/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* 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; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will 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 to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_IMAP
* jfs_imap.h: disk inode manager
*/
-#define EXTSPERIAG 128 /* number of disk inode extent per iag */
-#define IMAPBLKNO 0 /* lblkno of dinomap within inode map */
-#define SMAPSZ 4 /* number of words per summary map */
+#define EXTSPERIAG 128 /* number of disk inode extent per iag */
+#define IMAPBLKNO 0 /* lblkno of dinomap within inode map */
+#define SMAPSZ 4 /* number of words per summary map */
#define EXTSPERSUM 32 /* number of extents per summary map entry */
#define L2EXTSPERSUM 5 /* l2 number of extents per summary map */
#define PGSPERIEXT 4 /* number of 4K pages per dinode extent */
-#define MAXIAGS ((1<<20)-1) /* maximum number of iags */
-#define MAXAG 128 /* maximum number of allocation groups */
+#define MAXIAGS ((1<<20)-1) /* maximum number of iags */
+#define MAXAG 128 /* maximum number of allocation groups */
-#define AMAPSIZE 512 /* bytes in the IAG allocation maps */
-#define SMAPSIZE 16 /* bytes in the IAG summary maps */
+#define AMAPSIZE 512 /* bytes in the IAG allocation maps */
+#define SMAPSIZE 16 /* bytes in the IAG summary maps */
/* convert inode number to iag number */
#define INOTOIAG(ino) ((ino) >> L2INOSPERIAG)
/* get the starting block number of the 4K page of an inode extent
* that contains ino.
*/
-#define INOPBLK(pxd,ino,l2nbperpg) (addressPXD((pxd)) + \
+#define INOPBLK(pxd,ino,l2nbperpg) (addressPXD((pxd)) + \
((((ino) & (INOSPEREXT-1)) >> L2INOSPERPAGE) << (l2nbperpg)))
/*
* inode allocation map:
- *
- * inode allocation map consists of
+ *
+ * inode allocation map consists of
* . the inode map control page and
* . inode allocation group pages (per 4096 inodes)
* which are addressed by standard JFS xtree.
* inode allocation group page (per 4096 inodes of an AG)
*/
struct iag {
- __le64 agstart; /* 8: starting block of ag */
- __le32 iagnum; /* 4: inode allocation group number */
- __le32 inofreefwd; /* 4: ag inode free list forward */
- __le32 inofreeback; /* 4: ag inode free list back */
- __le32 extfreefwd; /* 4: ag inode extent free list forward */
- __le32 extfreeback; /* 4: ag inode extent free list back */
- __le32 iagfree; /* 4: iag free list */
+ __le64 agstart; /* 8: starting block of ag */
+ __le32 iagnum; /* 4: inode allocation group number */
+ __le32 inofreefwd; /* 4: ag inode free list forward */
+ __le32 inofreeback; /* 4: ag inode free list back */
+ __le32 extfreefwd; /* 4: ag inode extent free list forward */
+ __le32 extfreeback; /* 4: ag inode extent free list back */
+ __le32 iagfree; /* 4: iag free list */
/* summary map: 1 bit per inode extent */
__le32 inosmap[SMAPSZ]; /* 16: sum map of mapwords w/ free inodes;
- * note: this indicates free and backed
- * inodes, if the extent is not backed the
- * value will be 1. if the extent is
- * backed but all inodes are being used the
- * value will be 1. if the extent is
- * backed but at least one of the inodes is
- * free the value will be 0.
+ * note: this indicates free and backed
+ * inodes, if the extent is not backed the
+ * value will be 1. if the extent is
+ * backed but all inodes are being used the
+ * value will be 1. if the extent is
+ * backed but at least one of the inodes is
+ * free the value will be 0.
*/
__le32 extsmap[SMAPSZ]; /* 16: sum map of mapwords w/ free extents */
- __le32 nfreeinos; /* 4: number of free inodes */
- __le32 nfreeexts; /* 4: number of free extents */
+ __le32 nfreeinos; /* 4: number of free inodes */
+ __le32 nfreeexts; /* 4: number of free extents */
/* (72) */
u8 pad[1976]; /* 1976: pad to 2048 bytes */
/* allocation bit map: 1 bit per inode (0 - free, 1 - allocated) */
- __le32 wmap[EXTSPERIAG]; /* 512: working allocation map */
+ __le32 wmap[EXTSPERIAG]; /* 512: working allocation map */
__le32 pmap[EXTSPERIAG]; /* 512: persistent allocation map */
pxd_t inoext[EXTSPERIAG]; /* 1024: inode extent addresses */
}; /* (4096) */
* per AG control information (in inode map control page)
*/
struct iagctl_disk {
- __le32 inofree; /* 4: free inode list anchor */
- __le32 extfree; /* 4: free extent list anchor */
- __le32 numinos; /* 4: number of backed inodes */
- __le32 numfree; /* 4: number of free inodes */
+ __le32 inofree; /* 4: free inode list anchor */
+ __le32 extfree; /* 4: free extent list anchor */
+ __le32 numinos; /* 4: number of backed inodes */
+ __le32 numfree; /* 4: number of free inodes */
}; /* (16) */
struct iagctl {
- int inofree; /* free inode list anchor */
- int extfree; /* free extent list anchor */
- int numinos; /* number of backed inodes */
- int numfree; /* number of free inodes */
+ int inofree; /* free inode list anchor */
+ int extfree; /* free extent list anchor */
+ int numinos; /* number of backed inodes */
+ int numfree; /* number of free inodes */
};
/*
* per fileset/aggregate inode map control page
*/
struct dinomap_disk {
- __le32 in_freeiag; /* 4: free iag list anchor */
- __le32 in_nextiag; /* 4: next free iag number */
- __le32 in_numinos; /* 4: num of backed inodes */
+ __le32 in_freeiag; /* 4: free iag list anchor */
+ __le32 in_nextiag; /* 4: next free iag number */
+ __le32 in_numinos; /* 4: num of backed inodes */
__le32 in_numfree; /* 4: num of free backed inodes */
__le32 in_nbperiext; /* 4: num of blocks per inode extent */
- __le32 in_l2nbperiext; /* 4: l2 of in_nbperiext */
- __le32 in_diskblock; /* 4: for standalone test driver */
- __le32 in_maxag; /* 4: for standalone test driver */
- u8 pad[2016]; /* 2016: pad to 2048 */
+ __le32 in_l2nbperiext; /* 4: l2 of in_nbperiext */
+ __le32 in_diskblock; /* 4: for standalone test driver */
+ __le32 in_maxag; /* 4: for standalone test driver */
+ u8 pad[2016]; /* 2016: pad to 2048 */
struct iagctl_disk in_agctl[MAXAG]; /* 2048: AG control information */
}; /* (4096) */
struct dinomap {
- int in_freeiag; /* free iag list anchor */
- int in_nextiag; /* next free iag number */
- int in_numinos; /* num of backed inodes */
- int in_numfree; /* num of free backed inodes */
+ int in_freeiag; /* free iag list anchor */
+ int in_nextiag; /* next free iag number */
+ int in_numinos; /* num of backed inodes */
+ int in_numfree; /* num of free backed inodes */
int in_nbperiext; /* num of blocks per inode extent */
- int in_l2nbperiext; /* l2 of in_nbperiext */
- int in_diskblock; /* for standalone test driver */
- int in_maxag; /* for standalone test driver */
+ int in_l2nbperiext; /* l2 of in_nbperiext */
+ int in_diskblock; /* for standalone test driver */
+ int in_maxag; /* for standalone test driver */
struct iagctl in_agctl[MAXAG]; /* AG control information */
};
*/
struct inomap {
struct dinomap im_imap; /* 4096: inode allocation control */
- struct inode *im_ipimap; /* 4: ptr to inode for imap */
- struct mutex im_freelock; /* 4: iag free list lock */
- struct mutex im_aglock[MAXAG]; /* 512: per AG locks */
+ struct inode *im_ipimap; /* 4: ptr to inode for imap */
+ struct mutex im_freelock; /* 4: iag free list lock */
+ struct mutex im_aglock[MAXAG]; /* 512: per AG locks */
u32 *im_DBGdimap;
atomic_t im_numinos; /* num of backed inodes */
atomic_t im_numfree; /* num of free backed inodes */
#define im_maxag im_imap.in_maxag
extern int diFree(struct inode *);
-extern int diAlloc(struct inode *, boolean_t, struct inode *);
+extern int diAlloc(struct inode *, bool, struct inode *);
extern int diSync(struct inode *);
/* external references */
extern int diUpdatePMap(struct inode *ipimap, unsigned long inum,
- boolean_t is_free, struct tblock * tblk);
+ bool is_free, struct tblock * tblk);
extern int diExtendFS(struct inode *ipimap, struct inode *ipbmap);
extern int diMount(struct inode *);
extern int diUnmount(struct inode *, int);
projects / karo-tx-linux.git / blobdiff