diff options
| author | Helge Deller <deller@gmx.de> | 2014-01-31 21:33:17 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2014-02-02 20:57:16 +0100 |
| commit | 57737c49dd72c96cfbcd4f66559f3ffc399aeb4f (patch) | |
| tree | 390ecd631d941babf6f7390bbac4f7c6187f957a /arch/parisc/include/asm/cacheflush.h | |
| parent | 8a10bc9d27ceb084b0d8be621a033a475eb9fdfd (diff) | |
parisc: fix cache-flushing
This commit:
f8dae00684d678afa13041ef170cecfd1297ed40: parisc: Ensure full cache coherency for kmap/kunmap
caused negative caching side-effects, e.g. hanging processes with expect and
too many inequivalent alias messages from flush_dcache_page() on Debian 5 systems.
This patch now partly reverts it and has been in production use on our debian buildd
makeservers since a week without any major problems.
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include/asm/cacheflush.h')
| -rw-r--r-- | arch/parisc/include/asm/cacheflush.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h index 2f9b751878ba..de65f66ea64e 100644 --- a/arch/parisc/include/asm/cacheflush.h +++ b/arch/parisc/include/asm/cacheflush.h @@ -132,7 +132,6 @@ void mark_rodata_ro(void); static inline void *kmap(struct page *page) { might_sleep(); - flush_dcache_page(page); return page_address(page); } @@ -144,7 +143,6 @@ static inline void kunmap(struct page *page) static inline void *kmap_atomic(struct page *page) { pagefault_disable(); - flush_dcache_page(page); return page_address(page); } |