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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vfs.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_vfs.c330
1 files changed, 330 insertions, 0 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vfs.c b/fs/xfs/linux-2.6/xfs_vfs.c
new file mode 100644
index 000000000000..669c61644959
--- /dev/null
+++ b/fs/xfs/linux-2.6/xfs_vfs.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 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.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_macros.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_clnt.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_imap.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_mount.h"
+#include "xfs_quota.h"
+
+int
+vfs_mount(
+ struct bhv_desc *bdp,
+ struct xfs_mount_args *args,
+ struct cred *cr)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_mount)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_mount)(next, args, cr));
+}
+
+int
+vfs_parseargs(
+ struct bhv_desc *bdp,
+ char *s,
+ struct xfs_mount_args *args,
+ int f)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_parseargs)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_parseargs)(next, s, args, f));
+}
+
+int
+vfs_showargs(
+ struct bhv_desc *bdp,
+ struct seq_file *m)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_showargs)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_showargs)(next, m));
+}
+
+int
+vfs_unmount(
+ struct bhv_desc *bdp,
+ int fl,
+ struct cred *cr)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_unmount)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_unmount)(next, fl, cr));
+}
+
+int
+vfs_mntupdate(
+ struct bhv_desc *bdp,
+ int *fl,
+ struct xfs_mount_args *args)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_mntupdate)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_mntupdate)(next, fl, args));
+}
+
+int
+vfs_root(
+ struct bhv_desc *bdp,
+ struct vnode **vpp)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_root)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_root)(next, vpp));
+}
+
+int
+vfs_statvfs(
+ struct bhv_desc *bdp,
+ xfs_statfs_t *sp,
+ struct vnode *vp)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_statvfs)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_statvfs)(next, sp, vp));
+}
+
+int
+vfs_sync(
+ struct bhv_desc *bdp,
+ int fl,
+ struct cred *cr)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_sync)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_sync)(next, fl, cr));
+}
+
+int
+vfs_vget(
+ struct bhv_desc *bdp,
+ struct vnode **vpp,
+ struct fid *fidp)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_vget)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_vget)(next, vpp, fidp));
+}
+
+int
+vfs_dmapiops(
+ struct bhv_desc *bdp,
+ caddr_t addr)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_dmapiops)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_dmapiops)(next, addr));
+}
+
+int
+vfs_quotactl(
+ struct bhv_desc *bdp,
+ int cmd,
+ int id,
+ caddr_t addr)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_quotactl)
+ next = BHV_NEXT(next);
+ return ((*bhvtovfsops(next)->vfs_quotactl)(next, cmd, id, addr));
+}
+
+void
+vfs_init_vnode(
+ struct bhv_desc *bdp,
+ struct vnode *vp,
+ struct bhv_desc *bp,
+ int unlock)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_init_vnode)
+ next = BHV_NEXT(next);
+ ((*bhvtovfsops(next)->vfs_init_vnode)(next, vp, bp, unlock));
+}
+
+void
+vfs_force_shutdown(
+ struct bhv_desc *bdp,
+ int fl,
+ char *file,
+ int line)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_force_shutdown)
+ next = BHV_NEXT(next);
+ ((*bhvtovfsops(next)->vfs_force_shutdown)(next, fl, file, line));
+}
+
+void
+vfs_freeze(
+ struct bhv_desc *bdp)
+{
+ struct bhv_desc *next = bdp;
+
+ ASSERT(next);
+ while (! (bhvtovfsops(next))->vfs_freeze)
+ next = BHV_NEXT(next);
+ ((*bhvtovfsops(next)->vfs_freeze)(next));
+}
+
+vfs_t *
+vfs_allocate( void )
+{
+ struct vfs *vfsp;
+
+ vfsp = kmem_zalloc(sizeof(vfs_t), KM_SLEEP);
+ bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
+ INIT_LIST_HEAD(&vfsp->vfs_sync_list);
+ spin_lock_init(&vfsp->vfs_sync_lock);
+ init_waitqueue_head(&vfsp->vfs_wait_sync_task);
+ init_waitqueue_head(&vfsp->vfs_wait_single_sync_task);
+ return vfsp;
+}
+
+void
+vfs_deallocate(
+ struct vfs *vfsp)
+{
+ bhv_head_destroy(VFS_BHVHEAD(vfsp));
+ kmem_free(vfsp, sizeof(vfs_t));
+}
+
+void
+vfs_insertops(
+ struct vfs *vfsp,
+ struct bhv_vfsops *vfsops)
+{
+ struct bhv_desc *bdp;
+
+ bdp = kmem_alloc(sizeof(struct bhv_desc), KM_SLEEP);
+ bhv_desc_init(bdp, NULL, vfsp, vfsops);
+ bhv_insert(&vfsp->vfs_bh, bdp);
+}
+
+void
+vfs_insertbhv(
+ struct vfs *vfsp,
+ struct bhv_desc *bdp,
+ struct vfsops *vfsops,
+ void *mount)
+{
+ bhv_desc_init(bdp, mount, vfsp, vfsops);
+ bhv_insert_initial(&vfsp->vfs_bh, bdp);
+}
+
+void
+bhv_remove_vfsops(
+ struct vfs *vfsp,
+ int pos)
+{
+ struct bhv_desc *bhv;
+
+ bhv = bhv_lookup_range(&vfsp->vfs_bh, pos, pos);
+ if (!bhv)
+ return;
+ bhv_remove(&vfsp->vfs_bh, bhv);
+ kmem_free(bhv, sizeof(*bhv));
+}
+
+void
+bhv_remove_all_vfsops(
+ struct vfs *vfsp,
+ int freebase)
+{
+ struct xfs_mount *mp;
+
+ bhv_remove_vfsops(vfsp, VFS_POSITION_QM);
+ bhv_remove_vfsops(vfsp, VFS_POSITION_DM);
+ if (!freebase)
+ return;
+ mp = XFS_BHVTOM(bhv_lookup(VFS_BHVHEAD(vfsp), &xfs_vfsops));
+ VFS_REMOVEBHV(vfsp, &mp->m_bhv);
+ xfs_mount_free(mp, 0);
+}
+
+void
+bhv_insert_all_vfsops(
+ struct vfs *vfsp)
+{
+ struct xfs_mount *mp;
+
+ mp = xfs_mount_init();
+ vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
+ vfs_insertdmapi(vfsp);
+ vfs_insertquota(vfsp);
+}