- 26 Jul, 2013 1 commit
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Steven Rostedt (Red Hat) authored
Commit a8227415 "tracing: Protect ftrace_trace_arrays list in trace_events.c" added taking the trace_types_lock mutex in trace_events.c as there were several locations that needed it for protection. Unfortunately, it also encapsulated a call to tracing_reset_all_online_cpus() which also takes the trace_types_lock, causing a deadlock. This happens when a module has tracepoints and has been traced. When the module is removed, the trace events module notifier will grab the trace_types_lock, do a bunch of clean ups, and also clears the buffer by calling tracing_reset_all_online_cpus. This doesn't happen often which explains why it wasn't caught right away. Commit a8227415 was marked for stable, which means this must be sent to stable too. Link: http://lkml.kernel.org/r/51EEC646.7070306@broadcom.comReported-by:
Arend van Spril <arend@broadcom.com> Tested-by:
Arend van Spriel <arend@broadcom.com> Cc: Alexander Z Lam <azl@google.com> Cc: Vaibhav Nagarnaik <vnagarnaik@google.com> Cc: David Sharp <dhsharp@google.com> Cc: stable@vger.kernel.org # 3.10 Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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- 24 Jul, 2013 8 commits
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Steven Rostedt (Red Hat) authored
If a ftrace ops is registered with the SAVE_REGS flag set, and there's already a ops registered to one of its functions but without the SAVE_REGS flag, there's a small race window where the SAVE_REGS ops gets added to the list of callbacks to call for that function before the callback trampoline gets set to save the regs. The problem is, the function is not currently saving regs, which opens a small race window where the ops that is expecting regs to be passed to it, wont. This can cause a crash if the callback were to reference the regs, as the SAVE_REGS guarantees that regs will be set. To fix this, we add a check in the loop case where it checks if the ops has the SAVE_REGS flag set, and if so, it will ignore it if regs is not set. Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
After the previous changes trace_array_cpu->trace_cpu and trace_array->trace_cpu becomes write-only. Remove these members and kill "struct trace_cpu" as well. As a side effect this also removes memset(per_cpu_memory, 0). It was not needed, alloc_percpu() returns zero-filled memory. Link: http://lkml.kernel.org/r/20130723152613.GA23741@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
tracing_open() and tracing_snapshot_open() are racy, the memory inode->i_private points to can be already freed. Convert these last users of "inode->i_private == trace_cpu" to use "i_private = trace_array" and rely on tracing_get_cpu(). v2: incorporate the fix from Steven, tracing_release() must not blindly dereference file->private_data unless we know that the file was opened for reading. Link: http://lkml.kernel.org/r/20130723152610.GA23737@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
tracing_open_generic_tc() is racy, the memory inode->i_private points to can be already freed. 1. Change its last user, tracing_entries_fops, to use tracing_*_generic_tr() instead. 2. Change debugfs_create_file("buffer_size_kb", data) callers to pass "data = tr". 3. Change tracing_entries_read() and tracing_entries_write() to use tracing_get_cpu(). 4. Kill the no longer used tracing_open_generic_tc() and tracing_release_generic_tc(). Link: http://lkml.kernel.org/r/20130723152606.GA23730@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
tracing_open_generic_tc() is racy, the memory inode->i_private points to can be already freed. 1. Change one of its users, tracing_stats_fops, to use tracing_*_generic_tr() instead. 2. Change trace_create_cpu_file("stats", data) to pass "data = tr". 3. Change tracing_stats_read() to use tracing_get_cpu(). Link: http://lkml.kernel.org/r/20130723152603.GA23727@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
tracing_buffers_open() is racy, the memory inode->i_private points to can be already freed. Change debugfs_create_file("trace_pipe_raw", data) caller to pass "data = tr", tracing_buffers_open() can use tracing_get_cpu(). Change debugfs_create_file("snapshot_raw_fops", data) caller too, this file uses tracing_buffers_open/release. Link: http://lkml.kernel.org/r/20130723152600.GA23720@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
tracing_open_pipe() is racy, the memory inode->i_private points to can be already freed. Change debugfs_create_file("trace_pipe", data) callers to to pass "data = tr", tracing_open_pipe() can use tracing_get_cpu(). Link: http://lkml.kernel.org/r/20130723152557.GA23717@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
Every "file_operations" used by tracing_init_debugfs_percpu is buggy. f_op->open/etc does: 1. struct trace_cpu *tc = inode->i_private; struct trace_array *tr = tc->tr; 2. trace_array_get(tr) or fail; 3. do_something(tc); But tc (and tr) can be already freed before trace_array_get() is called. And it doesn't matter whether this file is per-cpu or it was created by init_tracer_debugfs(), free_percpu() or kfree() are equally bad. Note that even 1. is not safe, the freed memory can be unmapped. But even if it was safe trace_array_get() can wrongly succeed if we also race with the next new_instance_create() which can re-allocate the same tr, or tc was overwritten and ->tr points to the valid tr. In this case 3. uses the freed/reused memory. Add the new trivial helper, trace_create_cpu_file() which simply calls trace_create_file() and encodes "cpu" in "struct inode". Another helper, tracing_get_cpu() will be used to read cpu_nr-or-RING_BUFFER_ALL_CPUS. The patch abuses ->i_cdev to encode the number, it is never used unless the file is S_ISCHR(). But we could use something else, say, i_bytes or even ->d_fsdata. In any case this hack is hidden inside these 2 helpers, it would be trivial to change them if needed. This patch only changes tracing_init_debugfs_percpu() to use the new trace_create_cpu_file(), the next patches will change file_operations. Note: tracing_get_cpu(inode) is always safe but you can't trust the result unless trace_array_get() was called, without trace_types_lock which acts as a barrier it can wrongly return RING_BUFFER_ALL_CPUS. Link: http://lkml.kernel.org/r/20130723152554.GA23710@redhat.com Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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- 19 Jul, 2013 13 commits
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Oleg Nesterov authored
tracing_buffers_open() does trace_array_get() and then it wrongly inrcements tr->ref again under trace_types_lock. This means that every caller leaks trace_array: # cd /sys/kernel/debug/tracing/ # mkdir instances/X # true < instances/X/per_cpu/cpu0/trace_pipe_raw # rmdir instances/X rmdir: failed to remove `instances/X': Device or resource busy Link: http://lkml.kernel.org/r/20130719153644.GA18899@redhat.com Cc: Ingo Molnar <mingo@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: stable@vger.kernel.org # 3.10 Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
Trivial. trace_array->waiter has no users since 6eaaa5d5 "tracing/core: use appropriate waiting on trace_pipe". Link: http://lkml.kernel.org/r/20130719142036.GA1594@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
event_id_read() has no reason to kmalloc "struct trace_seq" (more than PAGE_SIZE!), it can use a small buffer instead. Note: "if (*ppos) return 0" looks strange and even wrong, simple_read_from_buffer() handles ppos != 0 case corrrectly. And it seems that almost every user of trace_seq in this file should be converted too. Unless you use seq_open(), trace_seq buys nothing compared to the raw buffer, but it needs a bit more memory and code. Link: http://lkml.kernel.org/r/20130718184712.GA4786@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
f_next() looks overcomplicated, and it is not strictly correct even if this doesn't matter. Say, FORMAT_FIELD_SEPERATOR should not return NULL (means EOF) if trace_get_fields() returns an empty list, we should simply advance to FORMAT_PRINTFMT as we do when we find the end of list. 1. Change f_next() to return "struct list_head *" rather than "ftrace_event_field *", and change f_show() to do list_entry(). This simplifies the code a bit, only f_show() needs to know about ftrace_event_field, and f_next() can play with ->prev directly 2. Change f_next() to not play with ->prev / return inside the switch() statement. It can simply set node = head/common_head, the prev-or-advance-to-the-next-magic below does all work. While at it. f_start() looks overcomplicated too. I don't think *pos == 0 makes sense as a separate case, just change this code to do "while" instead of "do/while". The patch also moves f_start() down, close to f_stop(). This is purely cosmetic, just to make the locking added by the next patch more clear/visible. Link: http://lkml.kernel.org/r/20130718184710.GA4783@redhat.comSigned-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Steven Rostedt (Red Hat) authored
The selftest for function and function graph tracers are defined as __init, as they are only executed at boot up. The "tracer" structs that are associated to those tracers are not setup as __init as they are used after boot. To stop mismatch warnings, those structures need to be annotated with __ref_data. Currently, the tracer structures are defined to __read_mostly, as they do not really change. But in the future they should be converted to consts, but that will take a little work because they have a "next" pointer that gets updated when they are registered. That will have to wait till the next major release. Link: http://lkml.kernel.org/r/1373596735.17876.84.camel@gandalf.local.homeReported-by:
kbuild test robot <fengguang.wu@intel.com> Reported-by:
Chen Gang <gang.chen@asianux.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Alexander Z Lam authored
Some error paths did not handle ref counting properly, and some trace files need ref counting. Link: http://lkml.kernel.org/r/1374171524-11948-1-git-send-email-azl@google.com Cc: stable@vger.kernel.org # 3.10 Cc: Vaibhav Nagarnaik <vnagarnaik@google.com> Cc: David Sharp <dhsharp@google.com> Cc: Alexander Z Lam <lambchop468@gmail.com> Signed-off-by:
Alexander Z Lam <azl@google.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Alexander Z Lam authored
Remove debugfs directories for tracing instances during creation if an error occurs causing the trace_array for that instance to not be added to ftrace_trace_arrays. If the directory continues to exist after the error, it cannot be removed because the respective trace_array is not in ftrace_trace_arrays. Link: http://lkml.kernel.org/r/1373502874-1706-2-git-send-email-azl@google.com Cc: stable@vger.kernel.org # 3.10 Cc: Vaibhav Nagarnaik <vnagarnaik@google.com> Cc: David Sharp <dhsharp@google.com> Cc: Alexander Z Lam <lambchop468@gmail.com> Signed-off-by:
Alexander Z Lam <azl@google.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Masami Hiramatsu authored
Wait for disabling all running kprobe handlers when a kprobe event is disabled, since the caller, trace_remove_event_call() supposes that a removing event is disabled completely by disabling the event. With this change, ftrace can ensure that there is no running event handlers after disabling it. Link: http://lkml.kernel.org/r/20130709093526.20138.93100.stgit@mhiramat-M0-7522Signed-off-by:
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
Every perf_trace_buf_prepare() caller does WARN_ONCE(size > PERF_MAX_TRACE_SIZE, message) and "message" is almost the same. Shift this WARN_ONCE() into perf_trace_buf_prepare(). This changes the meaning of _ONCE, but I think this is fine. - 4947014 2932448 10104832 17984294 1126b26 vmlinux + 4948422 2932448 10104832 17985702 11270a6 vmlinux on my build. Link: http://lkml.kernel.org/r/20130617170211.GA19813@redhat.comAcked-by:
Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
perf_trace_buf_prepare() + perf_trace_buf_submit(head, task => NULL) make no sense if hlist_empty(head). Change perf_syscall_enter/exit() to check sys_data->{enter,exit}_event->perf_events beforehand. Link: http://lkml.kernel.org/r/20130617170207.GA19806@redhat.comAcked-by:
Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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Oleg Nesterov authored
perf_trace_buf_prepare() + perf_trace_buf_submit(head, task => NULL) make no sense if hlist_empty(head). Change perf_ftrace_function_call() to check event_function.perf_events beforehand. Link: http://lkml.kernel.org/r/20130617170204.GA19803@redhat.comAcked-by:
Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Oleg Nesterov <oleg@redhat.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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zhangwei(Jovi) authored
There have some mismatch between comments with real function name, update it. This patch also add some missed function arguments description. Link: http://lkml.kernel.org/r/51E3B3B2.4080307@huawei.comSigned-off-by:
zhangwei(Jovi) <jovi.zhangwei@huawei.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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zhangwei(Jovi) authored
For string without format specifiers, use trace_seq_puts() or trace_seq_putc(). Link: http://lkml.kernel.org/r/51E3B3AC.1000605@huawei.comSigned-off-by:
zhangwei(Jovi) <jovi.zhangwei@huawei.com> [ fixed a trace_seq_putc(s, " ") to trace_seq_putc(s, ' ') ] Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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- 15 Jul, 2013 1 commit
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zhangwei(Jovi) authored
We should use CONFIG_STACK_TRACER to guard readme text of stack tracer related file, not CONFIG_STACKTRACE. Link: http://lkml.kernel.org/r/51E3B3A2.8080609@huawei.comSigned-off-by:
zhangwei(Jovi) <jovi.zhangwei@huawei.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org>
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- 14 Jul, 2013 15 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linuxLinus Torvalds authored
Pull slab update from Pekka Enberg: "Highlights: - Fix for boot-time problems on some architectures due to init_lock_keys() not respecting kmalloc_caches boundaries (Christoph Lameter) - CONFIG_SLUB_CPU_PARTIAL requested by RT folks (Joonsoo Kim) - Fix for excessive slab freelist draining (Wanpeng Li) - SLUB and SLOB cleanups and fixes (various people)" I ended up editing the branch, and this avoids two commits at the end that were immediately reverted, and I instead just applied the oneliner fix in between myself. * 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux slub: Check for page NULL before doing the node_match check mm/slab: Give s_next and s_stop slab-specific names slob: Check for NULL pointer before calling ctor() slub: Make cpu partial slab support configurable slab: add kmalloc() to kernel API documentation slab: fix init_lock_keys slob: use DIV_ROUND_UP where possible slub: do not put a slab to cpu partial list when cpu_partial is 0 mm/slub: Use node_nr_slabs and node_nr_objs in get_slabinfo mm/slub: Drop unnecessary nr_partials mm/slab: Fix /proc/slabinfo unwriteable for slab mm/slab: Sharing s_next and s_stop between slab and slub mm/slab: Fix drain freelist excessively slob: Rework #ifdeffery in slab.h mm, slab: moved kmem_cache_alloc_node comment to correct place
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Steven Rostedt authored
In the -rt kernel (mrg), we hit the following dump: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff811573f1>] kmem_cache_alloc_node+0x51/0x180 PGD a2d39067 PUD b1641067 PMD 0 Oops: 0000 [#1] PREEMPT SMP Modules linked in: sunrpc cpufreq_ondemand ipv6 tg3 joydev sg serio_raw pcspkr k8temp amd64_edac_mod edac_core i2c_piix4 e100 mii shpchp ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom sata_svw ata_generic pata_acpi pata_serverworks radeon ttm drm_kms_helper drm hwmon i2c_algo_bit i2c_core dm_mirror dm_region_hash dm_log dm_mod CPU 3 Pid: 20878, comm: hackbench Not tainted 3.6.11-rt25.14.el6rt.x86_64 #1 empty empty/Tyan Transport GT24-B3992 RIP: 0010:[<ffffffff811573f1>] [<ffffffff811573f1>] kmem_cache_alloc_node+0x51/0x180 RSP: 0018:ffff8800a9b17d70 EFLAGS: 00010213 RAX: 0000000000000000 RBX: 0000000001200011 RCX: ffff8800a06d8000 RDX: 0000000004d92a03 RSI: 00000000000000d0 RDI: ffff88013b805500 RBP: ffff8800a9b17dc0 R08: ffff88023fd14d10 R09: ffffffff81041cbd R10: 00007f4e3f06e9d0 R11: 0000000000000246 R12: ffff88013b805500 R13: ffff8801ff46af40 R14: 0000000000000001 R15: 0000000000000000 FS: 00007f4e3f06e700(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000a2d3a000 CR4: 00000000000007e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process hackbench (pid: 20878, threadinfo ffff8800a9b16000, task ffff8800a06d8000) Stack: ffff8800a9b17da0 ffffffff81202e08 ffff8800a9b17de0 000000d001200011 0000000001200011 0000000001200011 0000000000000000 0000000000000000 00007f4e3f06e9d0 0000000000000000 ffff8800a9b17e60 ffffffff81041cbd Call Trace: [<ffffffff81202e08>] ? current_has_perm+0x68/0x80 [<ffffffff81041cbd>] copy_process+0xdd/0x15b0 [<ffffffff810a2125>] ? rt_up_read+0x25/0x30 [<ffffffff8104369a>] do_fork+0x5a/0x360 [<ffffffff8107c66b>] ? migrate_enable+0xeb/0x220 [<ffffffff8100b068>] sys_clone+0x28/0x30 [<ffffffff81527423>] stub_clone+0x13/0x20 [<ffffffff81527152>] ? system_call_fastpath+0x16/0x1b Code: 89 fc 89 75 cc 41 89 d6 4d 8b 04 24 65 4c 03 04 25 48 ae 00 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 74 12 41 83 fe ff 74 27 <48> 8b 00 48 c1 e8 3a 41 39 c6 74 1b 8b 75 cc 4c 89 c9 44 89 f2 RIP [<ffffffff811573f1>] kmem_cache_alloc_node+0x51/0x180 RSP <ffff8800a9b17d70> CR2: 0000000000000000 ---[ end trace 0000000000000002 ]--- Now, this uses SLUB pretty much unmodified, but as it is the -rt kernel with CONFIG_PREEMPT_RT set, spinlocks are mutexes, although they do disable migration. But the SLUB code is relatively lockless, and the spin_locks there are raw_spin_locks (not converted to mutexes), thus I believe this bug can happen in mainline without -rt features. The -rt patch is just good at triggering mainline bugs ;-) Anyway, looking at where this crashed, it seems that the page variable can be NULL when passed to the node_match() function (which does not check if it is NULL). When this happens we get the above panic. As page is only used in slab_alloc() to check if the node matches, if it's NULL I'm assuming that we can say it doesn't and call the __slab_alloc() code. Is this a correct assumption? Acked-by:
Christoph Lameter <cl@linux.com> Signed-off-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Pekka Enberg <penberg@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull more vfs stuff from Al Viro: "O_TMPFILE ABI changes, Oleg's fput() series, misc cleanups, including making simple_lookup() usable for filesystems with non-NULL s_d_op, which allows us to get rid of quite a bit of ugliness" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: sunrpc: now we can just set ->s_d_op cgroup: we can use simple_lookup() now efivarfs: we can use simple_lookup() now make simple_lookup() usable for filesystems that set ->s_d_op configfs: don't open-code d_alloc_name() __rpc_lookup_create_exclusive: pass string instead of qstr rpc_create_*_dir: don't bother with qstr llist: llist_add() can use llist_add_batch() llist: fix/simplify llist_add() and llist_add_batch() fput: turn "list_head delayed_fput_list" into llist_head fs/file_table.c:fput(): add comment Safer ABI for O_TMPFILE
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
... and use d_hash_and_lookup() instead of open-coding it, for fsck sake... Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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Al Viro authored
just pass the name Signed-off-by:
Al Viro <viro@zeniv.linux.org.uk>
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git://cavan.codon.org.uk/platform-drivers-x86Linus Torvalds authored
Pull x86 platform driver updates from Matthew Garrett: "Nothing overly exciting here - a couple of new drivers that don't do a great deal, along with some miscellaneous fixes and a couple of small feature enablement patches" * 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86: x86 platform drivers: fix gpio leak toshiba_acpi: Add dependency on SERIO_I8042 asus-nb-wmi: set wapf=4 for ASUSTeK COMPUTER INC. 1015E/U Add trivial driver to disable Intel Smart Connect Add support driver for Intel Rapid Start Technology hp-wmi: add supports for POST code error asus-wmi: control wlan-led only if wapf == 4 drivers/platform/x86/intel_ips: Convert to module_pci_driver asus-nb-wmi: ignore ALS notification key code asus-wmi: append newline to messages x86: asus-laptop: fix invalid point access x86: msi-laptop: fix memleak amilo-rfkill: Add dependency on SERIO_I8042 dell-laptop: fix error return code in dell_init() hp-wmi: Enable hotkeys on some systems
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull second round of input updates from Dmitry Torokhov: "An update to Elantech driver to support hardware v7, fix to the new cyttsp4 driver to use proper addressing, ads7846 device tree support and nspire-keypad got a small cleanup." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: nspire-keypad - replace magic offset with define Input: elantech - fix for newer hardware versions (v7) Input: cyttsp4 - use 16bit address for I2C/SPI communication Input: ads7846 - add device tree bindings Input: ads7846 - make sure we do not change platform data
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: "Just a bunch of small fixes and tidy ups: 1) Finish the "busy_poll" renames, from Eliezer Tamir. 2) Fix RCU stalls in IFB driver, from Ding Tianhong. 3) Linearize buffers properly in tun/macvtap zerocopy code. 4) Don't crash on rmmod in vxlan, from Pravin B Shelar. 5) Spinlock used before init in alx driver, from Maarten Lankhorst. 6) A sparse warning fix in bnx2x broke TSO checksums, fix from Dmitry Kravkov. 7) Dummy and ifb driver load failure paths can oops, fixes from Tan Xiaojun and Ding Tianhong. 8) Correct MTU calculations in IP tunnels, from Alexander Duyck. 9) Account all TCP retransmits in SNMP stats properly, from Yuchung Cheng. 10) atl1e and via-rhine do not handle DMA mapping failures properly, from Neil Horman. 11) Various equal-cost multipath route fixes in ipv6 from Hannes Frederic Sowa" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (36 commits) ipv6: only static routes qualify for equal cost multipathing via-rhine: fix dma mapping errors atl1e: fix dma mapping warnings tcp: account all retransmit failures usb/net/r815x: fix cast to restricted __le32 usb/net/r8152: fix integer overflow in expression net: access page->private by using page_private net: strict_strtoul is obsolete, use kstrtoul instead drivers/net/ieee802154: don't use devm_pinctrl_get_select_default() in probe drivers/net/ethernet/cadence: don't use devm_pinctrl_get_select_default() in probe drivers/net/can/c_can: don't use devm_pinctrl_get_select_default() in probe net/usb: add relative mii functions for r815x net/tipc: use %*phC to dump small buffers in hex form qlcnic: Adding Maintainers. gre: Fix MTU sizing check for gretap tunnels pkt_sched: sch_qfq: remove forward declaration of qfq_update_agg_ts pkt_sched: sch_qfq: improve efficiency of make_eligible gso: Update tunnel segmentation to support Tx checksum offload inet: fix spacing in assignment ifb: fix oops when loading the ifb failed ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull final round of SCSI updates from James Bottomley: "This is the remaining set of SCSI patches for the merge window. It's mostly driver updates (scsi_debug, qla2xxx, storvsc, mp3sas). There are also several bug fixes in fcoe, libfc, and megaraid_sas. We also have a couple of core changes to try to make device destruction more deterministic" * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (46 commits) [SCSI] scsi constants: command, sense key + additional sense strings fcoe: Reduce number of sparse warnings fcoe: Stop fc_rport_priv structure leak libfcoe: Fix meaningless log statement libfc: Differentiate echange timer cancellation debug statements libfc: Remove extra space in fc_exch_timer_cancel definition fcoe: fix the link error status block sparse warnings fcoe: Fix smatch warning in fcoe_fdmi_info function libfc: Reject PLOGI from nodes with incompatible role [SCSI] enable destruction of blocked devices which fail LUN scanning [SCSI] Fix race between starved list and device removal [SCSI] megaraid_sas: fix a bug for 64 bit arches [SCSI] scsi_debug: reduce duplication between prot_verify_read and prot_verify_write [SCSI] scsi_debug: simplify offset calculation for dif_storep [SCSI] scsi_debug: invalidate protection info for unmapped region [SCSI] scsi_debug: fix NULL pointer dereference with parameters dif=0 dix=1 [SCSI] scsi_debug: fix incorrectly nested kmap_atomic() [SCSI] scsi_debug: fix invalid address passed to kunmap_atomic() [SCSI] mpt3sas: Bump driver version to v02.100.00.00 [SCSI] mpt3sas: when async scanning is enabled then while scanning, devices are removed but their transport layer entries are not removed ...
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- 13 Jul, 2013 2 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Thomas Gleixner: "Fix a potential deadlock versus hrtimers" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix HRTICK
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq updates from Thomas Gleixner: - core fix for missing round up in the generic irq chip implementation - new irq chip for MOXA SoCs - a few fixes and cleanups in the irqchip drivers * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: Add support for MOXA ART SoCs genirq: generic chip: Use DIV_ROUND_UP to calculate numchips irqchip: nvic: Fix wrong num_ct argument for irq_alloc_domain_generic_chips() irqchip: sun4i: Staticize sun4i_irq_ack() irqchip: vt8500: Staticize local symbols
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