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e24c7520ea
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Wang Nan e24c7520ea perf tools: Support reading from backward ring buffer 
perf_evlist__mmap_read_backward() is introduced for reading backward
ring buffer. Since direction for reading such ring buffer is different
from the direction kernel writing to it, and since user need to fetch
most recent record from it, a perf_evlist__mmap_read_catchup() is
introduced to move the reading pointer to the end of the buffer.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1462758471-89706-2-git-send-email-wangnan0@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-05-09 17:20:53 -03:00
..
arch
build bpf tools: Fix syscall argument 2016-04-28 09:58:57 -03:00
cgroup
firewire
gpio gpio: present the consumer of a line to userspace 2016-02-25 21:07:23 +01:00
hv tools/hv: Use include/uapi with __EXPORTED_HEADERS__ 2016-02-07 21:34:12 -08:00
iio
include Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 10:02:14 -07:00
laptop/freefall
lguest
lib tools lib api fs: Add helper to read string from procfs file 2016-04-26 13:15:00 -03:00
net tools, bpf_asm: simplify parser rule for BPF extensions 2016-02-22 13:29:42 -05:00
nfsd
objtool objtool: Detect falling through to the next function 2016-04-16 11:14:17 +02:00
perf perf tools: Support reading from backward ring buffer 2016-05-09 17:20:53 -03:00
power Merge branches 'pm-core', 'powercap' and 'pm-tools' 2016-04-08 21:46:56 +02:00
scripts tools: Move utilities.mak from perf to tools/scripts/ 2016-03-18 13:57:20 -03:00
spi spi: spidev_test: Fix typo in error message 2015-12-08 17:58:56 +00:00
testing soreuseport: test mixed v4/v6 sockets 2016-04-14 21:14:04 -04:00
thermal/tmon
time
usb usb: patches for v4.4 merge window 2015-10-22 17:19:33 -07:00
virtio virtio_ring: Support DMA APIs 2016-03-02 17:01:57 +02:00
vm tools/vm/page-types.c: avoid memset() in walk_pfn() when count == 1 2016-03-17 15:09:34 -07:00
Makefile tools build: Fix perf_clean target 2016-04-25 17:59:36 -03:00