On 02/08/2019 3:20 am, john.hubbard@xxxxxxxxx wrote:
From: John Hubbard <jhubbard@xxxxxxxxxx> For pages that were retained via get_user_pages*(), release those pages via the new put_user_page*() routines, instead of via put_page() or release_pages(). This is part a tree-wide conversion, as described in commit fc1d8e7cca2d ("mm: introduce put_user_page*(), placeholder versions"). Cc: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx> Cc: Anna Schumaker <anna.schumaker@xxxxxxxxxx> Cc: linux-nfs@xxxxxxxxxxxxxxx Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx> --- fs/nfs/direct.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 0cb442406168..b00b89dda3c5 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -278,9 +278,7 @@ ssize_t nfs_direct_IO(struct kiocb *iocb, struct iov_iter *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]); + put_user_pages(pages, npages); }
Since it's static, and only called twice, might it be better to change its two callers [nfs_direct_{read,write}_schedule_iovec()] to call put_user_pages() directly, and remove nfs_direct_release_pages() entirely?
thanks, calum.
void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo,
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