tree 1018ea7d0a2f511ae58934175dbc3815b7e63b5f
parent b419148e567728f6af0c3b01965c1cc141e3e13a
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1257205849 -0500
committer Theodore Ts'o <tytso@mit.edu> 1257205849 -0500

ext4: discard preallocation when restarting a transaction during truncate

When restart a transaction during a truncate operation, we drop and
reacquire i_data_sem.  After reacquiring i_data_sem, we need to
discard any inode-based preallocation that might have been grabbed
while we released i_data_sem (for example, if pdflush is allocating
blocks and racing against the truncate).

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>