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authorEvgeniy Dushistov <dushistov@mail.ru>2006-06-25 08:47:29 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 13:01:04 -0400
commit647b7e87b56f594daf648f44abfbeeb5eb6a9457 (patch)
tree2a81679a2a9f7ee0a0ad984fbae4d43be050fd51
parentf391475812ba39afa322c835217ffe936f5e754a (diff)
[PATCH] ufs: one way to access super block
Super block of UFS usually has size >512, because of fragment size may be 512, this cause some problems. Currently, there are two methods to work with ufs super block: 1) split structure which describes ufs super blocks into structures with size <=512 2) use one structure which describes ufs super block, and hope that array of "buffer_head" which holds "super block", has such construction: bh[n]->b_data + bh[n]->b_size == bh[n + 1]->b_data The second variant may cause some problems in the future, and usage of two variants cause unnecessary code duplication. This patch remove the second variant. Also patch contains some CodingStyle fixes. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat
-rw-r--r--fs/ufs/super.c217
-rw-r--r--fs/ufs/util.h52
-rw-r--r--include/linux/ufs_fs.h61
3 files changed, 173 insertions, 157 deletions
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index c8339e566380..3aadbd3167a6 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -94,82 +94,77 @@
94/* 94/*
95 * Print contents of ufs_super_block, useful for debugging 95 * Print contents of ufs_super_block, useful for debugging
96 */ 96 */
97void ufs_print_super_stuff(struct super_block *sb, 97static void ufs_print_super_stuff(struct super_block *sb, unsigned flags,
98 struct ufs_super_block_first * usb1, 98 struct ufs_super_block_first *usb1,
99 struct ufs_super_block_second * usb2, 99 struct ufs_super_block_second *usb2,
100 struct ufs_super_block_third * usb3) 100 struct ufs_super_block_third *usb3)
101{ 101{
102 printk("ufs_print_super_stuff\n"); 102 printk("ufs_print_super_stuff\n");
103 printk("size of usb: %zu\n", sizeof(struct ufs_super_block)); 103 printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb3->fs_magic));
104 printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb3->fs_magic)); 104 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
105 printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno)); 105 printk(" fs_size: %llu\n", (unsigned long long)
106 printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno)); 106 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size));
107 printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno)); 107 printk(" fs_dsize: %llu\n", (unsigned long long)
108 printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno)); 108 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize));
109 printk(" cgoffset: %u\n", fs32_to_cpu(sb, usb1->fs_cgoffset)); 109 printk(" bsize: %u\n",
110 printk(" ~cgmask: 0x%x\n", ~fs32_to_cpu(sb, usb1->fs_cgmask)); 110 fs32_to_cpu(sb, usb1->fs_bsize));
111 printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size)); 111 printk(" fsize: %u\n",
112 printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize)); 112 fs32_to_cpu(sb, usb1->fs_fsize));
113 printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg)); 113 printk(" fs_volname: %s\n", usb2->fs_un.fs_u2.fs_volname);
114 printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize)); 114 printk(" fs_sblockloc: %llu\n", (unsigned long long)
115 printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize)); 115 fs64_to_cpu(sb, usb2->fs_un.fs_u2.fs_sblockloc));
116 printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag)); 116 printk(" cs_ndir(No of dirs): %llu\n", (unsigned long long)
117 printk(" fragshift: %u\n", fs32_to_cpu(sb, usb1->fs_fragshift)); 117 fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_ndir));
118 printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask)); 118 printk(" cs_nbfree(No of free blocks): %llu\n",
119 printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift)); 119 (unsigned long long)
120 printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize)); 120 fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree));
121 printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc)); 121 } else {
122 printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg)); 122 printk(" sblkno: %u\n", fs32_to_cpu(sb, usb1->fs_sblkno));
123 printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg)); 123 printk(" cblkno: %u\n", fs32_to_cpu(sb, usb1->fs_cblkno));
124 printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg)); 124 printk(" iblkno: %u\n", fs32_to_cpu(sb, usb1->fs_iblkno));
125 printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr)); 125 printk(" dblkno: %u\n", fs32_to_cpu(sb, usb1->fs_dblkno));
126 printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize)); 126 printk(" cgoffset: %u\n",
127 printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize)); 127 fs32_to_cpu(sb, usb1->fs_cgoffset));
128 printk(" fstodb: %u\n", fs32_to_cpu(sb, usb1->fs_fsbtodb)); 128 printk(" ~cgmask: 0x%x\n",
129 printk(" contigsumsize: %d\n", fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize)); 129 ~fs32_to_cpu(sb, usb1->fs_cgmask));
130 printk(" postblformat: %u\n", fs32_to_cpu(sb, usb3->fs_postblformat)); 130 printk(" size: %u\n", fs32_to_cpu(sb, usb1->fs_size));
131 printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos)); 131 printk(" dsize: %u\n", fs32_to_cpu(sb, usb1->fs_dsize));
132 printk(" ndir %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir)); 132 printk(" ncg: %u\n", fs32_to_cpu(sb, usb1->fs_ncg));
133 printk(" nifree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree)); 133 printk(" bsize: %u\n", fs32_to_cpu(sb, usb1->fs_bsize));
134 printk(" nbfree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)); 134 printk(" fsize: %u\n", fs32_to_cpu(sb, usb1->fs_fsize));
135 printk(" nffree %u\n", fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree)); 135 printk(" frag: %u\n", fs32_to_cpu(sb, usb1->fs_frag));
136 printk("\n"); 136 printk(" fragshift: %u\n",
137} 137 fs32_to_cpu(sb, usb1->fs_fragshift));
138 138 printk(" ~fmask: %u\n", ~fs32_to_cpu(sb, usb1->fs_fmask));
139/* 139 printk(" fshift: %u\n", fs32_to_cpu(sb, usb1->fs_fshift));
140 * Print contents of ufs2 ufs_super_block, useful for debugging 140 printk(" sbsize: %u\n", fs32_to_cpu(sb, usb1->fs_sbsize));
141 */ 141 printk(" spc: %u\n", fs32_to_cpu(sb, usb1->fs_spc));
142void ufs2_print_super_stuff( 142 printk(" cpg: %u\n", fs32_to_cpu(sb, usb1->fs_cpg));
143 struct super_block *sb, 143 printk(" ipg: %u\n", fs32_to_cpu(sb, usb1->fs_ipg));
144 struct ufs_super_block *usb) 144 printk(" fpg: %u\n", fs32_to_cpu(sb, usb1->fs_fpg));
145{ 145 printk(" csaddr: %u\n", fs32_to_cpu(sb, usb1->fs_csaddr));
146 printk("ufs_print_super_stuff\n"); 146 printk(" cssize: %u\n", fs32_to_cpu(sb, usb1->fs_cssize));
147 printk("size of usb: %zu\n", sizeof(struct ufs_super_block)); 147 printk(" cgsize: %u\n", fs32_to_cpu(sb, usb1->fs_cgsize));
148 printk(" magic: 0x%x\n", fs32_to_cpu(sb, usb->fs_magic)); 148 printk(" fstodb: %u\n",
149 printk(" fs_size: %llu\n", 149 fs32_to_cpu(sb, usb1->fs_fsbtodb));
150 (unsigned long long)fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_size)); 150 printk(" nrpos: %u\n", fs32_to_cpu(sb, usb3->fs_nrpos));
151 printk(" fs_dsize: %llu\n", 151 printk(" ndir %u\n",
152 (unsigned long long)fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_dsize)); 152 fs32_to_cpu(sb, usb1->fs_cstotal.cs_ndir));
153 printk(" bsize: %u\n", fs32_to_cpu(sb, usb->fs_bsize)); 153 printk(" nifree %u\n",
154 printk(" fsize: %u\n", fs32_to_cpu(sb, usb->fs_fsize)); 154 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nifree));
155 printk(" fs_volname: %s\n", usb->fs_u11.fs_u2.fs_volname); 155 printk(" nbfree %u\n",
156 printk(" fs_fsmnt: %s\n", usb->fs_u11.fs_u2.fs_fsmnt); 156 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree));
157 printk(" fs_sblockloc: %llu\n", 157 printk(" nffree %u\n",
158 (unsigned long long)fs64_to_cpu(sb, 158 fs32_to_cpu(sb, usb1->fs_cstotal.cs_nffree));
159 usb->fs_u11.fs_u2.fs_sblockloc)); 159 }
160 printk(" cs_ndir(No of dirs): %llu\n",
161 (unsigned long long)fs64_to_cpu(sb,
162 usb->fs_u11.fs_u2.fs_cstotal.cs_ndir));
163 printk(" cs_nbfree(No of free blocks): %llu\n",
164 (unsigned long long)fs64_to_cpu(sb,
165 usb->fs_u11.fs_u2.fs_cstotal.cs_nbfree));
166 printk("\n"); 160 printk("\n");
167} 161}
168 162
169/* 163/*
170 * Print contents of ufs_cylinder_group, useful for debugging 164 * Print contents of ufs_cylinder_group, useful for debugging
171 */ 165 */
172void ufs_print_cylinder_stuff(struct super_block *sb, struct ufs_cylinder_group *cg) 166static void ufs_print_cylinder_stuff(struct super_block *sb,
167 struct ufs_cylinder_group *cg)
173{ 168{
174 printk("\nufs_print_cylinder_stuff\n"); 169 printk("\nufs_print_cylinder_stuff\n");
175 printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group)); 170 printk("size of ucg: %zu\n", sizeof(struct ufs_cylinder_group));
@@ -196,11 +191,17 @@ void ufs_print_cylinder_stuff(struct super_block *sb, struct ufs_cylinder_group
196 printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff)); 191 printk(" iuseoff: %u\n", fs32_to_cpu(sb, cg->cg_iusedoff));
197 printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff)); 192 printk(" freeoff: %u\n", fs32_to_cpu(sb, cg->cg_freeoff));
198 printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff)); 193 printk(" nextfreeoff: %u\n", fs32_to_cpu(sb, cg->cg_nextfreeoff));
199 printk(" clustersumoff %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff)); 194 printk(" clustersumoff %u\n",
200 printk(" clusteroff %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff)); 195 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clustersumoff));
201 printk(" nclusterblks %u\n", fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks)); 196 printk(" clusteroff %u\n",
197 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_clusteroff));
198 printk(" nclusterblks %u\n",
199 fs32_to_cpu(sb, cg->cg_u.cg_44.cg_nclusterblks));
202 printk("\n"); 200 printk("\n");
203} 201}
202#else
203# define ufs_print_super_stuff(sb, flags, usb1, usb2, usb3) /**/
204# define ufs_print_cylinder_stuff(sb, cg) /**/
204#endif /* CONFIG_UFS_DEBUG */ 205#endif /* CONFIG_UFS_DEBUG */
205 206
206static struct super_operations ufs_super_ops; 207static struct super_operations ufs_super_ops;
@@ -384,9 +385,9 @@ static int ufs_parse_options (char * options, unsigned * mount_options)
384 */ 385 */
385static int ufs_read_cylinder_structures (struct super_block *sb) 386static int ufs_read_cylinder_structures (struct super_block *sb)
386{ 387{
387 struct ufs_sb_info * sbi = UFS_SB(sb); 388 struct ufs_sb_info *sbi = UFS_SB(sb);
388 struct ufs_sb_private_info * uspi; 389 struct ufs_sb_private_info *uspi = sbi->s_uspi;
389 struct ufs_super_block *usb; 390 struct ufs_super_block_third *usb3;
390 struct ufs_buffer_head * ubh; 391 struct ufs_buffer_head * ubh;
391 unsigned char * base, * space; 392 unsigned char * base, * space;
392 unsigned size, blks, i; 393 unsigned size, blks, i;
@@ -394,10 +395,7 @@ static int ufs_read_cylinder_structures (struct super_block *sb)
394 395
395 UFSD("ENTER\n"); 396 UFSD("ENTER\n");
396 397
397 uspi = sbi->s_uspi; 398 usb3 = ubh_get_usb_third(uspi);
398
399 usb = (struct ufs_super_block *)
400 ((struct ufs_buffer_head *)uspi)->bh[0]->b_data;
401 399
402 flags = UFS_SB(sb)->s_flags; 400 flags = UFS_SB(sb)->s_flags;
403 401
@@ -418,7 +416,7 @@ static int ufs_read_cylinder_structures (struct super_block *sb)
418 416
419 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 417 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
420 ubh = ubh_bread(sb, 418 ubh = ubh_bread(sb,
421 fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_csaddr) + i, size); 419 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_csaddr) + i, size);
422 else 420 else
423 ubh = ubh_bread(sb, uspi->s_csaddr + i, size); 421 ubh = ubh_bread(sb, uspi->s_csaddr + i, size);
424 422
@@ -450,9 +448,8 @@ static int ufs_read_cylinder_structures (struct super_block *sb)
450 goto failed; 448 goto failed;
451 if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data)) 449 if (!ufs_cg_chkmagic (sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data))
452 goto failed; 450 goto failed;
453#ifdef CONFIG_UFS_DEBUG 451
454 ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data); 452 ufs_print_cylinder_stuff(sb, (struct ufs_cylinder_group *) sbi->s_ucg[i]->b_data);
455#endif
456 } 453 }
457 for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) { 454 for (i = 0; i < UFS_MAX_GROUP_LOADED; i++) {
458 if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL))) 455 if (!(sbi->s_ucpi[i] = kmalloc (sizeof(struct ufs_cg_private_info), GFP_KERNEL)))
@@ -818,12 +815,8 @@ magic_found:
818 goto again; 815 goto again;
819 } 816 }
820 817
821#ifdef CONFIG_UFS_DEBUG 818
822 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) 819 ufs_print_super_stuff(sb, flags, usb1, usb2, usb3);
823 ufs2_print_super_stuff(sb,usb);
824 else
825 ufs_print_super_stuff(sb, usb1, usb2, usb3);
826#endif
827 820
828 /* 821 /*
829 * Check, if file system was correctly unmounted. 822 * Check, if file system was correctly unmounted.
@@ -878,10 +871,9 @@ magic_found:
878 uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask); 871 uspi->s_cgmask = fs32_to_cpu(sb, usb1->fs_cgmask);
879 872
880 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 873 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
881 uspi->s_u2_size = fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_size); 874 uspi->s_u2_size = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_size);
882 uspi->s_u2_dsize = fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_dsize); 875 uspi->s_u2_dsize = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize);
883 } 876 } else {
884 else {
885 uspi->s_size = fs32_to_cpu(sb, usb1->fs_size); 877 uspi->s_size = fs32_to_cpu(sb, usb1->fs_size);
886 uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize); 878 uspi->s_dsize = fs32_to_cpu(sb, usb1->fs_dsize);
887 } 879 }
@@ -916,8 +908,8 @@ magic_found:
916 uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc); 908 uspi->s_spc = fs32_to_cpu(sb, usb1->fs_spc);
917 uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg); 909 uspi->s_ipg = fs32_to_cpu(sb, usb1->fs_ipg);
918 uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg); 910 uspi->s_fpg = fs32_to_cpu(sb, usb1->fs_fpg);
919 uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_cpc); 911 uspi->s_cpc = fs32_to_cpu(sb, usb2->fs_un.fs_u1.fs_cpc);
920 uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_contigsumsize); 912 uspi->s_contigsumsize = fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_contigsumsize);
921 uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3); 913 uspi->s_qbmask = ufs_get_fs_qbmask(sb, usb3);
922 uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3); 914 uspi->s_qfmask = ufs_get_fs_qfmask(sb, usb3);
923 uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat); 915 uspi->s_postblformat = fs32_to_cpu(sb, usb3->fs_postblformat);
@@ -949,7 +941,7 @@ magic_found:
949 if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) == 941 if ((sbi->s_mount_opt & UFS_MOUNT_UFSTYPE) ==
950 UFS_MOUNT_UFSTYPE_44BSD) 942 UFS_MOUNT_UFSTYPE_44BSD)
951 uspi->s_maxsymlinklen = 943 uspi->s_maxsymlinklen =
952 fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_maxsymlinklen); 944 fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_maxsymlinklen);
953 945
954 sbi->s_flags = flags; 946 sbi->s_flags = flags;
955 947
@@ -987,7 +979,8 @@ failed_nomem:
987 return -ENOMEM; 979 return -ENOMEM;
988} 980}
989 981
990static void ufs_write_super (struct super_block *sb) { 982static void ufs_write_super(struct super_block *sb)
983{
991 struct ufs_sb_private_info * uspi; 984 struct ufs_sb_private_info * uspi;
992 struct ufs_super_block_first * usb1; 985 struct ufs_super_block_first * usb1;
993 struct ufs_super_block_third * usb3; 986 struct ufs_super_block_third * usb3;
@@ -1027,7 +1020,7 @@ static void ufs_put_super(struct super_block *sb)
1027 kfree (sbi->s_uspi); 1020 kfree (sbi->s_uspi);
1028 kfree (sbi); 1021 kfree (sbi);
1029 sb->s_fs_info = NULL; 1022 sb->s_fs_info = NULL;
1030UFSD("EXIT\n"); 1023 UFSD("EXIT\n");
1031 return; 1024 return;
1032} 1025}
1033 1026
@@ -1107,31 +1100,29 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
1107 return 0; 1100 return 0;
1108} 1101}
1109 1102
1110static int ufs_statfs (struct dentry *dentry, struct kstatfs *buf) 1103static int ufs_statfs(struct dentry *dentry, struct kstatfs *buf)
1111{ 1104{
1112 struct super_block *sb = dentry->d_sb; 1105 struct super_block *sb = dentry->d_sb;
1113 struct ufs_sb_private_info * uspi; 1106 struct ufs_sb_private_info *uspi= UFS_SB(sb)->s_uspi;
1114 struct ufs_super_block_first * usb1; 1107 unsigned flags = UFS_SB(sb)->s_flags;
1115 struct ufs_super_block * usb; 1108 struct ufs_super_block_first *usb1;
1116 unsigned flags = 0; 1109 struct ufs_super_block_second *usb2;
1110 struct ufs_super_block_third *usb3;
1117 1111
1118 lock_kernel(); 1112 lock_kernel();
1119 1113
1120 uspi = UFS_SB(sb)->s_uspi; 1114 usb1 = ubh_get_usb_first(uspi);
1121 usb1 = ubh_get_usb_first (uspi); 1115 usb2 = ubh_get_usb_second(uspi);
1122 usb = (struct ufs_super_block *) 1116 usb3 = ubh_get_usb_third(uspi);
1123 ((struct ufs_buffer_head *)uspi)->bh[0]->b_data ;
1124 1117
1125 flags = UFS_SB(sb)->s_flags;
1126 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) { 1118 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
1127 buf->f_type = UFS2_MAGIC; 1119 buf->f_type = UFS2_MAGIC;
1128 buf->f_blocks = fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_dsize); 1120 buf->f_blocks = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.fs_dsize);
1129 buf->f_bfree = ufs_blkstofrags(fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_cstotal.cs_nbfree)) + 1121 buf->f_bfree = ufs_blkstofrags(
1130 fs64_to_cpu(sb, usb->fs_u11.fs_u2.fs_cstotal.cs_nffree); 1122 fs64_to_cpu(sb, usb2->fs_un.fs_u2.cs_nbfree)) +
1131 buf->f_ffree = fs64_to_cpu(sb, 1123 fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nffree);
1132 usb->fs_u11.fs_u2.fs_cstotal.cs_nifree); 1124 buf->f_ffree = fs64_to_cpu(sb, usb3->fs_un1.fs_u2.cs_nifree);
1133 } 1125 } else {
1134 else {
1135 buf->f_type = UFS_MAGIC; 1126 buf->f_type = UFS_MAGIC;
1136 buf->f_blocks = uspi->s_dsize; 1127 buf->f_blocks = uspi->s_dsize;
1137 buf->f_bfree = ufs_blkstofrags(fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)) + 1128 buf->f_bfree = ufs_blkstofrags(fs32_to_cpu(sb, usb1->fs_cstotal.cs_nbfree)) +
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index e95d1c46461f..eacd5e37b8e6 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -39,12 +39,12 @@ ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
39{ 39{
40 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 40 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
41 case UFS_ST_SUN: 41 case UFS_ST_SUN:
42 return fs32_to_cpu(sb, usb3->fs_u2.fs_sun.fs_state); 42 return fs32_to_cpu(sb, usb3->fs_un2.fs_sun.fs_state);
43 case UFS_ST_SUNx86: 43 case UFS_ST_SUNx86:
44 return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state); 44 return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state);
45 case UFS_ST_44BSD: 45 case UFS_ST_44BSD:
46 default: 46 default:
47 return fs32_to_cpu(sb, usb3->fs_u2.fs_44.fs_state); 47 return fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_state);
48 } 48 }
49} 49}
50 50
@@ -54,13 +54,13 @@ ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
54{ 54{
55 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 55 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
56 case UFS_ST_SUN: 56 case UFS_ST_SUN:
57 usb3->fs_u2.fs_sun.fs_state = cpu_to_fs32(sb, value); 57 usb3->fs_un2.fs_sun.fs_state = cpu_to_fs32(sb, value);
58 break; 58 break;
59 case UFS_ST_SUNx86: 59 case UFS_ST_SUNx86:
60 usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value); 60 usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value);
61 break; 61 break;
62 case UFS_ST_44BSD: 62 case UFS_ST_44BSD:
63 usb3->fs_u2.fs_44.fs_state = cpu_to_fs32(sb, value); 63 usb3->fs_un2.fs_44.fs_state = cpu_to_fs32(sb, value);
64 break; 64 break;
65 } 65 }
66} 66}
@@ -70,7 +70,7 @@ ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
70 struct ufs_super_block_third *usb3) 70 struct ufs_super_block_third *usb3)
71{ 71{
72 if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86) 72 if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
73 return fs32_to_cpu(sb, usb3->fs_u2.fs_sunx86.fs_npsect); 73 return fs32_to_cpu(sb, usb3->fs_un2.fs_sunx86.fs_npsect);
74 else 74 else
75 return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect); 75 return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect);
76} 76}
@@ -82,16 +82,16 @@ ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
82 82
83 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 83 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
84 case UFS_ST_SUN: 84 case UFS_ST_SUN:
85 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qbmask[0]; 85 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qbmask[0];
86 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qbmask[1]; 86 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qbmask[1];
87 break; 87 break;
88 case UFS_ST_SUNx86: 88 case UFS_ST_SUNx86:
89 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qbmask[0]; 89 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qbmask[0];
90 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qbmask[1]; 90 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qbmask[1];
91 break; 91 break;
92 case UFS_ST_44BSD: 92 case UFS_ST_44BSD:
93 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qbmask[0]; 93 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qbmask[0];
94 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qbmask[1]; 94 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qbmask[1];
95 break; 95 break;
96 } 96 }
97 97
@@ -105,16 +105,16 @@ ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
105 105
106 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 106 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
107 case UFS_ST_SUN: 107 case UFS_ST_SUN:
108 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qfmask[0]; 108 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qfmask[0];
109 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qfmask[1]; 109 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qfmask[1];
110 break; 110 break;
111 case UFS_ST_SUNx86: 111 case UFS_ST_SUNx86:
112 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qfmask[0]; 112 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qfmask[0];
113 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qfmask[1]; 113 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qfmask[1];
114 break; 114 break;
115 case UFS_ST_44BSD: 115 case UFS_ST_44BSD:
116 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qfmask[0]; 116 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qfmask[0];
117 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qfmask[1]; 117 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qfmask[1];
118 break; 118 break;
119 } 119 }
120 120
@@ -302,24 +302,6 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
302#define ubh_blkmap(ubh,begin,bit) \ 302#define ubh_blkmap(ubh,begin,bit) \
303 ((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb))) 303 ((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
304 304
305
306/*
307 * Macros for access to superblock array structures
308 */
309#define ubh_postbl(ubh,cylno,i) \
310 ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
311 ? (*(__s16*)(ubh_get_addr(ubh, \
312 (unsigned)(&((struct ufs_super_block *)0)->fs_opostbl) \
313 + (((cylno) * 16 + (i)) << 1) ) )) \
314 : (*(__s16*)(ubh_get_addr(ubh, \
315 uspi->s_postbloff + (((cylno) * uspi->s_nrpos + (i)) << 1) ))))
316
317#define ubh_rotbl(ubh,i) \
318 ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
319 ? (*(__u8*)(ubh_get_addr(ubh, \
320 (unsigned)(&((struct ufs_super_block *)0)->fs_space) + (i)))) \
321 : (*(__u8*)(ubh_get_addr(ubh, uspi->s_rotbloff + (i)))))
322
323/* 305/*
324 * Determine the number of available frags given a 306 * Determine the number of available frags given a
325 * percentage to hold in reserve. 307 * percentage to hold in reserve.
diff --git a/include/linux/ufs_fs.h b/include/linux/ufs_fs.h
index 28b31591f688..87b0a658bec8 100644
--- a/include/linux/ufs_fs.h
+++ b/include/linux/ufs_fs.h
@@ -351,8 +351,12 @@ struct ufs2_csum_total {
351 __fs64 cs_spare[3]; /* future expansion */ 351 __fs64 cs_spare[3]; /* future expansion */
352}; 352};
353 353
354#if 0
354/* 355/*
355 * This is the actual superblock, as it is laid out on the disk. 356 * This is the actual superblock, as it is laid out on the disk.
357 * Do NOT use this structure, because of sizeof(ufs_super_block) > 512 and
358 * it may occupy several blocks, use
359 * struct ufs_super_block_(first,second,third) instead.
356 */ 360 */
357struct ufs_super_block { 361struct ufs_super_block {
358 __fs32 fs_link; /* UNUSED */ 362 __fs32 fs_link; /* UNUSED */
@@ -498,6 +502,7 @@ struct ufs_super_block {
498 __fs32 fs_magic; /* magic number */ 502 __fs32 fs_magic; /* magic number */
499 __u8 fs_space[1]; /* list of blocks for each rotation */ 503 __u8 fs_space[1]; /* list of blocks for each rotation */
500}; 504};
505#endif/*struct ufs_super_block*/
501 506
502/* 507/*
503 * Preference for optimization. 508 * Preference for optimization.
@@ -837,16 +842,54 @@ struct ufs_super_block_first {
837}; 842};
838 843
839struct ufs_super_block_second { 844struct ufs_super_block_second {
840 __s8 fs_fsmnt[212]; 845 union {
841 __fs32 fs_cgrotor; 846 struct {
842 __fs32 fs_csp[UFS_MAXCSBUFS]; 847 __s8 fs_fsmnt[212];
843 __fs32 fs_maxcluster; 848 __fs32 fs_cgrotor;
844 __fs32 fs_cpc; 849 __fs32 fs_csp[UFS_MAXCSBUFS];
845 __fs16 fs_opostbl[82]; 850 __fs32 fs_maxcluster;
846}; 851 __fs32 fs_cpc;
852 __fs16 fs_opostbl[82];
853 } fs_u1;
854 struct {
855 __s8 fs_fsmnt[UFS2_MAXMNTLEN - UFS_MAXMNTLEN + 212];
856 __u8 fs_volname[UFS2_MAXVOLLEN];
857 __fs64 fs_swuid;
858 __fs32 fs_pad;
859 __fs32 fs_cgrotor;
860 __fs32 fs_ocsp[UFS2_NOCSPTRS];
861 __fs32 fs_contigdirs;
862 __fs32 fs_csp;
863 __fs32 fs_maxcluster;
864 __fs32 fs_active;
865 __fs32 fs_old_cpc;
866 __fs32 fs_maxbsize;
867 __fs64 fs_sparecon64[17];
868 __fs64 fs_sblockloc;
869 __fs64 cs_ndir;
870 __fs64 cs_nbfree;
871 } fs_u2;
872 } fs_un;
873};
847 874
848struct ufs_super_block_third { 875struct ufs_super_block_third {
849 __fs16 fs_opostbl[46]; 876 union {
877 struct {
878 __fs16 fs_opostbl[46];
879 } fs_u1;
880 struct {
881 __fs64 cs_nifree; /* number of free inodes */
882 __fs64 cs_nffree; /* number of free frags */
883 __fs64 cs_numclusters; /* number of free clusters */
884 __fs64 cs_spare[3]; /* future expansion */
885 struct ufs_timeval fs_time; /* last time written */
886 __fs64 fs_size; /* number of blocks in fs */
887 __fs64 fs_dsize; /* number of data blocks in fs */
888 __fs64 fs_csaddr; /* blk addr of cyl grp summary area */
889 __fs64 fs_pendingblocks;/* blocks in process of being freed */
890 __fs32 fs_pendinginodes;/*inodes in process of being freed */
891 } fs_u2;
892 } fs_un1;
850 union { 893 union {
851 struct { 894 struct {
852 __fs32 fs_sparecon[53];/* reserved for future constants */ 895 __fs32 fs_sparecon[53];/* reserved for future constants */
@@ -874,7 +917,7 @@ struct ufs_super_block_third {
874 __fs32 fs_qfmask[2]; /* ~usb_fmask */ 917 __fs32 fs_qfmask[2]; /* ~usb_fmask */
875 __fs32 fs_state; /* file system state time stamp */ 918 __fs32 fs_state; /* file system state time stamp */
876 } fs_44; 919 } fs_44;
877 } fs_u2; 920 } fs_un2;
878 __fs32 fs_postblformat; 921 __fs32 fs_postblformat;
879 __fs32 fs_nrpos; 922 __fs32 fs_nrpos;
880 __fs32 fs_postbloff; 923 __fs32 fs_postbloff;
generated by cgit v1.2.2 (git 2.25.0) at 2024-09-22 18:31:38 -0400