Oleg Nesterov 3ea2f2b96f perf: Do not waste PAGE_SIZE bytes for ALIGN(8) in perf_event_mmap_event() ... perf_event_mmap_event() does kzalloc(PATH_MAX + sizeof(u64)) to ensure we can align the size later. However this means that we actually allocate PAGE_SIZE * 2 buffer, seems too much. Change this code to allocate PATH_MAX==PAGE_SIZE bytes, but tell d_path() to not use the last sizeof(u64) bytes. Note: it is not clear why do we need __GFP_ZERO, see the next patch. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20131016201004.GC23214@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2013-10-29 12:02:52 +01:00
..
callchain.c	perf: Roll back callchain buffer refcount under the callchain mutex	2013-08-16 17:55:50 +02:00
core.c	perf: Do not waste PAGE_SIZE bytes for ALIGN(8) in perf_event_mmap_event()	2013-10-29 12:02:52 +01:00
hw_breakpoint.c	hw_breakpoint: Introduce "struct bp_cpuinfo"	2013-06-20 17:58:57 +02:00
internal.h	perf: Fix mmap() accounting hole	2013-06-19 12:44:13 +02:00
Makefile	uprobes: Move to kernel/events/	2012-02-22 11:08:00 +01:00
ring_buffer.c	perf: Fix vmalloc ring buffer pages handling	2013-05-01 12:34:46 +02:00
uprobes.c	uprobes: Fix utask->depth accounting in handle_trampoline()	2013-09-12 08:00:55 +02:00