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authorAlexey Gladkov <legion@kernel.org>2021-04-22 15:27:13 +0300
committerEric W. Biederman <ebiederm@xmission.com>2021-04-30 22:14:02 +0300
commitd64696905554e919321e31afc210606653b8f6a4 (patch)
tree7c153f685f7e89823fc6c0b3e420d8fff12037df /include/linux/user_namespace.h
parent6e52a9f0532f912af37bab4caf18b57d1b9845f4 (diff)
downloadlinux-d64696905554e919321e31afc210606653b8f6a4.tar.xz
Reimplement RLIMIT_SIGPENDING on top of ucounts
The rlimit counter is tied to uid in the user_namespace. This allows rlimit values to be specified in userns even if they are already globally exceeded by the user. However, the value of the previous user_namespaces cannot be exceeded. Changelog v11: * Revert most of changes to fix performance issues. v10: * Fix memory leak on get_ucounts failure. Signed-off-by: Alexey Gladkov <legion@kernel.org> Link: https://lkml.kernel.org/r/df9d7764dddd50f28616b7840de74ec0f81711a8.1619094428.git.legion@kernel.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/user_namespace.h')
-rw-r--r--include/linux/user_namespace.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 5eeb86b00e68..58f417986472 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -52,6 +52,7 @@ enum ucount_type {
#endif
UCOUNT_RLIMIT_NPROC,
UCOUNT_RLIMIT_MSGQUEUE,
+ UCOUNT_RLIMIT_SIGPENDING,
UCOUNT_COUNTS,
};