tree 79572041ae1b5737bc8d75037ff86903469430eb
parent ccd2506bd43113659aa904d5bea5d1300605e2a6
author Theodore Ts'o <tytso@mit.edu> 1235481674 -0500
committer Theodore Ts'o <tytso@mit.edu> 1235481674 -0500

ext4: Automatically allocate delay allocated blocks on close

When closing a file that had been previously truncated, force any
delay allocated blocks that to be allocated so that if the filesystem
is mounted with data=ordered, the data blocks will be pushed out to
disk along with the journal commit.  Many application programs expect
this, so we do this to avoid zero length files if the system crashes
unexpectedly.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>