/*
- * Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2002-2003 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
struct filefork {
struct cnode *ff_cp; /* cnode associated with this fork */
struct rl_head ff_invalidranges; /* Areas of disk that should read back as zeroes */
+ long ff_evtonly_refs; /* number of vnode references used solely for events (O_EVTONLY) */
union {
struct hfslockf *ffu_lockf; /* Head of byte-level lock list. */
void *ffu_sysdata; /* private data for system files */
char *ffu_symlinkptr; /* symbolic link pathname */
} ff_un;
struct cat_fork ff_data;
- u_int32_t ff_unallocblocks; /* unallocated blocks (until cmap) */
};
+typedef struct filefork filefork_t;
/* Aliases for common fields */
#define ff_size ff_data.cf_size
#define ff_clumpsize ff_data.cf_clump
+#define ff_bytesread ff_data.cf_bytesread
#define ff_blocks ff_data.cf_blocks
#define ff_extents ff_data.cf_extents
+#define ff_unallocblocks ff_data.cf_vblocks
+
#define ff_symlinkptr ff_un.ffu_symlinkptr
#define ff_lockf ff_un.ffu_lockf
/* The btree code still needs these... */
#define fcbEOF ff_size
-#define fcbClmpSize ff_clumpsize
#define fcbExtents ff_extents
#define fcbBTCBPtr ff_un.ffu_sysdata
struct vnode *c_devvp; /* vnode for block I/O */
dev_t c_dev; /* cnode's device */
struct dquot *c_dquot[MAXQUOTAS]; /* cnode's quota info */
+ struct klist c_knotes; /* knotes attached to this vnode */
cnid_t c_childhint; /* catalog hint for children */
struct cat_desc c_desc; /* cnode's descriptor */
struct cat_attr c_attr; /* cnode's attributes */
SLIST_HEAD(hfs_indexhead, hfs_index) c_indexlist; /* directory index list */
+ long c_evtonly_refs; /* number of vnode references used solely for events (O_EVTONLY) */
struct filefork *c_datafork; /* cnode's data fork */
struct filefork *c_rsrcfork; /* cnode's rsrc fork */
};
+typedef struct cnode cnode_t;
/* Aliases for common cnode fields */
#define c_cnid c_desc.cd_cnid
/* Runtime cnode flags (kept in c_flag) */
-#define C_ACCESS 0x0001 /* Access time update request */
-#define C_CHANGE 0x0002 /* Change time update request */
-#define C_UPDATE 0x0004 /* Modification time update request */
-#define C_MODIFIED 0x0008 /* CNode has been modified */
-#define C_ATIMEMOD 0x0010 /* Access time has been modified */
+#define C_ACCESS 0x00001 /* Access time update request */
+#define C_CHANGE 0x00002 /* Change time update request */
+#define C_UPDATE 0x00004 /* Modification time update request */
+#define C_MODIFIED 0x00008 /* CNode has been modified */
-#define C_NOEXISTS 0x0020 /* CNode has been deleted, catalog entry is gone */
-#define C_DELETED 0x0040 /* CNode has been marked to be deleted */
-#define C_HARDLINK 0x0080 /* CNode is a hard link */
+#define C_RELOCATING 0x00010 /* CNode's fork is being relocated */
+#define C_NOEXISTS 0x00020 /* CNode has been deleted, catalog entry is gone */
+#define C_DELETED 0x00040 /* CNode has been marked to be deleted */
+#define C_HARDLINK 0x00080 /* CNode is a hard link */
-#define C_ALLOC 0x0100 /* CNode is being allocated */
-#define C_WALLOC 0x0200 /* Waiting for allocation to finish */
-#define C_TRANSIT 0x0400 /* CNode is getting recycled */
-#define C_WTRANSIT 0x0800 /* Waiting for cnode getting recycled */
+#define C_ALLOC 0x00100 /* CNode is being allocated */
+#define C_WALLOC 0x00200 /* Waiting for allocation to finish */
+#define C_TRANSIT 0x00400 /* CNode is getting recycled */
+#define C_WTRANSIT 0x00800 /* Waiting for cnode getting recycled */
+#define C_NOBLKMAP 0x01000 /* CNode blocks cannot be mapped */
+#define C_WBLKMAP 0x02000 /* Waiting for block map */
-#define C_RENAME 0x1000 /* CNode is being renamed */
-#define C_ZFWANTSYNC 0x2000 /* fsync requested and file has holes */
+#define C_ZFWANTSYNC 0x04000 /* fsync requested and file has holes */
+#define C_VPREFHELD 0x08000 /* resource fork has done a vget() on c_vp (for its parent ptr) */
+
+#define C_FROMSYNC 0x10000 /* fsync was called from sync */
+#define C_FORCEUPDATE 0x20000 /* force the catalog entry update */
#define ZFTIMELIMIT (5 * 60)
FTOC(fp)->c_rsrc_vp : \
FTOC(fp)->c_vp)
+#define EVTONLYREFS(vp) ((vp->v_type == VREG) ? VTOF(vp)->ff_evtonly_refs : VTOC(vp)->c_evtonly_refs)
+
/*
* Test for a resource fork
*/
*/
#define C_TIMEMASK (C_ACCESS | C_CHANGE | C_UPDATE)
-#define ATIME_ACCURACY 60
+#define C_CHANGEMASK (C_ACCESS | C_CHANGE | C_UPDATE | C_MODIFIED)
+
+#define ATIME_ACCURACY 1
+#define ATIME_ONDISK_ACCURACY 300
#define CTIMES(cp, t1, t2) { \
if ((cp)->c_flag & C_TIMEMASK) { \
/* \
- * If only the access time is changing then defer \
- * updating it on-disk util later (in hfs_inactive). \
- * If it was recently updated then skip the update. \
+ * Only do the update if it is more than just \
+ * the C_ACCESS field being updated. \
*/ \
- if (((cp)->c_flag & (C_TIMEMASK | C_MODIFIED)) == C_ACCESS) { \
- if (((cp)->c_flag & C_ATIMEMOD) || \
- (t1)->tv_sec > ((cp)->c_atime + ATIME_ACCURACY)) { \
- (cp)->c_atime = (t1)->tv_sec; \
- (cp)->c_flag |= C_ATIMEMOD; \
- } \
- (cp)->c_flag &= ~C_ACCESS; \
- } else { \
+ if (((cp)->c_flag & C_CHANGEMASK) != C_ACCESS) { \
if ((cp)->c_flag & C_ACCESS) { \
(cp)->c_atime = (t1)->tv_sec; \
} \
projects / apple / xnu.git / blobdiff