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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-11-25 13:26:56 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2019-11-25 13:26:56 -0800 |
| commit | 976e3645923bdd2fe7893aae33fd7a21098bfb28 (patch) | |
| tree | d1cb24e4c9743beef15a4796070aca7e2c08228a /include/linux/elevator.h | |
| parent | 8791663435e7fea896d8ca0f56fd64976d2089ff (diff) | |
| parent | 71c296f6d5b33faf9867d04c6c5d75c7e56b886b (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 5.5 merge window.
Diffstat (limited to 'include/linux/elevator.h')
| -rw-r--r-- | include/linux/elevator.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/elevator.h b/include/linux/elevator.h index 1dd014c9c87b..901bda352dcb 100644 --- a/include/linux/elevator.h +++ b/include/linux/elevator.h @@ -76,6 +76,7 @@ struct elevator_type struct elv_fs_entry *elevator_attrs; const char *elevator_name; const char *elevator_alias; + const unsigned int elevator_features; struct module *elevator_owner; #ifdef CONFIG_BLK_DEBUG_FS const struct blk_mq_debugfs_attr *queue_debugfs_attrs; @@ -165,5 +166,12 @@ extern struct request *elv_rb_find(struct rb_root *, sector_t); #define rq_entry_fifo(ptr) list_entry((ptr), struct request, queuelist) #define rq_fifo_clear(rq) list_del_init(&(rq)->queuelist) +/* + * Elevator features. + */ + +/* Supports zoned block devices sequential write constraint */ +#define ELEVATOR_F_ZBD_SEQ_WRITE (1U << 0) + #endif /* CONFIG_BLOCK */ #endif |