#ifndef __CGROUP_HELPERS_H #define __CGROUP_HELPERS_H #include #include #define clean_errno() (errno == 0 ? "None" : strerror(errno)) #define log_err(MSG, ...) fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \ __FILE__, __LINE__, clean_errno(), ##__VA_ARGS__) int create_and_get_cgroup(char *path); int join_cgroup(char *path); int setup_cgroup_environment(void); void cleanup_cgroup_environment(void); #endif ://git.distanz.ch/linux/net-next.git' title='net-next.git Git repository'/>
summaryrefslogtreecommitdiff
path: root/tools/perf/ui
diff options
context:
space:
mode:
authorJan Kara <jack@suse.cz>2016-08-10 17:22:44 +0200
committerDan Williams <dan.j.williams@intel.com>2016-12-26 20:29:24 -0800
commitc6dcf52c23d2d3fb5235cec42d7dd3f786b87d55 (patch)
tree7e63a6c0225a769e679b194f54b5723e4cfba385 /tools/perf/ui
parente568df6b84ff05a22467503afc11bee7a6ba0700 (diff)
mm: Invalidate DAX radix tree entries only if appropriate
Currently invalidate_inode_pages2_range() and invalidate_mapping_pages() just delete all exceptional radix tree entries they find. For DAX this is not desirable as we track cache dirtiness in these entries and when they are evicted, we may not flush caches although it is necessary. This can for example manifest when we write to the same block both via mmap and via write(2) (to different offsets) and fsync(2) then does not properly flush CPU caches when modification via write(2) was the last one. Create appropriate DAX functions to handle invalidation of DAX entries for invalidate_inode_pages2_range() and invalidate_mapping_pages() and wire them up into the corresponding mm functions. Acked-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/perf/ui')