Linux 4.19-rc3+ compat: Remove refcount_t compat

torvalds/linux@59b57717f ("blkcg: delay blkg destruction until
after writeback has finished") added a refcount_t to the blkcg
structure. Due to the refcount_t compatibility code, zfs_refcount_t
was used by mistake.

Resolve this by removing the compatibility code and replacing the
occurrences of refcount_t with zfs_refcount_t.

Reviewed-by: Franz Pletz <fpletz@fnordicwalking.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Closes #7885 
Closes #7932
This commit is contained in:
Tim Schumacher
2018-09-26 19:29:26 +02:00
committed by Brian Behlendorf
parent 7a23c81342
commit c13060e478
32 changed files with 115 additions and 126 deletions
+8 -8
View File
@@ -2403,7 +2403,7 @@ add_reference(arc_buf_hdr_t *hdr, void *tag)
state = hdr->b_l1hdr.b_state;
if ((refcount_add(&hdr->b_l1hdr.b_refcnt, tag) == 1) &&
if ((zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, tag) == 1) &&
(state != arc_anon)) {
/* We don't use the L2-only state list. */
if (state != arc_l2c_only) {
@@ -2997,7 +2997,7 @@ arc_return_buf(arc_buf_t *buf, void *tag)
ASSERT3P(buf->b_data, !=, NULL);
ASSERT(HDR_HAS_L1HDR(hdr));
(void) refcount_add(&hdr->b_l1hdr.b_refcnt, tag);
(void) zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, tag);
(void) refcount_remove(&hdr->b_l1hdr.b_refcnt, arc_onloan_tag);
arc_loaned_bytes_update(-arc_buf_size(buf));
@@ -3011,7 +3011,7 @@ arc_loan_inuse_buf(arc_buf_t *buf, void *tag)
ASSERT3P(buf->b_data, !=, NULL);
ASSERT(HDR_HAS_L1HDR(hdr));
(void) refcount_add(&hdr->b_l1hdr.b_refcnt, arc_onloan_tag);
(void) zfs_refcount_add(&hdr->b_l1hdr.b_refcnt, arc_onloan_tag);
(void) refcount_remove(&hdr->b_l1hdr.b_refcnt, tag);
arc_loaned_bytes_update(arc_buf_size(buf));
@@ -3558,11 +3558,11 @@ arc_hdr_realloc_crypt(arc_buf_hdr_t *hdr, boolean_t need_crypt)
nhdr->b_l1hdr.b_pabd = hdr->b_l1hdr.b_pabd;
/*
* This refcount_add() exists only to ensure that the individual
* This zfs_refcount_add() exists only to ensure that the individual
* arc buffers always point to a header that is referenced, avoiding
* a small race condition that could trigger ASSERTs.
*/
(void) refcount_add(&nhdr->b_l1hdr.b_refcnt, FTAG);
(void) zfs_refcount_add(&nhdr->b_l1hdr.b_refcnt, FTAG);
nhdr->b_l1hdr.b_buf = hdr->b_l1hdr.b_buf;
for (buf = nhdr->b_l1hdr.b_buf; buf != NULL; buf = buf->b_next) {
mutex_enter(&buf->b_evict_lock);
@@ -4313,7 +4313,7 @@ arc_prune_async(int64_t adjust)
if (refcount_count(&ap->p_refcnt) >= 2)
continue;
refcount_add(&ap->p_refcnt, ap->p_pfunc);
zfs_refcount_add(&ap->p_refcnt, ap->p_pfunc);
ap->p_adjust = adjust;
if (taskq_dispatch(arc_prune_taskq, arc_prune_task,
ap, TQ_SLEEP) == TASKQID_INVALID) {
@@ -6536,7 +6536,7 @@ arc_add_prune_callback(arc_prune_func_t *func, void *private)
refcount_create(&p->p_refcnt);
mutex_enter(&arc_prune_mtx);
refcount_add(&p->p_refcnt, &arc_prune_list);
zfs_refcount_add(&p->p_refcnt, &arc_prune_list);
list_insert_head(&arc_prune_list, p);
mutex_exit(&arc_prune_mtx);
@@ -6808,7 +6808,7 @@ arc_release(arc_buf_t *buf, void *tag)
nhdr->b_l1hdr.b_mfu_hits = 0;
nhdr->b_l1hdr.b_mfu_ghost_hits = 0;
nhdr->b_l1hdr.b_l2_hits = 0;
(void) refcount_add(&nhdr->b_l1hdr.b_refcnt, tag);
(void) zfs_refcount_add(&nhdr->b_l1hdr.b_refcnt, tag);
buf->b_hdr = nhdr;
mutex_exit(&buf->b_evict_lock);