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During pool export flush the ARC asynchronously #16215

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During pool export flush the ARC asynchronously #16215

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829bd07
During pool export flush the ARC asynchronously
don-brady Jun 26, 2024
1b4e0ff
Guarantee that spa_load_guid is unique
don-brady Jun 26, 2024
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9 changes: 9 additions & 0 deletions include/sys/arc.h
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Original file line number Diff line number Diff line change
Expand Up @@ -63,8 +63,15 @@ extern "C" {
(hdr)->b_psize = ((x) >> SPA_MINBLOCKSHIFT); \
} while (0)

/* The asize in the header is only used by L2 cache */
#define HDR_SET_ASIZE(hdr, x) do { \
ASSERT(IS_P2ALIGNED((x), 1U << SPA_MINBLOCKSHIFT)); \
(hdr)->b_asize = ((x) >> SPA_MINBLOCKSHIFT); \
} while (0)

#define HDR_GET_LSIZE(hdr) ((hdr)->b_lsize << SPA_MINBLOCKSHIFT)
#define HDR_GET_PSIZE(hdr) ((hdr)->b_psize << SPA_MINBLOCKSHIFT)
#define HDR_GET_ASIZE(hdr) ((hdr)->b_asize << SPA_MINBLOCKSHIFT)

typedef struct arc_buf_hdr arc_buf_hdr_t;
typedef struct arc_buf arc_buf_t;
Expand Down Expand Up @@ -322,8 +329,10 @@ void arc_freed(spa_t *spa, const blkptr_t *bp);
int arc_cached(spa_t *spa, const blkptr_t *bp);

void arc_flush(spa_t *spa, boolean_t retry);
void arc_flush_async(spa_t *spa);
void arc_tempreserve_clear(uint64_t reserve);
int arc_tempreserve_space(spa_t *spa, uint64_t reserve, uint64_t txg);
boolean_t arc_async_flush_guid_inuse(uint64_t load_guid);

uint64_t arc_all_memory(void);
uint64_t arc_default_max(uint64_t min, uint64_t allmem);
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8 changes: 4 additions & 4 deletions include/sys/arc_impl.h
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Expand Up @@ -378,8 +378,8 @@ typedef struct l2arc_lb_ptr_buf {
* L2ARC Internals
*/
typedef struct l2arc_dev {
vdev_t *l2ad_vdev; /* vdev */
spa_t *l2ad_spa; /* spa */
vdev_t *l2ad_vdev; /* can be NULL during remove */
spa_t *l2ad_spa; /* can be NULL during remove */
uint64_t l2ad_hand; /* next write location */
uint64_t l2ad_start; /* first addr on device */
uint64_t l2ad_end; /* last addr on device */
Expand Down Expand Up @@ -475,8 +475,8 @@ struct arc_buf_hdr {

arc_buf_contents_t b_type;
uint8_t b_complevel;
uint8_t b_reserved1; /* used for 4 byte alignment */
uint16_t b_reserved2; /* used for 4 byte alignment */
uint8_t b_reserved1; /* used for 4 byte alignment */
uint16_t b_asize; /* alignment or L2-only asize */
arc_buf_hdr_t *b_hash_next;
arc_flags_t b_flags;

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1 change: 1 addition & 0 deletions include/sys/spa.h
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Expand Up @@ -1102,6 +1102,7 @@ extern boolean_t spa_guid_exists(uint64_t pool_guid, uint64_t device_guid);
extern char *spa_strdup(const char *);
extern void spa_strfree(char *);
extern uint64_t spa_generate_guid(spa_t *spa);
extern uint64_t spa_generate_load_guid(void);
extern void snprintf_blkptr(char *buf, size_t buflen, const blkptr_t *bp);
extern void spa_freeze(spa_t *spa);
extern int spa_change_guid(spa_t *spa, const uint64_t *guidp);
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