Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.80 2019-10-15T15:05:18+00:00 2019-10-15T15:05:18+00:00 Adrian Hunter adrian.hunter@intel.com 2019-10-07T07:02:21+00:00 urn:sha1:5a0baf5123236362fda4e9772cc63b7faa16a0df slow_copyfile() opens the file by name, so "write" permissions must not be removed in copyfile_mode_ns() before calling slow_copyfile(). Example: Before: $ sudo chmod +r /proc/kcore $ sudo setcap "cap_sys_admin,cap_sys_ptrace,cap_syslog,cap_sys_rawio=ep" tools/perf/perf $ tools/perf/perf buildid-cache -k /proc/kcore Couldn't add /proc/kcore After: $ sudo chmod +r /proc/kcore $ sudo setcap "cap_sys_admin,cap_sys_ptrace,cap_syslog,cap_sys_rawio=ep" tools/perf/perf $ tools/perf/perf buildid-cache -v -k /proc/kcore kcore added to build-id cache directory /home/ahunter/.debug/[kernel.kcore]/37e340b1b5a7cf4f57ba8de2bc777359588a957f/2019100709562289 Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Link: http://lore.kernel.org/lkml/20191007070221.11158-1-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> 2019-09-25T12:51:49+00:00 Arnaldo Carvalho de Melo acme@redhat.com 2019-09-24T18:14:12+00:00 urn:sha1:32ff3fec07b6d8e6c5cc2342f6cbbdcb224d484c Further reducing the util.c hodgepodge files. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-0i62zh7ok25znibyebgq0qs4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>