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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 22:49:27 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-15 22:49:27 +0200 |
commit | e44740c1a94b5d39b093045920f543a7bc135584 (patch) | |
tree | 3dc097e078653cc520476ac997e1765b90703a56 /arch/um/Kconfig.um | |
parent | Merge tag 'upstream-4.1-rc1' of git://git.infradead.org/linux-ubifs (diff) | |
parent | um: Print minimum physical memory requirement (diff) | |
download | linux-e44740c1a94b5d39b093045920f543a7bc135584.tar.xz linux-e44740c1a94b5d39b093045920f543a7bc135584.zip |
Merge tag 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
- hostfs saw a face lifting
- old/broken stuff was removed (SMP, HIGHMEM, SKAS3/4)
- random cleanups and bug fixes
* tag 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: (26 commits)
um: Print minimum physical memory requirement
um: Move uml_postsetup in the init_thread stack
um: add a kmsg_dumper
x86, UML: fix integer overflow in ELF_ET_DYN_BASE
um: hostfs: Reduce number of syscalls in readdir
um: Remove broken highmem support
um: Remove broken SMP support
um: Remove SKAS3/4 support
um: Remove ppc cruft
um: Remove ia64 cruft
um: Remove dead code from stacktrace
hostfs: No need to box and later unbox the file mode
hostfs: Use page_offset()
hostfs: Set page flags in hostfs_readpage() correctly
hostfs: Remove superfluous initializations in hostfs_open()
hostfs: hostfs_open: Reset open flags upon each retry
hostfs: Remove superfluous test in hostfs_open()
hostfs: Report append flag in ->show_options()
hostfs: Use __getname() in follow_link
hostfs: Remove open coded strcpy()
...
Diffstat (limited to 'arch/um/Kconfig.um')
-rw-r--r-- | arch/um/Kconfig.um | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um index 5dbfe3d9107c..6e67847f5272 100644 --- a/arch/um/Kconfig.um +++ b/arch/um/Kconfig.um @@ -95,48 +95,6 @@ config MAGIC_SYSRQ The keys are documented in <file:Documentation/sysrq.txt>. Don't say Y unless you really know what this hack does. -config SMP - bool "Symmetric multi-processing support" - default n - depends on BROKEN - help - This option enables UML SMP support. - It is NOT related to having a real SMP box. Not directly, at least. - - UML implements virtual SMP by allowing as many processes to run - simultaneously on the host as there are virtual processors configured. - - Obviously, if the host is a uniprocessor, those processes will - timeshare, but, inside UML, will appear to be running simultaneously. - If the host is a multiprocessor, then UML processes may run - simultaneously, depending on the host scheduler. - - This, however, is supported only in TT mode. So, if you use the SKAS - patch on your host, switching to TT mode and enabling SMP usually - gives you worse performances. - Also, since the support for SMP has been under-developed, there could - be some bugs being exposed by enabling SMP. - - If you don't know what to do, say N. - -config NR_CPUS - int "Maximum number of CPUs (2-32)" - range 2 32 - depends on SMP - default "32" - -config HIGHMEM - bool "Highmem support" - depends on !64BIT && BROKEN - default n - help - This was used to allow UML to run with big amounts of memory. - Currently it is unstable, so if unsure say N. - - To use big amounts of memory, it is recommended enable static - linking (i.e. CONFIG_STATIC_LINK) - this should allow the - guest to use up to 2.75G of memory. - config KERNEL_STACK_ORDER int "Kernel stack size order" default 1 if 64BIT |