menu "CPU/Task time and stats accounting"
+choice
+ prompt "Cputime accounting"
+ default TICK_CPU_ACCOUNTING if !PPC64
+ default VIRT_CPU_ACCOUNTING if PPC64
+
+# Kind of a stub config for the pure tick based cputime accounting
+config TICK_CPU_ACCOUNTING
+ bool "Simple tick based cputime accounting"
+ depends on !S390
+ help
+ This is the basic tick based cputime accounting that maintains
+ statistics about user, system and idle time spent on per jiffies
+ granularity.
+
+ If unsure, say Y.
+
config VIRT_CPU_ACCOUNTING
bool "Deterministic task and CPU time accounting"
depends on HAVE_VIRT_CPU_ACCOUNTING
- default y if PPC64
help
Select this option to enable more accurate task and CPU time
accounting. This is done by reading a CPU counter on each
this also enables accounting of stolen time on logically-partitioned
systems.
+config IRQ_TIME_ACCOUNTING
+ bool "Fine granularity task level IRQ time accounting"
+ depends on HAVE_IRQ_TIME_ACCOUNTING
+ help
+ Select this option to enable fine granularity task irq time
+ accounting. This is done by reading a timestamp on each
+ transitions between softirq and hardirq state, so there can be a
+ small performance impact.
+
+ If in doubt, say N here.
+
+endchoice
+
config BSD_PROCESS_ACCT
bool "BSD Process Accounting"
help
This option enables preemptible-RCU code that is common between
the TREE_PREEMPT_RCU and TINY_PREEMPT_RCU implementations.
+config RCU_USER_QS
+ bool "Consider userspace as in RCU extended quiescent state"
+ depends on HAVE_RCU_USER_QS && SMP
+ help
+ This option sets hooks on kernel / userspace boundaries and
+ puts RCU in extended quiescent state when the CPU runs in
+ userspace. It means that when a CPU runs in userspace, it is
+ excluded from the global RCU state machine and thus doesn't
+ to keep the timer tick on for RCU.
+
+config RCU_USER_QS_FORCE
+ bool "Force userspace extended QS by default"
+ depends on RCU_USER_QS
+ help
+ Set the hooks in user/kernel boundaries by default in order to
+ test this feature that treats userspace as an extended quiescent
+ state until we have a real user like a full adaptive nohz option.
+
config RCU_FANOUT
int "Tree-based hierarchical RCU fanout value"
range 2 64 if 64BIT
bool
default y
- # List of kernel pieces that need user namespace work
- # Features
- depends on SYSVIPC = n
- depends on IMA = n
- depends on EVM = n
- depends on KEYS = n
- depends on AUDIT = n
- depends on AUDITSYSCALL = n
- depends on TASKSTATS = n
- depends on TRACING = n
- depends on FS_POSIX_ACL = n
- depends on QUOTA = n
- depends on QUOTACTL = n
- depends on DEBUG_CREDENTIALS = n
- depends on BSD_PROCESS_ACCT = n
- depends on DRM = n
- depends on PROC_EVENTS = n
-
# Networking
- depends on NET = n
depends on NET_9P = n
- depends on IPX = n
- depends on PHONET = n
- depends on NET_CLS_FLOW = n
- depends on NETFILTER_XT_MATCH_OWNER = n
- depends on NETFILTER_XT_MATCH_RECENT = n
- depends on NETFILTER_XT_TARGET_LOG = n
- depends on NETFILTER_NETLINK_LOG = n
- depends on INET = n
- depends on IPV6 = n
- depends on IP_SCTP = n
- depends on AF_RXRPC = n
- depends on LLC2 = n
- depends on NET_KEY = n
- depends on INET_DIAG = n
- depends on DNS_RESOLVER = n
- depends on AX25 = n
- depends on ATALK = n
# Filesystems
- depends on USB_DEVICEFS = n
- depends on USB_GADGETFS = n
- depends on USB_FUNCTIONFS = n
- depends on DEVTMPFS = n
- depends on XENFS = n
-
depends on 9P_FS = n
- depends on ADFS_FS = n
- depends on AFFS_FS = n
depends on AFS_FS = n
depends on AUTOFS4_FS = n
- depends on BEFS_FS = n
- depends on BFS_FS = n
- depends on BTRFS_FS = n
depends on CEPH_FS = n
depends on CIFS = n
depends on CODA_FS = n
- depends on CONFIGFS_FS = n
- depends on CRAMFS = n
- depends on DEBUG_FS = n
- depends on ECRYPT_FS = n
- depends on EFS_FS = n
- depends on EXOFS_FS = n
- depends on FAT_FS = n
depends on FUSE_FS = n
depends on GFS2_FS = n
- depends on HFS_FS = n
- depends on HFSPLUS_FS = n
- depends on HPFS_FS = n
- depends on HUGETLBFS = n
- depends on ISO9660_FS = n
- depends on JFFS2_FS = n
- depends on JFS_FS = n
- depends on LOGFS = n
- depends on MINIX_FS = n
depends on NCP_FS = n
depends on NFSD = n
depends on NFS_FS = n
- depends on NILFS2_FS = n
- depends on NTFS_FS = n
depends on OCFS2_FS = n
- depends on OMFS_FS = n
- depends on QNX4FS_FS = n
- depends on QNX6FS_FS = n
- depends on REISERFS_FS = n
- depends on SQUASHFS = n
- depends on SYSV_FS = n
- depends on UBIFS_FS = n
- depends on UDF_FS = n
- depends on UFS_FS = n
- depends on VXFS_FS = n
depends on XFS_FS = n
- depends on !UML || HOSTFS = n
-
- # The rare drivers that won't build
- depends on AIRO = n
- depends on AIRO_CS = n
- depends on TUN = n
- depends on INFINIBAND_QIB = n
- depends on BLK_DEV_LOOP = n
- depends on ANDROID_BINDER_IPC = n
-
- # Security modules
- depends on SECURITY_TOMOYO = n
- depends on SECURITY_APPARMOR = n
-
config UIDGID_STRICT_TYPE_CHECKS
bool "Require conversions between uid/gids and their internal representation"
depends on UIDGID_CONVERTED
config UID16
bool "Enable 16-bit UID system calls" if EXPERT
- depends on ARM || BLACKFIN || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && COMPAT) || UML || (X86_64 && IA32_EMULATION)
+ depends on ARM || BLACKFIN || CRIS || FRV || H8300 || X86_32 || M68K || (S390 && !64BIT) || SUPERH || SPARC32 || (SPARC64 && COMPAT) || UML || (X86_64 && IA32_EMULATION) \
+ || AARCH32_EMULATION
default y
help
This enables the legacy 16-bit UID syscall wrappers.
Say N unless you really need all symbols.
config HOTPLUG
- bool "Support for hot-pluggable devices" if EXPERT
- default y
- help
- This option is provided for the case where no hotplug or uevent
- capabilities is wanted by the kernel. You should only consider
- disabling this option for embedded systems that do not use modules, a
- dynamic /dev tree, or dynamic device discovery. Just say Y.
+ def_bool y
config PRINTK
default y
projects / linux-beck.git / blobdiff