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authorSimon Baatz <gmbnomis@gmail.com>2013-06-10 21:10:12 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-07-03 10:59:00 -0700
commit5fca91fe312daac06f00bab90449f766e445731a (patch)
treead2384d9825b5d752ceef7b2c10df38de6773bb6 /drivers/scsi/mpt2sas/mpi/mpi2_init.h
parent8a987612af206835d6664c9c1389cee4a485b389 (diff)
ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_page
commit 1bc39742aab09248169ef9d3727c9def3528b3f3 upstream. Commit f8b63c1 made flush_kernel_dcache_page a no-op assuming that the pages it needs to handle are kernel mapped only. However, for example when doing direct I/O, pages with user space mappings may occur. Thus, continue to do lazy flushing if there are no user space mappings. Otherwise, flush the kernel cache lines directly. Signed-off-by: Simon Baatz <gmbnomis@gmail.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpi/mpi2_init.h')
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