^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) International Business Machines Corp., 2000-2004
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/quotaops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/blkdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include "jfs_incore.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include "jfs_filsys.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "jfs_metapage.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "jfs_dinode.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include "jfs_imap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "jfs_dmap.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "jfs_superblock.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "jfs_txnmgr.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "jfs_debug.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define BITSPERPAGE (PSIZE << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define L2MEGABYTE 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define MEGABYTE (1 << L2MEGABYTE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define MEGABYTE32 (MEGABYTE << 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) /* convert block number to bmap file page number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define BLKTODMAPN(b)\
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) (((b) >> 13) + ((b) >> 23) + ((b) >> 33) + 3 + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * jfs_extendfs()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * function: extend file system;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * |-------------------------------|----------|----------|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * file system space fsck inline log
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * workspace space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * input:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * new LVSize: in LV blocks (required)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * new LogSize: in LV blocks (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * new FSSize: in LV blocks (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * new configuration:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * 1. set new LogSize as specified or default from new LVSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * 2. compute new FSCKSize from new LVSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * 3. set new FSSize as MIN(FSSize, LVSize-(LogSize+FSCKSize)) where
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * assert(new FSSize >= old FSSize),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * i.e., file system must not be shrunk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int rc = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct jfs_sb_info *sbi = JFS_SBI(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct inode *ipbmap = sbi->ipbmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct inode *ipbmap2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) struct inode *ipimap = sbi->ipimap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct jfs_log *log = sbi->log;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct bmap *bmp = sbi->bmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) s64 newLogAddress, newFSCKAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) int newFSCKSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) s64 newMapSize = 0, mapSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) s64 XAddress, XSize, nblocks, xoff, xaddr, t64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) s64 oldLVSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) s64 newFSSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) s64 VolumeSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) int newNpages = 0, nPages, newPage, xlen, t32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int tid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int log_formatted = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct inode *iplist[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) struct jfs_superblock *j_sb, *j_sb2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) s64 old_agsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) int agsizechanged = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct buffer_head *bh, *bh2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* If the volume hasn't grown, get out now */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) if (sbi->mntflag & JFS_INLINELOG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) oldLVSize = addressPXD(&sbi->logpxd) + lengthPXD(&sbi->logpxd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) oldLVSize = addressPXD(&sbi->fsckpxd) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) lengthPXD(&sbi->fsckpxd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if (oldLVSize >= newLVSize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) printk(KERN_WARNING
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) "jfs_extendfs: volume hasn't grown, returning\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) VolumeSize = i_size_read(sb->s_bdev->bd_inode) >> sb->s_blocksize_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (VolumeSize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) if (newLVSize > VolumeSize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) printk(KERN_WARNING "jfs_extendfs: invalid size\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* check the device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) bh = sb_bread(sb, newLVSize - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) if (!bh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) printk(KERN_WARNING "jfs_extendfs: invalid size\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) bforget(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* Can't extend write-protected drive */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) if (isReadOnly(ipbmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) printk(KERN_WARNING "jfs_extendfs: read-only file system\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) rc = -EROFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * reconfigure LV spaces
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * ---------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * validate new size, or, if not specified, determine new size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * reconfigure inline log space:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if ((sbi->mntflag & JFS_INLINELOG)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) if (newLogSize == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * no size specified: default to 1/256 of aggregate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) * size; rounded up to a megabyte boundary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) newLogSize = newLVSize >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) t32 = (1 << (20 - sbi->l2bsize)) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) newLogSize = (newLogSize + t32) & ~t32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) newLogSize =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) min(newLogSize, MEGABYTE32 >> sbi->l2bsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * convert the newLogSize to fs blocks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) * Since this is given in megabytes, it will always be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) * an even number of pages.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) newLogSize = (newLogSize * MEGABYTE) >> sbi->l2bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) newLogSize = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) newLogAddress = newLVSize - newLogSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) * reconfigure fsck work space:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * configure it to the end of the logical volume regardless of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * whether file system extends to the end of the aggregate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * Need enough 4k pages to cover:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * - 1 bit per block in aggregate rounded up to BPERDMAP boundary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * - 1 extra page to handle control page and intermediate level pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) * - 50 extra pages for the chkdsk service log
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) t64 = ((newLVSize - newLogSize + BPERDMAP - 1) >> L2BPERDMAP)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) << L2BPERDMAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) t32 = DIV_ROUND_UP(t64, BITSPERPAGE) + 1 + 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) newFSCKSize = t32 << sbi->l2nbperpage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) newFSCKAddress = newLogAddress - newFSCKSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) * compute new file system space;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) newFSSize = newLVSize - newLogSize - newFSCKSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /* file system cannot be shrunk */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) if (newFSSize < bmp->db_mapsize) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) rc = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) * If we're expanding enough that the inline log does not overlap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) * the old one, we can format the new log before we quiesce the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) * filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) if ((sbi->mntflag & JFS_INLINELOG) && (newLogAddress > oldLVSize)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) if ((rc = lmLogFormat(log, newLogAddress, newLogSize)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) log_formatted = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) * quiesce file system
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) * (prepare to move the inline log and to prevent map update)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) * block any new transactions and wait for completion of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) * all wip transactions and flush modified pages s.t.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * on-disk file system is in consistent state and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * log is not required for recovery.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) txQuiesce(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) /* Reset size of direct inode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) sbi->direct_inode->i_size = i_size_read(sb->s_bdev->bd_inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) if (sbi->mntflag & JFS_INLINELOG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * deactivate old inline log
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) lmLogShutdown(log);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * mark on-disk super block for fs in transition;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) * update on-disk superblock for the new space configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) * of inline log space and fsck work space descriptors:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) * N.B. FS descriptor is NOT updated;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) * crash recovery:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) * logredo(): if FM_EXTENDFS, return to fsck() for cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) * fsck(): if FM_EXTENDFS, reformat inline log and fsck
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) * workspace from superblock inline log descriptor and fsck
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) * workspace descriptor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /* read in superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if ((rc = readSuper(sb, &bh)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) j_sb = (struct jfs_superblock *)bh->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) /* mark extendfs() in progress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) j_sb->s_state |= cpu_to_le32(FM_EXTENDFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) j_sb->s_xsize = cpu_to_le64(newFSSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) PXDaddress(&j_sb->s_xfsckpxd, newFSCKAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) PXDlength(&j_sb->s_xfsckpxd, newFSCKSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) PXDaddress(&j_sb->s_xlogpxd, newLogAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) PXDlength(&j_sb->s_xlogpxd, newLogSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) /* synchronously update superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) mark_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) sync_dirty_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) * format new inline log synchronously;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) * crash recovery: if log move in progress,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * reformat log and exit success;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (!log_formatted)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) if ((rc = lmLogFormat(log, newLogAddress, newLogSize)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * activate new log
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) log->base = newLogAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) log->size = newLogSize >> (L2LOGPSIZE - sb->s_blocksize_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) if ((rc = lmLogInit(log)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) * extend block allocation map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) * ---------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) * extendfs() for new extension, retry after crash recovery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * note: both logredo() and fsck() rebuild map from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * the bitmap and configuration parameter from superblock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * (disregarding all other control information in the map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) * superblock:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * s_size: aggregate size in physical blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) * compute the new block allocation map configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) * map dinode:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * di_size: map file size in byte;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * di_nblocks: number of blocks allocated for map file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * di_mapsize: number of blocks in aggregate (covered by map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) * map control page:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) * db_mapsize: number of blocks in aggregate (covered by map);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) newMapSize = newFSSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) /* number of data pages of new bmap file:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) * roundup new size to full dmap page boundary and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) * add 1 extra dmap page for next extendfs()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) t64 = (newMapSize - 1) + BPERDMAP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) newNpages = BLKTODMAPN(t64) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) * extend map from current map (WITHOUT growing mapfile)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) * map new extension with unmapped part of the last partial
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) * dmap page, if applicable, and extra page(s) allocated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * at end of bmap by mkfs() or previous extendfs();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) extendBmap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /* compute number of blocks requested to extend */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) mapSize = bmp->db_mapsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) XAddress = mapSize; /* eXtension Address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) XSize = newMapSize - mapSize; /* eXtension Size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) old_agsize = bmp->db_agsize; /* We need to know if this changes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) /* compute number of blocks that can be extended by current mapfile */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) t64 = dbMapFileSizeToMapSize(ipbmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) if (mapSize > t64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) printk(KERN_ERR "jfs_extendfs: mapSize (0x%Lx) > t64 (0x%Lx)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) (long long) mapSize, (long long) t64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) rc = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) nblocks = min(t64 - mapSize, XSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) * update map pages for new extension:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) * update/init dmap and bubble up the control hierarchy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * incrementally fold up dmaps into upper levels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * update bmap control page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if ((rc = dbExtendFS(ipbmap, XAddress, nblocks)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) agsizechanged |= (bmp->db_agsize != old_agsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) * the map now has extended to cover additional nblocks:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) * dn_mapsize = oldMapsize + nblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* ipbmap->i_mapsize += nblocks; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) XSize -= nblocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) * grow map file to cover remaining extension
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) * and/or one extra dmap page for next extendfs();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) * allocate new map pages and its backing blocks, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) * update map file xtree
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) /* compute number of data pages of current bmap file */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) nPages = ipbmap->i_size >> L2PSIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /* need to grow map file ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) if (nPages == newNpages)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) goto finalizeBmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * grow bmap file for the new map pages required:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) * allocate growth at the start of newly extended region;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) * bmap file only grows sequentially, i.e., both data pages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) * and possibly xtree index pages may grow in append mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) * s.t. logredo() can reconstruct pre-extension state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * by washing away bmap file of pages outside s_size boundary;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * journal map file growth as if a regular file growth:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * (note: bmap is created with di_mode = IFJOURNAL|IFREG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * journaling of bmap file growth is not required since
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) * logredo() do/can not use log records of bmap file growth
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) * but it provides careful write semantics, pmap update, etc.;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) /* synchronous write of data pages: bmap data pages are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) * cached in meta-data cache, and not written out
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) * by txCommit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) rc = filemap_fdatawait(ipbmap->i_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) rc = filemap_write_and_wait(ipbmap->i_mapping);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) diWriteSpecial(ipbmap, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) newPage = nPages; /* first new page number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) xoff = newPage << sbi->l2nbperpage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) xlen = (newNpages - nPages) << sbi->l2nbperpage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) xlen = min(xlen, (int) nblocks) & ~(sbi->nbperpage - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) xaddr = XAddress;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) tid = txBegin(sb, COMMIT_FORCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) if ((rc = xtAppend(tid, ipbmap, 0, xoff, nblocks, &xlen, &xaddr, 0))) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) txEnd(tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) /* update bmap file size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) ipbmap->i_size += xlen << sbi->l2bsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) inode_add_bytes(ipbmap, xlen << sbi->l2bsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) iplist[0] = ipbmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) rc = txCommit(tid, 1, &iplist[0], COMMIT_FORCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) txEnd(tid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (rc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) * map file has been grown now to cover extension to further out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) * di_size = new map file size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) * if huge extension, the previous extension based on previous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) * map file size may not have been sufficient to cover whole extension
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) * (it could have been used up for new map pages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) * but the newly grown map file now covers lot bigger new free space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) * available for further extension of map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) /* any more blocks to extend ? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) if (XSize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) goto extendBmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) finalizeBmap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) /* finalize bmap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) dbFinalizeBmap(ipbmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) * update inode allocation map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) * ---------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) * move iag lists from old to new iag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * agstart field is not updated for logredo() to reconstruct
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * iag lists if system crash occurs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * (computation of ag number from agstart based on agsize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) * will correctly identify the new ag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) /* if new AG size the same as old AG size, done! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) if (agsizechanged) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) if ((rc = diExtendFS(ipimap, ipbmap)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) /* finalize imap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if ((rc = diSync(ipimap)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * finalize
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * --------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * extension is committed when on-disk super block is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) * updated with new descriptors: logredo will recover
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) * crash before it to pre-extension state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) /* sync log to skip log replay of bmap file growth transaction; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) /* lmLogSync(log, 1); */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) * synchronous write bmap global control page;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) * for crash before completion of write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) * logredo() will recover to pre-extendfs state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) * for crash after completion of write,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) * logredo() will recover post-extendfs state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) if ((rc = dbSync(ipbmap)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) * copy primary bmap inode to secondary bmap inode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) ipbmap2 = diReadSpecial(sb, BMAP_I, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (ipbmap2 == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) printk(KERN_ERR "jfs_extendfs: diReadSpecial(bmap) failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) memcpy(&JFS_IP(ipbmap2)->i_xtroot, &JFS_IP(ipbmap)->i_xtroot, 288);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) ipbmap2->i_size = ipbmap->i_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) ipbmap2->i_blocks = ipbmap->i_blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) diWriteSpecial(ipbmap2, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) diFreeSpecial(ipbmap2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) * update superblock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if ((rc = readSuper(sb, &bh)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) goto error_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) j_sb = (struct jfs_superblock *)bh->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) /* mark extendfs() completion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) j_sb->s_state &= cpu_to_le32(~FM_EXTENDFS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) j_sb->s_size = cpu_to_le64(bmp->db_mapsize <<
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) le16_to_cpu(j_sb->s_l2bfactor));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) j_sb->s_agsize = cpu_to_le32(bmp->db_agsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) /* update inline log space descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) if (sbi->mntflag & JFS_INLINELOG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) PXDaddress(&(j_sb->s_logpxd), newLogAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) PXDlength(&(j_sb->s_logpxd), newLogSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) /* record log's mount serial number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) j_sb->s_logserial = cpu_to_le32(log->serial);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) /* update fsck work space descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) PXDaddress(&(j_sb->s_fsckpxd), newFSCKAddress);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) PXDlength(&(j_sb->s_fsckpxd), newFSCKSize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) j_sb->s_fscklog = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) /* sb->s_fsckloglen remains the same */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) /* Update secondary superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) bh2 = sb_bread(sb, SUPER2_OFF >> sb->s_blocksize_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) if (bh2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) j_sb2 = (struct jfs_superblock *)bh2->b_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) memcpy(j_sb2, j_sb, sizeof (struct jfs_superblock));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) mark_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) sync_dirty_buffer(bh2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) brelse(bh2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) /* write primary superblock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) mark_buffer_dirty(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) sync_dirty_buffer(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) brelse(bh);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) goto resume;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) error_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) jfs_error(sb, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) resume:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) * resume file system transactions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) txResume(sb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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