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libperf: Add flags to fdarray fds objects

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Store flags per struct pollfd *entries object in a bitmap of int size.

Implement fdarray_flag__nonfilterable flag to skip object from counting
by fdarray__filter().

Fixed fdarray test issue reported by kernel test robot.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Alexey Budankov <alexey.budankov@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/6b7d43ff-0801-d5dd-4e90-fcd86b17c1c8@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Alexey Budankov 2020-07-17 09:59:45 +03:00 • committed by Arnaldo Carvalho de Melo
parent 59b4412f27
commit ab4c1f9f68
6 changed files with 25 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

16
tools/lib/api/fd/array.h
View file

@ -21,19 +21,27 @@ struct fdarray {
int nr_alloc;
int nr_autogrow;
struct pollfd *entries;
union {
int idx;
void *ptr;
struct priv {
union {
int idx;
void *ptr;
};
unsigned int flags;
} *priv;
};
enum fdarray_flags {
fdarray_flag__default = 0x00000000,
fdarray_flag__nonfilterable = 0x00000001
};
void fdarray__init(struct fdarray *fda, int nr_autogrow);
void fdarray__exit(struct fdarray *fda);
struct fdarray *fdarray__new(int nr_alloc, int nr_autogrow);
void fdarray__delete(struct fdarray *fda);
int fdarray__add(struct fdarray *fda, int fd, short revents);
int fdarray__add(struct fdarray *fda, int fd, short revents, enum fdarray_flags flags);
int fdarray__poll(struct fdarray *fda, int timeout);
int fdarray__filter(struct fdarray *fda, short revents,
void (*entry_destructor)(struct fdarray *fda, int fd, void *arg),