~hc/RK356X_SDK_RELEASE.git

..	..	@@ -1,3 +1,4 @@
	1	+// SPDX-License-Identifier: GPL-2.0-only
1	2	#include <linux/export.h>
2	3	#include <linux/fs.h>
3	4	#include <linux/fs_stack.h>
..	..	@@ -21,11 +22,10 @@
21	22	i_size = i_size_read(src);
22	23
23	24	/*
24		- * But if CONFIG_LBDAF (on 32-bit), we ought to make an effort to
25		- * keep the two halves of i_blocks in sync despite SMP or PREEMPT -
26		- * though stat's generic_fillattr() doesn't bother, and we won't be
27		- * applying quotas (where i_blocks does become important) at the
28		- * upper level.
	25	+ * But on 32-bit, we ought to make an effort to keep the two halves of
	26	+ * i_blocks in sync despite SMP or PREEMPTION - though stat's
	27	+ * generic_fillattr() doesn't bother, and we won't be applying quotas
	28	+ * (where i_blocks does become important) at the upper level.
29	29	*
30	30	* We don't actually know what locking is used at the lower level;
31	31	* but if it's a filesystem that supports quotas, it will be using
..	..	@@ -38,15 +38,15 @@
38	38	spin_unlock(&src->i_lock);
39	39
40	40	/*
41		- * If CONFIG_SMP or CONFIG_PREEMPT on 32-bit, it's vital for
	41	+ * If CONFIG_SMP or CONFIG_PREEMPTION on 32-bit, it's vital for
42	42	* fsstack_copy_inode_size() to hold some lock around
43	43	* i_size_write(), otherwise i_size_read() may spin forever (see
44	44	* include/linux/fs.h). We don't necessarily hold i_mutex when this
45	45	* is called, so take i_lock for that case.
46	46	*
47		- * And if CONFIG_LBDAF (on 32-bit), continue our effort to keep the
48		- * two halves of i_blocks in sync despite SMP or PREEMPT: use i_lock
49		- * for that case too, and do both at once by combining the tests.
	47	+ * And if on 32-bit, continue our effort to keep the two halves of
	48	+ * i_blocks in sync despite SMP or PREEMPTION: use i_lock for that case
	49	+ * too, and do both at once by combining the tests.
50	50	*
51	51	* There is none of this locking overhead in the 64-bit case.
52	52	*/