Discard granularity tells us the minimum size of extent to be discarded. Use that information to adjust minlen properly in FITRIM code. Smaller extents will be ignored anyway, so we can optimize by not even trying to discard them. Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx> --- fs/ext4/ioctl.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index 25ba7c7..c052c9f 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -348,6 +348,8 @@ mext_out: sizeof(range))) return -EFAULT; + range.minlen = max((unsigned int)range.minlen, + q->limits.discard_granularity); ret = ext4_trim_fs(sb, &range); if (ret < 0) return ret; -- 1.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
