Vikram Mulukutla f77fc6971c tracing: Fix unmapping loop in tracing_mark_write ...

commit 7215853e98 upstream.

Commit 6edb2a8a38 introduced
an array map_pages that contains the addresses returned by
kmap_atomic. However, when unmapping those pages, map_pages[0]
is unmapped before map_pages[1], breaking the nesting requirement
as specified in the documentation for kmap_atomic/kunmap_atomic.

This was caught by the highmem debug code present in kunmap_atomic.
Fix the loop to do the unmapping properly.

Link: http://lkml.kernel.org/r/1418871056-6614-1-git-send-email-markivx@codeaurora.org

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Reported-by: Lime Yang <limey@codeaurora.org>
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-03-06 14:43:28 -08:00

..

blktrace.c

blktrace: fix accounting of partially completed requests

2014-05-31 13:20:28 -07:00

ftrace.c

tracing: Fix graph tracer with stack tracer on other archs

2014-07-28 08:05:57 -07:00

Kconfig

…

Makefile

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power-traces.c

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ring_buffer_benchmark.c

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ring_buffer.c

ring-buffer: Fix infinite spin in reading buffer

2014-10-09 12:21:27 -07:00

rpm-traces.c

…

trace_branch.c

…

trace_clock.c

tracing: Fix wraparound problems in "uptime" trace clock

2014-07-31 12:52:55 -07:00

trace_entries.h

…

trace_event_perf.c

…

trace_events_filter_test.h

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trace_events_filter.c

tracing: Add and use generic set_trigger_filter() implementation

2013-12-21 22:02:17 -05:00

trace_events_trigger.c

tracing: Use rcu_dereference_sched() for trace event triggers

2014-05-31 13:20:30 -07:00

trace_events.c

tracing: instance_rmdir() leaks ftrace_event_file->filter

2014-07-28 08:05:57 -07:00

trace_export.c

tracing: Fix array size mismatch in format string

2014-03-20 13:21:05 -04:00

trace_functions_graph.c

…

trace_functions.c

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trace_irqsoff.c

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trace_kdb.c

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trace_kprobe.c

tracing: Consolidate event trigger code

2014-01-09 21:20:07 -05:00

trace_mmiotrace.c

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trace_nop.c

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trace_output.c

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trace_output.h

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trace_printk.c

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trace_probe.c

tracing/uprobes: Add @+file_offset fetch method

2014-01-02 20:57:05 -05:00

trace_probe.h

tracing/probes: Fix build break on !CONFIG_KPROBE_EVENT

2014-01-03 15:27:18 -05:00

trace_sched_switch.c

…

trace_sched_wakeup.c

sched/deadline: Add SCHED_DEADLINE inheritance logic

2014-01-13 13:42:56 +01:00

trace_selftest_dynamic.c

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trace_selftest.c

sched/deadline: Add latency tracing for SCHED_DEADLINE tasks

2014-01-13 13:41:11 +01:00

trace_stack.c

tracing: Add generic tracing_lseek() function

2014-01-02 16:17:12 -05:00

trace_stat.c

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trace_stat.h

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trace_syscalls.c

tracing/syscalls: Ignore numbers outside NR_syscalls' range

2014-11-14 08:59:42 -08:00

trace_uprobe.c

tracing/uprobes: Fix uprobe_cpu_buffer memory leak

2014-05-31 13:20:29 -07:00

trace.c

tracing: Fix unmapping loop in tracing_mark_write

2015-03-06 14:43:28 -08:00

trace.h

ring-buffer: Check if buffer exists before polling

2014-07-17 16:21:06 -07:00