| Message ID | 20241007115248.16434-1-jth@kernel.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | btrfs: RST scrub fixes for prealloc | expand |
On Mon, Oct 07, 2024 at 01:52:46PM +0200, Johannes Thumshirn wrote: > From: Johannes Thumshirn <johannes.thumshirn@wdc.com> > > When scrubbing a non-zoned RAID stripe tree filesystem, the RST specific scrub > code finds false positives becuase preallocated extents are not backed by the > stripe-tree and so the lookup failes. > > These patches address the issue by a) changing RST lookup failures from > ENOENT to ENODATA and b) skipping ENODATA on RST mapping errors from the scrub > side. > > This aproach was suggested by Josef in > https://lore.kernel.org/linux-btrfs/20240923152705.GB159452@perftesting/ > > Johannes Thumshirn (2): > btrfs: return ENODATA in case RST lookup fails > btrfs: scrub: skip initial RAID stripe-tree lookup errors > Reviewed-by: Josef Bacik <josef@toxicpanda.com> Thanks, Josef
From: Johannes Thumshirn <johannes.thumshirn@wdc.com> When scrubbing a non-zoned RAID stripe tree filesystem, the RST specific scrub code finds false positives becuase preallocated extents are not backed by the stripe-tree and so the lookup failes. These patches address the issue by a) changing RST lookup failures from ENOENT to ENODATA and b) skipping ENODATA on RST mapping errors from the scrub side. This aproach was suggested by Josef in https://lore.kernel.org/linux-btrfs/20240923152705.GB159452@perftesting/ Johannes Thumshirn (2): btrfs: return ENODATA in case RST lookup fails btrfs: scrub: skip initial RAID stripe-tree lookup errors fs/btrfs/raid-stripe-tree.c | 6 +++--- fs/btrfs/scrub.c | 6 ++++-- 2 files changed, 7 insertions(+), 5 deletions(-)