diff options
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index eb002a7656af..a16f9ae3c98a 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -432,7 +432,11 @@ enum { * goes into C_CONNECTED state. */ CONSIDER_RESYNC, + RS_PROGRESS, /* tell worker that resync made significant progress */ + RS_DONE, /* tell worker that resync is done */ + MD_NO_FUA, /* Users wants us to not use FUA/FLUSH on meta data dev */ + SUSPEND_IO, /* suspend application io */ BITMAP_IO, /* suspend application io; once no more io in flight, start bitmap io */ @@ -577,6 +581,7 @@ enum { * and potentially deadlock on, this drbd worker. */ DISCONNECT_SENT, + CONN_RS_PROGRESS, /* tell worker that resync made significant progress */ }; struct drbd_resource { @@ -1106,17 +1111,21 @@ struct bm_extent { /* in which _bitmap_ extent (resp. sector) the bit for a certain * _storage_ sector is located in */ #define BM_SECT_TO_EXT(x) ((x)>>(BM_EXT_SHIFT-9)) +#define BM_BIT_TO_EXT(x) ((x) >> (BM_EXT_SHIFT - BM_BLOCK_SHIFT)) -/* how much _storage_ sectors we have per bitmap sector */ +/* first storage sector a bitmap extent corresponds to */ #define BM_EXT_TO_SECT(x) ((sector_t)(x) << (BM_EXT_SHIFT-9)) +/* how much _storage_ sectors we have per bitmap extent */ #define BM_SECT_PER_EXT BM_EXT_TO_SECT(1) +/* how many bits are covered by one bitmap extent (resync extent) */ +#define BM_BITS_PER_EXT (1UL << (BM_EXT_SHIFT - BM_BLOCK_SHIFT)) + +#define BM_BLOCKS_PER_BM_EXT_MASK (BM_BITS_PER_EXT - 1) + /* in one sector of the bitmap, we have this many activity_log extents. */ #define AL_EXT_PER_BM_SECT (1 << (BM_EXT_SHIFT - AL_EXTENT_SHIFT)) -#define BM_BLOCKS_PER_BM_EXT_B (BM_EXT_SHIFT - BM_BLOCK_SHIFT) -#define BM_BLOCKS_PER_BM_EXT_MASK ((1<<BM_BLOCKS_PER_BM_EXT_B) - 1) - /* the extent in "PER_EXTENT" below is an activity log extent * we need that many (long words/bytes) to store the bitmap * of one AL_EXTENT_SIZE chunk of storage. @@ -1214,7 +1223,6 @@ extern unsigned long _drbd_bm_find_next(struct drbd_device *device, unsigned lon extern unsigned long _drbd_bm_find_next_zero(struct drbd_device *device, unsigned long bm_fo); extern unsigned long _drbd_bm_total_weight(struct drbd_device *device); extern unsigned long drbd_bm_total_weight(struct drbd_device *device); -extern int drbd_bm_rs_done(struct drbd_device *device); /* for receive_bitmap */ extern void drbd_bm_merge_lel(struct drbd_device *device, size_t offset, size_t number, unsigned long *buffer); @@ -1503,14 +1511,17 @@ extern int drbd_rs_del_all(struct drbd_device *device); extern void drbd_rs_failed_io(struct drbd_device *device, sector_t sector, int size); extern void drbd_advance_rs_marks(struct drbd_device *device, unsigned long still_to_go); -extern void __drbd_set_in_sync(struct drbd_device *device, sector_t sector, - int size, const char *file, const unsigned int line); + +enum update_sync_bits_mode { RECORD_RS_FAILED, SET_OUT_OF_SYNC, SET_IN_SYNC }; +extern int __drbd_change_sync(struct drbd_device *device, sector_t sector, int size, + enum update_sync_bits_mode mode, + const char *file, const unsigned int line); #define drbd_set_in_sync(device, sector, size) \ - __drbd_set_in_sync(device, sector, size, __FILE__, __LINE__) -extern int __drbd_set_out_of_sync(struct drbd_device *device, sector_t sector, - int size, const char *file, const unsigned int line); + __drbd_change_sync(device, sector, size, SET_IN_SYNC, __FILE__, __LINE__) #define drbd_set_out_of_sync(device, sector, size) \ - __drbd_set_out_of_sync(device, sector, size, __FILE__, __LINE__) + __drbd_change_sync(device, sector, size, SET_OUT_OF_SYNC, __FILE__, __LINE__) +#define drbd_rs_failed_io(device, sector, size) \ + __drbd_change_sync(device, sector, size, RECORD_RS_FAILED, __FILE__, __LINE__) extern void drbd_al_shrink(struct drbd_device *device); extern int drbd_initialize_al(struct drbd_device *, void *); @@ -1915,6 +1926,15 @@ static inline void _sub_unacked(struct drbd_device *device, int n, const char *f ERR_IF_CNT_IS_NEGATIVE(unacked_cnt, func, line); } +static inline bool is_sync_state(enum drbd_conns connection_state) +{ + return + (connection_state == C_SYNC_SOURCE + || connection_state == C_SYNC_TARGET + || connection_state == C_PAUSED_SYNC_S + || connection_state == C_PAUSED_SYNC_T); +} + /** * get_ldev() - Increase the ref count on device->ldev. Returns 0 if there is no ldev * @M: DRBD device. |
