| Message ID | 75f3da872a8c1094ef0f6ed93aac9bf774ef895b.1709554485.git.jth@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] btrfs: zoned: use zone aware sb location for scrub | expand |
On Mon, Mar 04, 2024 at 01:15:24PM +0100, Johannes Thumshirn wrote: > At the moment scrub_supers() doesn't grab the super block's location via > the zoned device aware btrfs_sb_log_location() but via btrfs_sb_offset(). > > This leads to checksum errors on 'scrub' as we're not accessing the > correct location of the super block. > > So use btrfs_sb_log_location() for getting the super blocks location on > scrub. > > Reported-by: WA AM <waautomata@gmail.com> > Link: http://lore.kernel.org/linux-btrfs/CANU2Z0EvUzfYxczLgGUiREoMndE9WdQnbaawV5Fv5gNXptPUKw@mail.gmail.com > Signed-off-by: Johannes Thumshirn <jth@kernel.org> > --- > Changes to v1: > - Increase super_errors > - Don't break out after 1st error > Link to v1: > - https://lore.kernel.org/linux-btrfs/933562c5bf37ad3e03f1a6b2ab5a9eb741ee0192.1709206779.git.johannes.thumshirn@wdc.com > --- > fs/btrfs/scrub.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c > index c4bd0e60db59..ee04bd8f5a46 100644 > --- a/fs/btrfs/scrub.c > +++ b/fs/btrfs/scrub.c > @@ -2812,7 +2812,13 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx, > gen = btrfs_get_last_trans_committed(fs_info); > > for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) { > - bytenr = btrfs_sb_offset(i); In Qu's version of fix https://lore.kernel.org/linux-btrfs/cf93c10bb94755f1bee7e70b333db72ba9f0896b.1709629215.git.wqu@suse.com/ > + ret = btrfs_sb_log_location(scrub_dev, i, 0, &bytenr); > + if (ret) { > + spin_lock(&sctx->stat_lock); > + sctx->stat.super_errors++; > + spin_unlock(&sctx->stat_lock); there's ENOENT handled and not accounted as error, which sounds correct. > + continue; > + } > if (bytenr + BTRFS_SUPER_INFO_SIZE > > scrub_dev->commit_total_bytes) > break; > -- > 2.35.3 >
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index c4bd0e60db59..ee04bd8f5a46 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2812,7 +2812,13 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx, gen = btrfs_get_last_trans_committed(fs_info); for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) { - bytenr = btrfs_sb_offset(i); + ret = btrfs_sb_log_location(scrub_dev, i, 0, &bytenr); + if (ret) { + spin_lock(&sctx->stat_lock); + sctx->stat.super_errors++; + spin_unlock(&sctx->stat_lock); + continue; + } if (bytenr + BTRFS_SUPER_INFO_SIZE > scrub_dev->commit_total_bytes) break;
At the moment scrub_supers() doesn't grab the super block's location via the zoned device aware btrfs_sb_log_location() but via btrfs_sb_offset(). This leads to checksum errors on 'scrub' as we're not accessing the correct location of the super block. So use btrfs_sb_log_location() for getting the super blocks location on scrub. Reported-by: WA AM <waautomata@gmail.com> Link: http://lore.kernel.org/linux-btrfs/CANU2Z0EvUzfYxczLgGUiREoMndE9WdQnbaawV5Fv5gNXptPUKw@mail.gmail.com Signed-off-by: Johannes Thumshirn <jth@kernel.org> --- Changes to v1: - Increase super_errors - Don't break out after 1st error Link to v1: - https://lore.kernel.org/linux-btrfs/933562c5bf37ad3e03f1a6b2ab5a9eb741ee0192.1709206779.git.johannes.thumshirn@wdc.com --- fs/btrfs/scrub.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)