This patch and the previous one(The following patch) also fixed a oops, which can be reproduced by LTP stress test(ltpstress.sh + fsstress).
[PATCH] btrfs: Fix and enhance merge_extent_mapping() to insert best fitted extent map Thanks Miao On Mon, 22 Sep 2014 09:13:03 +0800, Qu Wenruo wrote: > Previous commit: btrfs: Fix and enhance merge_extent_mapping() to insert > best fitted extent map > is using wrong condition to judgement whether the range is a subset of a > existing extent map. > > This may cause bug in btrfs no-holes mode. > > This patch will correct the judgment and fix the bug. > > Signed-off-by: Qu Wenruo <[email protected]> > --- > fs/btrfs/inode.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c > index 8039021..a99ee9d 100644 > --- a/fs/btrfs/inode.c > +++ b/fs/btrfs/inode.c > @@ -6527,7 +6527,7 @@ insert: > * extent causing the -EEXIST. > */ > if (start >= extent_map_end(existing) || > - start + len <= existing->start) { > + start <= existing->start) { > /* > * The existing extent map is the one nearest to > * the [start, start + len) range which overlaps > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
