On Sat, Feb 28, 2015 at 05:23:30PM +0800, Chao Yu wrote: > Now in f2fs, we share functions and structures for batch mode and real-time > mode > discard. For real-time mode discard, in shared function add_discard_addrs, we > will use uninitialized trim_minlen in struct cp_control to compare with length > of contiguous free blocks to decide whether skipping discard fragmented > freespace > or not, this makes us ignore small discard sometimes. Fix it. > > Signed-off-by: Chao Yu <[email protected]> > --- > fs/f2fs/segment.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c > index daee4ab..fcc1cc2 100644 > --- a/fs/f2fs/segment.c > +++ b/fs/f2fs/segment.c > @@ -549,7 +549,7 @@ static void add_discard_addrs(struct f2fs_sb_info *sbi, > struct cp_control *cpc) > > end = __find_rev_next_zero_bit(dmap, max_blocks, start + 1); > > - if (end - start < cpc->trim_minlen) > + if (force && end - start < cpc->trim_minlen) > continue;
Reviewed-by : Changman Lee <[email protected]> > > __add_discard_entry(sbi, cpc, start, end); > -- > 2.3.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
