tree 0b0a790f568c07298c3a4122572e84392c787648
parent 109f55651954def97fa41ee71c464d268c512ab0
author Mingming <cmm@us.ibm.com> 1257868084 -0500
committer Theodore Ts'o <tytso@mit.edu> 1257868084 -0500

ext4: skip conversion of uninit extents after direct IO if there isn't any

At the end of direct I/O operation, ext4_ext_direct_IO() always called
ext4_convert_unwritten_extents(), regardless of whether there were any
unwritten extents involved in the I/O or not.

This commit adds a state flag so that ext4_ext_direct_IO() only calls
ext4_convert_unwritten_extents() when necessary.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>