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From: Christoph Hellwig <hch@lst.de>
To: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH] nfs: fix nfs_size_to_loff_t
Date: Mon,  8 Feb 2016 21:11:50 +0100	[thread overview]
Message-ID: <1454962310-7384-1-git-send-email-hch@lst.de> (raw)

See http://www.infradead.org/rpr.html

We support OFFSET_MAX just fine, so don't round down below it.  Also
switch to using min_t to make the helper more readable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/nfs_fs.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 48e0320..67300f8 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -550,9 +550,7 @@ extern int  nfs_readpage_async(struct nfs_open_context *, struct inode *,
 
 static inline loff_t nfs_size_to_loff_t(__u64 size)
 {
-	if (size > (__u64) OFFSET_MAX - 1)
-		return OFFSET_MAX - 1;
-	return (loff_t) size;
+	return min_t(u64, size, OFFSET_MAX);
 }
 
 static inline ino_t
-- 
2.1.4


                 reply	other threads:[~2016-02-08 20:11 UTC|newest]

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