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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-02-09 20:21:45 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:50 +0300 |
| commit | d94189ad568f6cbd80d372cf7aa6e4898b6c5c17 (patch) | |
| tree | 4e23dbd00746c19092bcdb8604903cab7049a83b /fs/bcachefs/super.h | |
| parent | dd81a060eb0680e09d133b81db54b90442c32b5e (diff) | |
| download | linux-d94189ad568f6cbd80d372cf7aa6e4898b6c5c17.tar.xz | |
bcachefs: Debug mode for c->writes references
This adds a debug mode where we split up the c->writes refcount into
distinct refcounts for every codepath that takes a reference, and adds
sysfs code to print the value of each ref.
This will make it easier to debug shutdown hangs due to refcount leaks.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/super.h')
| -rw-r--r-- | fs/bcachefs/super.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/bcachefs/super.h b/fs/bcachefs/super.h index d66de6f589ac..5e6fbbfd2d43 100644 --- a/fs/bcachefs/super.h +++ b/fs/bcachefs/super.h @@ -250,7 +250,8 @@ int bch2_fs_read_write_early(struct bch_fs *); */ static inline void bch2_fs_lazy_rw(struct bch_fs *c) { - if (percpu_ref_is_zero(&c->writes)) + if (!test_bit(BCH_FS_RW, &c->flags) && + !test_bit(BCH_FS_WAS_RW, &c->flags)) bch2_fs_read_write_early(c); } |