From: Christoph Hellwig <hch@infradead.org>
To: Mike Christie <mchristi@redhat.com>
Cc: Vincent Stehl?? <vincent.stehle@intel.com>,
linux-btrfs@vger.kernel.org, linux-block@vger.kernel.org,
Jens Axboe <axboe@fb.com>,
dm-devel@redhat.com
Subject: Re: [dm-devel] [PATCH next] Btrfs: fix comparison in __btrfs_map_block()
Date: Sun, 17 Jul 2016 20:50:51 -0700 [thread overview]
Message-ID: <20160718035051.GA3304@infradead.org> (raw)
In-Reply-To: <578BEFB7.6060209@redhat.com>
On Sun, Jul 17, 2016 at 03:51:03PM -0500, Mike Christie wrote:
> >
> > diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> > index a69203a..6ee1e36 100644
> > --- a/fs/btrfs/volumes.c
> > +++ b/fs/btrfs/volumes.c
> > @@ -5533,7 +5533,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int op,
> > }
> >
> > } else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
> > - if (op == REQ_OP_WRITE || REQ_OP_DISCARD ||
> > + if (op == REQ_OP_WRITE || op == REQ_OP_DISCARD ||
> > op == REQ_GET_READ_MIRRORS) {
> > num_stripes = map->num_stripes;
> > } else if (mirror_num) {
> >
>
>
> Shoot. Dumb mistake by me. It is of course correct.
Ad while we're at it we need to fix up that REQ_GET_READ_MIRRORS thing.
Overloading the op localally in a fs is going to create problems sooner
or later as no one touching the generic values and/or the code
mashalling it in different forms knows about it.
next prev parent reply other threads:[~2016-07-18 3:50 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-05 19:31 [PATCH 00/45] v8: separate operations from flags in the bio/request structs mchristi
2016-06-05 19:31 ` [PATCH 01/45] block/fs/drivers: remove rw argument from submit_bio mchristi
2016-06-05 20:30 ` kbuild test robot
2016-06-05 21:22 ` kbuild test robot
2016-06-05 21:48 ` kbuild test robot
2016-06-06 6:12 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 02/45] block: add REQ_OP definitions and helpers mchristi
2016-06-06 6:13 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 03/45] fs: have submit_bh users pass in op and flags separately mchristi
2016-06-05 19:31 ` [PATCH 04/45] fs: have ll_rw_block " mchristi
2016-06-05 19:31 ` [PATCH 05/45] block, drivers, cgroup: use op_is_write helper instead of checking for REQ_WRITE mchristi
2016-06-06 6:14 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 06/45] dm: use op_is_write " mchristi
2016-06-06 6:15 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 07/45] bcache: " mchristi
2016-06-06 6:16 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 08/45] block, fs, mm, drivers: use bio set/get op accessors mchristi
2016-06-06 6:20 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 09/45] block discard: use bio set op accessor mchristi
2016-06-06 6:21 ` Hannes Reinecke
2016-06-05 19:31 ` [PATCH 10/45] direct-io: use bio set/get op accessors mchristi
2016-06-05 19:31 ` [PATCH 11/45] btrfs: have submit_one_bio users use bio " mchristi
2016-06-05 19:31 ` [PATCH 12/45] btrfs: " mchristi
2016-06-05 19:31 ` [PATCH 13/45] btrfs: update __btrfs_map_block for REQ_OP transition mchristi
2016-07-15 15:03 ` [PATCH next] Btrfs: fix comparison in __btrfs_map_block() Vincent Stehlé
2016-07-17 20:51 ` Mike Christie
2016-07-18 3:50 ` Christoph Hellwig [this message]
2016-07-18 21:28 ` Jens Axboe
2016-06-05 19:31 ` [PATCH 14/45] btrfs: use bio fields for op and flags mchristi
2016-06-05 19:31 ` [PATCH 15/45] f2fs: use bio op accessors mchristi
2016-06-05 19:31 ` [PATCH 16/45] gfs2: " mchristi
2016-06-05 19:31 ` [PATCH 17/45] xfs: " mchristi
2016-06-05 19:31 ` [PATCH 18/45] hfsplus: " mchristi
2016-06-05 19:31 ` [PATCH 19/45] mpage: " mchristi
2016-06-05 19:32 ` [PATCH 20/45] nilfs: " mchristi
2016-06-05 19:32 ` [PATCH 21/45] ocfs2: " mchristi
2016-06-05 19:32 ` [PATCH 22/45] pm: " mchristi
2016-06-05 19:32 ` [PATCH 23/45] dm: pass dm stats data dir instead of bi_rw mchristi
2016-06-05 19:32 ` [PATCH 24/45] dm: use bio op accessors mchristi
2016-06-06 6:43 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 25/45] bcache: " mchristi
2016-06-06 6:45 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 26/45] drbd: " mchristi
2016-06-05 19:32 ` [PATCH 27/45] md: " mchristi
2016-06-05 19:32 ` [PATCH 28/45] target: " mchristi
2016-06-06 6:46 ` Hannes Reinecke
2016-06-06 15:40 ` Mike Christie
2016-06-06 15:43 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 29/45] xen: " mchristi
2016-06-05 19:32 ` [PATCH 30/45] block: copy bio op to request op mchristi
2016-06-05 19:32 ` [PATCH 31/45] block: prepare request creation/destruction code to use REQ_OPs mchristi
2016-06-05 19:32 ` [PATCH 32/45] block: prepare mq request creation " mchristi
2016-06-05 19:32 ` [PATCH 33/45] block: prepare elevator " mchristi
2016-06-05 19:32 ` [PATCH 34/45] blkg_rwstat: separate op from flags mchristi
2016-06-05 19:32 ` [PATCH 35/45] block: convert merge/insert code to check for REQ_OPs mchristi
2016-06-05 19:32 ` [PATCH 36/45] block: convert is_sync helpers to use REQ_OPs mchristi
2016-06-05 19:32 ` [PATCH 37/45] drivers: use req op accessor mchristi
2016-06-06 6:50 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 38/45] blktrace: use op accessors mchristi
2016-06-05 19:32 ` [PATCH 39/45] ide cd: do not set REQ_WRITE on requests mchristi
2016-06-05 19:32 ` [PATCH 40/45] block: move bio io prio to a new field mchristi
2016-06-06 6:51 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 41/45] block, drivers, fs: shrink bi_rw from long to int mchristi
2016-06-06 6:51 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 42/45] block, fs, drivers: remove REQ_OP compat defs and related code mchristi
2016-06-05 20:37 ` kbuild test robot
2016-06-05 21:43 ` kbuild test robot
2016-06-05 21:49 ` kbuild test robot
2016-06-06 6:53 ` Hannes Reinecke
2016-06-05 19:32 ` [PATCH 43/45] block, drivers: add REQ_OP_FLUSH operation mchristi
2016-06-05 19:32 ` [PATCH 44/45] block: do not use REQ_FLUSH for tracking flush support mchristi
2016-06-05 19:32 ` [PATCH 45/45] block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH mchristi
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