ocfs2: support writing of unwritten extents

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Update the write code to detect when the user is asking to write to an
unwritten extent. Like writing to a hole, we must zero the region between
the write and the cluster boundaries. Most of the existing cluster zeroing
logic can be re-used with some additional checks for the unwritten flag on
extent records.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

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This commit is contained in:

Mark Fasheh 2007-06-18 11:22:56 -07:00

parent 0d172baa55

commit b27b7cbcf1

3 changed files with 84 additions and 26 deletions

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98

fs/ocfs2/aops.c

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14

fs/ocfs2/file.c

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2

fs/ocfs2/file.h

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