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[PATCH] rock: lindent it

Browse Source 
Trying to turn rock.c into something which humans can read so we can fix some
bugs.

Start out by feeding it through scripts/Lindent.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2005-06-21 17:16:42 -07:00 committed by Linus Torvalds
parent 8a96619145
commit 1d37211638
1 changed files with 350 additions and 285 deletions
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635
fs/isofs/rock.c
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@ -20,8 +20,7 @@
* returns a symbolic link name, and a fourth one returns the extent number * returns a symbolic link name, and a fourth one returns the extent number
* for the file. */ * for the file. */
#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */ #define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */
/* This is a way of ensuring that we have something in the system /* This is a way of ensuring that we have something in the system
use fields that is compatible with Rock Ridge */ use fields that is compatible with Rock Ridge */
@ -54,7 +53,7 @@
CHR+=ISOFS_SB(inode->i_sb)->s_rock_offset; \ CHR+=ISOFS_SB(inode->i_sb)->s_rock_offset; \
if (LEN<0) LEN=0; \ if (LEN<0) LEN=0; \
} \ } \
} }
#define MAYBE_CONTINUE(LABEL,DEV) \ #define MAYBE_CONTINUE(LABEL,DEV) \
{if (buffer) { kfree(buffer); buffer = NULL; } \ {if (buffer) { kfree(buffer); buffer = NULL; } \
@ -85,280 +84,348 @@
}} }}
/* return length of name field; 0: not found, -1: to be ignored */ /* return length of name field; 0: not found, -1: to be ignored */
int get_rock_ridge_filename(struct iso_directory_record * de, int get_rock_ridge_filename(struct iso_directory_record *de,
char * retname, struct inode * inode) char *retname, struct inode *inode)
{ {
int len; int len;
unsigned char * chr; unsigned char *chr;
CONTINUE_DECLS; CONTINUE_DECLS;
int retnamlen = 0, truncate=0; int retnamlen = 0, truncate = 0;
if (!ISOFS_SB(inode->i_sb)->s_rock) return 0;
*retname = 0;
SETUP_ROCK_RIDGE(de, chr, len); if (!ISOFS_SB(inode->i_sb)->s_rock)
repeat: return 0;
{ *retname = 0;
struct rock_ridge * rr;
int sig;
while (len > 2){ /* There may be one byte for padding somewhere */
rr = (struct rock_ridge *) chr;
if (rr->len < 3) goto out; /* Something got screwed up here */
sig = isonum_721(chr);
chr += rr->len;
len -= rr->len;
if (len < 0) goto out; /* corrupted isofs */
switch(sig){ SETUP_ROCK_RIDGE(de, chr, len);
case SIG('R','R'): repeat:
if((rr->u.RR.flags[0] & RR_NM) == 0) goto out; {
break; struct rock_ridge *rr;
case SIG('S','P'): int sig;
CHECK_SP(goto out);
break;
case SIG('C','E'):
CHECK_CE;
break;
case SIG('N','M'):
if (truncate) break;
if (rr->len < 5) break;
/*
* If the flags are 2 or 4, this indicates '.' or '..'.
* We don't want to do anything with this, because it
* screws up the code that calls us. We don't really
* care anyways, since we can just use the non-RR
* name.
*/
if (rr->u.NM.flags & 6) {
break;
}
if (rr->u.NM.flags & ~1) { while (len > 2) { /* There may be one byte for padding somewhere */
printk("Unsupported NM flag settings (%d)\n",rr->u.NM.flags); rr = (struct rock_ridge *)chr;
break; if (rr->len < 3)
goto out; /* Something got screwed up here */
sig = isonum_721(chr);
chr += rr->len;
len -= rr->len;
if (len < 0)
goto out; /* corrupted isofs */
switch (sig) {
case SIG('R', 'R'):
if ((rr->u.RR.flags[0] & RR_NM) == 0)
goto out;
break;
case SIG('S', 'P'):
CHECK_SP(goto out);
break;
case SIG('C', 'E'):
CHECK_CE;
break;
case SIG('N', 'M'):
if (truncate)
break;
if (rr->len < 5)
break;
/*
* If the flags are 2 or 4, this indicates '.' or '..'.
* We don't want to do anything with this, because it
* screws up the code that calls us. We don't really
* care anyways, since we can just use the non-RR
* name.
*/
if (rr->u.NM.flags & 6) {
break;
}
if (rr->u.NM.flags & ~1) {
printk
("Unsupported NM flag settings (%d)\n",
rr->u.NM.flags);
break;
}
if ((strlen(retname) + rr->len - 5) >= 254) {
truncate = 1;
break;
}
strncat(retname, rr->u.NM.name, rr->len - 5);
retnamlen += rr->len - 5;
break;
case SIG('R', 'E'):
if (buffer)
kfree(buffer);
return -1;
default:
break;
}
}
} }
if((strlen(retname) + rr->len - 5) >= 254) { MAYBE_CONTINUE(repeat, inode);
truncate = 1; if (buffer)
break; kfree(buffer);
} return retnamlen; /* If 0, this file did not have a NM field */
strncat(retname, rr->u.NM.name, rr->len - 5); out:
retnamlen += rr->len - 5; if (buffer)
break; kfree(buffer);
case SIG('R','E'): return 0;
if (buffer) kfree(buffer);
return -1;
default:
break;
}
}
}
MAYBE_CONTINUE(repeat,inode);
if (buffer) kfree(buffer);
return retnamlen; /* If 0, this file did not have a NM field */
out:
if(buffer) kfree(buffer);
return 0;
} }
static int static int
parse_rock_ridge_inode_internal(struct iso_directory_record *de, parse_rock_ridge_inode_internal(struct iso_directory_record *de,
struct inode *inode, int regard_xa) struct inode *inode, int regard_xa)
{ {
int len; int len;
unsigned char * chr; unsigned char *chr;
int symlink_len = 0; int symlink_len = 0;
CONTINUE_DECLS; CONTINUE_DECLS;
if (!ISOFS_SB(inode->i_sb)->s_rock) return 0; if (!ISOFS_SB(inode->i_sb)->s_rock)
return 0;
SETUP_ROCK_RIDGE(de, chr, len); SETUP_ROCK_RIDGE(de, chr, len);
if (regard_xa) if (regard_xa) {
{ chr += 14;
chr+=14; len -= 14;
len-=14; if (len < 0)
if (len<0) len=0; len = 0;
} }
repeat: repeat:
{ {
int cnt, sig; int cnt, sig;
struct inode * reloc; struct inode *reloc;
struct rock_ridge * rr; struct rock_ridge *rr;
int rootflag; int rootflag;
while (len > 2){ /* There may be one byte for padding somewhere */ while (len > 2) { /* There may be one byte for padding somewhere */
rr = (struct rock_ridge *) chr; rr = (struct rock_ridge *)chr;
if (rr->len < 3) goto out; /* Something got screwed up here */ if (rr->len < 3)
sig = isonum_721(chr); goto out; /* Something got screwed up here */
chr += rr->len; sig = isonum_721(chr);
len -= rr->len; chr += rr->len;
if (len < 0) goto out; /* corrupted isofs */ len -= rr->len;
if (len < 0)
switch(sig){ goto out; /* corrupted isofs */
switch (sig) {
#ifndef CONFIG_ZISOFS /* No flag for SF or ZF */ #ifndef CONFIG_ZISOFS /* No flag for SF or ZF */
case SIG('R','R'): case SIG('R', 'R'):
if((rr->u.RR.flags[0] & if ((rr->u.RR.flags[0] &
(RR_PX | RR_TF | RR_SL | RR_CL)) == 0) goto out; (RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
break; goto out;
break;
#endif #endif
case SIG('S','P'): case SIG('S', 'P'):
CHECK_SP(goto out); CHECK_SP(goto out);
break; break;
case SIG('C','E'): case SIG('C', 'E'):
CHECK_CE; CHECK_CE;
break; break;
case SIG('E','R'): case SIG('E', 'R'):
ISOFS_SB(inode->i_sb)->s_rock = 1; ISOFS_SB(inode->i_sb)->s_rock = 1;
printk(KERN_DEBUG "ISO 9660 Extensions: "); printk(KERN_DEBUG "ISO 9660 Extensions: ");
{ int p; {
for(p=0;p<rr->u.ER.len_id;p++) printk("%c",rr->u.ER.data[p]); int p;
} for (p = 0; p < rr->u.ER.len_id; p++)
printk("\n"); printk("%c", rr->u.ER.data[p]);
break; }
case SIG('P','X'): printk("\n");
inode->i_mode = isonum_733(rr->u.PX.mode); break;
inode->i_nlink = isonum_733(rr->u.PX.n_links); case SIG('P', 'X'):
inode->i_uid = isonum_733(rr->u.PX.uid); inode->i_mode = isonum_733(rr->u.PX.mode);
inode->i_gid = isonum_733(rr->u.PX.gid); inode->i_nlink = isonum_733(rr->u.PX.n_links);
break; inode->i_uid = isonum_733(rr->u.PX.uid);
case SIG('P','N'): inode->i_gid = isonum_733(rr->u.PX.gid);
{ int high, low; break;
high = isonum_733(rr->u.PN.dev_high); case SIG('P', 'N'):
low = isonum_733(rr->u.PN.dev_low); {
/* int high, low;
* The Rock Ridge standard specifies that if sizeof(dev_t) <= 4, high = isonum_733(rr->u.PN.dev_high);
* then the high field is unused, and the device number is completely low = isonum_733(rr->u.PN.dev_low);
* stored in the low field. Some writers may ignore this subtlety, /*
* and as a result we test to see if the entire device number is * The Rock Ridge standard specifies that if sizeof(dev_t) <= 4,
* stored in the low field, and use that. * then the high field is unused, and the device number is completely
*/ * stored in the low field. Some writers may ignore this subtlety,
if((low & ~0xff) && high == 0) { * and as a result we test to see if the entire device number is
inode->i_rdev = MKDEV(low >> 8, low & 0xff); * stored in the low field, and use that.
} else { */
inode->i_rdev = MKDEV(high, low); if ((low & ~0xff) && high == 0) {
} inode->i_rdev =
} MKDEV(low >> 8, low & 0xff);
break; } else {
case SIG('T','F'): inode->i_rdev =
/* Some RRIP writers incorrectly place ctime in the TF_CREATE field. MKDEV(high, low);
Try to handle this correctly for either case. */ }
cnt = 0; /* Rock ridge never appears on a High Sierra disk */ }
if(rr->u.TF.flags & TF_CREATE) { break;
inode->i_ctime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0); case SIG('T', 'F'):
inode->i_ctime.tv_nsec = 0; /* Some RRIP writers incorrectly place ctime in the TF_CREATE field.
} Try to handle this correctly for either case. */
if(rr->u.TF.flags & TF_MODIFY) { cnt = 0; /* Rock ridge never appears on a High Sierra disk */
inode->i_mtime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0); if (rr->u.TF.flags & TF_CREATE) {
inode->i_mtime.tv_nsec = 0; inode->i_ctime.tv_sec =
} iso_date(rr->u.TF.times[cnt++].time,
if(rr->u.TF.flags & TF_ACCESS) { 0);
inode->i_atime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0); inode->i_ctime.tv_nsec = 0;
inode->i_atime.tv_nsec = 0; }
} if (rr->u.TF.flags & TF_MODIFY) {
if(rr->u.TF.flags & TF_ATTRIBUTES) { inode->i_mtime.tv_sec =
inode->i_ctime.tv_sec = iso_date(rr->u.TF.times[cnt++].time, 0); iso_date(rr->u.TF.times[cnt++].time,
inode->i_ctime.tv_nsec = 0; 0);
} inode->i_mtime.tv_nsec = 0;
break; }
case SIG('S','L'): if (rr->u.TF.flags & TF_ACCESS) {
{int slen; inode->i_atime.tv_sec =
struct SL_component * slp; iso_date(rr->u.TF.times[cnt++].time,
struct SL_component * oldslp; 0);
slen = rr->len - 5; inode->i_atime.tv_nsec = 0;
slp = &rr->u.SL.link; }
inode->i_size = symlink_len; if (rr->u.TF.flags & TF_ATTRIBUTES) {
while (slen > 1){ inode->i_ctime.tv_sec =
rootflag = 0; iso_date(rr->u.TF.times[cnt++].time,
switch(slp->flags &~1){ 0);
case 0: inode->i_ctime.tv_nsec = 0;
inode->i_size += slp->len; }
break; break;
case 2: case SIG('S', 'L'):
inode->i_size += 1; {
break; int slen;
case 4: struct SL_component *slp;
inode->i_size += 2; struct SL_component *oldslp;
break; slen = rr->len - 5;
case 8: slp = &rr->u.SL.link;
rootflag = 1; inode->i_size = symlink_len;
inode->i_size += 1; while (slen > 1) {
break; rootflag = 0;
default: switch (slp->flags & ~1) {
printk("Symlink component flag not implemented\n"); case 0:
} inode->i_size +=
slen -= slp->len + 2; slp->len;
oldslp = slp; break;
slp = (struct SL_component *) (((char *) slp) + slp->len + 2); case 2:
inode->i_size += 1;
break;
case 4:
inode->i_size += 2;
break;
case 8:
rootflag = 1;
inode->i_size += 1;
break;
default:
printk
("Symlink component flag not implemented\n");
}
slen -= slp->len + 2;
oldslp = slp;
slp =
(struct SL_component
*)(((char *)slp) +
slp->len + 2);
if(slen < 2) { if (slen < 2) {
if( ((rr->u.SL.flags & 1) != 0) if (((rr->u.SL.
&& ((oldslp->flags & 1) == 0) ) inode->i_size += 1; flags & 1) != 0)
break; &&
} ((oldslp->
flags & 1) == 0))
inode->i_size +=
1;
break;
}
/* /*
* If this component record isn't continued, then append a '/'. * If this component record isn't continued, then append a '/'.
*/ */
if (!rootflag && (oldslp->flags & 1) == 0) if (!rootflag
inode->i_size += 1; && (oldslp->flags & 1) == 0)
} inode->i_size += 1;
} }
symlink_len = inode->i_size; }
break; symlink_len = inode->i_size;
case SIG('R','E'): break;
printk(KERN_WARNING "Attempt to read inode for relocated directory\n"); case SIG('R', 'E'):
goto out; printk(KERN_WARNING
case SIG('C','L'): "Attempt to read inode for relocated directory\n");
ISOFS_I(inode)->i_first_extent = isonum_733(rr->u.CL.location); goto out;
reloc = isofs_iget(inode->i_sb, ISOFS_I(inode)->i_first_extent, 0); case SIG('C', 'L'):
if (!reloc) ISOFS_I(inode)->i_first_extent =
goto out; isonum_733(rr->u.CL.location);
inode->i_mode = reloc->i_mode; reloc =
inode->i_nlink = reloc->i_nlink; isofs_iget(inode->i_sb,
inode->i_uid = reloc->i_uid; ISOFS_I(inode)->i_first_extent,
inode->i_gid = reloc->i_gid; 0);
inode->i_rdev = reloc->i_rdev; if (!reloc)
inode->i_size = reloc->i_size; goto out;
inode->i_blocks = reloc->i_blocks; inode->i_mode = reloc->i_mode;
inode->i_atime = reloc->i_atime; inode->i_nlink = reloc->i_nlink;
inode->i_ctime = reloc->i_ctime; inode->i_uid = reloc->i_uid;
inode->i_mtime = reloc->i_mtime; inode->i_gid = reloc->i_gid;
iput(reloc); inode->i_rdev = reloc->i_rdev;
break; inode->i_size = reloc->i_size;
inode->i_blocks = reloc->i_blocks;
inode->i_atime = reloc->i_atime;
inode->i_ctime = reloc->i_ctime;
inode->i_mtime = reloc->i_mtime;
iput(reloc);
break;
#ifdef CONFIG_ZISOFS #ifdef CONFIG_ZISOFS
case SIG('Z','F'): case SIG('Z', 'F'):
if ( !ISOFS_SB(inode->i_sb)->s_nocompress ) { if (!ISOFS_SB(inode->i_sb)->s_nocompress) {
int algo; int algo;
algo = isonum_721(rr->u.ZF.algorithm); algo = isonum_721(rr->u.ZF.algorithm);
if ( algo == SIG('p','z') ) { if (algo == SIG('p', 'z')) {
int block_shift = isonum_711(&rr->u.ZF.parms[1]); int block_shift =
if ( block_shift < PAGE_CACHE_SHIFT || block_shift > 17 ) { isonum_711(&rr->u.ZF.
printk(KERN_WARNING "isofs: Can't handle ZF block size of 2^%d\n", block_shift); parms[1]);
} else { if (block_shift <
/* Note: we don't change i_blocks here */ PAGE_CACHE_SHIFT
ISOFS_I(inode)->i_file_format = isofs_file_compressed; || block_shift > 17) {
/* Parameters to compression algorithm (header size, block size) */ printk(KERN_WARNING
ISOFS_I(inode)->i_format_parm[0] = isonum_711(&rr->u.ZF.parms[0]); "isofs: Can't handle ZF block size of 2^%d\n",
ISOFS_I(inode)->i_format_parm[1] = isonum_711(&rr->u.ZF.parms[1]); block_shift);
inode->i_size = isonum_733(rr->u.ZF.real_size); } else {
} /* Note: we don't change i_blocks here */
} else { ISOFS_I(inode)->
printk(KERN_WARNING "isofs: Unknown ZF compression algorithm: %c%c\n", i_file_format =
rr->u.ZF.algorithm[0], rr->u.ZF.algorithm[1]); isofs_file_compressed;
} /* Parameters to compression algorithm (header size, block size) */
} ISOFS_I(inode)->
break; i_format_parm[0] =
isonum_711(&rr->u.
ZF.
parms
[0]);
ISOFS_I(inode)->
i_format_parm[1] =
isonum_711(&rr->u.
ZF.
parms
[1]);
inode->i_size =
isonum_733(rr->u.ZF.
real_size);
}
} else {
printk(KERN_WARNING
"isofs: Unknown ZF compression algorithm: %c%c\n",
rr->u.ZF.algorithm[0],
rr->u.ZF.algorithm[1]);
}
}
break;
#endif #endif
default: default:
break; break;
} }
} }
} }
MAYBE_CONTINUE(repeat,inode); MAYBE_CONTINUE(repeat, inode);
out: out:
if(buffer) kfree(buffer); if (buffer)
return 0; kfree(buffer);
return 0;
} }
static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit) static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
@ -376,32 +443,32 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
if (slp->len > plimit - rpnt) if (slp->len > plimit - rpnt)
return NULL; return NULL;
memcpy(rpnt, slp->text, slp->len); memcpy(rpnt, slp->text, slp->len);
rpnt+=slp->len; rpnt += slp->len;
break; break;
case 2: case 2:
if (rpnt >= plimit) if (rpnt >= plimit)
return NULL; return NULL;
*rpnt++='.'; *rpnt++ = '.';
break; break;
case 4: case 4:
if (2 > plimit - rpnt) if (2 > plimit - rpnt)
return NULL; return NULL;
*rpnt++='.'; *rpnt++ = '.';
*rpnt++='.'; *rpnt++ = '.';
break; break;
case 8: case 8:
if (rpnt >= plimit) if (rpnt >= plimit)
return NULL; return NULL;
rootflag = 1; rootflag = 1;
*rpnt++='/'; *rpnt++ = '/';
break; break;
default: default:
printk("Symlink component flag not implemented (%d)\n", printk("Symlink component flag not implemented (%d)\n",
slp->flags); slp->flags);
} }
slen -= slp->len + 2; slen -= slp->len + 2;
oldslp = slp; oldslp = slp;
slp = (struct SL_component *) ((char *) slp + slp->len + 2); slp = (struct SL_component *)((char *)slp + slp->len + 2);
if (slen < 2) { if (slen < 2) {
/* /*
@ -412,7 +479,7 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
!(oldslp->flags & 1)) { !(oldslp->flags & 1)) {
if (rpnt >= plimit) if (rpnt >= plimit)
return NULL; return NULL;
*rpnt++='/'; *rpnt++ = '/';
} }
break; break;
} }
@ -423,24 +490,22 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
if (!rootflag && !(oldslp->flags & 1)) { if (!rootflag && !(oldslp->flags & 1)) {
if (rpnt >= plimit) if (rpnt >= plimit)
return NULL; return NULL;
*rpnt++='/'; *rpnt++ = '/';
} }
} }
return rpnt; return rpnt;
} }
int parse_rock_ridge_inode(struct iso_directory_record * de, int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
struct inode * inode)
{ {
int result=parse_rock_ridge_inode_internal(de,inode,0); int result = parse_rock_ridge_inode_internal(de, inode, 0);
/* if rockridge flag was reset and we didn't look for attributes /* if rockridge flag was reset and we didn't look for attributes
* behind eventual XA attributes, have a look there */ * behind eventual XA attributes, have a look there */
if ((ISOFS_SB(inode->i_sb)->s_rock_offset==-1) if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
&&(ISOFS_SB(inode->i_sb)->s_rock==2)) && (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
{ result = parse_rock_ridge_inode_internal(de, inode, 14);
result=parse_rock_ridge_inode_internal(de,inode,14); }
} return result;
return result;
} }
/* readpage() for symlinks: reads symlink contents into the page and either /* readpage() for symlinks: reads symlink contents into the page and either
@ -449,7 +514,7 @@ int parse_rock_ridge_inode(struct iso_directory_record * de,
static int rock_ridge_symlink_readpage(struct file *file, struct page *page) static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
{ {
struct inode *inode = page->mapping->host; struct inode *inode = page->mapping->host;
struct iso_inode_info *ei = ISOFS_I(inode); struct iso_inode_info *ei = ISOFS_I(inode);
char *link = kmap(page); char *link = kmap(page);
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode); unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
struct buffer_head *bh; struct buffer_head *bh;
@ -472,10 +537,10 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
if (!bh) if (!bh)
goto out_noread; goto out_noread;
offset = ei->i_iget5_offset; offset = ei->i_iget5_offset;
pnt = (unsigned char *) bh->b_data + offset; pnt = (unsigned char *)bh->b_data + offset;
raw_inode = (struct iso_directory_record *) pnt; raw_inode = (struct iso_directory_record *)pnt;
/* /*
* If we go past the end of the buffer, there is some sort of error. * If we go past the end of the buffer, there is some sort of error.
@ -489,8 +554,8 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
SETUP_ROCK_RIDGE(raw_inode, chr, len); SETUP_ROCK_RIDGE(raw_inode, chr, len);
repeat: repeat:
while (len > 2) { /* There may be one byte for padding somewhere */ while (len > 2) { /* There may be one byte for padding somewhere */
rr = (struct rock_ridge *) chr; rr = (struct rock_ridge *)chr;
if (rr->len < 3) if (rr->len < 3)
goto out; /* Something got screwed up here */ goto out; /* Something got screwed up here */
sig = isonum_721(chr); sig = isonum_721(chr);
@ -555,5 +620,5 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
} }
struct address_space_operations isofs_symlink_aops = { struct address_space_operations isofs_symlink_aops = {
.readpage = rock_ridge_symlink_readpage .readpage = rock_ridge_symlink_readpage
}; };