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83fe27ea53
SRCU is not necessary to be compiled by default in all cases. For tinification efforts not compiling SRCU unless necessary is desirable. The current patch tries to make compiling SRCU optional by introducing a new Kconfig option CONFIG_SRCU which is selected when any of the components making use of SRCU are selected. If we do not select CONFIG_SRCU, srcu.o will not be compiled at all. text data bss dec hex filename 2007 0 0 2007 7d7 kernel/rcu/srcu.o Size of arch/powerpc/boot/zImage changes from text data bss dec hex filename 831552 64180 23944 919676 e087c arch/powerpc/boot/zImage : before 829504 64180 23952 917636 e0084 arch/powerpc/boot/zImage : after so the savings are about ~2000 bytes. Signed-off-by: Pranith Kumar <bobby.prani@gmail.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> CC: Josh Triplett <josh@joshtriplett.org> CC: Lai Jiangshan <laijs@cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> [ paulmck: resolve conflict due to removal of arch/ia64/kvm/Kconfig. ]
77 lines
2.4 KiB
Plaintext
77 lines
2.4 KiB
Plaintext
#
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# Quota configuration
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#
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config QUOTA
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bool "Quota support"
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select QUOTACTL
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select SRCU
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help
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If you say Y here, you will be able to set per user limits for disk
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usage (also called disk quotas). Currently, it works for the
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ext2, ext3, ext4, jfs, ocfs2 and reiserfs file systems.
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Note that gfs2 and xfs use their own quota system.
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Ext3, ext4 and reiserfs also support journaled quotas for which
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you don't need to run quotacheck(8) after an unclean shutdown.
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For further details, read the Quota mini-HOWTO, available from
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<http://www.tldp.org/docs.html#howto>, or the documentation provided
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with the quota tools. Probably the quota support is only useful for
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multi user systems. If unsure, say N.
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config QUOTA_NETLINK_INTERFACE
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bool "Report quota messages through netlink interface"
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depends on QUOTACTL && NET
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help
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If you say Y here, quota warnings (about exceeding softlimit, reaching
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hardlimit, etc.) will be reported through netlink interface. If unsure,
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say Y.
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config PRINT_QUOTA_WARNING
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bool "Print quota warnings to console (OBSOLETE)"
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depends on QUOTA
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default y
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help
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If you say Y here, quota warnings (about exceeding softlimit, reaching
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hardlimit, etc.) will be printed to the process' controlling terminal.
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Note that this behavior is currently deprecated and may go away in
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future. Please use notification via netlink socket instead.
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config QUOTA_DEBUG
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bool "Additional quota sanity checks"
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depends on QUOTA
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default n
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help
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If you say Y here, quota subsystem will perform some additional
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sanity checks of quota internal structures. If unsure, say N.
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# Generic support for tree structured quota files. Selected when needed.
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config QUOTA_TREE
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tristate
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config QFMT_V1
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tristate "Old quota format support"
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depends on QUOTA
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help
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This quota format was (is) used by kernels earlier than 2.4.22. If
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you have quota working and you don't want to convert to new quota
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format say Y here.
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config QFMT_V2
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tristate "Quota format vfsv0 and vfsv1 support"
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depends on QUOTA
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select QUOTA_TREE
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help
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This config option enables kernel support for vfsv0 and vfsv1 quota
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formats. Both these formats support 32-bit UIDs/GIDs and vfsv1 format
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also supports 64-bit inode and block quota limits. If you need this
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functionality say Y here.
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config QUOTACTL
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bool
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default n
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config QUOTACTL_COMPAT
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bool
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depends on QUOTACTL && COMPAT_FOR_U64_ALIGNMENT
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default y
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