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-rw-r--r--fs/isofs/rock.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index efefbcce4ce9..977dd7009c07 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -13,12 +13,14 @@
13#include "isofs.h" 13#include "isofs.h"
14#include "rock.h" 14#include "rock.h"
15 15
16/* These functions are designed to read the system areas of a directory record 16/*
17 * These functions are designed to read the system areas of a directory record
17 * and extract relevant information. There are different functions provided 18 * and extract relevant information. There are different functions provided
18 * depending upon what information we need at the time. One function fills 19 * depending upon what information we need at the time. One function fills
19 * out an inode structure, a second one extracts a filename, a third one 20 * out an inode structure, a second one extracts a filename, a third one
20 * returns a symbolic link name, and a fourth one returns the extent number 21 * returns a symbolic link name, and a fourth one returns the extent number
21 * for the file. */ 22 * for the file.
23 */
22 24
23#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */ 25#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */
24 26
@@ -34,7 +36,7 @@ struct rock_state {
34 36
35/* 37/*
36 * This is a way of ensuring that we have something in the system 38 * This is a way of ensuring that we have something in the system
37 * use fields that is compatible with Rock Ridge. Return zero on success. 39 * use fields that is compatible with Rock Ridge. Return zero on success.
38 */ 40 */
39 41
40static int check_sp(struct rock_ridge *rr, struct inode *inode) 42static int check_sp(struct rock_ridge *rr, struct inode *inode)
@@ -111,7 +113,9 @@ out:
111 return ret; 113 return ret;
112} 114}
113 115
114/* return length of name field; 0: not found, -1: to be ignored */ 116/*
117 * return length of name field; 0: not found, -1: to be ignored
118 */
115int get_rock_ridge_filename(struct iso_directory_record *de, 119int get_rock_ridge_filename(struct iso_directory_record *de,
116 char *retname, struct inode *inode) 120 char *retname, struct inode *inode)
117{ 121{
@@ -535,8 +539,11 @@ static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
535int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode) 539int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
536{ 540{
537 int result = parse_rock_ridge_inode_internal(de, inode, 0); 541 int result = parse_rock_ridge_inode_internal(de, inode, 0);
538 /* if rockridge flag was reset and we didn't look for attributes 542
539 * behind eventual XA attributes, have a look there */ 543 /*
544 * if rockridge flag was reset and we didn't look for attributes
545 * behind eventual XA attributes, have a look there
546 */
540 if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1) 547 if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
541 && (ISOFS_SB(inode->i_sb)->s_rock == 2)) { 548 && (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
542 result = parse_rock_ridge_inode_internal(de, inode, 14); 549 result = parse_rock_ridge_inode_internal(de, inode, 14);
@@ -544,9 +551,10 @@ int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode)
544 return result; 551 return result;
545} 552}
546 553
547/* readpage() for symlinks: reads symlink contents into the page and either 554/*
548 makes it uptodate and returns 0 or returns error (-EIO) */ 555 * readpage() for symlinks: reads symlink contents into the page and either
549 556 * makes it uptodate and returns 0 or returns error (-EIO)
557 */
550static int rock_ridge_symlink_readpage(struct file *file, struct page *page) 558static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
551{ 559{
552 struct inode *inode = page->mapping->host; 560 struct inode *inode = page->mapping->host;
@@ -584,8 +592,10 @@ static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
584 if (offset + *pnt > bufsize) 592 if (offset + *pnt > bufsize)
585 goto out_bad_span; 593 goto out_bad_span;
586 594
587 /* Now test for possible Rock Ridge extensions which will override 595 /*
588 some of these numbers in the inode structure. */ 596 * Now test for possible Rock Ridge extensions which will override
597 * some of these numbers in the inode structure.
598 */
589 599
590 setup_rock_ridge(raw_de, inode, &rs); 600 setup_rock_ridge(raw_de, inode, &rs);
591 601