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Merge 0d508cefcd ("vdpa/mlx5: Fix mlx5_vdpa_get_config() endianness on big-endian machines") into android16-6.12-lts

Browse Source 
Steps on the way to 6.12.31

Resolves merge conflicts in:
	drivers/media/usb/uvc/uvc_ctrl.c

Change-Id: I663a7a27e554e5a9d426532ff17f7dffc9619d22
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman
2025-07-02 07:03:57 +00:00
parent 3aa4e29eea 0d508cefcd
commit 05cc417ff3
78 changed files with 853 additions and 320 deletions
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kernel/rcu/rcu.h
+1 -1
View File
@@ -162,7 +162,7 @@ static inline bool rcu_seq_done_exact(unsigned long *sp, unsigned long s)
{
unsigned long cur_s = READ_ONCE(*sp);
return ULONG_CMP_GE(cur_s, s) || ULONG_CMP_LT(cur_s, s - (2 * RCU_SEQ_STATE_MASK + 1));
return ULONG_CMP_GE(cur_s, s) || ULONG_CMP_LT(cur_s, s - (3 * RCU_SEQ_STATE_MASK + 1));
}
/*
kernel/rcu/tree.c
+11 -4
View File
@@ -1822,10 +1822,14 @@ static noinline_for_stack bool rcu_gp_init(void)
/* Advance to a new grace period and initialize state. */
record_gp_stall_check_time();
/*
* A new wait segment must be started before gp_seq advanced, so
* that previous gp waiters won't observe the new gp_seq.
*/
start_new_poll = rcu_sr_normal_gp_init();
/* Record GP times before starting GP, hence rcu_seq_start(). */
rcu_seq_start(&rcu_state.gp_seq);
ASSERT_EXCLUSIVE_WRITER(rcu_state.gp_seq);
start_new_poll = rcu_sr_normal_gp_init();
trace_rcu_grace_period(rcu_state.name, rcu_state.gp_seq, TPS("start"));
rcu_poll_gp_seq_start(&rcu_state.gp_seq_polled_snap);
raw_spin_unlock_irq_rcu_node(rnp);
@@ -4183,14 +4187,17 @@ EXPORT_SYMBOL_GPL(get_state_synchronize_rcu);
*/
void get_state_synchronize_rcu_full(struct rcu_gp_oldstate *rgosp)
{
struct rcu_node *rnp = rcu_get_root();
/*
* Any prior manipulation of RCU-protected data must happen
* before the loads from ->gp_seq and ->expedited_sequence.
*/
smp_mb(); /* ^^^ */
rgosp->rgos_norm = rcu_seq_snap(&rnp->gp_seq);
// Yes, rcu_state.gp_seq, not rnp_root->gp_seq, the latter's use
// in poll_state_synchronize_rcu_full() notwithstanding. Use of
// the latter here would result in too-short grace periods due to
// interactions with newly onlined CPUs.
rgosp->rgos_norm = rcu_seq_snap(&rcu_state.gp_seq);
rgosp->rgos_exp = rcu_seq_snap(&rcu_state.expedited_sequence);
}
EXPORT_SYMBOL_GPL(get_state_synchronize_rcu_full);