[PATCH v3 0/2] timer_list: Fix /proc/timer_list failure on 4096 cpus

[Nathan Zimmer]

On systems with 4096 cores attemping to read /proc/timer_list
fails because we are trying to push all the data into a single
kmalloc buffer.

A better solution is to not us the single_open mechanism but to
provide our own seq_operations and treat each cpu as an
individual record.

The output should be identical to the previous version.

v2: Added comments on the iteration and other fixups pointed to by Andrew.
v3: Corrected the case where max_cpus != nr_cpu_ids by exiting early.

Nathan Zimmer (2):
  timer_list: split timer_list_show_tickdevices()
  timer_list: convert timer list to be a proper seq_file

 kernel/time/timer_list.c | 111 +++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 92 insertions(+), 19 deletions(-)

-- 
1.8.1.2

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