On Tue, Apr 23, 2019 at 11:58:28PM +0900, Wang Shilong wrote: > From: Wang Shilong <wshilong@xxxxxxx> > > Filesystem will modify @minlen according to its > block size etc, and will return actual unit > to userspace, document it into manpage. > > Cc: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > Signed-off-by: Wang Shilong <wshilong@xxxxxxx> Looks ok to me, Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --D > --- > v1->v2: > better explain as darrick suggestion.. > --- > sys-utils/fstrim.8 | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/sys-utils/fstrim.8 b/sys-utils/fstrim.8 > index f7e7aa9ef..c6ecca706 100644 > --- a/sys-utils/fstrim.8 > +++ b/sys-utils/fstrim.8 > @@ -76,10 +76,11 @@ the end of the filesystem. > .IP "\fB\-m, \-\-minimum\fP \fIminimum-size\fP" > Minimum contiguous free range to discard, in bytes. (This value is internally > rounded up to a multiple of the filesystem block size.) Free ranges smaller > -than this will be ignored. By increasing this value, the fstrim operation > -will complete more quickly for filesystems with badly fragmented freespace, > -although not all blocks will be discarded. The default value is zero, > -discarding every free block. > +than this will be ignored and fstrim will adjust the minimum if it's smaller than > +the device's minimum, and report that (fstrim_range.minlen) back to userspace. > +By increasing this value, the fstrim operation will complete more quickly for > +filesystems with badly fragmented freespace, although not all blocks will be > +discarded. The default value is zero, discarding every free block. > .IP "\fB\-v, \-\-verbose\fP" > Verbose execution. With this option > .B fstrim > -- > 2.21.0 >
