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[RFC,02/12] io_uring: define io_mapped_ubuf->acct_pages as unsigned integer

Message ID 20230301140611.163055-3-ming.lei@redhat.com (mailing list archive)
State New
Headers show
Series io_uring: add IORING_OP_FUSED_CMD | expand

Commit Message

Ming Lei March 1, 2023, 2:06 p.m. UTC 
Unsigned integer is enough(4G * 4k = 16TB) to hold nr_pages in one
io_mapped_ubuf.

This way will save one word for io_mapped_ubuf.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 io_uring/rsrc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h
index 2b8743645efc..774aca20326c 100644
--- a/io_uring/rsrc.h
+++ b/io_uring/rsrc.h
@@ -49,7 +49,7 @@  struct io_mapped_ubuf {
 	u64		ubuf;
 	u64		ubuf_end;
 	unsigned int	nr_bvecs;
-	unsigned long	acct_pages;
+	unsigned int	acct_pages;
 	struct bio_vec	bvec[];
 };