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| author |   Christoph Hellwig <hch@lst.de> | 2019-04-23 18:38:08 +0200 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@arndb.de> | 2019-04-23 21:51:40 +0200 |
| commit | bd79f94758c011bdffd8d4afcfb578d169cb5e93 (patch) | |
| tree | a6a192d9e83428b5cf234370df06d4e29c593761 /lib/Kconfig | |
| parent | arch: mostly remove <asm/segment.h> (diff) | |
| download | linux-dev-bd79f94758c011bdffd8d4afcfb578d169cb5e93.tar.xz linux-dev-bd79f94758c011bdffd8d4afcfb578d169cb5e93.zip | |
asm-generic: provide entirely generic nommu uaccess
Move the code to implement uaccess using memcpy or direct loads and
stores to asm-generic/uaccess.h and make it selectable kconfig option.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'lib/Kconfig')
| -rw-r--r-- | lib/Kconfig | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index a9e56539bd11..7a3f01ac45e8 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -591,6 +591,10 @@ config ARCH_NO_SG_CHAIN config ARCH_HAS_PMEM_API bool +# use memcpy to implement user copies for nommu architectures +config UACCESS_MEMCPY + bool + config ARCH_HAS_UACCESS_FLUSHCACHE bool |