#ifndef __PERF_TESTS__HISTS_COMMON_H__
#define __PERF_TESTS__HISTS_COMMON_H__
struct machine;
struct machines;
#define FAKE_PID_PERF1 100
#define FAKE_PID_PERF2 200
#define FAKE_PID_BASH 300
#define FAKE_MAP_PERF 0x400000
#define FAKE_MAP_BASH 0x400000
#define FAKE_MAP_LIBC 0x500000
#define FAKE_MAP_KERNEL 0xf00000
#define FAKE_MAP_LENGTH 0x100000
#define FAKE_SYM_OFFSET1 700
#define FAKE_SYM_OFFSET2 800
#define FAKE_SYM_OFFSET3 900
#define FAKE_SYM_LENGTH 100
#define FAKE_IP_PERF_MAIN FAKE_MAP_PERF + FAKE_SYM_OFFSET1
#define FAKE_IP_PERF_RUN_COMMAND FAKE_MAP_PERF + FAKE_SYM_OFFSET2
#define FAKE_IP_PERF_CMD_RECORD FAKE_MAP_PERF + FAKE_SYM_OFFSET3
#define FAKE_IP_BASH_MAIN FAKE_MAP_BASH + FAKE_SYM_OFFSET1
#define FAKE_IP_BASH_XMALLOC FAKE_MAP_BASH + FAKE_SYM_OFFSET2
#define FAKE_IP_BASH_XFREE FAKE_MAP_BASH + FAKE_SYM_OFFSET3
#define FAKE_IP_LIBC_MALLOC FAKE_MAP_LIBC + FAKE_SYM_OFFSET1
#define FAKE_IP_LIBC_FREE FAKE_MAP_LIBC + FAKE_SYM_OFFSET2
#define FAKE_IP_LIBC_REALLOC FAKE_MAP_LIBC + FAKE_SYM_OFFSET3
#define FAKE_IP_KERNEL_SCHEDULE FAKE_MAP_KERNEL + FAKE_SYM_OFFSET1
#define FAKE_IP_KERNEL_PAGE_FAULT FAKE_MAP_KERNEL + FAKE_SYM_OFFSET2
#define FAKE_IP_KERNEL_SYS_PERF_EVENT_OPEN FAKE_MAP_KERNEL + FAKE_SYM_OFFSET3
/*
* The setup_fake_machine() provides a test environment which consists
* of 3 processes that have 3 mappings and in turn, have 3 symbols
* respectively. See below table:
*
* Command: Pid Shared Object Symbol
* ............. ............. ...................
* perf: 100 perf main
* perf: 100 perf run_command
* perf: 100 perf cmd_record
* perf: 100 libc malloc
* perf: 100 libc free
* perf: 100 libc realloc
* perf: 100 [kernel] schedule
* perf: 100 [kernel] page_fault
* perf: 100 [kernel] sys_perf_event_open
* perf: 200 perf main
* perf: 200 perf run_command
* perf: 200 perf cmd_record
* perf: 200 libc malloc
* perf: 200 libc free
* perf: 200 libc realloc
* perf: 200 [kernel] schedule
* perf: 200 [kernel] page_fault
* perf: 200 [kernel] sys_perf_event_open
* bash: 300 bash main
* bash: 300 bash xmalloc
* bash: 300 bash xfree
* bash: 300 libc malloc
* bash: 300 libc free
* bash: 300 libc realloc
* bash: 300 [kernel] schedule
* bash: 300 [kernel] page_fault
* bash: 300 [kernel] sys_perf_event_open
*/
struct machine *setup_fake_machine(struct machines *machines);
void print_hists_in(struct hists *hists);
void print_hists_out(struct hists *hists);
#endif /* __PERF_TESTS__HISTS_COMMON_H__ */
orm>
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull DAX updates from Dan Williams:
"The completion of Jan's DAX work for 4.10.
As I mentioned in the libnvdimm-for-4.10 pull request, these are some
final fixes for the DAX dirty-cacheline-tracking invalidation work
that was merged through the -mm, ext4, and xfs trees in -rc1. These
patches were prepared prior to the merge window, but we waited for
4.10-rc1 to have a stable merge base after all the prerequisites were
merged.
Quoting Jan on the overall changes in these patches:
"So I'd like all these 6 patches to go for rc2. The first three
patches fix invalidation of exceptional DAX entries (a bug which
is there for a long time) - without these patches data loss can
occur on power failure even though user called fsync(2). The other
three patches change locking of DAX faults so that ->iomap_begin()
is called in a more relaxed locking context and we are safe to
start a transaction there for ext4"
These have received a build success notification from the kbuild
robot, and pass the latest libnvdimm unit tests. There have not been
any -next releases since -rc1, so they have not appeared there"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
ext4: Simplify DAX fault path
dax: Call ->iomap_begin without entry lock during dax fault
dax: Finish fault completely when loading holes
dax: Avoid page invalidation races and unnecessary radix tree traversals
mm: Invalidate DAX radix tree entries only if appropriate
ext2: Return BH_New buffers for zeroed blocks