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2009-01-06mm: print out memmap number only if it is not zeroYinghai Lu
Don't print the size of the zone's memmap array if it does not have one. Impact: cleanup Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: show node to memory section relationship with symlinks in sysfsGary Hade
Show node to memory section relationship with symlinks in sysfs Add /sys/devices/system/node/nodeX/memoryY symlinks for all the memory sections located on nodeX. For example: /sys/devices/system/node/node1/memory135 -> ../../memory/memory135 indicates that memory section 135 resides on node1. Also revises documentation to cover this change as well as updating Documentation/ABI/testing/sysfs-devices-memory to include descriptions of memory hotremove files 'phys_device', 'phys_index', and 'state' that were previously not described there. In addition to it always being a good policy to provide users with the maximum possible amount of physical location information for resources that can be hot-added and/or hot-removed, the following are some (but likely not all) of the user benefits provided by this change. Immediate: - Provides information needed to determine the specific node on which a defective DIMM is located. This will reduce system downtime when the node or defective DIMM is swapped out. - Prevents unintended onlining of a memory section that was previously offlined due to a defective DIMM. This could happen during node hot-add when the user or node hot-add assist script onlines _all_ offlined sections due to user or script inability to identify the specific memory sections located on the hot-added node. The consequences of reintroducing the defective memory could be ugly. - Provides information needed to vary the amount and distribution of memory on specific nodes for testing or debugging purposes. Future: - Will provide information needed to identify the memory sections that need to be offlined prior to physical removal of a specific node. Symlink creation during boot was tested on 2-node x86_64, 2-node ppc64, and 2-node ia64 systems. Symlink creation during physical memory hot-add tested on a 2-node x86_64 system. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: do_sync_mapping_range integrity fixNick Piggin
Chris Mason notices do_sync_mapping_range didn't actually ask for data integrity writeout. Unfortunately, it is advertised as being usable for data integrity operations. This is a data integrity bug. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages more terminate quicklyAndrew Morton
Now that we have the early-termination logic in place, it makes sense to bail out early in all other cases where done is set to 1. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages terminate quicklyNick Piggin
Terminate the write_cache_pages loop upon encountering the first page past end, without locking the page. Pages cannot have their index change when we have a reference on them (truncate, eg truncate_inode_pages_range performs the same check without the page lock). Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages optimise page cleaningNick Piggin
In write_cache_pages, if we get stuck behind another process that is cleaning pages, we will be forced to wait for them to finish, then perform our own writeout (if it was redirtied during the long wait), then wait for that. If a page under writeout is still clean, we can skip waiting for it (if we're part of a data integrity sync, we'll be waiting for all writeout pages afterwards, so we'll still be waiting for the other guy's write that's cleaned the page). Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages cleanupsNick Piggin
Get rid of some complex expressions from flow control statements, add a comment, remove some duplicate code. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages integrity fixNick Piggin
In write_cache_pages, nr_to_write is heeded even for data-integrity syncs, so the function will return success after writing out nr_to_write pages, even if that was not sufficient to guarantee data integrity. The callers tend to set it to values that could break data interity semantics easily in practice. For example, nr_to_write can be set to mapping->nr_pages * 2, however if a file has a single, dirty page, then fsync is called, subsequent pages might be concurrently added and dirtied, then write_cache_pages might writeout two of these newly dirty pages, while not writing out the old page that should have been written out. Fix this by ignoring nr_to_write if it is a data integrity sync. This is a data integrity bug. The reason this has been done in the past is to avoid stalling sync operations behind page dirtiers. "If a file has one dirty page at offset 1000000000000000 then someone does an fsync() and someone else gets in first and starts madly writing pages at offset 0, we want to write that page at 1000000000000000. Somehow." What we do today is return success after an arbitrary amount of pages are written, whether or not we have provided the data-integrity semantics that the caller has asked for. Even this doesn't actually fix all stall cases completely: in the above situation, if the file has a huge number of pages in pagecache (but not dirty), then mapping->nrpages is going to be huge, even if pages are being dirtied. This change does indeed make the possibility of long stalls lager, and that's not a good thing, but lying about data integrity is even worse. We have to either perform the sync, or return -ELINUXISLAME so at least the caller knows what has happened. There are subsequent competing approaches in the works to solve the stall problems properly, without compromising data integrity. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages writepage error fixNick Piggin
In write_cache_pages, if ret signals a real error, but we still have some pages left in the pagevec, done would be set to 1, but the remaining pages would continue to be processed and ret will be overwritten in the process. It could easily be overwritten with success, and thus success will be returned even if there is an error. Thus the caller is told all writes succeeded, wheras in reality some did not. Fix this by bailing immediately if there is an error, and retaining the first error code. This is a data integrity bug. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages early loop terminationNick Piggin
We'd like to break out of the loop early in many situations, however the existing code has been setting mapping->writeback_index past the final page in the pagevec lookup for cyclic writeback. This is a problem if we don't process all pages up to the final page. Currently the code mostly keeps writeback_index reasonable and hacked around this by not breaking out of the loop or writing pages outside the range in these cases. Keep track of a real "done index" that enables us to terminate the loop in a much more flexible manner. Needed by the subsequent patch to preserve writepage errors, and then further patches to break out of the loop early for other reasons. However there are no functional changes with this patch alone. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: write_cache_pages cyclic fixNick Piggin
In write_cache_pages, scanned == 1 is supposed to mean that cyclic writeback has circled through zero, thus we should not circle again. However it gets set to 1 after the first successful pagevec lookup. This leads to cases where not enough data gets written. Counterexample: file with first 10 pages dirty, writeback_index == 5, nr_to_write == 10. Then the 5 last pages will be found, and scanned will be set to 1, after writing those out, we will not cycle back to get the first 5. Rework this logic, now we'll always cycle unless we started off from index 0. When cycling, only write out as far as 1 page before the start page from the first cycle (so we don't write parts of the file twice). Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06do_mpage_readpage(): don't submit lots of small bios on boundaryMiquel van Smoorenburg
While tracing I/O patterns with blktrace (a great tool) a few weeks ago I identified a minor issue in fs/mpage.c As the comment above mpage_readpages() says, a fs's get_block function will set BH_Boundary when it maps a block just before a block for which extra I/O is required. Since get_block() can map a range of pages, for all these pages the BH_Boundary flag will be set. But we only need to push what I/O we have accumulated at the last block of this range. This makes do_mpage_readpage() send out the largest possible bio instead of a bunch of page-sized ones in the BH_Boundary case. Signed-off-by: Miquel van Smoorenburg <mikevs@xs4all.net> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06oom: print triggering task's cpuset and mems allowedDavid Rientjes
When cpusets are enabled, it's necessary to print the triggering task's set of allowable nodes so the subsequently printed meminfo can be interpreted correctly. We also print the task's cpuset name for informational purposes. [rientjes@google.com: task lock current before dereferencing cpuset] Cc: Paul Menage <menage@google.com> Cc: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06oom: fix zone_scan_mutex nameDavid Rientjes
zone_scan_mutex is actually a spinlock, so name it appropriately. Signed-off-by: David Rientjes <rientjes@google.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: invoke oom-killer from page faultNick Piggin
Rather than have the pagefault handler kill a process directly if it gets a VM_FAULT_OOM, have it call into the OOM killer. With increasingly sophisticated oom behaviour (cpusets, memory cgroups, oom killing throttling, oom priority adjustment or selective disabling, panic on oom, etc), it's silly to unconditionally kill the faulting process at page fault time. Create a hook for pagefault oom path to call into instead. Only converted x86 and uml so far. [akpm@linux-foundation.org: make __out_of_memory() static] [akpm@linux-foundation.org: fix comment] Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Jeff Dike <jdike@addtoit.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: move_pages: no need to set pp->page to ZERO_PAGE(0) by defaultBrice Goglin
pp->page is never used when not set to the right page, so there is no need to set it to ZERO_PAGE(0) by default. Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: rework do_pages_move() to work on page_sized chunksBrice Goglin
Rework do_pages_move() to work by page-sized chunks of struct page_to_node that are passed to do_move_page_to_node_array(). We now only have to allocate a single page instead a possibly very large vmalloc area to store all page_to_node entries. As a result, new_page_node() will now have a very small lookup, hidding much of the overall sys_move_pages() overhead. Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Nathalie Furmento <Nathalie.Furmento@labri.fr> Acked-by: Christoph Lameter <cl@linux-foundation.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: don't mark_page_accessed in shmem_faultHugh Dickins
Following "mm: don't mark_page_accessed in fault path", which now places a mark_page_accessed() in zap_pte_range(), we should remove the mark_page_accessed() from shmem_fault(). Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Johannes Weiner <hannes@saeurebad.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: don't mark_page_accessed in fault pathNick Piggin
Doing a mark_page_accessed at fault-time, then doing SetPageReferenced at unmap-time if the pte is young has a number of problems. mark_page_accessed is supposed to be roughly the equivalent of a young pte for unmapped references. Unfortunately it doesn't come with any context: after being called, reclaim doesn't know who or why the page was touched. So calling mark_page_accessed not only adds extra lru or PG_referenced manipulations for pages that are already going to have pte_young ptes anyway, but it also adds these references which are difficult to work with from the context of vma specific references (eg. MADV_SEQUENTIAL pte_young may not wish to contribute to the page being referenced). Then, simply doing SetPageReferenced when zapping a pte and finding it is young, is not a really good solution either. SetPageReferenced does not correctly promote the page to the active list for example. So after removing mark_page_accessed from the fault path, several mmap()+touch+munmap() would have a very different result from several read(2) calls for example, which is not really desirable. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Johannes Weiner <hannes@saeurebad.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: report the MMU pagesize in /proc/pid/smapsMel Gorman
The KernelPageSize entry in /proc/pid/smaps is the pagesize used by the kernel to back a VMA. This matches the size used by the MMU in the majority of cases. However, one counter-example occurs on PPC64 kernels whereby a kernel using 64K as a base pagesize may still use 4K pages for the MMU on older processor. To distinguish, this patch reports MMUPageSize as the pagesize used by the MMU in /proc/pid/smaps. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06mm: report the pagesize backing a VMA in /proc/pid/smapsMel Gorman
It is useful to verify a hugepage-aware application is using the expected pagesizes for its memory regions. This patch creates an entry called KernelPageSize in /proc/pid/smaps that is the size of page used by the kernel to back a VMA. The entry is not called PageSize as it is possible the MMU uses a different size. This extension should not break any sensible parser that skips lines containing unrecognised information. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: "KOSAKI Motohiro" <kosaki.motohiro@jp.fujitsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-07Merge branch 'next' into for-linusJames Morris
2009-01-07CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3]David Howells
Fix a regression in cap_capable() due to: commit 3b11a1decef07c19443d24ae926982bc8ec9f4c0 Author: David Howells <dhowells@redhat.com> Date: Fri Nov 14 10:39:26 2008 +1100 CRED: Differentiate objective and effective subjective credentials on a task The problem is that the above patch allows a process to have two sets of credentials, and for the most part uses the subjective credentials when accessing current's creds. There is, however, one exception: cap_capable(), and thus capable(), uses the real/objective credentials of the target task, whether or not it is the current task. Ordinarily this doesn't matter, since usually the two cred pointers in current point to the same set of creds. However, sys_faccessat() makes use of this facility to override the credentials of the calling process to make its test, without affecting the creds as seen from other processes. One of the things sys_faccessat() does is to make an adjustment to the effective capabilities mask, which cap_capable(), as it stands, then ignores. The affected capability check is in generic_permission(): if (!(mask & MAY_EXEC) || execute_ok(inode)) if (capable(CAP_DAC_OVERRIDE)) return 0; This change passes the set of credentials to be tested down into the commoncap and SELinux code. The security functions called by capable() and has_capability() select the appropriate set of credentials from the process being checked. This can be tested by compiling the following program from the XFS testsuite: /* * t_access_root.c - trivial test program to show permission bug. * * Written by Michael Kerrisk - copyright ownership not pursued. * Sourced from: http://linux.derkeiler.com/Mailing-Lists/Kernel/2003-10/6030.html */ #include <limits.h> #include <unistd.h> #include <stdio.h> #include <stdlib.h> #include <fcntl.h> #include <sys/stat.h> #define UID 500 #define GID 100 #define PERM 0 #define TESTPATH "/tmp/t_access" static void errExit(char *msg) { perror(msg); exit(EXIT_FAILURE); } /* errExit */ static void accessTest(char *file, int mask, char *mstr) { printf("access(%s, %s) returns %d\n", file, mstr, access(file, mask)); } /* accessTest */ int main(int argc, char *argv[]) { int fd, perm, uid, gid; char *testpath; char cmd[PATH_MAX + 20]; testpath = (argc > 1) ? argv[1] : TESTPATH; perm = (argc > 2) ? strtoul(argv[2], NULL, 8) : PERM; uid = (argc > 3) ? atoi(argv[3]) : UID; gid = (argc > 4) ? atoi(argv[4]) : GID; unlink(testpath); fd = open(testpath, O_RDWR | O_CREAT, 0); if (fd == -1) errExit("open"); if (fchown(fd, uid, gid) == -1) errExit("fchown"); if (fchmod(fd, perm) == -1) errExit("fchmod"); close(fd); snprintf(cmd, sizeof(cmd), "ls -l %s", testpath); system(cmd); if (seteuid(uid) == -1) errExit("seteuid"); accessTest(testpath, 0, "0"); accessTest(testpath, R_OK, "R_OK"); accessTest(testpath, W_OK, "W_OK"); accessTest(testpath, X_OK, "X_OK"); accessTest(testpath, R_OK | W_OK, "R_OK | W_OK"); accessTest(testpath, R_OK | X_OK, "R_OK | X_OK"); accessTest(testpath, W_OK | X_OK, "W_OK | X_OK"); accessTest(testpath, R_OK | W_OK | X_OK, "R_OK | W_OK | X_OK"); exit(EXIT_SUCCESS); } /* main */ This can be run against an Ext3 filesystem as well as against an XFS filesystem. If successful, it will show: [root@andromeda src]# ./t_access_root /tmp/xxx 0 4043 4043 ---------- 1 dhowells dhowells 0 2008-12-31 03:00 /tmp/xxx access(/tmp/xxx, 0) returns 0 access(/tmp/xxx, R_OK) returns 0 access(/tmp/xxx, W_OK) returns 0 access(/tmp/xxx, X_OK) returns -1 access(/tmp/xxx, R_OK | W_OK) returns 0 access(/tmp/xxx, R_OK | X_OK) returns -1 access(/tmp/xxx, W_OK | X_OK) returns -1 access(/tmp/xxx, R_OK | W_OK | X_OK) returns -1 If unsuccessful, it will show: [root@andromeda src]# ./t_access_root /tmp/xxx 0 4043 4043 ---------- 1 dhowells dhowells 0 2008-12-31 02:56 /tmp/xxx access(/tmp/xxx, 0) returns 0 access(/tmp/xxx, R_OK) returns -1 access(/tmp/xxx, W_OK) returns -1 access(/tmp/xxx, X_OK) returns -1 access(/tmp/xxx, R_OK | W_OK) returns -1 access(/tmp/xxx, R_OK | X_OK) returns -1 access(/tmp/xxx, W_OK | X_OK) returns -1 access(/tmp/xxx, R_OK | W_OK | X_OK) returns -1 I've also tested the fix with the SELinux and syscalls LTP testsuites. Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: J. Bruce Fields <bfields@citi.umich.edu> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2009-01-07Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() ↵James Morris
[ver #2]" This reverts commit 14eaddc967b16017d4a1a24d2be6c28ecbe06ed8. David has a better version to come.
2009-01-06gianfar: ensure ECNTRL[R100] is cleared on link state changeLi Yang
When changing the link between 100Mbps and 1Gbps in SGMII mode it was found out that the link would stop working. The issue is that ECNTRL[R100] needs to be cleared when in 1Gbps mode. Older reference manuals didn't require the explicitly clearing but has since been found it that it is needed. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Andy Fleming <afleming@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-06Staging: android: binder: fix build errorsGreg Kroah-Hartman
This fixes the build errors and warnings in the binder driver. It can't be a module, due to a lack of some of the symbols being exported. Also added a MODULE_LICENSE(), as it was missing. Cc: Arve Hjønnevåg <arve@android.com> Cc: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: add lowmemorykiller driverSan Mehat
From: San Mehat <san@android.com> Cc: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: remove dummy android.c driverGreg Kroah-Hartman
There are files now in the drivers/staging/android/ directory, so the dummy android.c file can be safely removed. Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: timed_gpio: Rename android_timed_gpio to timed_gpioMike Lockwood
Signed-off-by: Mike Lockwood <lockwood@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: add timed_gpio driverMike Lockwood
driver for GPIOs that turn back off after a delay From: Mike Lockwood <lockwood@android.com> Signed-off-by: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: add ram_console driverArve Hjønnevåg
Doesn't quite link properly under all configurations, and it has way too many different build options, but it's a start. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: add logging driverRobert Love
Signed-off-by: Robert Love <rlove@google.com> Signed-off-by: Brian Swetland <swetland@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06staging: android: binder: Fix use of euidJ.R. Mauro
Task credentials were moved and must be accessed through task_struct.cred Signed-off-by: J.R. Mauro <jrm8005@gmail.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: binder: Fix gcc warnings about improper format specifiers ↵J.R. Mauro
for size_t in printk Use the proper format specifiers for printing size_t values. Signed-off-by: J.R. Mauro <jrm8005@gmail.com> Cc: Arve Hjønnevåg <arve@android.com> Cc: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: android: add binder driverArve Hjønnevåg
It builds, but not as a module, and with lots of warnings. I also had to fix up a few syntax errors to get it to build properly, I'm doubting that anyone has built it in a while :( Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: add android frameworkGreg Kroah-Hartman
This prepares us to start adding the android drivers to the build. The dummy android.c file will go away in the next few patches, as it will not be needed once drivers/staging/android/ has a driver in it. Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: fix netdev->priv b0rkageGreg Kroah-Hartman
netdev->priv is now gone, use netdev_priv() instead. This fixes the build error in the network driver within the epl stack. Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: hr timers all run in hard irq context nowGreg Kroah-Hartman
Because of this, we can't set the mode for the timer, so delete this code as it causes a build error right now. Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: run Lindent on *.c filesGreg Kroah-Hartman
It's a start, still a mess... Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: run Lindent on *.h filesGreg Kroah-Hartman
It's a start, still a mess... Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: run Lindent on all user/*.h filesGreg Kroah-Hartman
It's a start, still a mess... Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: epl: run Lindent on all kernel/*.h filesGreg Kroah-Hartman
It's a start, still a mess... Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: add epl stackDaniel Krueger
This is the openPOWERLINK network stack from systec electronic. It's a bit messed up as there is a driver mixed into the middle of it, lots of work needs to be done to unwind the different portions to make it sane. Cc: Daniel Krueger <daniel.krueger@systec-electronic.com> Cc: Ronald Sieber <Ronald.Sieber@systec-electronic.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: frontier: fix compiler warningsGreg Kroah-Hartman
Basically remove unused code and variables still hanging around. Cc: David Taht <d@teklibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: frontier: remove unused alphatrack_sysfs.c fileGreg Kroah-Hartman
The alphatrack_sysfs.c is unused, so remove it. Cc: David Taht <d@teklibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: add frontier tranzport and alphatrack driversDavid Taht
Adds the tranzport and alphatrack drivers to the staging tree. Cc: David Taht <d@teklibre.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: rt2870: fix up netdev->priv usageGreg Kroah-Hartman
Now that netdev->priv is removed, fix the driver to use netdev->ml_priv like it always should have been doing. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: rt2870: disable root hack for reading filesGreg Kroah-Hartman
We are now using credentials, so just blindly setting the fsuid and fsguid isn't acceptable. All this means is that the config file needs to be readable by the driver thread, not a big deal. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: add rt2870 wireless driverGreg Kroah-Hartman
This is the Ralink RT2870 driver from the company that does horrible things like reading a config file from /etc. However, the driver that is currently under development from the wireless development community is not working at all yet, so distros and users are using this version instead (quite common hardware on a lot of netbook machines). So here is this driver, for now, until the wireless developers get a "clean" version into the main tree, or until this version is cleaned up sufficiently to move out of the staging tree. Ported to the Linux build system and cleaned up a bit already by me. Cc: Linux wireless <linux-wireless@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-06Staging: add mimio xi driverGreg Kroah-Hartman
This patch adds the Mimio Xi interactive whiteboard driver to the tree. It was originally written by mwilder@cs.nmsu.edu, but cleaned up and forward ported by me to the latest kernel version. Cc: Phil Hannent <phil@hannent.co.uk> Cc: <mwilder@cs.nmsu.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>