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authorJosef Bacik <josef@redhat.com>2012-05-02 13:52:09 -0400
committerJosef Bacik <josef@redhat.com>2012-05-30 10:23:33 -0400
commit4e89915220e2f1341c757b610d0f0c3821f3a65f (patch)
tree5c70b0fab1d05a924ce316e8ba632b95b6555c16 /fs/pstore
parentf60d16a8923201bb27ad7c09016abab2818cf8ce (diff)
Btrfs: do not check delalloc when updating disk_i_size
We are checking delalloc to see if it is ok to update the i_size. There are 2 cases it stops us from updating 1) If there is delalloc between our current disk_i_size and this ordered extent 2) If there is delalloc between our current ordered extent and the next ordered extent These tests are racy however since we can set delalloc for these ranges at any time. Also for the first case if we notice there is delalloc between disk_i_size and our ordered extent we will not update disk_i_size and assume that when that delalloc bit gets written out it will update everything properly. However if we crash before that we will have file extents outside of our i_size, which is not good, so this test is dangerous as well as racy. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
Diffstat (limited to 'fs/pstore')
0 files changed, 0 insertions, 0 deletions