From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752655AbeDQEOV (ORCPT ); Tue, 17 Apr 2018 00:14:21 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:38138 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1750802AbeDQEOT (ORCPT ); Tue, 17 Apr 2018 00:14:19 -0400 From: Ravi Bangoria To: mhiramat@kernel.org, jolsa@redhat.com, acme@redhat.com Cc: kstewart@linuxfoundation.org, tglx@linutronix.de, pombredanne@nexb.com, linux-kernel@vger.kernel.org, peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, namhyung@kernel.org, uneedsihyeon@gmail.com, kjlx@templeofstupid.com, Ravi Bangoria Subject: [PATCH v2 3/3] perf/buildid-cache: Support --purge-all option Date: Tue, 17 Apr 2018 09:43:46 +0530 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180417041346.5617-1-ravi.bangoria@linux.vnet.ibm.com> References: <20180417041346.5617-1-ravi.bangoria@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18041704-0044-0000-0000-00000548FF83 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18041704-0045-0000-0000-000028890AC2 Message-Id: <20180417041346.5617-4-ravi.bangoria@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-17_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1804170039 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org User can remove files from cache using --remove/--purge options but both needs list of files as an argument. It's not convenient when you want to flush out entire cache. Add an option to purge all files from cache. Ex, # perf buildid-cache -l 8a86ef73e44067bca52cc3f6cd3e5446c783391c /tmp/a.out ebe71fdcf4b366518cc154d570a33cd461a51c36 /tmp/a.out.1 # perf buildid-cache -P -v Removing /tmp/a.out (8a86ef73e44067bca52cc3f6cd3e5446c783391c): Ok Removing /tmp/a.out.1 (ebe71fdcf4b366518cc154d570a33cd461a51c36): Ok Purged all: Ok Signed-off-by: Ravi Bangoria --- tools/perf/Documentation/perf-buildid-cache.txt | 3 +++ tools/perf/builtin-buildid-cache.c | 36 ++++++++++++++++++++++++- 2 files changed, 38 insertions(+), 1 deletion(-) diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt index 3f285ba6e1f9..f6de0952ff3c 100644 --- a/tools/perf/Documentation/perf-buildid-cache.txt +++ b/tools/perf/Documentation/perf-buildid-cache.txt @@ -48,6 +48,9 @@ OPTIONS --purge=:: Purge all cached binaries including older caches which have specified path from the cache. +-P:: +--purge-all:: + Purge all cached binaries. This will flush out entire cache. -M:: --missing=:: List missing build ids in the cache for the specified file. diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c index fd0a08661b42..d11226f76fbc 100644 --- a/tools/perf/builtin-buildid-cache.c +++ b/tools/perf/builtin-buildid-cache.c @@ -240,6 +240,34 @@ static int build_id_cache__purge_path(const char *pathname, struct nsinfo *nsi) return err; } +static int build_id_cache__purge_all(void) +{ + struct strlist *list; + struct str_node *pos; + int err; + char *buf; + + list = build_id_cache__list_all(false); + if (!list) { + pr_debug("Failed to get buildids: -%d\n", errno); + return -EINVAL; + } + + strlist__for_each_entry(pos, list) { + buf = build_id_cache__origname(pos->s); + err = build_id_cache__remove_s(pos->s); + pr_debug("Removing %s (%s): %s\n", buf, pos->s, + err ? "FAIL" : "Ok"); + free(buf); + if (err) + break; + } + strlist__delete(list); + + pr_debug("Purged all: %s\n", err ? "FAIL" : "Ok"); + return err; +} + static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused) { char filename[PATH_MAX]; @@ -327,6 +355,7 @@ int cmd_buildid_cache(int argc, const char **argv) bool force = false; bool list_files = false; bool opts_flag = false; + bool purge_all = false; char const *add_name_list_str = NULL, *remove_name_list_str = NULL, *purge_name_list_str = NULL, @@ -350,6 +379,7 @@ int cmd_buildid_cache(int argc, const char **argv) "file(s) to remove"), OPT_STRING('p', "purge", &purge_name_list_str, "file list", "file(s) to remove (remove old caches too)"), + OPT_BOOLEAN('P', "purge-all", &purge_all, "purge all cached files"), OPT_BOOLEAN('l', "list", &list_files, "list all cached files"), OPT_STRING('M', "missing", &missing_filename, "file", "to find missing build ids in the cache"), @@ -370,7 +400,8 @@ int cmd_buildid_cache(int argc, const char **argv) opts_flag = add_name_list_str || kcore_filename || remove_name_list_str || purge_name_list_str || - missing_filename || update_name_list_str; + missing_filename || update_name_list_str || + purge_all; if (argc || !(list_files || opts_flag)) usage_with_options(buildid_cache_usage, buildid_cache_options); @@ -457,6 +488,9 @@ int cmd_buildid_cache(int argc, const char **argv) } } + if (purge_all) + ret = build_id_cache__purge_all(); + if (missing_filename) ret = build_id_cache__fprintf_missing(session, stdout); -- 2.14.3