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authorOleg Nesterov <oleg@redhat.com>2012-10-05 04:15:25 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-05 22:05:15 +0400
commit12a2b4b2241e318b4f6df31228e4272d2c2968a1 (patch)
tree569ce8d4d64fa163a997d98fb9dd20d275c72068 /Documentation/hwmon
parent179899fd5dc780fe3bcd44d0eb7823e3d855c855 (diff)
downloadlinux-12a2b4b2241e318b4f6df31228e4272d2c2968a1.tar.xz
coredump: add support for %d=__get_dumpable() in core name
Some coredump handlers want to create a core file in a way compatible with standard behavior. Standard behavior with fs.suid_dumpable = 2 is to create core file with uid=gid=0. However, there was no way for coredump handler to know that the process being dumped was suid'ed. This patch adds the new %d specifier for format_corename() which simply reports __get_dumpable(mm->flags), this is compatible with /proc/sys/fs/suid_dumpable we already have. Addresses https://bugzilla.redhat.com/show_bug.cgi?id=787135 Developed during a discussion with Denys Vlasenko. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Alex Kelly <alex.page.kelly@gmail.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Cong Wang <amwang@redhat.com> Cc: Jiri Moskovcak <jmoskovc@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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