From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH 3/7] btrfs: use i_size_read() instead of open code
Date: Mon, 6 Nov 2017 16:36:14 +0800 [thread overview]
Message-ID: <20171106083618.7617-4-anand.jain@oracle.com> (raw)
In-Reply-To: <20171106083618.7617-1-anand.jain@oracle.com>
As i_size_read() takes care of 32bit smp or preempt cases as well.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
fs/btrfs/ioctl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index b0465020972a..86e7f5abd740 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1532,7 +1532,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
}
if (!new_size)
- new_size = device->bdev->bd_inode->i_size;
+ new_size = i_size_read(device->bdev->bd_inode);
old_size = btrfs_device_get_total_bytes(device);
@@ -1554,7 +1554,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
ret = -EINVAL;
goto out_mutex;
}
- if (new_size > device->bdev->bd_inode->i_size) {
+ if (new_size > i_size_read(device->bdev->bd_inode)) {
ret = -EFBIG;
goto out_mutex;
}
--
2.13.1
next prev parent reply other threads:[~2017-11-06 8:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 8:36 [PATCH 0/8] Misc device cleanup patches: part1 Anand Jain
2017-11-06 8:36 ` [PATCH 1/7] btrfs: optimize use of volume_mutex in btrfs_ioctl_resize() Anand Jain
2017-11-06 16:50 ` David Sterba
2017-11-06 8:36 ` [PATCH 2/7] btrfs: move user provided string checks outside of volume_mutex Anand Jain
2017-11-06 8:36 ` Anand Jain [this message]
2017-11-06 16:52 ` [PATCH 3/7] btrfs: use i_size_read() instead of open code David Sterba
2017-11-06 23:44 ` Anand Jain
2017-11-15 16:45 ` David Sterba
2017-11-06 8:36 ` [PATCH 4/7] btrfs: rename btrfs_add_device to btrfs_add_dev_item Anand Jain
2017-11-06 16:53 ` David Sterba
2017-11-06 8:36 ` [PATCH 5/7] btrfs: btrfs_rm_device() does not need uuid_mutex Anand Jain
2017-11-06 17:02 ` David Sterba
2017-11-06 23:59 ` Anand Jain
2017-11-06 8:36 ` [PATCH 6/7] btrfs: move volume_mutex into btrfs_init_new_device() Anand Jain
2017-11-06 8:36 ` [PATCH 7/7] btrfs: rename btrfs_init_new_device() to btrfs_add_device() Anand Jain
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