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H A D | ioctl.c | 46e0f66a Fri Nov 15 05:14:55 CST 2013 Chris Mason <chris.mason@fusionio.com> btrfs: fix empty_zero_page misusage
Heiko Carstens noticed that btrfs was using empty_zero_page incorrectly. He explained:
The definition of empty_zero_page is architecture specific. It is (currently) either a character array, an unsigned long containing the address of the empty_zero_page, or even worse only the address of the struct page belonging to the empty_zero_page.
This commit changes btrfs to use a for-loop instead. On x86 the resulting .ko is smaller, and we're no longer worrying about how each arch builds its zeros.
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com> 46e0f66a Fri Nov 15 05:14:55 CST 2013 Chris Mason <chris.mason@fusionio.com> btrfs: fix empty_zero_page misusage Heiko Carstens noticed that btrfs was using empty_zero_page incorrectly. He explained: The definition of empty_zero_page is architecture specific. It is (currently) either a character array, an unsigned long containing the address of the empty_zero_page, or even worse only the address of the struct page belonging to the empty_zero_page. This commit changes btrfs to use a for-loop instead. On x86 the resulting .ko is smaller, and we're no longer worrying about how each arch builds its zeros. Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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