From: jhubbard.send.patches@gmail.com
To: Jens Axboe <axboe@kernel.dk>, Jan Kara <jack@suse.cz>,
Christoph Hellwig <hch@infradead.org>,
Dave Chinner <dchinner@redhat.com>,
"Darrick J . Wong" <djwong@kernel.org>,
Theodore Ts'o <tytso@mit.edu>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Miklos Szeredi <miklos@szeredi.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Chaitanya Kulkarni <kch@nvidia.com>
Cc: linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-xfs@vger.kernel.org, linux-mm@kvack.org,
LKML <linux-kernel@vger.kernel.org>,
John Hubbard <jhubbard@nvidia.com>
Subject: [PATCH 5/6] NFS: direct-io: convert to FOLL_PIN pages
Date: Sun, 27 Feb 2022 01:34:33 -0800 [thread overview]
Message-ID: <20220227093434.2889464-6-jhubbard@nvidia.com> (raw)
In-Reply-To: <20220227093434.2889464-1-jhubbard@nvidia.com>
From: John Hubbard <jhubbard@nvidia.com>
Convert nfs-direct to use pin_user_pages_fast(), and unpin_user_pages(),
in place of get_user_pages_fast() and put_page().
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
fs/nfs/direct.c | 15 ++++-----------
1 file changed, 4 insertions(+), 11 deletions(-)
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index eabfdab543c8..42111a75c0f7 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -177,13 +177,6 @@ ssize_t nfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
return nfs_file_direct_write(iocb, iter);
}
-static void nfs_direct_release_pages(struct page **pages, unsigned int npages)
-{
- unsigned int i;
- for (i = 0; i < npages; i++)
- put_page(pages[i]);
-}
-
void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
struct nfs_direct_req *dreq)
{
@@ -367,7 +360,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
size_t pgbase;
unsigned npages, i;
- result = iov_iter_get_pages_alloc(iter, &pagevec,
+ result = iov_iter_pin_pages_alloc(iter, &pagevec,
rsize, &pgbase);
if (result < 0)
break;
@@ -398,7 +391,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
pos += req_len;
dreq->bytes_left -= req_len;
}
- nfs_direct_release_pages(pagevec, npages);
+ unpin_user_pages(pagevec, npages);
kvfree(pagevec);
if (result < 0)
break;
@@ -811,7 +804,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
size_t pgbase;
unsigned npages, i;
- result = iov_iter_get_pages_alloc(iter, &pagevec,
+ result = iov_iter_pin_pages_alloc(iter, &pagevec,
wsize, &pgbase);
if (result < 0)
break;
@@ -850,7 +843,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq,
pos += req_len;
dreq->bytes_left -= req_len;
}
- nfs_direct_release_pages(pagevec, npages);
+ unpin_user_pages(pagevec, npages);
kvfree(pagevec);
if (result < 0)
break;
--
2.35.1
next prev parent reply other threads:[~2022-02-27 9:34 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-27 9:34 [PATCH 0/6] block, fs: convert most Direct IO cases to FOLL_PIN jhubbard.send.patches
2022-02-27 9:34 ` [PATCH 1/6] mm/gup: introduce pin_user_page() jhubbard.send.patches
2022-02-27 9:34 ` [PATCH 2/6] iov_iter: new iov_iter_pin_pages*(), for FOLL_PIN pages jhubbard.send.patches
2022-02-27 21:57 ` Jens Axboe
2022-02-27 22:09 ` John Hubbard
2022-02-28 22:49 ` John Hubbard
2022-02-27 9:34 ` [PATCH 3/6] block, fs: assert that key paths use iovecs, and nothing else jhubbard.send.patches
2022-02-27 21:58 ` Jens Axboe
2022-02-27 22:12 ` John Hubbard
2022-02-27 22:15 ` Al Viro
2022-02-27 22:27 ` John Hubbard
2022-02-28 3:29 ` John Hubbard
2022-02-27 9:34 ` [PATCH 4/6] block, bio, fs: convert most filesystems to pin_user_pages_fast() jhubbard.send.patches
2022-02-27 21:59 ` Jens Axboe
2022-02-27 22:13 ` John Hubbard
2022-02-27 9:34 ` jhubbard.send.patches [this message]
2022-02-27 9:34 ` [PATCH 6/6] fuse: convert direct IO paths to use FOLL_PIN jhubbard.send.patches
2022-02-28 15:59 ` Miklos Szeredi
2022-02-28 21:16 ` John Hubbard
2022-03-01 9:41 ` Miklos Szeredi
2022-03-02 8:07 ` John Hubbard
2022-08-27 8:36 [PATCH 0/6] convert most filesystems to pin_user_pages_fast() John Hubbard
2022-08-27 8:36 ` [PATCH 5/6] NFS: direct-io: convert to FOLL_PIN pages John Hubbard
2022-08-27 22:48 ` Al Viro
2022-08-27 23:55 ` John Hubbard
2022-08-28 0:38 ` Al Viro
2022-08-28 0:39 ` Al Viro
2022-08-28 0:46 ` John Hubbard
2022-08-29 4:59 ` John Hubbard
2022-08-29 16:08 ` Jan Kara
2022-08-29 19:59 ` John Hubbard
2022-08-31 9:43 ` Jan Kara
2022-08-31 18:02 ` John Hubbard
2022-09-01 0:38 ` Al Viro
2022-09-01 9:06 ` Jan Kara
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