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![Mike Rapoport](/assets/img/avatar_default.png)
The ER records are printed without explicit log level presuming line
continuation until "\n". After the commit 4bcc595ccd
(printk:
reinstate KERN_CONT for printing continuation lines), the ER records are
printed a character per line.
Adding KERN_CONT to appropriate printk statements restores the printout
behavior.
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
806 lines
18 KiB
C
806 lines
18 KiB
C
/*
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* linux/fs/isofs/rock.c
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*
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* (C) 1992, 1993 Eric Youngdale
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*
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* Rock Ridge Extensions to iso9660
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*/
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#include <linux/slab.h>
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#include <linux/pagemap.h>
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#include "isofs.h"
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#include "rock.h"
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/*
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* These functions are designed to read the system areas of a directory record
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* and extract relevant information. There are different functions provided
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* depending upon what information we need at the time. One function fills
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* out an inode structure, a second one extracts a filename, a third one
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* returns a symbolic link name, and a fourth one returns the extent number
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* for the file.
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*/
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#define SIG(A,B) ((A) | ((B) << 8)) /* isonum_721() */
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struct rock_state {
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void *buffer;
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unsigned char *chr;
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int len;
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int cont_size;
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int cont_extent;
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int cont_offset;
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int cont_loops;
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struct inode *inode;
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};
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/*
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* This is a way of ensuring that we have something in the system
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* use fields that is compatible with Rock Ridge. Return zero on success.
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*/
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static int check_sp(struct rock_ridge *rr, struct inode *inode)
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{
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if (rr->u.SP.magic[0] != 0xbe)
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return -1;
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if (rr->u.SP.magic[1] != 0xef)
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return -1;
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ISOFS_SB(inode->i_sb)->s_rock_offset = rr->u.SP.skip;
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return 0;
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}
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static void setup_rock_ridge(struct iso_directory_record *de,
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struct inode *inode, struct rock_state *rs)
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{
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rs->len = sizeof(struct iso_directory_record) + de->name_len[0];
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if (rs->len & 1)
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(rs->len)++;
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rs->chr = (unsigned char *)de + rs->len;
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rs->len = *((unsigned char *)de) - rs->len;
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if (rs->len < 0)
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rs->len = 0;
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if (ISOFS_SB(inode->i_sb)->s_rock_offset != -1) {
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rs->len -= ISOFS_SB(inode->i_sb)->s_rock_offset;
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rs->chr += ISOFS_SB(inode->i_sb)->s_rock_offset;
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if (rs->len < 0)
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rs->len = 0;
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}
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}
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static void init_rock_state(struct rock_state *rs, struct inode *inode)
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{
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memset(rs, 0, sizeof(*rs));
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rs->inode = inode;
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}
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/* Maximum number of Rock Ridge continuation entries */
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#define RR_MAX_CE_ENTRIES 32
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/*
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* Returns 0 if the caller should continue scanning, 1 if the scan must end
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* and -ve on error.
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*/
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static int rock_continue(struct rock_state *rs)
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{
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int ret = 1;
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int blocksize = 1 << rs->inode->i_blkbits;
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const int min_de_size = offsetof(struct rock_ridge, u);
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kfree(rs->buffer);
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rs->buffer = NULL;
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if ((unsigned)rs->cont_offset > blocksize - min_de_size ||
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(unsigned)rs->cont_size > blocksize ||
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(unsigned)(rs->cont_offset + rs->cont_size) > blocksize) {
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printk(KERN_NOTICE "rock: corrupted directory entry. "
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"extent=%d, offset=%d, size=%d\n",
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rs->cont_extent, rs->cont_offset, rs->cont_size);
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ret = -EIO;
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goto out;
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}
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if (rs->cont_extent) {
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struct buffer_head *bh;
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rs->buffer = kmalloc(rs->cont_size, GFP_KERNEL);
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if (!rs->buffer) {
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ret = -ENOMEM;
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goto out;
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}
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ret = -EIO;
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if (++rs->cont_loops >= RR_MAX_CE_ENTRIES)
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goto out;
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bh = sb_bread(rs->inode->i_sb, rs->cont_extent);
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if (bh) {
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memcpy(rs->buffer, bh->b_data + rs->cont_offset,
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rs->cont_size);
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put_bh(bh);
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rs->chr = rs->buffer;
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rs->len = rs->cont_size;
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rs->cont_extent = 0;
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rs->cont_size = 0;
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rs->cont_offset = 0;
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return 0;
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}
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printk("Unable to read rock-ridge attributes\n");
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}
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out:
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kfree(rs->buffer);
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rs->buffer = NULL;
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return ret;
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}
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/*
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* We think there's a record of type `sig' at rs->chr. Parse the signature
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* and make sure that there's really room for a record of that type.
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*/
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static int rock_check_overflow(struct rock_state *rs, int sig)
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{
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int len;
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switch (sig) {
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case SIG('S', 'P'):
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len = sizeof(struct SU_SP_s);
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break;
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case SIG('C', 'E'):
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len = sizeof(struct SU_CE_s);
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break;
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case SIG('E', 'R'):
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len = sizeof(struct SU_ER_s);
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break;
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case SIG('R', 'R'):
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len = sizeof(struct RR_RR_s);
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break;
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case SIG('P', 'X'):
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len = sizeof(struct RR_PX_s);
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break;
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case SIG('P', 'N'):
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len = sizeof(struct RR_PN_s);
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break;
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case SIG('S', 'L'):
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len = sizeof(struct RR_SL_s);
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break;
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case SIG('N', 'M'):
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len = sizeof(struct RR_NM_s);
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break;
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case SIG('C', 'L'):
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len = sizeof(struct RR_CL_s);
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break;
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case SIG('P', 'L'):
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len = sizeof(struct RR_PL_s);
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break;
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case SIG('T', 'F'):
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len = sizeof(struct RR_TF_s);
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break;
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case SIG('Z', 'F'):
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len = sizeof(struct RR_ZF_s);
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break;
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default:
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len = 0;
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break;
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}
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len += offsetof(struct rock_ridge, u);
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if (len > rs->len) {
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printk(KERN_NOTICE "rock: directory entry would overflow "
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"storage\n");
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printk(KERN_NOTICE "rock: sig=0x%02x, size=%d, remaining=%d\n",
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sig, len, rs->len);
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return -EIO;
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}
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return 0;
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}
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/*
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* return length of name field; 0: not found, -1: to be ignored
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*/
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int get_rock_ridge_filename(struct iso_directory_record *de,
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char *retname, struct inode *inode)
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{
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struct rock_state rs;
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struct rock_ridge *rr;
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int sig;
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int retnamlen = 0;
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int truncate = 0;
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int ret = 0;
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char *p;
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int len;
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if (!ISOFS_SB(inode->i_sb)->s_rock)
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return 0;
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*retname = 0;
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init_rock_state(&rs, inode);
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setup_rock_ridge(de, inode, &rs);
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repeat:
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while (rs.len > 2) { /* There may be one byte for padding somewhere */
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rr = (struct rock_ridge *)rs.chr;
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/*
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* Ignore rock ridge info if rr->len is out of range, but
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* don't return -EIO because that would make the file
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* invisible.
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*/
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if (rr->len < 3)
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goto out; /* Something got screwed up here */
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sig = isonum_721(rs.chr);
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if (rock_check_overflow(&rs, sig))
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goto eio;
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rs.chr += rr->len;
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rs.len -= rr->len;
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/*
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* As above, just ignore the rock ridge info if rr->len
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* is bogus.
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*/
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if (rs.len < 0)
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goto out; /* Something got screwed up here */
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switch (sig) {
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case SIG('R', 'R'):
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if ((rr->u.RR.flags[0] & RR_NM) == 0)
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goto out;
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break;
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case SIG('S', 'P'):
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if (check_sp(rr, inode))
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goto out;
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break;
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case SIG('C', 'E'):
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rs.cont_extent = isonum_733(rr->u.CE.extent);
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rs.cont_offset = isonum_733(rr->u.CE.offset);
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rs.cont_size = isonum_733(rr->u.CE.size);
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break;
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case SIG('N', 'M'):
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if (truncate)
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break;
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if (rr->len < 5)
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break;
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/*
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* If the flags are 2 or 4, this indicates '.' or '..'.
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* We don't want to do anything with this, because it
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* screws up the code that calls us. We don't really
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* care anyways, since we can just use the non-RR
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* name.
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*/
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if (rr->u.NM.flags & 6)
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break;
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if (rr->u.NM.flags & ~1) {
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printk("Unsupported NM flag settings (%d)\n",
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rr->u.NM.flags);
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break;
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}
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len = rr->len - 5;
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if (retnamlen + len >= 254) {
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truncate = 1;
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break;
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}
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p = memchr(rr->u.NM.name, '\0', len);
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if (unlikely(p))
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len = p - rr->u.NM.name;
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memcpy(retname + retnamlen, rr->u.NM.name, len);
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retnamlen += len;
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retname[retnamlen] = '\0';
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break;
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case SIG('R', 'E'):
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kfree(rs.buffer);
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return -1;
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default:
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break;
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}
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}
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ret = rock_continue(&rs);
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if (ret == 0)
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goto repeat;
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if (ret == 1)
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return retnamlen; /* If 0, this file did not have a NM field */
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out:
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kfree(rs.buffer);
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return ret;
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eio:
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ret = -EIO;
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goto out;
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}
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#define RR_REGARD_XA 1
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#define RR_RELOC_DE 2
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static int
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parse_rock_ridge_inode_internal(struct iso_directory_record *de,
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struct inode *inode, int flags)
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{
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int symlink_len = 0;
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int cnt, sig;
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unsigned int reloc_block;
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struct inode *reloc;
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struct rock_ridge *rr;
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int rootflag;
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struct rock_state rs;
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int ret = 0;
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if (!ISOFS_SB(inode->i_sb)->s_rock)
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return 0;
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init_rock_state(&rs, inode);
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setup_rock_ridge(de, inode, &rs);
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if (flags & RR_REGARD_XA) {
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rs.chr += 14;
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rs.len -= 14;
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if (rs.len < 0)
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rs.len = 0;
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}
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repeat:
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while (rs.len > 2) { /* There may be one byte for padding somewhere */
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rr = (struct rock_ridge *)rs.chr;
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/*
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* Ignore rock ridge info if rr->len is out of range, but
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* don't return -EIO because that would make the file
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* invisible.
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*/
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if (rr->len < 3)
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goto out; /* Something got screwed up here */
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sig = isonum_721(rs.chr);
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if (rock_check_overflow(&rs, sig))
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goto eio;
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rs.chr += rr->len;
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rs.len -= rr->len;
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/*
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* As above, just ignore the rock ridge info if rr->len
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* is bogus.
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*/
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if (rs.len < 0)
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goto out; /* Something got screwed up here */
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switch (sig) {
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#ifndef CONFIG_ZISOFS /* No flag for SF or ZF */
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case SIG('R', 'R'):
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if ((rr->u.RR.flags[0] &
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(RR_PX | RR_TF | RR_SL | RR_CL)) == 0)
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goto out;
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break;
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#endif
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case SIG('S', 'P'):
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if (check_sp(rr, inode))
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goto out;
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break;
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case SIG('C', 'E'):
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rs.cont_extent = isonum_733(rr->u.CE.extent);
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rs.cont_offset = isonum_733(rr->u.CE.offset);
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rs.cont_size = isonum_733(rr->u.CE.size);
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break;
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case SIG('E', 'R'):
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/* Invalid length of ER tag id? */
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if (rr->u.ER.len_id + offsetof(struct rock_ridge, u.ER.data) > rr->len)
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goto out;
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ISOFS_SB(inode->i_sb)->s_rock = 1;
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printk(KERN_DEBUG "ISO 9660 Extensions: ");
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{
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int p;
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for (p = 0; p < rr->u.ER.len_id; p++)
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printk(KERN_CONT "%c", rr->u.ER.data[p]);
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}
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printk(KERN_CONT "\n");
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break;
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case SIG('P', 'X'):
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inode->i_mode = isonum_733(rr->u.PX.mode);
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set_nlink(inode, isonum_733(rr->u.PX.n_links));
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i_uid_write(inode, isonum_733(rr->u.PX.uid));
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i_gid_write(inode, isonum_733(rr->u.PX.gid));
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break;
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case SIG('P', 'N'):
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{
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int high, low;
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high = isonum_733(rr->u.PN.dev_high);
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low = isonum_733(rr->u.PN.dev_low);
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/*
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* The Rock Ridge standard specifies that if
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* sizeof(dev_t) <= 4, then the high field is
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* unused, and the device number is completely
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* stored in the low field. Some writers may
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* ignore this subtlety,
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* and as a result we test to see if the entire
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* device number is
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* stored in the low field, and use that.
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*/
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if ((low & ~0xff) && high == 0) {
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inode->i_rdev =
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MKDEV(low >> 8, low & 0xff);
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} else {
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inode->i_rdev =
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MKDEV(high, low);
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}
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}
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break;
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case SIG('T', 'F'):
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/*
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* Some RRIP writers incorrectly place ctime in the
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* TF_CREATE field. Try to handle this correctly for
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* either case.
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*/
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/* Rock ridge never appears on a High Sierra disk */
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cnt = 0;
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if (rr->u.TF.flags & TF_CREATE) {
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inode->i_ctime.tv_sec =
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iso_date(rr->u.TF.times[cnt++].time,
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0);
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inode->i_ctime.tv_nsec = 0;
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}
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if (rr->u.TF.flags & TF_MODIFY) {
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inode->i_mtime.tv_sec =
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iso_date(rr->u.TF.times[cnt++].time,
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0);
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inode->i_mtime.tv_nsec = 0;
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}
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if (rr->u.TF.flags & TF_ACCESS) {
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inode->i_atime.tv_sec =
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iso_date(rr->u.TF.times[cnt++].time,
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0);
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inode->i_atime.tv_nsec = 0;
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}
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if (rr->u.TF.flags & TF_ATTRIBUTES) {
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inode->i_ctime.tv_sec =
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iso_date(rr->u.TF.times[cnt++].time,
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0);
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inode->i_ctime.tv_nsec = 0;
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}
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break;
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case SIG('S', 'L'):
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{
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int slen;
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struct SL_component *slp;
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struct SL_component *oldslp;
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slen = rr->len - 5;
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slp = &rr->u.SL.link;
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inode->i_size = symlink_len;
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while (slen > 1) {
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rootflag = 0;
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switch (slp->flags & ~1) {
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case 0:
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inode->i_size +=
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slp->len;
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break;
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case 2:
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inode->i_size += 1;
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break;
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case 4:
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inode->i_size += 2;
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break;
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case 8:
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rootflag = 1;
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inode->i_size += 1;
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break;
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default:
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printk("Symlink component flag "
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"not implemented\n");
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}
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slen -= slp->len + 2;
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oldslp = slp;
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slp = (struct SL_component *)
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(((char *)slp) + slp->len + 2);
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if (slen < 2) {
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if (((rr->u.SL.
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flags & 1) != 0)
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&&
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((oldslp->
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flags & 1) == 0))
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inode->i_size +=
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1;
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break;
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}
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/*
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* If this component record isn't
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* continued, then append a '/'.
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*/
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if (!rootflag
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&& (oldslp->flags & 1) == 0)
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inode->i_size += 1;
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}
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}
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symlink_len = inode->i_size;
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break;
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case SIG('R', 'E'):
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printk(KERN_WARNING "Attempt to read inode for "
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"relocated directory\n");
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goto out;
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case SIG('C', 'L'):
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if (flags & RR_RELOC_DE) {
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printk(KERN_ERR
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"ISOFS: Recursive directory relocation "
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"is not supported\n");
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goto eio;
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}
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reloc_block = isonum_733(rr->u.CL.location);
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if (reloc_block == ISOFS_I(inode)->i_iget5_block &&
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ISOFS_I(inode)->i_iget5_offset == 0) {
|
|
printk(KERN_ERR
|
|
"ISOFS: Directory relocation points to "
|
|
"itself\n");
|
|
goto eio;
|
|
}
|
|
ISOFS_I(inode)->i_first_extent = reloc_block;
|
|
reloc = isofs_iget_reloc(inode->i_sb, reloc_block, 0);
|
|
if (IS_ERR(reloc)) {
|
|
ret = PTR_ERR(reloc);
|
|
goto out;
|
|
}
|
|
inode->i_mode = reloc->i_mode;
|
|
set_nlink(inode, reloc->i_nlink);
|
|
inode->i_uid = reloc->i_uid;
|
|
inode->i_gid = reloc->i_gid;
|
|
inode->i_rdev = reloc->i_rdev;
|
|
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
|
|
case SIG('Z', 'F'): {
|
|
int algo;
|
|
|
|
if (ISOFS_SB(inode->i_sb)->s_nocompress)
|
|
break;
|
|
algo = isonum_721(rr->u.ZF.algorithm);
|
|
if (algo == SIG('p', 'z')) {
|
|
int block_shift =
|
|
isonum_711(&rr->u.ZF.parms[1]);
|
|
if (block_shift > 17) {
|
|
printk(KERN_WARNING "isofs: "
|
|
"Can't handle ZF block "
|
|
"size of 2^%d\n",
|
|
block_shift);
|
|
} else {
|
|
/*
|
|
* Note: we don't change
|
|
* i_blocks here
|
|
*/
|
|
ISOFS_I(inode)->i_file_format =
|
|
isofs_file_compressed;
|
|
/*
|
|
* Parameters to compression
|
|
* algorithm (header size,
|
|
* block size)
|
|
*/
|
|
ISOFS_I(inode)->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
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
ret = rock_continue(&rs);
|
|
if (ret == 0)
|
|
goto repeat;
|
|
if (ret == 1)
|
|
ret = 0;
|
|
out:
|
|
kfree(rs.buffer);
|
|
return ret;
|
|
eio:
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
static char *get_symlink_chunk(char *rpnt, struct rock_ridge *rr, char *plimit)
|
|
{
|
|
int slen;
|
|
int rootflag;
|
|
struct SL_component *oldslp;
|
|
struct SL_component *slp;
|
|
slen = rr->len - 5;
|
|
slp = &rr->u.SL.link;
|
|
while (slen > 1) {
|
|
rootflag = 0;
|
|
switch (slp->flags & ~1) {
|
|
case 0:
|
|
if (slp->len > plimit - rpnt)
|
|
return NULL;
|
|
memcpy(rpnt, slp->text, slp->len);
|
|
rpnt += slp->len;
|
|
break;
|
|
case 2:
|
|
if (rpnt >= plimit)
|
|
return NULL;
|
|
*rpnt++ = '.';
|
|
break;
|
|
case 4:
|
|
if (2 > plimit - rpnt)
|
|
return NULL;
|
|
*rpnt++ = '.';
|
|
*rpnt++ = '.';
|
|
break;
|
|
case 8:
|
|
if (rpnt >= plimit)
|
|
return NULL;
|
|
rootflag = 1;
|
|
*rpnt++ = '/';
|
|
break;
|
|
default:
|
|
printk("Symlink component flag not implemented (%d)\n",
|
|
slp->flags);
|
|
}
|
|
slen -= slp->len + 2;
|
|
oldslp = slp;
|
|
slp = (struct SL_component *)((char *)slp + slp->len + 2);
|
|
|
|
if (slen < 2) {
|
|
/*
|
|
* If there is another SL record, and this component
|
|
* record isn't continued, then add a slash.
|
|
*/
|
|
if ((!rootflag) && (rr->u.SL.flags & 1) &&
|
|
!(oldslp->flags & 1)) {
|
|
if (rpnt >= plimit)
|
|
return NULL;
|
|
*rpnt++ = '/';
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If this component record isn't continued, then append a '/'.
|
|
*/
|
|
if (!rootflag && !(oldslp->flags & 1)) {
|
|
if (rpnt >= plimit)
|
|
return NULL;
|
|
*rpnt++ = '/';
|
|
}
|
|
}
|
|
return rpnt;
|
|
}
|
|
|
|
int parse_rock_ridge_inode(struct iso_directory_record *de, struct inode *inode,
|
|
int relocated)
|
|
{
|
|
int flags = relocated ? RR_RELOC_DE : 0;
|
|
int result = parse_rock_ridge_inode_internal(de, inode, flags);
|
|
|
|
/*
|
|
* if rockridge flag was reset and we didn't look for attributes
|
|
* behind eventual XA attributes, have a look there
|
|
*/
|
|
if ((ISOFS_SB(inode->i_sb)->s_rock_offset == -1)
|
|
&& (ISOFS_SB(inode->i_sb)->s_rock == 2)) {
|
|
result = parse_rock_ridge_inode_internal(de, inode,
|
|
flags | RR_REGARD_XA);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
* readpage() for symlinks: reads symlink contents into the page and either
|
|
* makes it uptodate and returns 0 or returns error (-EIO)
|
|
*/
|
|
static int rock_ridge_symlink_readpage(struct file *file, struct page *page)
|
|
{
|
|
struct inode *inode = page->mapping->host;
|
|
struct iso_inode_info *ei = ISOFS_I(inode);
|
|
struct isofs_sb_info *sbi = ISOFS_SB(inode->i_sb);
|
|
char *link = page_address(page);
|
|
unsigned long bufsize = ISOFS_BUFFER_SIZE(inode);
|
|
struct buffer_head *bh;
|
|
char *rpnt = link;
|
|
unsigned char *pnt;
|
|
struct iso_directory_record *raw_de;
|
|
unsigned long block, offset;
|
|
int sig;
|
|
struct rock_ridge *rr;
|
|
struct rock_state rs;
|
|
int ret;
|
|
|
|
if (!sbi->s_rock)
|
|
goto error;
|
|
|
|
init_rock_state(&rs, inode);
|
|
block = ei->i_iget5_block;
|
|
bh = sb_bread(inode->i_sb, block);
|
|
if (!bh)
|
|
goto out_noread;
|
|
|
|
offset = ei->i_iget5_offset;
|
|
pnt = (unsigned char *)bh->b_data + offset;
|
|
|
|
raw_de = (struct iso_directory_record *)pnt;
|
|
|
|
/*
|
|
* If we go past the end of the buffer, there is some sort of error.
|
|
*/
|
|
if (offset + *pnt > bufsize)
|
|
goto out_bad_span;
|
|
|
|
/*
|
|
* Now test for possible Rock Ridge extensions which will override
|
|
* some of these numbers in the inode structure.
|
|
*/
|
|
|
|
setup_rock_ridge(raw_de, inode, &rs);
|
|
|
|
repeat:
|
|
while (rs.len > 2) { /* There may be one byte for padding somewhere */
|
|
rr = (struct rock_ridge *)rs.chr;
|
|
if (rr->len < 3)
|
|
goto out; /* Something got screwed up here */
|
|
sig = isonum_721(rs.chr);
|
|
if (rock_check_overflow(&rs, sig))
|
|
goto out;
|
|
rs.chr += rr->len;
|
|
rs.len -= rr->len;
|
|
if (rs.len < 0)
|
|
goto out; /* corrupted isofs */
|
|
|
|
switch (sig) {
|
|
case SIG('R', 'R'):
|
|
if ((rr->u.RR.flags[0] & RR_SL) == 0)
|
|
goto out;
|
|
break;
|
|
case SIG('S', 'P'):
|
|
if (check_sp(rr, inode))
|
|
goto out;
|
|
break;
|
|
case SIG('S', 'L'):
|
|
rpnt = get_symlink_chunk(rpnt, rr,
|
|
link + (PAGE_SIZE - 1));
|
|
if (rpnt == NULL)
|
|
goto out;
|
|
break;
|
|
case SIG('C', 'E'):
|
|
/* This tells is if there is a continuation record */
|
|
rs.cont_extent = isonum_733(rr->u.CE.extent);
|
|
rs.cont_offset = isonum_733(rr->u.CE.offset);
|
|
rs.cont_size = isonum_733(rr->u.CE.size);
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
ret = rock_continue(&rs);
|
|
if (ret == 0)
|
|
goto repeat;
|
|
if (ret < 0)
|
|
goto fail;
|
|
|
|
if (rpnt == link)
|
|
goto fail;
|
|
brelse(bh);
|
|
*rpnt = '\0';
|
|
SetPageUptodate(page);
|
|
unlock_page(page);
|
|
return 0;
|
|
|
|
/* error exit from macro */
|
|
out:
|
|
kfree(rs.buffer);
|
|
goto fail;
|
|
out_noread:
|
|
printk("unable to read i-node block");
|
|
goto fail;
|
|
out_bad_span:
|
|
printk("symlink spans iso9660 blocks\n");
|
|
fail:
|
|
brelse(bh);
|
|
error:
|
|
SetPageError(page);
|
|
unlock_page(page);
|
|
return -EIO;
|
|
}
|
|
|
|
const struct address_space_operations isofs_symlink_aops = {
|
|
.readpage = rock_ridge_symlink_readpage
|
|
};
|