diff options
Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/init/Kconfig b/init/Kconfig index 0d6bb5cf4..f7da6c96e 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -328,8 +328,9 @@ config CROSS_MEMORY_ATTACH See the man page for more details. config FHANDLE - bool "open by fhandle syscalls" + bool "open by fhandle syscalls" if EXPERT select EXPORTFS + default y help If you say Y here, a user level program will be able to map file names to handle and then later use the handle for @@ -1107,10 +1108,10 @@ config CGROUP_PIDS is fairly trivial to reach PID exhaustion before you reach even a conservative kmemcg limit. As a result, it is possible to grind a system to halt without being limited by other cgroup policies. The - PIDs cgroup subsystem is designed to stop this from happening. + PIDs controller is designed to stop this from happening. It should be noted that organisational operations (such as attaching - to a cgroup hierarchy will *not* be blocked by the PIDs subsystem), + to a cgroup hierarchy will *not* be blocked by the PIDs controller), since the PIDs limit only affects a process's ability to fork, not to attach to a cgroup. @@ -1505,6 +1506,28 @@ config KALLSYMS_ALL Say N unless you really need all symbols. +config KALLSYMS_ABSOLUTE_PERCPU + bool + default X86_64 && SMP + +config KALLSYMS_BASE_RELATIVE + bool + depends on KALLSYMS + default !IA64 && !(TILE && 64BIT) + help + Instead of emitting them as absolute values in the native word size, + emit the symbol references in the kallsyms table as 32-bit entries, + each containing a relative value in the range [base, base + U32_MAX] + or, when KALLSYMS_ABSOLUTE_PERCPU is in effect, each containing either + an absolute value in the range [0, S32_MAX] or a relative value in the + range [base, base + S32_MAX], where base is the lowest relative symbol + address encountered in the image. + + On 64-bit builds, this reduces the size of the address table by 50%, + but more importantly, it results in entries whose values are build + time constants, and no relocation pass is required at runtime to fix + up the entries based on the runtime load address of the kernel. + config PRINTK default y bool "Enable support for printk" if EXPERT @@ -1843,9 +1866,9 @@ config SYSTEM_DATA_VERIFICATION select SYSTEM_TRUSTED_KEYRING select KEYS select CRYPTO + select CRYPTO_RSA select ASYMMETRIC_KEY_TYPE select ASYMMETRIC_PUBLIC_KEY_SUBTYPE - select PUBLIC_KEY_ALGO_RSA select ASN1 select OID_REGISTRY select X509_CERTIFICATE_PARSER |