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author | Yang Shi <yang.shi@linaro.org> | 2016-05-28 00:27:30 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-28 00:49:37 +0300 |
commit | fe53ca54270a757f0a28ee6bf3a54d952b550ed0 (patch) | |
tree | f124113d718b8fc04880cfabe47efcec734b1f4d /drivers/target/target_core_iblock.h | |
parent | f871f191357ebadb6ad7e8ecf6e8f40b694eea00 (diff) | |
download | linux-fe53ca54270a757f0a28ee6bf3a54d952b550ed0.tar.xz |
mm: use early_pfn_to_nid in page_ext_init
page_ext_init() checks suitable pages with pfn_to_nid(), but
pfn_to_nid() depends on memmap which will not be setup fully until
page_alloc_init_late() is done. Use early_pfn_to_nid() instead of
pfn_to_nid() so that page extension could be still used early even
though CONFIG_ DEFERRED_STRUCT_PAGE_INIT is enabled and catch early page
allocation call sites.
Suggested by Joonsoo Kim [1], this fix basically undoes the change
introduced by commit b8f1a75d61d840 ("mm: call page_ext_init() after all
struct pages are initialized") and fixes the same problem with a better
approach.
[1] http://lkml.kernel.org/r/CAAmzW4OUmyPwQjvd7QUfc6W1Aic__TyAuH80MLRZNMxKy0-wPQ@mail.gmail.com
Link: http://lkml.kernel.org/r/1464198689-23458-1-git-send-email-yang.shi@linaro.org
Signed-off-by: Yang Shi <yang.shi@linaro.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/target/target_core_iblock.h')
0 files changed, 0 insertions, 0 deletions