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perf header: Add struct feat_fd for write

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Introduce struct feat_fd. This patch uses it as a wrapper around fd in
write_* functions for feature headers. Next patches will extend its
functionality to other feature header functions.

This patch does not change behavior.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Simon Que <sque@chromium.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/20170718042549.145161-7-davidcc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
David Carrillo-Cisneros
2017-07-17 21:25:39 -07:00
committed by Arnaldo Carvalho de Melo
parent 3b8f51a677
commit ccebbeb6b6
4 changed files with 138 additions and 111 deletions
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8
tools/perf/util/build-id.c
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@@ -289,7 +289,7 @@ char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size,
else
static int write_buildid(const char *name, size_t name_len, u8 *build_id,
pid_t pid, u16 misc, int fd)
pid_t pid, u16 misc, struct feat_fd *fd)
{
int err;
struct build_id_event b;
@@ -311,7 +311,8 @@ static int write_buildid(const char *name, size_t name_len, u8 *build_id,
return write_padded(fd, name, name_len + 1, len);
}
static int machine__write_buildid_table(struct machine *machine, int fd)
static int machine__write_buildid_table(struct machine *machine,
struct feat_fd *fd)
{
int err = 0;
char nm[PATH_MAX];
@@ -356,7 +357,8 @@ static int machine__write_buildid_table(struct machine *machine, int fd)
return err;
}
int perf_session__write_buildid_table(struct perf_session *session, int fd)
int perf_session__write_buildid_table(struct perf_session *session,
struct feat_fd *fd)
{
struct rb_node *nd;
int err = machine__write_buildid_table(&session->machines.host, fd);