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From: Andreas Gruenbacher <agruenba@redhat.com>
To: cluster-devel@redhat.com, "Darrick J . Wong" <darrick.wong@oracle.com>
Cc: "Christoph Hellwig" <hch@lst.de>,
	"Bob Peterson" <rpeterso@redhat.com>, "Jan Kara" <jack@suse.cz>,
	"Dave Chinner" <david@fromorbit.com>,
	"Ross Lagerwall" <ross.lagerwall@citrix.com>,
	"Mark Syms" <Mark.Syms@citrix.com>,
	"Edwin Török" <edvin.torok@citrix.com>,
	linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
	"Andreas Gruenbacher" <agruenba@redhat.com>
Subject: [PATCH v7 2/5] fs: Turn __generic_write_end into a void function
Date: Tue, 30 Apr 2019 00:09:31 +0200	[thread overview]
Message-ID: <20190429220934.10415-3-agruenba@redhat.com> (raw)
In-Reply-To: <20190429220934.10415-1-agruenba@redhat.com>

The VFS-internal __generic_write_end helper always returns the value of
its @copied argument.  This can be confusing, and it isn't very useful
anyway, so turn __generic_write_end into a function returning void
instead.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 fs/buffer.c   | 6 +++---
 fs/internal.h | 2 +-
 fs/iomap.c    | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/buffer.c b/fs/buffer.c
index ce357602f471..e0d4c6a5e2d2 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2085,7 +2085,7 @@ int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
 }
 EXPORT_SYMBOL(block_write_begin);
 
-int __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
+void __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
 		struct page *page)
 {
 	loff_t old_size = inode->i_size;
@@ -2116,7 +2116,6 @@ int __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
 	 */
 	if (i_size_changed)
 		mark_inode_dirty(inode);
-	return copied;
 }
 
 int block_write_end(struct file *file, struct address_space *mapping,
@@ -2160,7 +2159,8 @@ int generic_write_end(struct file *file, struct address_space *mapping,
 			struct page *page, void *fsdata)
 {
 	copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
-	return __generic_write_end(mapping->host, pos, copied, page);
+	__generic_write_end(mapping->host, pos, copied, page);
+	return copied;
 }
 EXPORT_SYMBOL(generic_write_end);
 
diff --git a/fs/internal.h b/fs/internal.h
index 6a8b71643af4..530587fdf5d8 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -44,7 +44,7 @@ static inline int __sync_blockdev(struct block_device *bdev, int wait)
 extern void guard_bio_eod(int rw, struct bio *bio);
 extern int __block_write_begin_int(struct page *page, loff_t pos, unsigned len,
 		get_block_t *get_block, struct iomap *iomap);
-int __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
+void __generic_write_end(struct inode *inode, loff_t pos, unsigned copied,
 		struct page *page);
 
 /*
diff --git a/fs/iomap.c b/fs/iomap.c
index 2344c662e6fc..f8c9722d1a97 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -777,7 +777,7 @@ iomap_write_end(struct inode *inode, loff_t pos, unsigned len,
 		ret = __iomap_write_end(inode, pos, len, copied, page, iomap);
 	}
 
-	ret = __generic_write_end(inode, pos, ret, page);
+	__generic_write_end(inode, pos, ret, page);
 	if (iomap->page_done)
 		iomap->page_done(inode, pos, copied, page, iomap);
 
-- 
2.20.1


  parent reply	other threads:[~2019-04-29 22:09 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-29 22:09 [PATCH v7 0/5] iomap and gfs2 fixes Andreas Gruenbacher
2019-04-29 22:09 ` [PATCH v7 1/5] iomap: Clean up __generic_write_end calling Andreas Gruenbacher
2019-04-30 15:14   ` Darrick J. Wong
2019-04-29 22:09 ` Andreas Gruenbacher [this message]
2019-04-30 10:29   ` [PATCH v7 2/5] fs: Turn __generic_write_end into a void function Christoph Hellwig
2019-04-30 15:17   ` Darrick J. Wong
2019-04-29 22:09 ` [PATCH v7 3/5] iomap: Fix use-after-free error in page_done callback Andreas Gruenbacher
2019-04-30 15:23   ` Darrick J. Wong
2019-04-29 22:09 ` [PATCH v7 4/5] iomap: Add a page_prepare callback Andreas Gruenbacher
2019-04-30 15:26   ` Darrick J. Wong
2019-04-29 22:09 ` [PATCH v7 5/5] gfs2: Fix iomap write page reclaim deadlock Andreas Gruenbacher
2019-04-30 15:32   ` Darrick J. Wong
2019-04-30 15:39     ` Andreas Gruenbacher
2019-04-30 15:47       ` Darrick J. Wong
2019-04-30 16:15         ` Andreas Grünbacher
2019-04-30  2:50 ` [PATCH v7 0/5] iomap and gfs2 fixes Darrick J. Wong
2019-04-30 21:21   ` Dave Chinner
2019-05-01 15:06     ` Darrick J. Wong

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