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author | Geert Uytterhoeven <geert@linux-m68k.org> | 2017-12-14 15:32:52 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-12-14 16:00:48 -0800 |
commit | 183f24aa5b76e37da690b2def41cc70f0792ce09 (patch) | |
tree | 844940bb48a7feece30be4412d46b426ade1bd8f /README | |
parent | 4cc90b4cc3d4955f79eae4f7f9d64e67e17b468e (diff) |
mm/memory.c: mark wp_huge_pmd() inline to prevent build failure
With gcc 4.1.2:
mm/memory.o: In function `wp_huge_pmd':
memory.c:(.text+0x9b4): undefined reference to `do_huge_pmd_wp_page'
Interestingly, wp_huge_pmd() is emitted in the assembler output, but
never called.
Apparently replacing the call to pmd_write() in __handle_mm_fault() by a
call to the more complex pmd_access_permitted() reduced the ability of
the compiler to remove unused code.
Fix this by marking wp_huge_pmd() inline, like was done in commit
91a90140f998 ("mm/memory.c: mark create_huge_pmd() inline to prevent
build failure") for a similar problem.
[akpm@linux-foundation.org: add comment]
Link: http://lkml.kernel.org/r/1512335500-10889-1-git-send-email-geert@linux-m68k.org
Fixes: c7da82b894e9eef6 ("mm: replace pmd_write with pmd_access_permitted in fault + gup paths")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions