| commit | c86d8db33a922da808a5560aa15ed663a9569b37 | [log] [tgz] |
|---|---|---|
| author | Jan Kara <jack@suse.com> | Mon Dec 07 15:10:26 2015 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Mon Dec 07 15:10:26 2015 -0500 |
| tree | 64ee357906cb5d2a0408a9613532460e49b7b6c9 | |
| parent | 53085fac02d12fcd29a9cb074ec480ff0f77ae5c [diff] |
ext4: implement allocation of pre-zeroed blocks DAX page fault path needs to get blocks that are pre-zeroed to avoid races when two concurrent page faults happen in the same block of a file. Implement support for this in ext4_map_blocks(). Signed-off-by: Jan Kara <jack@suse.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>