diff options
Diffstat (limited to 'fs/btrfs/fs.h')
| -rw-r--r-- | fs/btrfs/fs.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/fs/btrfs/fs.h b/fs/btrfs/fs.h index 814bbc9417d2..0f7e1ef27891 100644 --- a/fs/btrfs/fs.h +++ b/fs/btrfs/fs.h @@ -29,6 +29,7 @@ #include "extent-io-tree.h" #include "async-thread.h" #include "block-rsv.h" +#include "messages.h" struct inode; struct super_block; @@ -73,6 +74,13 @@ struct btrfs_space_info; #define BTRFS_SUPER_INFO_SIZE 4096 static_assert(sizeof(struct btrfs_super_block) == BTRFS_SUPER_INFO_SIZE); +/* Array of bytes with variable length, hexadecimal format 0x1234 */ +#define BTRFS_CSUM_FMT "0x%*phN" +#define BTRFS_CSUM_FMT_VALUE(size, bytes) size, bytes + +#define BTRFS_KEY_FMT "(%llu %u %llu)" +#define BTRFS_KEY_FMT_VALUE(key) (key)->objectid, (key)->type, (key)->offset + /* * Number of metadata items necessary for an unlink operation: * @@ -124,6 +132,12 @@ enum { /* No more delayed iput can be queued. */ BTRFS_FS_STATE_NO_DELAYED_IPUT, + /* + * Emergency shutdown, a step further than transaction aborted by + * rejecting all operations. + */ + BTRFS_FS_STATE_EMERGENCY_SHUTDOWN, + BTRFS_FS_STATE_COUNT }; @@ -644,7 +658,6 @@ struct btrfs_fs_info { struct workqueue_struct *endio_workers; struct workqueue_struct *endio_meta_workers; struct workqueue_struct *rmw_workers; - struct workqueue_struct *compressed_write_workers; struct btrfs_workqueue *endio_write_workers; struct btrfs_workqueue *endio_freespace_worker; struct btrfs_workqueue *caching_workers; @@ -1120,6 +1133,27 @@ static inline void btrfs_wake_unfinished_drop(struct btrfs_fs_info *fs_info) (unlikely(test_bit(BTRFS_FS_STATE_LOG_CLEANUP_ERROR, \ &(fs_info)->fs_state))) +static inline bool btrfs_is_shutdown(struct btrfs_fs_info *fs_info) +{ + return test_bit(BTRFS_FS_STATE_EMERGENCY_SHUTDOWN, &fs_info->fs_state); +} + +static inline void btrfs_force_shutdown(struct btrfs_fs_info *fs_info) +{ + /* + * Here we do not want to use handle_fs_error(), which will mark the fs + * read-only. + * Some call sites like shutdown ioctl will mark the fs shutdown when + * the fs is frozen. But thaw path will handle RO and RW fs + * differently. + * + * So here we only mark the fs error without flipping it RO. + */ + WRITE_ONCE(fs_info->fs_error, -EIO); + if (!test_and_set_bit(BTRFS_FS_STATE_EMERGENCY_SHUTDOWN, &fs_info->fs_state)) + btrfs_crit(fs_info, "emergency shutdown"); +} + /* * We use folio flag owner_2 to indicate there is an ordered extent with * unfinished IO. |