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authorTheodore Ts'o <tytso@mit.edu>2012-12-11 03:31:49 -0500
committerTheodore Ts'o <tytso@mit.edu>2012-12-11 03:31:49 -0500
commitbd9926e80330d43f15b710c2935fa41b792d56fd (patch)
treeccc30335831784996b7435d10df39ee14e92afad /fs/jbd2
parent9a4c8019471386c6fb039ae9e30f5216b6b55a9e (diff)
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op-kernel-dev-bd9926e80330d43f15b710c2935fa41b792d56fd.tar.gz
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>
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