Hi Greg and stable team,
Here's a backport of relocation fixes that went into 5.16 aimed at the 5.15.x
series of stable kernels. It's a problem people are currently running into
when using btrfs on a zoned block device.
The following patches have been backported:
960a3166aed0 ("btrfs: zoned: allow preallocation for relocation inodes")
2adada886b26 ("btrfs: check for relocation inodes on zoned btrfs in should_nocow")
e6d261e3b1f7 ("btrfs: zoned: use regular writes for relocation")
35156d852762 ("btrfs: zoned: only allow one process to add pages to a relocation inode")
c2707a255623 ("btrfs: zoned: add a dedicated data relocation block group")
37f00a6d2e9c ("btrfs: introduce btrfs_is_data_reloc_root")
The backport has seen the usual regression testing with xfstests.
Johannes Thumshirn (6):
btrfs: introduce btrfs_is_data_reloc_root
btrfs: zoned: add a dedicated data relocation block group
btrfs: zoned: only allow one process to add pages to a relocation
inode
btrfs: zoned: use regular writes for relocation
btrfs: check for relocation inodes on zoned btrfs in should_nocow
btrfs: zoned: allow preallocation for relocation inodes
fs/btrfs/block-group.c | 1 +
fs/btrfs/ctree.h | 12 +++++++++
fs/btrfs/disk-io.c | 3 ++-
fs/btrfs/extent-tree.c | 56 +++++++++++++++++++++++++++++++++++++++---
fs/btrfs/extent_io.c | 11 +++++++++
fs/btrfs/inode.c | 29 +++++++++++++---------
fs/btrfs/relocation.c | 38 +++-------------------------
fs/btrfs/zoned.c | 21 ++++++++++++++++
fs/btrfs/zoned.h | 3 +++
9 files changed, 123 insertions(+), 51 deletions(-)
--
2.32.0
