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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: xfs-VZNHf3L845pBDgjK7y7TUQ@public.gmane.org
Cc: linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-nvdimm-y27Ovi1pjclAfugRpC6u6w@public.gmane.org
Subject: [PATCH 3/8] xfs: remove s_maxbytes enforcement in xfs_file_read_iter
Date: Wed, 22 Jun 2016 17:27:11 +0200	[thread overview]
Message-ID: <1466609236-23801-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1466609236-23801-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>

All the three low-level read implementations that we might call already
take care of not overflowing the maximum supported bytes, no need to
duplicate it here.

Signed-off-by: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
---
 fs/xfs/xfs_file.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index b32e6b0..09a5a78 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -249,7 +249,6 @@ xfs_file_read_iter(
 	struct xfs_mount	*mp = ip->i_mount;
 	size_t			size = iov_iter_count(to);
 	ssize_t			ret = 0;
-	xfs_fsize_t		n;
 	loff_t			pos = iocb->ki_pos;
 
 	XFS_STATS_INC(mp, xs_read_calls);
@@ -266,13 +265,6 @@ xfs_file_read_iter(
 		}
 	}
 
-	n = mp->m_super->s_maxbytes - pos;
-	if (n <= 0 || size == 0)
-		return 0;
-
-	if (n < size)
-		size = n;
-
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
-- 
2.1.4

WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: xfs@oss.sgi.com
Cc: linux-nvdimm@ml01.01.org, linux-fsdevel@vger.kernel.org
Subject: [PATCH 3/8] xfs: remove s_maxbytes enforcement in xfs_file_read_iter
Date: Wed, 22 Jun 2016 17:27:11 +0200	[thread overview]
Message-ID: <1466609236-23801-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1466609236-23801-1-git-send-email-hch@lst.de>

All the three low-level read implementations that we might call already
take care of not overflowing the maximum supported bytes, no need to
duplicate it here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_file.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index b32e6b0..09a5a78 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -249,7 +249,6 @@ xfs_file_read_iter(
 	struct xfs_mount	*mp = ip->i_mount;
 	size_t			size = iov_iter_count(to);
 	ssize_t			ret = 0;
-	xfs_fsize_t		n;
 	loff_t			pos = iocb->ki_pos;
 
 	XFS_STATS_INC(mp, xs_read_calls);
@@ -266,13 +265,6 @@ xfs_file_read_iter(
 		}
 	}
 
-	n = mp->m_super->s_maxbytes - pos;
-	if (n <= 0 || size == 0)
-		return 0;
-
-	if (n < size)
-		size = n;
-
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
-- 
2.1.4


WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: xfs@oss.sgi.com
Cc: linux-fsdevel@vger.kernel.org, linux-nvdimm@ml01.01.org
Subject: [PATCH 3/8] xfs: remove s_maxbytes enforcement in xfs_file_read_iter
Date: Wed, 22 Jun 2016 17:27:11 +0200	[thread overview]
Message-ID: <1466609236-23801-4-git-send-email-hch@lst.de> (raw)
In-Reply-To: <1466609236-23801-1-git-send-email-hch@lst.de>

All the three low-level read implementations that we might call already
take care of not overflowing the maximum supported bytes, no need to
duplicate it here.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_file.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index b32e6b0..09a5a78 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -249,7 +249,6 @@ xfs_file_read_iter(
 	struct xfs_mount	*mp = ip->i_mount;
 	size_t			size = iov_iter_count(to);
 	ssize_t			ret = 0;
-	xfs_fsize_t		n;
 	loff_t			pos = iocb->ki_pos;
 
 	XFS_STATS_INC(mp, xs_read_calls);
@@ -266,13 +265,6 @@ xfs_file_read_iter(
 		}
 	}
 
-	n = mp->m_super->s_maxbytes - pos;
-	if (n <= 0 || size == 0)
-		return 0;
-
-	if (n < size)
-		size = n;
-
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
-- 
2.1.4

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

  parent reply	other threads:[~2016-06-22 15:27 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-22 15:27 xfs: untangle the direct I/O and DAX path, fix DAX locking Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
2016-06-22 15:27 ` Christoph Hellwig
     [not found] ` <1466609236-23801-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-06-22 15:27   ` [PATCH 1/8] xfs: don't pass ioflags around in the ioctl path Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` [PATCH 2/8] xfs: kill ioflags Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` Christoph Hellwig [this message]
2016-06-22 15:27     ` [PATCH 3/8] xfs: remove s_maxbytes enforcement in xfs_file_read_iter Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` [PATCH 4/8] xfs: split xfs_file_read_iter into buffered and direct I/O helpers Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` [PATCH 5/8] xfs: stop using generic_file_read_iter for direct I/O Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` [PATCH 6/8] xfs: direct calls in the direct I/O path Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27   ` [PATCH 7/8] xfs: split direct I/O and DAX path Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
     [not found]     ` <1466609236-23801-8-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-09-29  2:53       ` Darrick J. Wong
2016-09-29  2:53         ` Darrick J. Wong
2016-09-29  2:53         ` Darrick J. Wong
2016-09-29  8:38         ` aio completions vs file_accessed race, was: " Christoph Hellwig
2016-09-29  8:38           ` Christoph Hellwig
2016-09-29 20:18           ` Christoph Hellwig
2016-09-29 20:18             ` Christoph Hellwig
2016-09-29 20:18             ` Christoph Hellwig
2016-09-29 20:18               ` Christoph Hellwig
2016-09-29 20:33               ` Darrick J. Wong
2016-09-29 20:33                 ` Darrick J. Wong
2016-06-22 15:27   ` [PATCH 8/8] xfs: fix locking for DAX writes Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-22 15:27     ` Christoph Hellwig
2016-06-23 14:22     ` Boaz Harrosh
2016-06-23 14:22       ` Boaz Harrosh
2016-06-23 23:24   ` xfs: untangle the direct I/O and DAX path, fix DAX locking Dave Chinner
2016-06-23 23:24     ` Dave Chinner
2016-06-23 23:24     ` Dave Chinner
2016-06-24  1:14     ` Dan Williams
2016-06-24  1:14       ` Dan Williams
2016-06-24  7:13       ` Dave Chinner
2016-06-24  7:13         ` Dave Chinner
2016-06-24  7:31         ` Christoph Hellwig
2016-06-24  7:31           ` Christoph Hellwig
2016-06-24  7:26     ` Christoph Hellwig
2016-06-24  7:26       ` Christoph Hellwig
2016-06-24  7:26       ` Christoph Hellwig
2016-06-24 23:00       ` Dave Chinner
2016-06-24 23:00         ` Dave Chinner
2016-06-28 13:10         ` Christoph Hellwig
2016-06-28 13:10           ` Christoph Hellwig
2016-06-28 13:10           ` Christoph Hellwig
     [not found]           ` <20160628131059.GA30475-jcswGhMUV9g@public.gmane.org>
2016-06-28 13:27             ` Boaz Harrosh
2016-06-28 13:27               ` Boaz Harrosh
2016-06-28 13:27               ` Boaz Harrosh
     [not found]               ` <57727B27.7060104-/8YdC2HfS5554TAoqtyWWQ@public.gmane.org>
2016-06-28 13:39                 ` Christoph Hellwig
2016-06-28 13:39                   ` Christoph Hellwig
2016-06-28 13:39                   ` Christoph Hellwig
     [not found]                   ` <20160628133928.GB31283-jcswGhMUV9g@public.gmane.org>
2016-06-28 13:56                     ` Boaz Harrosh
2016-06-28 13:56                       ` Boaz Harrosh
2016-06-28 13:56                       ` Boaz Harrosh
     [not found]                       ` <5772820E.2080403-/8YdC2HfS5554TAoqtyWWQ@public.gmane.org>
2016-06-28 15:39                         ` Christoph Hellwig
2016-06-28 15:39                           ` Christoph Hellwig
2016-06-28 15:39                           ` Christoph Hellwig
     [not found]                           ` <20160628153925.GA2643-jcswGhMUV9g@public.gmane.org>
2016-06-29 12:23                             ` Boaz Harrosh
2016-06-29 12:23                               ` Boaz Harrosh
2016-06-29 12:23                               ` Boaz Harrosh

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