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| author | Ralf Baechle <ralf@linux-mips.org> | 2011-06-17 19:20:28 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-10-20 18:00:18 +0400 |
| commit | d9cdc901af0f92da7f90c750d8c187f5500be067 (patch) | |
| tree | 1b5e11202d86081253ab1422e302b45902a346a3 /arch/mips/mm/c-r3k.c | |
| parent | 2e5db86dd4166fd88a042bbb229dfc7081df3e92 (diff) | |
| download | linux-d9cdc901af0f92da7f90c750d8c187f5500be067.tar.xz | |
MIPS: cache: Provide cache flush operations for XFS
Until now flush_kernel_vmap_range() and invalidate_kernel_vmap_range() did
not exist on MIPS resulting in heavy cache corruption on XFS filesystems.
Left for the post-3.0 time: optimization and make this work with highmem,
too. Since the combination of highmem + cache aliases atm doesn't work
this isn't a regression.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2505/
Diffstat (limited to 'arch/mips/mm/c-r3k.c')
| -rw-r--r-- | arch/mips/mm/c-r3k.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index e6b0efd3f6a4..0765583d0c92 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c @@ -299,6 +299,11 @@ static void r3k_flush_cache_sigtramp(unsigned long addr) write_c0_status(flags); } +static void r3k_flush_kernel_vmap_range(unsigned long vaddr, int size) +{ + BUG(); +} + static void r3k_dma_cache_wback_inv(unsigned long start, unsigned long size) { /* Catch bad driver code */ @@ -323,6 +328,8 @@ void __cpuinit r3k_cache_init(void) flush_icache_range = r3k_flush_icache_range; local_flush_icache_range = r3k_flush_icache_range; + __flush_kernel_vmap_range = r3k_flush_kernel_vmap_range; + flush_cache_sigtramp = r3k_flush_cache_sigtramp; local_flush_data_cache_page = local_r3k_flush_data_cache_page; flush_data_cache_page = r3k_flush_data_cache_page; |