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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-11 21:55:04 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-11 21:55:04 +0300 |
| commit | d2b2250c3e565038a746b5db1de2af20a6468f02 (patch) | |
| tree | 8dab3401887c2f9fdd6052c12aeb6a1b930c63ae /arch/ia64 | |
| parent | d54d35c501bcbd57b9722a6b371c0608b5d34199 (diff) | |
| download | linux-d2b2250c3e565038a746b5db1de2af20a6468f02.tar.xz | |
ia64: disable CONFIG_PERFMON at least for now
Al noted that the semantics of the ia64 perfmon mmap() is really wrong,
and can cause serious VM problems. Before we look at whether it needs
to be fixed, let's see if anybody even uses it, and mark it broken. It
may be that we can just remove the code entirely.
Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
Acked-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Stephane Eranian <eranian@google.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 792437d526c6..ff861420b8f5 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -455,6 +455,7 @@ config IA64_MCA_RECOVERY config PERFMON bool "Performance monitor support" + depends on BROKEN help Selects whether support for the IA-64 performance monitor hardware is included in the kernel. This makes some kernel data-structures a |