/*
* NAME: jfs_mount_rw(sb, remount)
*
* FUNCTION: Completes read-write mount, or remounts read-only volume
* as read-write
*/
int jfs_mount_rw(struct super_block *sb, int remount)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
int rc;
/*
* If we are re-mounting a previously read-only volume, we want to
* re-read the inode and block maps, since fsck.jfs may have updated
* them.
*/
if (remount) {
if (chkSuper(sb) || (sbi->state != FM_CLEAN))
return -EINVAL;
truncate_inode_pages(sbi->ipimap->i_mapping, 0);
truncate_inode_pages(sbi->ipbmap->i_mapping, 0);
diUnmount(sbi->ipimap, 1);
if ((rc = diMount(sbi->ipimap))) {
jfs_err("jfs_mount_rw: diMount failed!");
return rc;
}
dbUnmount(sbi->ipbmap, 1);
if ((rc = dbMount(sbi->ipbmap))) {
jfs_err("jfs_mount_rw: dbMount failed!");
return rc;
}
}
/*
* open/initialize log
*/
if ((rc = lmLogOpen(sb)))
return rc;
/*
* update file system superblock;
*/
if ((rc = updateSuper(sb, FM_MOUNT))) {
jfs_err("jfs_mount: updateSuper failed w/rc = %d", rc);
lmLogClose(sb);
return rc;
}
/*
* write MOUNT log record of the file system
*/
logMOUNT(sb);
/*
* Set page cache allocation policy
*/
mapping_set_gfp_mask(sb->s_bdev->bd_inode->i_mapping, GFP_NOFS);
return rc;
}
int jfs_mount_rw(struct super_block *sb, int remount)
{
struct jfs_sb_info *sbi = JFS_SBI(sb);
int rc;
if (remount) {
if (chkSuper(sb) || (sbi->state != FM_CLEAN))
return -EINVAL;
truncate_inode_pages(sbi->ipimap->i_mapping, 0);
truncate_inode_pages(sbi->ipbmap->i_mapping, 0);
diUnmount(sbi->ipimap, 1);
if ((rc = diMount(sbi->ipimap))) {
jfs_err("jfs_mount_rw: diMount failed!");
return rc;
}
dbUnmount(sbi->ipbmap, 1);
if ((rc = dbMount(sbi->ipbmap))) {
jfs_err("jfs_mount_rw: dbMount failed!");
return rc;
}
}
if ((rc = lmLogOpen(sb)))
return rc;
if ((rc = updateSuper(sb, FM_MOUNT))) {
jfs_err("jfs_mount: updateSuper failed w/rc = %d", rc);
lmLogClose(sb);
return rc;
}
logMOUNT(sb);
return rc;
}
