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author | Theodore Ts'o | 2012-12-11 03:31:49 -0500 |
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committer | Theodore Ts'o | 2012-12-11 03:31:49 -0500 |
commit | bd9926e80330d43f15b710c2935fa41b792d56fd (patch) | |
tree | ccc30335831784996b7435d10df39ee14e92afad /Documentation/DMA-attributes.txt | |
parent | 9a4c8019471386c6fb039ae9e30f5216b6b55a9e (diff) |
ext4: zero out inline data using memset() instead of empty_zero_page
Not all architectures (in particular, sparc64) have empty_zero_page.
So instead of copying from empty_zero_page, use memset to clear the
inline data by signalling to ext4_xattr_set_entry() via a magic
pointer value, EXT4_ZERO_ATTR_VALUE, which is defined by casting -1 to
a pointer.
This fixes a build failure on sparc64, and the memset() should be more
efficient than using memcpy() anyway.
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'Documentation/DMA-attributes.txt')
0 files changed, 0 insertions, 0 deletions