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| author | Simon Baatz <gmbnomis@gmail.com> | 2013-06-11 00:10:12 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-03 21:55:20 +0400 |
| commit | c5ba85b81a2b6243437363b47390917f110b8583 (patch) | |
| tree | 9095e23d1ecf467bddd01d0d0bd27438b240c267 /net | |
| parent | 1ab7a7e0fb972bd5d32f3302c1e03207f836d6ff (diff) | |
| download | linux-c5ba85b81a2b6243437363b47390917f110b8583.tar.xz | |
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 'net')
0 files changed, 0 insertions, 0 deletions