xfs: drop dmapi hooks

Dmapi support was never merged upstream, but we still have a lot of hooks
bloating XFS for it, all over the fast pathes of the filesystem.

This patch drops over 700 lines of dmapi overhead.  If we'll ever get HSM
support in mainline at least the namespace events can be done much saner
in the VFS instead of the individual filesystem, so it's not like this
is much help for future work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

1 files changed, 0 insertions, 170 deletions

diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
deleted file mode 100644
index 2813cdd72375..000000000000
--- a/fs/xfs/xfs_dmapi.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * Copyright (c) 2000-2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_DMAPI_H__
-#define __XFS_DMAPI_H__
-
-/*	Values used to define the on-disk version of dm_attrname_t. All
- *	on-disk attribute names start with the 8-byte string "SGI_DMI_".
- *
- *      In the on-disk inode, DMAPI attribute names consist of the user-provided
- *      name with the DMATTR_PREFIXSTRING pre-pended.  This string must NEVER be
- *      changed.
- */
-
-#define DMATTR_PREFIXLEN	8
-#define DMATTR_PREFIXSTRING	"SGI_DMI_"
-
-typedef enum {
-	DM_EVENT_INVALID	= -1,
-	DM_EVENT_CANCEL		= 0,		/* not supported */
-	DM_EVENT_MOUNT		= 1,
-	DM_EVENT_PREUNMOUNT	= 2,
-	DM_EVENT_UNMOUNT	= 3,
-	DM_EVENT_DEBUT		= 4,		/* not supported */
-	DM_EVENT_CREATE		= 5,
-	DM_EVENT_CLOSE		= 6,		/* not supported */
-	DM_EVENT_POSTCREATE	= 7,
-	DM_EVENT_REMOVE		= 8,
-	DM_EVENT_POSTREMOVE	= 9,
-	DM_EVENT_RENAME		= 10,
-	DM_EVENT_POSTRENAME	= 11,
-	DM_EVENT_LINK		= 12,
-	DM_EVENT_POSTLINK	= 13,
-	DM_EVENT_SYMLINK	= 14,
-	DM_EVENT_POSTSYMLINK	= 15,
-	DM_EVENT_READ		= 16,
-	DM_EVENT_WRITE		= 17,
-	DM_EVENT_TRUNCATE	= 18,
-	DM_EVENT_ATTRIBUTE	= 19,
-	DM_EVENT_DESTROY	= 20,
-	DM_EVENT_NOSPACE	= 21,
-	DM_EVENT_USER		= 22,
-	DM_EVENT_MAX		= 23
-} dm_eventtype_t;
-#define HAVE_DM_EVENTTYPE_T
-
-typedef enum {
-	DM_RIGHT_NULL,
-	DM_RIGHT_SHARED,
-	DM_RIGHT_EXCL
-} dm_right_t;
-#define HAVE_DM_RIGHT_T
-
-/* Defines for determining if an event message should be sent. */
-#ifdef HAVE_DMAPI
-#define	DM_EVENT_ENABLED(ip, event) ( \
-	unlikely ((ip)->i_mount->m_flags & XFS_MOUNT_DMAPI) && \
-		( ((ip)->i_d.di_dmevmask & (1 << event)) || \
-		  ((ip)->i_mount->m_dmevmask & (1 << event)) ) \
-	)
-#else
-#define DM_EVENT_ENABLED(ip, event)	(0)
-#endif
-
-#define DM_XFS_VALID_FS_EVENTS		( \
-	(1 << DM_EVENT_PREUNMOUNT)	| \
-	(1 << DM_EVENT_UNMOUNT)		| \
-	(1 << DM_EVENT_NOSPACE)		| \
-	(1 << DM_EVENT_DEBUT)		| \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
-   a regular file or a symlink.  These events are persistent.
-*/
-
-#define	DM_XFS_VALID_FILE_EVENTS	( \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events valid in dm_set_eventlist() when called with a file handle for
-   a directory.  These events are persistent.
-*/
-
-#define	DM_XFS_VALID_DIRECTORY_EVENTS	( \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-/* Events supported by the XFS filesystem. */
-#define	DM_XFS_SUPPORTED_EVENTS		( \
-	(1 << DM_EVENT_MOUNT)		| \
-	(1 << DM_EVENT_PREUNMOUNT)	| \
-	(1 << DM_EVENT_UNMOUNT)		| \
-	(1 << DM_EVENT_NOSPACE)		| \
-	(1 << DM_EVENT_CREATE)		| \
-	(1 << DM_EVENT_POSTCREATE)	| \
-	(1 << DM_EVENT_REMOVE)		| \
-	(1 << DM_EVENT_POSTREMOVE)	| \
-	(1 << DM_EVENT_RENAME)		| \
-	(1 << DM_EVENT_POSTRENAME)	| \
-	(1 << DM_EVENT_LINK)		| \
-	(1 << DM_EVENT_POSTLINK)	| \
-	(1 << DM_EVENT_SYMLINK)		| \
-	(1 << DM_EVENT_POSTSYMLINK)	| \
-	(1 << DM_EVENT_READ)		| \
-	(1 << DM_EVENT_WRITE)		| \
-	(1 << DM_EVENT_TRUNCATE)	| \
-	(1 << DM_EVENT_ATTRIBUTE)	| \
-	(1 << DM_EVENT_DESTROY)		)
-
-
-/*
- *	Definitions used for the flags field on dm_send_*_event().
- */
-
-#define DM_FLAGS_NDELAY		0x001	/* return EAGAIN after dm_pending() */
-#define DM_FLAGS_UNWANTED	0x002	/* event not in fsys dm_eventset_t */
-#define DM_FLAGS_IMUX		0x004	/* thread holds i_mutex */
-#define DM_FLAGS_IALLOCSEM_RD	0x010	/* thread holds i_alloc_sem rd */
-#define DM_FLAGS_IALLOCSEM_WR	0x020	/* thread holds i_alloc_sem wr */
-
-/*
- *	Pull in platform specific event flags defines
- */
-#include "xfs_dmapi_priv.h"
-
-/*
- *	Macros to turn caller specified delay/block flags into
- *	dm_send_xxxx_event flag DM_FLAGS_NDELAY.
- */
-
-#define FILP_DELAY_FLAG(filp) ((filp->f_flags&(O_NDELAY|O_NONBLOCK)) ? \
-			DM_FLAGS_NDELAY : 0)
-#define AT_DELAY_FLAG(f) ((f & XFS_ATTR_NONBLOCK) ? DM_FLAGS_NDELAY : 0)
-
-#endif  /* __XFS_DMAPI_H__ */