ocfs2: CoW a reflinked cluster when it is truncated.

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When we truncate a file to a specific size which resides in a reflinked
cluster, we need to CoW it since ocfs2_zero_range_for_truncate will
zero the space after the size(just another type of write).

So we add a "max_cpos" in ocfs2_refcount_cow so that it will stop when
it hit the max cluster offset.

Signed-off-by: Tao Ma <tao.ma@oracle.com>

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This commit is contained in:

Tao Ma 2009-08-26 09:47:28 +08:00 • committed by Joel Becker

parent 293b2f70b4

commit 37f8a2bfaa

4 changed files with 70 additions and 14 deletions

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2

fs/ocfs2/aops.c

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46

fs/ocfs2/file.c

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34

fs/ocfs2/refcounttree.c

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fs/ocfs2/refcounttree.h

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