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authorJiri Olsa <jolsa@kernel.org>2018-08-17 12:48:08 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2018-08-20 14:54:59 +0300
commitdde755a90e98a1c57f6a92d1a79bc5554024065c (patch)
tree68c03125b2b87d807a98da6b4a020dd310af1ee3 /tools/perf
parent2af5247530e073f4146d74ecd96cf64c953c001c (diff)
downloadlinux-dde755a90e98a1c57f6a92d1a79bc5554024065c.tar.xz
perf tools: Use compression id in decompress_kmodule()
Once we parsed out the compression ID, we dont need to iterate all available compressions and we can call it directly. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180817094813.15086-9-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r--tools/perf/util/dso.c24
1 files changed, 3 insertions, 21 deletions
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index d875e6956a3e..54bfe1f4762f 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -244,18 +244,6 @@ bool is_kernel_module(const char *pathname, int cpumode)
return m.kmod;
}
-static bool decompress_to_file(const char *ext, const char *filename, int output_fd)
-{
- unsigned i;
-
- for (i = 0; compressions[i].fmt; i++) {
- if (!strcmp(ext, compressions[i].fmt))
- return !compressions[i].decompress(filename,
- output_fd);
- }
- return false;
-}
-
bool dso__needs_decompress(struct dso *dso)
{
return dso->symtab_type == DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE_COMP ||
@@ -265,31 +253,25 @@ bool dso__needs_decompress(struct dso *dso)
static int decompress_kmodule(struct dso *dso, const char *name, char *tmpbuf)
{
int fd = -1;
- struct kmod_path m;
if (!dso__needs_decompress(dso))
return -1;
- if (kmod_path__parse_ext(&m, dso->long_name))
+ if (dso->comp == COMP_ID__NONE)
return -1;
- if (!m.comp)
- goto out;
-
fd = mkstemp(tmpbuf);
if (fd < 0) {
dso->load_errno = errno;
- goto out;
+ return -1;
}
- if (!decompress_to_file(m.ext, name, fd)) {
+ if (compressions[dso->comp].decompress(name, fd)) {
dso->load_errno = DSO_LOAD_ERRNO__DECOMPRESSION_FAILURE;
close(fd);
fd = -1;
}
-out:
- free(m.ext);
return fd;
}