ext4: fix partial page writes

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While running extended fsx tests to verify the preceeding patches,
a similar bug was also found in the write operation

When ever a write operation begins or ends in a hole,
or extends EOF, the partial page contained in the hole
or beyond EOF needs to be zeroed out.

To correct this the new ext4_discard_partial_page_buffers_no_lock
routine is used to zero out the partial page, but only for buffer
heads that are already unmapped.

Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

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Allison Henderson 2011-09-06 21:53:01 -04:00 • committed by Theodore Ts'o

parent 189e868fa8

commit 02fac1297e

1 changed files with 19 additions and 0 deletions

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fs/ext4/inode.c

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