mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-02 07:04:24 +00:00
Code Issues Releases Wiki Activity

bcachefs: Trust btree alloc info at runtime

Browse source 
This lets us avoid a cache miss in the write path.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-10-28 19:33:59 -04:00 committed by Kent Overstreet
parent c4e065c23c
commit ff929515cc
3 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
fs/bcachefs/bcachefs.h
View file

@ -499,6 +499,7 @@ enum {
/* misc: */
BCH_FS_BDEV_MOUNTED,
BCH_FS_FIXED_GENS,
BCH_FS_ALLOC_WRITTEN,
BCH_FS_REBUILD_REPLICAS,
BCH_FS_HOLD_BTREE_WRITES,
};

2
fs/bcachefs/buckets.c
View file

@ -1456,7 +1456,7 @@ static int bch2_trans_mark_pointer(struct btree_trans *trans,
if (ret < 0)
return ret;
if (!ret) {
if (!ret && unlikely(!test_bit(BCH_FS_ALLOC_WRITTEN, &c->flags))) {
/*
* During journal replay, and if gc repairs alloc info at
* runtime, the alloc info in the btree might not be up to date

2
fs/bcachefs/recovery.c
View file

@ -864,6 +864,8 @@ int bch2_fs_recovery(struct bch_fs *c)
goto err;
}
bch_verbose(c, "alloc write done");
set_bit(BCH_FS_ALLOC_WRITTEN, &c->flags);
}
if (!c->sb.clean) {