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authorMasami Hiramatsu <mhiramat@kernel.org>2016-06-08 12:29:11 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-06-14 15:29:54 +0300
commit2a1ef032cfccd8c92f32b86615a0b0151a7cd86f (patch)
tree16028ea560619381c524f0d6e29d80b53d5b4fc9 /tools/perf/util/util.c
parent826424cc919529d6d234af12c6ba975b63528a74 (diff)
downloadlinux-2a1ef032cfccd8c92f32b86615a0b0151a7cd86f.tar.xz
perf tools: Fix rm_rf() to handle non-regular files correctly
Fix rm_rf() to handle non-regular files correctly. This fix includes two changes; - Fix to use lstat(3) instead of stat(3) since if the target file is a symbolic link, rm_rf() should unlink the symbolic link itself, not the file which pointed by the symlink. - Fix to unlink non-regular files (except for directory), including symlink. Even though the first one fixes to stat symlink itself, without second fix, it still failed because the symlink is not a regular file. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Brendan Gregg <brendan.d.gregg@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20160608092911.3116.90929.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/util.c')
-rw-r--r--tools/perf/util/util.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 23504ad5d6dd..e08b9a092a23 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -97,20 +97,17 @@ int rm_rf(char *path)
scnprintf(namebuf, sizeof(namebuf), "%s/%s",
path, d->d_name);
- ret = stat(namebuf, &statbuf);
+ /* We have to check symbolic link itself */
+ ret = lstat(namebuf, &statbuf);
if (ret < 0) {
pr_debug("stat failed: %s\n", namebuf);
break;
}
- if (S_ISREG(statbuf.st_mode))
- ret = unlink(namebuf);
- else if (S_ISDIR(statbuf.st_mode))
+ if (S_ISDIR(statbuf.st_mode))
ret = rm_rf(namebuf);
- else {
- pr_debug("unknown file: %s\n", namebuf);
- ret = -1;
- }
+ else
+ ret = unlink(namebuf);
}
closedir(dir);