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author | Daniel Golle <daniel@makrotopia.org> | 2019-06-12 01:14:25 +0200 |
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committer | Daniel Golle <daniel@makrotopia.org> | 2019-06-12 01:18:52 +0200 |
commit | 000d400baa0af2e42c9a462e42df7dc9abde1ec7 (patch) | |
tree | a11c2dd570e8f02c4a141f135fc8db1e1d391ef2 /target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch | |
parent | c4e727f01cc40bd57274d0b885b0f75cde9c4683 (diff) | |
download | upstream-000d400baa0af2e42c9a462e42df7dc9abde1ec7.tar.gz upstream-000d400baa0af2e42c9a462e42df7dc9abde1ec7.tar.bz2 upstream-000d400baa0af2e42c9a462e42df7dc9abde1ec7.zip |
kernel: drop everything not on kernel version 4.14
* Remove testing patches for kernel version 4.19
* remove targets ar7, ixp4xx, orion
Those targets are still on kernel 4.9, patches for 4.14 were not ready
in time. They may be readded once people prepare and test patches for
kernel 4.14.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Diffstat (limited to 'target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch')
-rw-r--r-- | target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch b/target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch deleted file mode 100644 index 622fab65b7..0000000000 --- a/target/linux/generic/pending-4.9/100-MIPS-fix-cache-flushing-for-highmem-pages.patch +++ /dev/null @@ -1,30 +0,0 @@ -From: Felix Fietkau <nbd@nbd.name> -Subject: MIPS: fix cache flushing for highmem pages - -Most cache flush ops were no-op for highmem pages. This led to nasty -segfaults and (in the case of page_address(page) == NULL) kernel -crashes. - -Fix this by always flushing highmem pages using kmap/kunmap_atomic -around the actual cache flush. This might be a bit inefficient, but at -least it's stable. - -Signed-off-by: Felix Fietkau <nbd@nbd.name> ---- - ---- a/arch/mips/mm/cache.c -+++ b/arch/mips/mm/cache.c -@@ -115,6 +115,13 @@ void __flush_anon_page(struct page *page - { - unsigned long addr = (unsigned long) page_address(page); - -+ if (PageHighMem(page)) { -+ addr = (unsigned long)kmap_atomic(page); -+ flush_data_cache_page(addr); -+ __kunmap_atomic((void *)addr); -+ return; -+ } -+ - if (pages_do_alias(addr, vmaddr)) { - if (page_mapcount(page) && !Page_dcache_dirty(page)) { - void *kaddr; |