From: ira.weiny@intel.com
To: linux-kernel@vger.kernel.org
Cc: Ira Weiny <ira.weiny@intel.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
"Darrick J. Wong" <darrick.wong@oracle.com>,
Dan Williams <dan.j.williams@intel.com>,
Dave Chinner <david@fromorbit.com>,
Christoph Hellwig <hch@lst.de>,
"Theodore Y. Ts'o" <tytso@mit.edu>, Jan Kara <jack@suse.cz>,
linux-ext4@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org
Subject: [PATCH v3 04/12] fs/xfs: Clean up DAX support check
Date: Sat, 8 Feb 2020 11:34:37 -0800 [thread overview]
Message-ID: <20200208193445.27421-5-ira.weiny@intel.com> (raw)
In-Reply-To: <20200208193445.27421-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
Rather than open coding xfs_inode_supports_dax() in
xfs_ioctl_setattr_dax_invalidate() export xfs_inode_supports_dax() and
call it in preparation for swapping dax flags.
This also means updating xfs_inode_supports_dax() to return true for a
directory.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
fs/xfs/xfs_ioctl.c | 16 +++-------------
fs/xfs/xfs_iops.c | 8 ++++++--
fs/xfs/xfs_iops.h | 2 ++
3 files changed, 11 insertions(+), 15 deletions(-)
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 1a57be696810..da1eb2bdb386 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1190,23 +1190,13 @@ xfs_ioctl_setattr_dax_invalidate(
int *join_flags)
{
struct inode *inode = VFS_I(ip);
- struct super_block *sb = inode->i_sb;
int error;
*join_flags = 0;
- /*
- * It is only valid to set the DAX flag on regular files and
- * directories on filesystems where the block size is equal to the page
- * size. On directories it serves as an inherited hint so we don't
- * have to check the device for dax support or flush pagecache.
- */
- if (fa->fsx_xflags & FS_XFLAG_DAX) {
- struct xfs_buftarg *target = xfs_inode_buftarg(ip);
-
- if (!bdev_dax_supported(target->bt_bdev, sb->s_blocksize))
- return -EINVAL;
- }
+ if ((fa->fsx_xflags & FS_XFLAG_DAX) == FS_XFLAG_DAX &&
+ !xfs_inode_supports_dax(ip))
+ return -EINVAL;
/* If the DAX state is not changing, we have nothing to do here. */
if ((fa->fsx_xflags & FS_XFLAG_DAX) &&
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index a7db50d923d4..eebec159d873 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1246,14 +1246,18 @@ xfs_inode_mount_is_dax(
}
/* Figure out if this file actually supports DAX. */
-static bool
+bool
xfs_inode_supports_dax(
struct xfs_inode *ip)
{
struct xfs_mount *mp = ip->i_mount;
/* Only supported on non-reflinked files. */
- if (!S_ISREG(VFS_I(ip)->i_mode) || xfs_is_reflink_inode(ip))
+ if (xfs_is_reflink_inode(ip))
+ return false;
+
+ /* Only supported on regular files and directories. */
+ if (!(S_ISREG(VFS_I(ip)->i_mode) || S_ISDIR(VFS_I(ip)->i_mode)))
return false;
/* Block size must match page size */
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index 4d24ff309f59..f24fec8de1d6 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -24,4 +24,6 @@ extern int xfs_setattr_nonsize(struct xfs_inode *ip, struct iattr *vap,
extern int xfs_vn_setattr_nonsize(struct dentry *dentry, struct iattr *vap);
extern int xfs_vn_setattr_size(struct dentry *dentry, struct iattr *vap);
+extern bool xfs_inode_supports_dax(struct xfs_inode *ip);
+
#endif /* __XFS_IOPS_H__ */
--
2.21.0
next prev parent reply other threads:[~2020-02-08 19:34 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-08 19:34 [PATCH v3 00/12] Enable per-file/directory DAX operations V3 ira.weiny
2020-02-08 19:34 ` [PATCH v3 01/12] fs/stat: Define DAX statx attribute ira.weiny
2020-02-08 19:34 ` [PATCH v3 02/12] fs/xfs: Isolate the physical DAX flag from effective ira.weiny
2020-02-08 19:34 ` [PATCH v3 03/12] fs/xfs: Separate functionality of xfs_inode_supports_dax() ira.weiny
2020-02-11 5:47 ` Dave Chinner
2020-02-11 16:13 ` Ira Weiny
2020-02-08 19:34 ` ira.weiny [this message]
2020-02-11 5:57 ` [PATCH v3 04/12] fs/xfs: Clean up DAX support check Dave Chinner
2020-02-11 16:28 ` Ira Weiny
2020-02-11 20:38 ` Dave Chinner
2020-02-08 19:34 ` [PATCH v3 05/12] fs: remove unneeded IS_DAX() check ira.weiny
2020-02-11 5:34 ` Dave Chinner
2020-02-11 16:38 ` Ira Weiny
2020-02-11 20:41 ` Dave Chinner
2020-02-12 16:04 ` Ira Weiny
2020-02-08 19:34 ` [PATCH v3 06/12] fs/xfs: Check if the inode supports DAX under lock ira.weiny
2020-02-11 6:16 ` Dave Chinner
2020-02-11 17:55 ` Ira Weiny
2020-02-11 20:42 ` Dave Chinner
2020-02-12 16:10 ` Ira Weiny
2020-02-08 19:34 ` [PATCH v3 07/12] fs: Add locking for a dynamic DAX state ira.weiny
2020-02-11 8:00 ` Dave Chinner
2020-02-11 20:14 ` Ira Weiny
2020-02-11 20:59 ` Dan Williams
2020-02-11 21:49 ` Dave Chinner
2020-02-12 6:31 ` Darrick J. Wong
2020-02-08 19:34 ` [PATCH v3 08/12] fs/xfs: Clarify lockdep dependency for xfs_isilocked() ira.weiny
2020-02-08 19:34 ` [PATCH v3 09/12] fs/xfs: Add write DAX lock to xfs layer ira.weiny
2020-02-08 19:34 ` [PATCH v3 10/12] fs: Prevent DAX state change if file is mmap'ed ira.weiny
2020-02-08 19:34 ` [PATCH v3 11/12] fs/xfs: Clean up locking in dax invalidate ira.weiny
2020-02-08 19:34 ` [PATCH v3 12/12] fs/xfs: Allow toggle of effective DAX flag ira.weiny
2020-02-10 15:15 ` [PATCH v3 00/12] Enable per-file/directory DAX operations V3 Jeff Moyer
2020-02-11 20:17 ` Ira Weiny
2020-02-12 19:49 ` Jeff Moyer
2020-02-13 19:01 ` Ira Weiny
2020-02-13 19:05 ` Ira Weiny
2020-02-13 19:58 ` Darrick J. Wong
2020-02-13 23:29 ` Ira Weiny
2020-02-14 0:16 ` Dan Williams
2020-02-14 20:06 ` Ira Weiny
2020-02-14 21:23 ` Jeff Moyer
2020-02-14 21:58 ` Ira Weiny
2020-02-14 22:06 ` Jeff Moyer
2020-02-14 22:58 ` Jeff Moyer
2020-02-14 23:03 ` Jeff Moyer
2020-02-18 2:35 ` Ira Weiny
2020-02-18 14:22 ` Jeff Moyer
2020-02-18 23:54 ` Ira Weiny
2020-02-20 16:20 ` Ira Weiny
2020-02-20 16:30 ` Darrick J. Wong
2020-02-20 16:49 ` Ira Weiny
2020-02-20 17:00 ` Darrick J. Wong
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