On Sun, 23 Feb 2014 09:42:32 +0100, Andreas Rohner wrote: > Hi, > > This patch adds support for the FITRIM ioctl, which allows user space > tools like fstrim to issue TRIM/DISCARD requests to the underlying > device. It takes a fstrim_range structure as a parameter and for every > clean segment in the specified range the function blkdev_issue_discard > is called. The range is truncated to file system block boundaries. > > I tested it with a 32 bit and 64 bit kernel. On the 32 bit system > CONFIG_LBDAF was disabled so that sector_t was 32 bit. > > Best regards, > Andreas Rohner > > --- > v3->v4 (based on review by Ryusuke Konishi) > * Fix integer overflow > * Add comment > v2->v3 (based on review by Ryusuke Konishi) > * Fix integer overflow > * Round range to block boundary instead of sector boundary > * Move range check to nilfs_sufile_trim_fs() > v1->v2 (based on review by Ryusuke Konishi) > * Remove upper limit of minlen > * Add check for minlen > * Round range to sector boundary instead of segment boundary > * Fix minor bug > * Use kmap_atomic instead of kmap > * Move input checks to ioctl.c > * Use nilfs_sufile_segment_usages_in_block() > -- > > Andreas Rohner (2): > nilfs2: add nilfs_sufile_trim_fs to trim clean segs > nilfs2: add FITRIM ioctl support for nilfs2 > > fs/nilfs2/ioctl.c | 45 ++++++++++++++++ > fs/nilfs2/sufile.c | 152 +++++++++++++++++++++++++++++++++++++++++++++++++++++ > fs/nilfs2/sufile.h | 1 + > 3 files changed, 198 insertions(+) Applied to my queue for upstream. Thanks a lot! Ryusuke Konishi -- To unsubscribe from this list: send the line "unsubscribe linux-nilfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
