/* * 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 * (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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _H_JFS_IMAP #define _H_JFS_IMAP #include "jfs_txnmgr.h" /* * 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 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 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) /* convert iag number to logical block number of the iag page */ #define IAGTOLBLK(iagno,l2nbperpg) (((iagno) + 1) << (l2nbperpg)) /* get the starting block number of the 4K page of an inode extent * that contains ino. */ #define INOPBLK(pxd,ino,l2nbperpg) (addressPXD((pxd)) + \ ((((ino) & (INOSPEREXT-1)) >> L2INOSPERPAGE) << (l2nbperpg))) /* * inode allocation map: * * 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 */ /* 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. */ __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 */ /* (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 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 */ }; /* (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 */ }; /* * 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_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 */ 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_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 */ struct iagctl in_agctl[MAXAG]; /* AG control information */ }; /* * In-core inode map control page */ 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 */ u32 *im_DBGdimap; atomic_t im_numinos; /* num of backed inodes */ atomic_t im_numfree; /* num of free backed inodes */ }; #define im_freeiag im_imap.in_freeiag #define im_nextiag im_imap.in_nextiag #define im_agctl im_imap.in_agctl #define im_nbperiext im_imap.in_nbperiext #define im_l2nbperiext im_imap.in_l2nbperiext /* for standalone testdriver */ #define im_diskblock im_imap.in_diskblock #define im_maxag im_imap.in_maxag extern int diFree(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, 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); extern int diRead(struct inode *); extern struct inode *diReadSpecial(struct super_block *, ino_t, int); extern void diWriteSpecial(struct inode *, int); extern void diFreeSpecial(struct inode *); extern int diWrite(tid_t tid, struct inode *); #endif /* _H_JFS_IMAP */ /tr>parent926af6273fc683cd98cd0ce7bf0d04a02eed6742 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflict was an interaction between a bug fix in the netvsc driver in 'net' and an optimization of the RX path in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/testing/ktest/examples')