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ocfs2: zero tail of sparse files on truncate

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Since we don't zero on extend anymore, truncate needs to be fixed up to zero
the part of a file between i_size and and end of it's cluster. Otherwise a
subsequent extend could expose bad data.

This introduced a new helper, which can be used in ocfs2_write().

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Mark Fasheh 2007-02-16 11:46:50 -08:00
commit 60b11392f1
7 changed files with 328 additions and 25 deletions
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