Vikram Mulukutla 7215853e98 tracing: Fix unmapping loop in tracing_mark_write ...

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

Cc: stable@vger.kernel.org # 3.5+
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>

2015-02-09 18:47:09 -05:00

..

blktrace.c

Merge branch 'for-3.19/core' of git://git.kernel.dk/linux-block

2014-12-13 14:14:23 -08:00

ftrace.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

Kconfig

tracing: Remove function_trace_stop and HAVE_FUNCTION_TRACE_MCOUNT_TEST

2014-07-18 13:58:12 -04:00

Makefile

tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM

2014-12-13 02:23:30 +01:00

power-traces.c

…

ring_buffer_benchmark.c

trace: Use 64-bit timekeeping

2015-01-28 11:02:05 -05:00

ring_buffer.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

rpm-traces.c

…

trace_benchmark.c

tracing: Only calculate stats of tracepoint benchmarks for 2^32 times

2014-06-06 00:41:38 -04:00

trace_benchmark.h

tracing: Add tracepoint benchmark tracepoint

2014-05-29 22:49:54 -04:00

trace_branch.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_clock.c

tracing: Fix wraparound problems in "uptime" trace clock

2014-07-21 09:56:12 -04:00

trace_entries.h

…

trace_event_perf.c

perf: Check permission only for parent tracepoint event

2014-07-28 10:01:38 +02:00

trace_events_filter_test.h

…

trace_events_filter.c

tracing: Allow NOT to filter AND and OR clauses

2014-12-03 10:00:27 -05:00

trace_events_trigger.c

trace: Replace single-character seq_puts with seq_putc

2014-11-14 07:55:55 -05:00

trace_events.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_export.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_functions_graph.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_functions.c

tracing/trivial: Fix typos and make an int into a bool

2014-11-20 10:05:36 -05:00

trace_irqsoff.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_kdb.c

tracing: kdb: Fix kernel livelock with empty buffers

2014-11-13 21:27:25 -05:00

trace_kprobe.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_mmiotrace.c

tracing: Do not check return values of trace_seq_p*() for mmio tracer

2014-11-19 15:25:44 -05:00

trace_nop.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_output.c

tracing: Add array printing helper

2015-01-28 10:34:47 -05:00

trace_output.h

tracing: Add trace_seq_has_overflowed() and trace_handle_return()

2014-11-19 15:25:39 -05:00

trace_printk.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_probe.c

tracing/probes: Do not use return value of trace_seq_printf()

2014-11-19 15:25:44 -05:00

trace_probe.h

kprobes, ftrace: Use NOKPROBE_SYMBOL macro in ftrace

2014-04-24 10:26:39 +02:00

trace_sched_switch.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_sched_wakeup.c

tracing: Remove unneeded includes of debugfs.h and fs.h

2015-01-22 11:19:48 -05:00

trace_selftest_dynamic.c

…

trace_selftest.c

Merge tag 'trace-3.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-10-12 07:28:55 -04:00

trace_seq.c

tracing: Use trace_seq_used() and seq_buf_used() instead of len

2014-11-19 22:01:15 -05:00

trace_stack.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_stat.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace_stat.h

…

trace_syscalls.c

Merge tag 'trace-3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2014-12-16 12:53:59 -08:00

trace_uprobe.c

tracing: Use IS_ERR() check for return value of tracing_init_dentry()

2015-01-22 11:19:49 -05:00

trace.c

tracing: Fix unmapping loop in tracing_mark_write

2015-02-09 18:47:09 -05:00

trace.h

tracing: Make tracing_init_dentry_tr() static

2015-02-02 10:22:23 -05:00