rk3568 dts

hc

2023-11-06 1622ff3442ff6aecc1f538cda437379d1f6a4a93

 kernel/fs/buffer.c
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@@ -275,8 +275,7 @@
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 	 * decide that the page is now completely done.
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 	 */
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 	first = page_buffers(page);
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-	local_irq_save(flags);
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-	bit_spin_lock(BH_Uptodate_Lock, &first->b_state);
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+	flags = bh_uptodate_lock_irqsave(first);
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 	clear_buffer_async_read(bh);
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 	unlock_buffer(bh);
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 	tmp = bh;
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@@ -289,8 +288,7 @@
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 		}
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 		tmp = tmp->b_this_page;
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 	} while (tmp != bh);
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-	bit_spin_unlock(BH_Uptodate_Lock, &first->b_state);
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-	local_irq_restore(flags);
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+	bh_uptodate_unlock_irqrestore(first, flags);
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 	/*
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 	 * If none of the buffers had errors and they are all
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@@ -302,9 +300,7 @@
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 	return;
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 still_busy:
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-	bit_spin_unlock(BH_Uptodate_Lock, &first->b_state);
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-	local_irq_restore(flags);
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-	return;
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+	bh_uptodate_unlock_irqrestore(first, flags);
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 }
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 /*
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@@ -331,8 +327,7 @@
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 	}
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 	first = page_buffers(page);
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-	local_irq_save(flags);
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-	bit_spin_lock(BH_Uptodate_Lock, &first->b_state);
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+	flags = bh_uptodate_lock_irqsave(first);
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 	clear_buffer_async_write(bh);
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 	unlock_buffer(bh);
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@@ -344,15 +339,12 @@
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 		}
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 		tmp = tmp->b_this_page;
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 	}
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-	bit_spin_unlock(BH_Uptodate_Lock, &first->b_state);
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-	local_irq_restore(flags);
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+	bh_uptodate_unlock_irqrestore(first, flags);
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 	end_page_writeback(page);
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 	return;
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 still_busy:
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-	bit_spin_unlock(BH_Uptodate_Lock, &first->b_state);
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-	local_irq_restore(flags);
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-	return;
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+	bh_uptodate_unlock_irqrestore(first, flags);
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 }
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 EXPORT_SYMBOL(end_buffer_async_write);
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@@ -3375,6 +3367,7 @@
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 	struct buffer_head *ret = kmem_cache_zalloc(bh_cachep, gfp_flags);
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 	if (ret) {
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 		INIT_LIST_HEAD(&ret->b_assoc_buffers);
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+		buffer_head_init_locks(ret);
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 		preempt_disable();
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 		__this_cpu_inc(bh_accounting.nr);
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 		recalc_bh_state();