LU-14286 osd-ldiskfs: fallocate() should zero new blocks

[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_io.c

diff --git a/lustre/osd-ldiskfs/osd_io.c b/lustre/osd-ldiskfs/osd_io.c
index b9660d9..77843ff 100644 (file)
--- a/lustre/osd-ldiskfs/osd_io.c
+++ b/lustre/osd-ldiskfs/osd_io.c
@@ -2218,7 +2218,8 @@ static int osd_fallocate(const struct lu_env *env, struct dt_object *dt,
        boff = start >> inode->i_blkbits;
        blen = (ALIGN(end, 1 << inode->i_blkbits) >> inode->i_blkbits) - boff;
 
        boff = start >> inode->i_blkbits;
        blen = (ALIGN(end, 1 << inode->i_blkbits) >> inode->i_blkbits) - boff;
 

-       flags = LDISKFS_GET_BLOCKS_CREATE;
+       /* Create and Write zeros to new extents */
+       flags = LDISKFS_GET_BLOCKS_CREATE_ZERO;

        if (mode & FALLOC_FL_KEEP_SIZE)
                flags |= LDISKFS_GET_BLOCKS_KEEP_SIZE;
 
        if (mode & FALLOC_FL_KEEP_SIZE)
                flags |= LDISKFS_GET_BLOCKS_KEEP_SIZE;