ext4: don't calculate total xattr header size unless needed
The function ext4_expand_extra_isize_ea() doesn't need the size of all
of the extended attribute headers. So if we don't calculate it when
it is unneeded, it we can skip some undeeded memory references, and as
a bonus, we eliminate some kvetching by static code analysis tools.
Addresses-Coverity-Id: #741291
Signed-off-by:
"Theodore Ts'o" <tytso@mit.edu>
parent
9a6633b1
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