328 lines
6.3 KiB
C
328 lines
6.3 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_inum.h"
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#include "xfs_log.h"
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#include "xfs_clnt.h"
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_ag.h"
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#include "xfs_dir2.h"
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#include "xfs_imap.h"
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#include "xfs_alloc.h"
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#include "xfs_dmapi.h"
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#include "xfs_mount.h"
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#include "xfs_quota.h"
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int
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vfs_mount(
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struct bhv_desc *bdp,
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struct xfs_mount_args *args,
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struct cred *cr)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_mount)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_mount)(next, args, cr));
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}
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int
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vfs_parseargs(
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struct bhv_desc *bdp,
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char *s,
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struct xfs_mount_args *args,
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int f)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_parseargs)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_parseargs)(next, s, args, f));
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}
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int
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vfs_showargs(
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struct bhv_desc *bdp,
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struct seq_file *m)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_showargs)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_showargs)(next, m));
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}
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int
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vfs_unmount(
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struct bhv_desc *bdp,
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int fl,
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struct cred *cr)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_unmount)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_unmount)(next, fl, cr));
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}
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int
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vfs_mntupdate(
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struct bhv_desc *bdp,
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int *fl,
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struct xfs_mount_args *args)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_mntupdate)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_mntupdate)(next, fl, args));
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}
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int
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vfs_root(
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struct bhv_desc *bdp,
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struct bhv_vnode **vpp)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_root)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_root)(next, vpp));
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}
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int
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vfs_statvfs(
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struct bhv_desc *bdp,
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bhv_statvfs_t *statp,
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struct bhv_vnode *vp)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_statvfs)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_statvfs)(next, statp, vp));
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}
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int
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vfs_sync(
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struct bhv_desc *bdp,
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int fl,
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struct cred *cr)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_sync)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_sync)(next, fl, cr));
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}
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int
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vfs_vget(
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struct bhv_desc *bdp,
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struct bhv_vnode **vpp,
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struct fid *fidp)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_vget)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_vget)(next, vpp, fidp));
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}
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int
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vfs_dmapiops(
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struct bhv_desc *bdp,
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caddr_t addr)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_dmapiops)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_dmapiops)(next, addr));
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}
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int
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vfs_quotactl(
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struct bhv_desc *bdp,
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int cmd,
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int id,
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caddr_t addr)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_quotactl)
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next = BHV_NEXT(next);
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return ((*bhvtovfsops(next)->vfs_quotactl)(next, cmd, id, addr));
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}
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void
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vfs_init_vnode(
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struct bhv_desc *bdp,
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struct bhv_vnode *vp,
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struct bhv_desc *bp,
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int unlock)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_init_vnode)
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next = BHV_NEXT(next);
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((*bhvtovfsops(next)->vfs_init_vnode)(next, vp, bp, unlock));
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}
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void
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vfs_force_shutdown(
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struct bhv_desc *bdp,
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int fl,
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char *file,
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int line)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_force_shutdown)
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next = BHV_NEXT(next);
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((*bhvtovfsops(next)->vfs_force_shutdown)(next, fl, file, line));
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}
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void
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vfs_freeze(
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struct bhv_desc *bdp)
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{
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struct bhv_desc *next = bdp;
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ASSERT(next);
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while (! (bhvtovfsops(next))->vfs_freeze)
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next = BHV_NEXT(next);
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((*bhvtovfsops(next)->vfs_freeze)(next));
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}
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bhv_vfs_t *
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vfs_allocate(
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struct super_block *sb)
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{
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struct bhv_vfs *vfsp;
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vfsp = kmem_zalloc(sizeof(bhv_vfs_t), KM_SLEEP);
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bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
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INIT_LIST_HEAD(&vfsp->vfs_sync_list);
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spin_lock_init(&vfsp->vfs_sync_lock);
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init_waitqueue_head(&vfsp->vfs_wait_single_sync_task);
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vfsp->vfs_super = sb;
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sb->s_fs_info = vfsp;
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if (sb->s_flags & MS_RDONLY)
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vfsp->vfs_flag |= VFS_RDONLY;
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return vfsp;
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}
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bhv_vfs_t *
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vfs_from_sb(
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struct super_block *sb)
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{
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return (bhv_vfs_t *)sb->s_fs_info;
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}
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void
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vfs_deallocate(
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struct bhv_vfs *vfsp)
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{
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bhv_head_destroy(VFS_BHVHEAD(vfsp));
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kmem_free(vfsp, sizeof(bhv_vfs_t));
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}
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void
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vfs_insertops(
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struct bhv_vfs *vfsp,
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struct bhv_module_vfsops *vfsops)
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{
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struct bhv_desc *bdp;
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bdp = kmem_alloc(sizeof(struct bhv_desc), KM_SLEEP);
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bhv_desc_init(bdp, NULL, vfsp, vfsops);
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bhv_insert(&vfsp->vfs_bh, bdp);
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}
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void
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vfs_insertbhv(
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struct bhv_vfs *vfsp,
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struct bhv_desc *bdp,
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struct bhv_vfsops *vfsops,
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void *mount)
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{
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bhv_desc_init(bdp, mount, vfsp, vfsops);
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bhv_insert_initial(&vfsp->vfs_bh, bdp);
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}
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void
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bhv_remove_vfsops(
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struct bhv_vfs *vfsp,
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int pos)
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{
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struct bhv_desc *bhv;
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bhv = bhv_lookup_range(&vfsp->vfs_bh, pos, pos);
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if (!bhv)
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return;
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bhv_remove(&vfsp->vfs_bh, bhv);
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kmem_free(bhv, sizeof(*bhv));
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}
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void
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bhv_remove_all_vfsops(
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struct bhv_vfs *vfsp,
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int freebase)
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{
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struct xfs_mount *mp;
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bhv_remove_vfsops(vfsp, VFS_POSITION_QM);
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bhv_remove_vfsops(vfsp, VFS_POSITION_DM);
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if (!freebase)
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return;
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mp = XFS_VFSTOM(vfsp);
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VFS_REMOVEBHV(vfsp, &mp->m_bhv);
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xfs_mount_free(mp, 0);
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}
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void
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bhv_insert_all_vfsops(
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struct bhv_vfs *vfsp)
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{
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struct xfs_mount *mp;
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mp = xfs_mount_init();
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vfs_insertbhv(vfsp, &mp->m_bhv, &xfs_vfsops, mp);
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vfs_insertdmapi(vfsp);
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vfs_insertquota(vfsp);
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}
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