583fa586f0
There's just one caller of this helper, and it's much cleaner to just merge the xfs_do_force_shutdown call into it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
151 lines
4.2 KiB
C
151 lines
4.2 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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#ifndef __XFS_VNODE_H__
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#define __XFS_VNODE_H__
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#include "xfs_fs.h"
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struct file;
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struct xfs_inode;
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struct xfs_iomap;
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struct attrlist_cursor_kern;
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/*
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* Return values for xfs_inactive. A return value of
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* VN_INACTIVE_NOCACHE implies that the file system behavior
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* has disassociated its state and bhv_desc_t from the vnode.
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*/
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#define VN_INACTIVE_CACHE 0
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#define VN_INACTIVE_NOCACHE 1
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/*
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* Flags for read/write calls - same values as IRIX
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*/
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#define IO_ISAIO 0x00001 /* don't wait for completion */
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#define IO_ISDIRECT 0x00004 /* bypass page cache */
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#define IO_INVIS 0x00020 /* don't update inode timestamps */
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/*
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* Flags for xfs_inode_flush
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*/
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#define FLUSH_SYNC 1 /* wait for flush to complete */
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/*
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* Flush/Invalidate options for vop_toss/flush/flushinval_pages.
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*/
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#define FI_NONE 0 /* none */
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#define FI_REMAPF 1 /* Do a remapf prior to the operation */
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#define FI_REMAPF_LOCKED 2 /* Do a remapf prior to the operation.
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Prevent VM access to the pages until
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the operation completes. */
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extern void vn_init(void);
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/*
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* Yeah, these don't take vnode anymore at all, all this should be
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* cleaned up at some point.
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*/
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extern void vn_iowait(struct xfs_inode *ip);
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extern void vn_iowake(struct xfs_inode *ip);
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#define IHOLD(ip) \
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do { \
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ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
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atomic_inc(&(VFS_I(ip)->i_count)); \
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xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
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} while (0)
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#define IRELE(ip) \
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do { \
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xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
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iput(VFS_I(ip)); \
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} while (0)
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/*
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* Dealing with bad inodes
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*/
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static inline int VN_BAD(struct inode *vp)
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{
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return is_bad_inode(vp);
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}
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/*
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* Extracting atime values in various formats
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*/
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static inline void vn_atime_to_bstime(struct inode *vp, xfs_bstime_t *bs_atime)
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{
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bs_atime->tv_sec = vp->i_atime.tv_sec;
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bs_atime->tv_nsec = vp->i_atime.tv_nsec;
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}
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static inline void vn_atime_to_timespec(struct inode *vp, struct timespec *ts)
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{
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*ts = vp->i_atime;
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}
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static inline void vn_atime_to_time_t(struct inode *vp, time_t *tt)
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{
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*tt = vp->i_atime.tv_sec;
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}
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/*
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* Some useful predicates.
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*/
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#define VN_MAPPED(vp) mapping_mapped(vp->i_mapping)
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#define VN_CACHED(vp) (vp->i_mapping->nrpages)
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#define VN_DIRTY(vp) mapping_tagged(vp->i_mapping, \
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PAGECACHE_TAG_DIRTY)
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/*
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* Tracking vnode activity.
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*/
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#if defined(XFS_INODE_TRACE)
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#define INODE_TRACE_SIZE 16 /* number of trace entries */
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#define INODE_KTRACE_ENTRY 1
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#define INODE_KTRACE_EXIT 2
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#define INODE_KTRACE_HOLD 3
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#define INODE_KTRACE_REF 4
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#define INODE_KTRACE_RELE 5
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extern void _xfs_itrace_entry(struct xfs_inode *, const char *, inst_t *);
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extern void _xfs_itrace_exit(struct xfs_inode *, const char *, inst_t *);
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extern void xfs_itrace_hold(struct xfs_inode *, char *, int, inst_t *);
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extern void _xfs_itrace_ref(struct xfs_inode *, char *, int, inst_t *);
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extern void xfs_itrace_rele(struct xfs_inode *, char *, int, inst_t *);
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#define xfs_itrace_entry(ip) \
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_xfs_itrace_entry(ip, __func__, (inst_t *)__return_address)
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#define xfs_itrace_exit(ip) \
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_xfs_itrace_exit(ip, __func__, (inst_t *)__return_address)
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#define xfs_itrace_exit_tag(ip, tag) \
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_xfs_itrace_exit(ip, tag, (inst_t *)__return_address)
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#define xfs_itrace_ref(ip) \
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_xfs_itrace_ref(ip, __FILE__, __LINE__, (inst_t *)__return_address)
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#else
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#define xfs_itrace_entry(a)
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#define xfs_itrace_exit(a)
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#define xfs_itrace_exit_tag(a, b)
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#define xfs_itrace_hold(a, b, c, d)
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#define xfs_itrace_ref(a)
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#define xfs_itrace_rele(a, b, c, d)
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#endif
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#endif /* __XFS_VNODE_H__ */
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