diff options
| author | Jan Kara <jack@suse.cz> | 2026-03-26 10:54:25 +0100 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2026-03-26 15:03:31 +0100 |
| commit | c86f5d25514c2a60fcf5ea0aa11c5d8bd1a313ef (patch) | |
| tree | ca961a0d75763eee6b8545b6c21ff4d327ca7240 /include/linux/buffer_head.h | |
| parent | 521bea7cec8a79684402d555caab408ed43171d5 (diff) | |
fs: Make bhs point to mapping_metadata_bhs
Make buffer heads point to mapping_metadata_bhs instead of struct
address_space. This makes the code more self contained. For the (only)
case of IO error handling where we really need to reach struct
address_space add a pointer to the mapping from mapping_metadata_bhs.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-73-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'include/linux/buffer_head.h')
| -rw-r--r-- | include/linux/buffer_head.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 631bf971efc0..20636599d858 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -73,8 +73,8 @@ struct buffer_head { bh_end_io_t *b_end_io; /* I/O completion */ void *b_private; /* reserved for b_end_io */ struct list_head b_assoc_buffers; /* associated with another mapping */ - struct address_space *b_assoc_map; /* mapping this buffer is - associated with */ + struct mapping_metadata_bhs *b_mmb; /* head of the list of metadata bhs + * this buffer is associated with */ atomic_t b_count; /* users using this buffer_head */ spinlock_t b_uptodate_lock; /* Used by the first bh in a page, to * serialise IO completion of other |