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From: "Matthew Wilcox (Oracle)" <willy@infradead.org> To: linux-fsdevel@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>, linux-mm@kvack.org, v9fs-developer@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-afs@lists.infradead.org, ceph-devel@vger.kernel.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-mtd@lists.infradead.org, Richard Weinberger <richard@nod.at> Subject: [PATCH 10/13] jffs2: Tell the VFS that readpage was synchronous Date: Thu, 17 Sep 2020 16:10:47 +0100 [thread overview] Message-ID: <20200917151050.5363-11-willy@infradead.org> (raw) In-Reply-To: <20200917151050.5363-1-willy@infradead.org> The jffs2 readpage implementation was already synchronous, so use AOP_UPDATED_PAGE to avoid cycling the page lock. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- fs/jffs2/file.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c index f8fb89b10227..959a74027041 100644 --- a/fs/jffs2/file.c +++ b/fs/jffs2/file.c @@ -116,15 +116,17 @@ int jffs2_do_readpage_unlock(void *data, struct page *pg) return ret; } - static int jffs2_readpage (struct file *filp, struct page *pg) { struct jffs2_inode_info *f = JFFS2_INODE_INFO(pg->mapping->host); int ret; mutex_lock(&f->sem); - ret = jffs2_do_readpage_unlock(pg->mapping->host, pg); + ret = jffs2_do_readpage_nolock(pg->mapping->host, pg); mutex_unlock(&f->sem); + if (!ret) + return AOP_UPDATED_PAGE; + unlock_page(pg); return ret; } -- 2.28.0
next prev parent reply other threads:[~2020-09-17 15:15 UTC|newest] Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-17 15:10 [PATCH 00/13] Allow readpage to return a locked page Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 01/13] mm: Add AOP_UPDATED_PAGE return value Matthew Wilcox (Oracle) 2020-09-17 22:03 ` Matthew Wilcox 2020-09-17 15:10 ` [PATCH 02/13] 9p: Tell the VFS that readpage was synchronous Matthew Wilcox (Oracle) 2020-09-18 5:59 ` [V9fs-developer] " Dominique Martinet 2020-09-18 11:19 ` Matthew Wilcox 2020-09-18 12:30 ` Dominique Martinet 2020-09-17 15:10 ` [PATCH 03/13] afs: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 04/13] ceph: " Matthew Wilcox (Oracle) 2020-09-17 16:49 ` Jeff Layton 2020-09-17 15:10 ` [PATCH 05/13] cifs: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 06/13] cramfs: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 07/13] ecryptfs: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 08/13] fuse: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` [PATCH 09/13] hostfs: " Matthew Wilcox (Oracle) 2020-09-17 15:10 ` Matthew Wilcox (Oracle) [this message] 2020-09-17 15:10 ` [PATCH 11/13] ubifs: " Matthew Wilcox (Oracle) 2020-09-17 20:46 ` Richard Weinberger 2020-09-17 15:10 ` [PATCH 12/13] udf: " Matthew Wilcox (Oracle) 2020-09-24 9:00 ` Jan Kara 2020-09-17 15:10 ` [PATCH 13/13] vboxsf: " Matthew Wilcox (Oracle) 2020-09-17 22:56 ` [PATCH 14/13] iomap: Inline iomap_iop_set_range_uptodate into its one caller Matthew Wilcox (Oracle) 2020-09-17 22:56 ` [PATCH 15/13] iomap: Inline iomap_read_finish " Matthew Wilcox (Oracle) 2020-09-19 6:31 ` Christoph Hellwig 2020-09-17 22:56 ` [PATCH 16/13] iomap: Make readpage synchronous Matthew Wilcox (Oracle) 2020-09-19 6:39 ` Christoph Hellwig 2020-09-19 6:43 ` Christoph Hellwig 2020-09-19 17:03 ` Matthew Wilcox 2020-09-19 17:10 ` Matthew Wilcox 2020-09-19 6:31 ` [PATCH 14/13] iomap: Inline iomap_iop_set_range_uptodate into its one caller Christoph Hellwig
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