch since the copied source files do not. (Why copy? This particular part of ocfs2 has never been broken out for non-ocfs2 use before, some (small) changes are required for ramster to use that code, and ramster is currently incompatible with real ocfs2 anyway (requires !CONFIG_OCFS2_FS). Before ramster can be promoted out of staging, we will need to work with the ocfs2 maintainers to see if the code interdependencies can be merged, but for now, for staging, this seemed to be an expedient way to make use of the ocfs2 core cluster code while still incorporating necessary changes for ramster.) Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: Fix typo in mei/interrupt.cMasanari Iida
Correct spelling "reseting" to "resetting" in drivers/staging/mei/interrupt.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08telephony: Move to stagingJoe Perches
This stuff is really old and in quite poor shape. Does anyone still use it? If not, I think it's appropriate to let it simmer in staging for a few releases. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android/lowmemorykiller: Do not kill kernel threadsAnton Vorontsov
LMK should not try killing kernel threads. Suggested-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android/lowmemorykiller: No need for task->signal checkAnton Vorontsov
task->signal == NULL is not possible, so no need for these checks. Suggested-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android/lowmemorykiller: Better mm handlingAnton Vorontsov
LMK should not directly check for task->mm. The reason is that the process' threads may exit or detach its mm via use_mm(), but other threads may still have a valid mm. To catch this we use find_lock_task_mm(), which walks up all threads and returns an appropriate task (with lock held). Suggested-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android/lowmemorykiller: Don't grab tasklist_lockAnton Vorontsov
Grabbing tasklist_lock has its disadvantages, i.e. it blocks process creation and destruction. If there are lots of processes, blocking doesn't sound as a great idea. For LMK, it is sufficient to surround tasks list traverse with rcu_read_{,un}lock(). >From now on using force_sig() is not safe, as it can race with an already exiting task, so we use send_sig() now. As a downside, it won't kill PID namespace init processes, but that's not what we want anyway. Suggested-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: logger: clarify non-update of w_off in do_write_log_from_userTim Bird
Add comment to explain when w_off is not updated in case of failed second fragment copy to buffer. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: logger: clarify code in clock_intervalTim Bird
Add commentary, rename the function and make the code easier to read. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: logger: reorder prepare_to_wait and mutex_lockTim Bird
If mutex_lock waits, it will return in state TASK_RUNNING, rubbing out the effect of prepare_to_wait(). Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: logger: simplify and optimize get_entry_lenTim Bird
Make this code slightly easier to read, and eliminate calls to sub-routines. Some of these were previously optimized away by the compiler, but one memcpy was not. In my testing, this makes the code about 20% smaller, and has no sub-routine calls and no branches (on ARM). v2 of this patch is, IMHO, easier to read than v1. Compared to that patch it uses __u8 instead of unsigned char, for consistency with the __u16 val data type, simplifies the conditional expression, adds a another comment, and moves a common statement out of the if. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: logger: Change logger_offset() from macro to functionTim Bird
Convert to function and add log as a parameter, rather than relying on log in the context of the macro. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08drivers/staging/android/timed_gpio.c: Stlye fixesTracey Dent
Just made it more neat and not bother scripts/checkpatch.pl Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08drivers/staging/android/ashmem.c: CleanupsTracey Dent
Minor cleanups that consist of removal of a whitespace and make file_operations const. Signed-off-by: Tracey Dent <tdent48227@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: android: ram_console: Use resource_size functionThomas Meyer
The semantic patch that makes this change is available in scripts/coccinelle/api/resource_size.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08drivers:staging:android Typos: fix some comments that have typos in them.Justin P. Mattock
Below is a patch that fixes some typos in some comments. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: ram_console use kmemdup instead of kmallocGreg Dietsche
Replace kmalloc + memcpy will kmemdup in ram_console_late_init Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-01-31staging: nvec: Fix Kconfig dependenciesJulian Andres Klode
nvec modules do not require other stuff to be build in, nor does nvec_ps2 require mouse support, only generic serio support. Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: Use gpio_request_one() instead of gpio_request()Julian Andres Klode
This saves us some calls and thus makes the code shorter and nicer. Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: Fix typo s/I2C_SL_NEWL/I2C_SL_NEWSL/Julian Andres Klode
The constant I2C_SL_NEWL meant "new slave", but the S was missing. Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: ps2: change serio type to passthroughMarc Dietrich
This changes the serio type of the nvec_ps2 mouse port to passthrough. The old 8042 type seems appropiete for keyboards only. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: ps2: disable/enable mouse on suspend/resumeMarc Dietrich
This change makes the touchpad buttons work after suspend/resume. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: ps2: add some more debug functionsMarc Dietrich
This can print the mouse traffic which goes over the i2c bus. Make mouse debugging messages configurable and disable them by default. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: ps2: tell nvec to send 6 byte long messagesMarc Dietrich
This packet size used on most modern touchpads. Ideally, this should be configurable or autodetected. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-31staging: nvec: ps2: let the start/stop streaming commands be called by the ↵Marc Dietrich
start/stop functions of serio Instead of executing these commands during open/close, the start/stop event of the serio device seem to be more appropiete. Signed-off-by: Marc Dietrich <marvin24@gmx.de> Signed-off-by: Julian Andres Klode <jak@jak-linux.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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