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From: Stefan Roesch <[email protected]>
To: <[email protected]>, <[email protected]>,
	<[email protected]>, <[email protected]>,
	<[email protected]>
Cc: <[email protected]>, <[email protected]>, <[email protected]>,
	<[email protected]>, <[email protected]>,
	Christoph Hellwig <[email protected]>,
	"Darrick J . Wong" <[email protected]>
Subject: [PATCH v8 04/14] iomap: Add flags parameter to iomap_page_create()
Date: Wed, 8 Jun 2022 10:17:31 -0700	[thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>

Add the kiocb flags parameter to the function iomap_page_create().
Depending on the value of the flags parameter it enables different gfp
flags.

No intended functional changes in this patch.

Signed-off-by: Stefan Roesch <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Darrick J. Wong <[email protected]>
---
 fs/iomap/buffered-io.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index d2a9f699e17e..705f80cd2d4e 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -44,16 +44,23 @@ static inline struct iomap_page *to_iomap_page(struct folio *folio)
 static struct bio_set iomap_ioend_bioset;
 
 static struct iomap_page *
-iomap_page_create(struct inode *inode, struct folio *folio)
+iomap_page_create(struct inode *inode, struct folio *folio, unsigned int flags)
 {
 	struct iomap_page *iop = to_iomap_page(folio);
 	unsigned int nr_blocks = i_blocks_per_folio(inode, folio);
+	gfp_t gfp;
 
 	if (iop || nr_blocks <= 1)
 		return iop;
 
+	if (flags & IOMAP_NOWAIT)
+		gfp = GFP_NOWAIT;
+	else
+		gfp = GFP_NOFS | __GFP_NOFAIL;
+
 	iop = kzalloc(struct_size(iop, uptodate, BITS_TO_LONGS(nr_blocks)),
-			GFP_NOFS | __GFP_NOFAIL);
+		      gfp);
+
 	spin_lock_init(&iop->uptodate_lock);
 	if (folio_test_uptodate(folio))
 		bitmap_fill(iop->uptodate, nr_blocks);
@@ -226,7 +233,7 @@ static int iomap_read_inline_data(const struct iomap_iter *iter,
 	if (WARN_ON_ONCE(size > iomap->length))
 		return -EIO;
 	if (offset > 0)
-		iop = iomap_page_create(iter->inode, folio);
+		iop = iomap_page_create(iter->inode, folio, iter->flags);
 	else
 		iop = to_iomap_page(folio);
 
@@ -264,7 +271,7 @@ static loff_t iomap_readpage_iter(const struct iomap_iter *iter,
 		return iomap_read_inline_data(iter, folio);
 
 	/* zero post-eof blocks as the page may be mapped */
-	iop = iomap_page_create(iter->inode, folio);
+	iop = iomap_page_create(iter->inode, folio, iter->flags);
 	iomap_adjust_read_range(iter->inode, folio, &pos, length, &poff, &plen);
 	if (plen == 0)
 		goto done;
@@ -547,7 +554,7 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos,
 		size_t len, struct folio *folio)
 {
 	const struct iomap *srcmap = iomap_iter_srcmap(iter);
-	struct iomap_page *iop = iomap_page_create(iter->inode, folio);
+	struct iomap_page *iop;
 	loff_t block_size = i_blocksize(iter->inode);
 	loff_t block_start = round_down(pos, block_size);
 	loff_t block_end = round_up(pos + len, block_size);
@@ -558,6 +565,8 @@ static int __iomap_write_begin(const struct iomap_iter *iter, loff_t pos,
 		return 0;
 	folio_clear_error(folio);
 
+	iop = iomap_page_create(iter->inode, folio, iter->flags);
+
 	do {
 		iomap_adjust_read_range(iter->inode, folio, &block_start,
 				block_end - block_start, &poff, &plen);
@@ -1329,7 +1338,7 @@ iomap_writepage_map(struct iomap_writepage_ctx *wpc,
 		struct writeback_control *wbc, struct inode *inode,
 		struct folio *folio, u64 end_pos)
 {
-	struct iomap_page *iop = iomap_page_create(inode, folio);
+	struct iomap_page *iop = iomap_page_create(inode, folio, 0);
 	struct iomap_ioend *ioend, *next;
 	unsigned len = i_blocksize(inode);
 	unsigned nblocks = i_blocks_per_folio(inode, folio);
-- 
2.30.2



  parent reply	other threads:[~2022-06-08 17:27 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-08 17:17 [PATCH v8 00/14] io-uring/xfs: support async buffered writes Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 01/14] mm: Move starting of background writeback into the main balancing loop Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 02/14] mm: Move updates of dirty_exceeded into one place Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 03/14] mm: Add balance_dirty_pages_ratelimited_flags() function Stefan Roesch
2022-06-08 18:44   ` Matthew Wilcox
2022-06-08 17:17 ` Stefan Roesch [this message]
2022-06-08 18:51   ` [PATCH v8 04/14] iomap: Add flags parameter to iomap_page_create() Matthew Wilcox
2022-06-08 17:17 ` [PATCH v8 05/14] iomap: Add async buffered write support Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 06/14] iomap: Return -EAGAIN from iomap_write_iter() Stefan Roesch
2022-06-08 19:02   ` Matthew Wilcox
2022-06-09 18:49     ` Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 07/14] fs: Add check for async buffered writes to generic_write_checks Stefan Roesch
2022-06-10 11:50   ` Christian Brauner
2022-06-08 17:17 ` [PATCH v8 08/14] fs: add __remove_file_privs() with flags parameter Stefan Roesch
2022-06-10 11:53   ` Christian Brauner
2022-06-08 17:17 ` [PATCH v8 09/14] fs: Split off inode_needs_update_time and __file_update_time Stefan Roesch
2022-06-10 11:55   ` Christian Brauner
2022-06-08 17:17 ` [PATCH v8 10/14] fs: Add async write file modification handling Stefan Roesch
2022-06-10 12:38   ` Christian Brauner
2022-06-08 17:17 ` [PATCH v8 11/14] io_uring: Add support for async buffered writes Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 12/14] io_uring: Add tracepoint for short writes Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 13/14] xfs: Specify lockmode when calling xfs_ilock_for_iomap() Stefan Roesch
2022-06-08 17:17 ` [PATCH v8 14/14] xfs: Add async buffered write support Stefan Roesch

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