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-rw-r--r--fs/ufs/util.h107
1 files changed, 36 insertions, 71 deletions
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 48d6d9bcc157..406981fff5e7 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -17,10 +17,16 @@
17#define in_range(b,first,len) ((b)>=(first)&&(b)<(first)+(len)) 17#define in_range(b,first,len) ((b)>=(first)&&(b)<(first)+(len))
18 18
19/* 19/*
20 * macros used for retyping 20 * functions used for retyping
21 */ 21 */
22#define UCPI_UBH ((struct ufs_buffer_head *)ucpi) 22static inline struct ufs_buffer_head *UCPI_UBH(struct ufs_cg_private_info *cpi)
23#define USPI_UBH ((struct ufs_buffer_head *)uspi) 23{
24 return &cpi->c_ubh;
25}
26static inline struct ufs_buffer_head *USPI_UBH(struct ufs_sb_private_info *spi)
27{
28 return &spi->s_ubh;
29}
24 30
25 31
26 32
@@ -33,12 +39,12 @@ ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
33{ 39{
34 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 40 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
35 case UFS_ST_SUN: 41 case UFS_ST_SUN:
36 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);
37 case UFS_ST_SUNx86: 43 case UFS_ST_SUNx86:
38 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);
39 case UFS_ST_44BSD: 45 case UFS_ST_44BSD:
40 default: 46 default:
41 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);
42 } 48 }
43} 49}
44 50
@@ -48,13 +54,13 @@ ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
48{ 54{
49 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 55 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
50 case UFS_ST_SUN: 56 case UFS_ST_SUN:
51 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);
52 break; 58 break;
53 case UFS_ST_SUNx86: 59 case UFS_ST_SUNx86:
54 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);
55 break; 61 break;
56 case UFS_ST_44BSD: 62 case UFS_ST_44BSD:
57 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);
58 break; 64 break;
59 } 65 }
60} 66}
@@ -64,7 +70,7 @@ ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
64 struct ufs_super_block_third *usb3) 70 struct ufs_super_block_third *usb3)
65{ 71{
66 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)
67 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);
68 else 74 else
69 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);
70} 76}
@@ -76,16 +82,16 @@ ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
76 82
77 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 83 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
78 case UFS_ST_SUN: 84 case UFS_ST_SUN:
79 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qbmask[0]; 85 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qbmask[0];
80 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qbmask[1]; 86 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qbmask[1];
81 break; 87 break;
82 case UFS_ST_SUNx86: 88 case UFS_ST_SUNx86:
83 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qbmask[0]; 89 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qbmask[0];
84 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qbmask[1]; 90 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qbmask[1];
85 break; 91 break;
86 case UFS_ST_44BSD: 92 case UFS_ST_44BSD:
87 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qbmask[0]; 93 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qbmask[0];
88 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qbmask[1]; 94 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qbmask[1];
89 break; 95 break;
90 } 96 }
91 97
@@ -99,16 +105,16 @@ ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
99 105
100 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) { 106 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
101 case UFS_ST_SUN: 107 case UFS_ST_SUN:
102 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sun.fs_qfmask[0]; 108 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qfmask[0];
103 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sun.fs_qfmask[1]; 109 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qfmask[1];
104 break; 110 break;
105 case UFS_ST_SUNx86: 111 case UFS_ST_SUNx86:
106 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_sunx86.fs_qfmask[0]; 112 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qfmask[0];
107 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_sunx86.fs_qfmask[1]; 113 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qfmask[1];
108 break; 114 break;
109 case UFS_ST_44BSD: 115 case UFS_ST_44BSD:
110 ((__fs32 *)&tmp)[0] = usb3->fs_u2.fs_44.fs_qfmask[0]; 116 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qfmask[0];
111 ((__fs32 *)&tmp)[1] = usb3->fs_u2.fs_44.fs_qfmask[1]; 117 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qfmask[1];
112 break; 118 break;
113 } 119 }
114 120
@@ -236,9 +242,8 @@ extern void ubh_brelse (struct ufs_buffer_head *);
236extern void ubh_brelse_uspi (struct ufs_sb_private_info *); 242extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
237extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *); 243extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
238extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int); 244extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
239extern void ubh_ll_rw_block (int, unsigned, struct ufs_buffer_head **); 245extern void ubh_ll_rw_block(int, struct ufs_buffer_head *);
240extern void ubh_wait_on_buffer (struct ufs_buffer_head *); 246extern void ubh_wait_on_buffer (struct ufs_buffer_head *);
241extern unsigned ubh_max_bcount (struct ufs_buffer_head *);
242extern void ubh_bforget (struct ufs_buffer_head *); 247extern void ubh_bforget (struct ufs_buffer_head *);
243extern int ubh_buffer_dirty (struct ufs_buffer_head *); 248extern int ubh_buffer_dirty (struct ufs_buffer_head *);
244#define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size) 249#define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
@@ -297,40 +302,26 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
297#define ubh_blkmap(ubh,begin,bit) \ 302#define ubh_blkmap(ubh,begin,bit) \
298 ((*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)))
299 304
300
301/*
302 * Macros for access to superblock array structures
303 */
304#define ubh_postbl(ubh,cylno,i) \
305 ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
306 ? (*(__s16*)(ubh_get_addr(ubh, \
307 (unsigned)(&((struct ufs_super_block *)0)->fs_opostbl) \
308 + (((cylno) * 16 + (i)) << 1) ) )) \
309 : (*(__s16*)(ubh_get_addr(ubh, \
310 uspi->s_postbloff + (((cylno) * uspi->s_nrpos + (i)) << 1) ))))
311
312#define ubh_rotbl(ubh,i) \
313 ((uspi->s_postblformat != UFS_DYNAMICPOSTBLFMT) \
314 ? (*(__u8*)(ubh_get_addr(ubh, \
315 (unsigned)(&((struct ufs_super_block *)0)->fs_space) + (i)))) \
316 : (*(__u8*)(ubh_get_addr(ubh, uspi->s_rotbloff + (i)))))
317
318/* 305/*
319 * Determine the number of available frags given a 306 * Determine the number of available frags given a
320 * percentage to hold in reserve. 307 * percentage to hold in reserve.
321 */ 308 */
322#define ufs_freespace(usb, percentreserved) \ 309static inline u64
323 (ufs_blkstofrags(fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nbfree)) + \ 310ufs_freespace(struct ufs_sb_private_info *uspi, int percentreserved)
324 fs32_to_cpu(sb, (usb)->fs_cstotal.cs_nffree) - (uspi->s_dsize * (percentreserved) / 100)) 311{
312 return ufs_blkstofrags(uspi->cs_total.cs_nbfree) +
313 uspi->cs_total.cs_nffree -
314 (uspi->s_dsize * (percentreserved) / 100);
315}
325 316
326/* 317/*
327 * Macros to access cylinder group array structures 318 * Macros to access cylinder group array structures
328 */ 319 */
329#define ubh_cg_blktot(ucpi,cylno) \ 320#define ubh_cg_blktot(ucpi,cylno) \
330 (*((__fs32*)ubh_get_addr(UCPI_UBH, (ucpi)->c_btotoff + ((cylno) << 2)))) 321 (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi), (ucpi)->c_btotoff + ((cylno) << 2))))
331 322
332#define ubh_cg_blks(ucpi,cylno,rpos) \ 323#define ubh_cg_blks(ucpi,cylno,rpos) \
333 (*((__fs16*)ubh_get_addr(UCPI_UBH, \ 324 (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi), \
334 (ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 )))) 325 (ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
335 326
336/* 327/*
@@ -508,29 +499,3 @@ static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
508 if (fragsize > 0 && fragsize < uspi->s_fpb) 499 if (fragsize > 0 && fragsize < uspi->s_fpb)
509 fs32_add(sb, &fraglist[fragsize], cnt); 500 fs32_add(sb, &fraglist[fragsize], cnt);
510} 501}
511
512#define ubh_scanc(ubh,begin,size,table,mask) _ubh_scanc_(uspi,ubh,begin,size,table,mask)
513static inline unsigned _ubh_scanc_(struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
514 unsigned begin, unsigned size, unsigned char * table, unsigned char mask)
515{
516 unsigned rest, offset;
517 unsigned char * cp;
518
519
520 offset = begin & ~uspi->s_fmask;
521 begin >>= uspi->s_fshift;
522 for (;;) {
523 if ((offset + size) < uspi->s_fsize)
524 rest = size;
525 else
526 rest = uspi->s_fsize - offset;
527 size -= rest;
528 cp = ubh->bh[begin]->b_data + offset;
529 while ((table[*cp++] & mask) == 0 && --rest);
530 if (rest || !size)
531 break;
532 begin++;
533 offset = 0;
534 }
535 return (size + rest);
536}