From: Miles Chen <miles.chen@xxxxxxxxxxxx>
Subject: mm: remove PG_highmem description
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@xxxxxxxxxxxx
Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/page-flags.h | 5 -----
1 file changed, 5 deletions(-)
diff -puN include/linux/page-flags.h~mm-remove-pg_highmem-description include/linux/page-flags.h
--- a/include/linux/page-flags.h~mm-remove-pg_highmem-description
+++ a/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!
_
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