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authorAdrian Hunter <[email protected]>2019-10-07 10:02:21 +0300
committerArnaldo Carvalho de Melo <[email protected]>2019-10-15 12:05:18 -0300
commit5a0baf5123236362fda4e9772cc63b7faa16a0df (patch)
tree613553545de11d225af3f73f59393e2b347516cb /tools/perf/scripts/python/Perf-Trace-Util/Context.c
parentf948eb45e3af9fb18a0487d0797a773897ef6929 (diff)
perf tools: Fix mode setting in copyfile_mode_ns()
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 <[email protected]> Acked-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Link: http://lore.kernel.org/lkml/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/Context.c')
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