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| author | Miles Chen <miles.chen@mediatek.com> | 2018-01-31 16:21:27 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-31 17:18:40 -0800 |
| commit | 3f56a2f8030071cf86520ef4fc3045ba6856e610 (patch) | |
| tree | fc8c5d68b0dbeafc29ee5a7a46076b897103b09d | |
| parent | c7905f200225d4257536f19b11d18f598fee5f44 (diff) | |
| download | lwn-3f56a2f8030071cf86520ef4fc3045ba6856e610.tar.gz lwn-3f56a2f8030071cf86520ef4fc3045ba6856e610.zip | |
mm: remove PG_highmem description
Commit cbe37d093707 ("[PATCH] mm: remove PG_highmem") removed PG_highmem
to save a page flag. So the description of PG_highmem is no longer
needed.
Link: http://lkml.kernel.org/r/1517391212-2950-1-git-send-email-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/page-flags.h | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 3ec44e27aa9d..50c2b8786831 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -46,11 +46,6 @@ * guarantees that this bit is cleared for a page when it first is entered into * the page cache. * - * PG_highmem pages are not permanently mapped into the kernel virtual address - * space, they need to be kmapped separately for doing IO on the pages. The - * struct page (these bits with information) are always mapped into kernel - * address space... - * * PG_hwpoison indicates that a page got corrupted in hardware and contains * data with incorrect ECC bits that triggered a machine check. Accessing is * not safe since it may cause another machine check. Don't touch! |