+ net-convert-sunrpc-from-pagevec-to-folio_batch.patch added to mm-unstable branch

+ net-convert-sunrpc-from-pagevec-to-folio_batch.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: net: convert sunrpc from pagevec to folio_batch
has been added to the -mm mm-unstable branch.  Its filename is
     net-convert-sunrpc-from-pagevec-to-folio_batch.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/net-convert-sunrpc-from-pagevec-to-folio_batch.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Subject: net: convert sunrpc from pagevec to folio_batch
Date: Wed, 21 Jun 2023 17:45:53 +0100

Remove the last usage of pagevecs.  There is a slight change here; we now
free the folio_batch as soon as it fills up instead of freeing the
folio_batch when we try to add a page to a full batch.  This should have
no effect in practice.

Link: https://lkml.kernel.org/r/20230621164557.3510324-10-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/sunrpc/svc.h |    2 +-
 net/sunrpc/svc.c           |   10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

--- a/include/linux/sunrpc/svc.h~net-convert-sunrpc-from-pagevec-to-folio_batch
+++ a/include/linux/sunrpc/svc.h
@@ -223,7 +223,7 @@ struct svc_rqst {
 	struct page *		*rq_next_page; /* next reply page to use */
 	struct page *		*rq_page_end;  /* one past the last page */
 
-	struct pagevec		rq_pvec;
+	struct folio_batch	rq_fbatch;
 	struct kvec		rq_vec[RPCSVC_MAXPAGES]; /* generally useful.. */
 	struct bio_vec		rq_bvec[RPCSVC_MAXPAGES];
 
--- a/net/sunrpc/svc.c~net-convert-sunrpc-from-pagevec-to-folio_batch
+++ a/net/sunrpc/svc.c
@@ -649,7 +649,7 @@ svc_rqst_alloc(struct svc_serv *serv, st
 	if (!rqstp)
 		return rqstp;
 
-	pagevec_init(&rqstp->rq_pvec);
+	folio_batch_init(&rqstp->rq_fbatch);
 
 	__set_bit(RQ_BUSY, &rqstp->rq_flags);
 	rqstp->rq_server = serv;
@@ -860,9 +860,9 @@ bool svc_rqst_replace_page(struct svc_rq
 	}
 
 	if (*rqstp->rq_next_page) {
-		if (!pagevec_space(&rqstp->rq_pvec))
-			__pagevec_release(&rqstp->rq_pvec);
-		pagevec_add(&rqstp->rq_pvec, *rqstp->rq_next_page);
+		if (!folio_batch_add(&rqstp->rq_fbatch,
+				page_folio(*rqstp->rq_next_page)))
+			__folio_batch_release(&rqstp->rq_fbatch);
 	}
 
 	get_page(page);
@@ -896,7 +896,7 @@ void svc_rqst_release_pages(struct svc_r
 void
 svc_rqst_free(struct svc_rqst *rqstp)
 {
-	pagevec_release(&rqstp->rq_pvec);
+	folio_batch_release(&rqstp->rq_fbatch);
 	svc_release_buffer(rqstp);
 	if (rqstp->rq_scratch_page)
 		put_page(rqstp->rq_scratch_page);
_

Patches currently in -mm which might be from willy@infradead.org are

afs-convert-pagevec-to-folio_batch-in-afs_extend_writeback.patch
mm-add-__folio_batch_release.patch
scatterlist-add-sg_set_folio.patch
i915-convert-shmem_sg_free_table-to-use-a-folio_batch.patch
drm-convert-drm_gem_put_pages-to-use-a-folio_batch.patch
mm-remove-check_move_unevictable_pages.patch
pagevec-rename-fbatch_count.patch
i915-convert-i915_gpu_error-to-use-a-folio_batch.patch
net-convert-sunrpc-from-pagevec-to-folio_batch.patch
mm-remove-struct-pagevec.patch
mm-rename-invalidate_mapping_pagevec-to-mapping_try_invalidate.patch
mm-remove-references-to-pagevec.patch
mm-remove-unnecessary-pagevec-includes.patch