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Code Releases Activity

o Fixes to parsing code

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This commit is contained in:
Steven Whitehouse 2001-10-16 11:56:55 +00:00
parent dfe0a65d93
commit e58cb41e7e
1 changed files with 16 additions and 16 deletions
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32
driver/device-mapper/dmfs-table.c
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@ -74,7 +74,7 @@ static void dmfs_parse_line(struct dm_table *t, unsigned num, char *str)
if (rv == 0) {
printk(KERN_DEBUG "%ul %ul %s %s", start, size,
ttype->name,
ttype->print(context));
ttype->print ? ttype->print(context) : "-");
msg = "Error adding target to table";
high = start + (size - 1);
if (dm_table_add_target(t, high, ttype, context) == 0)
@ -90,28 +90,28 @@ out:
static int dmfs_copy(char *dst, int dstlen, char *src, int srclen, int *flag)
{
int copied = 0;
int len = min(dstlen, srclen);
char *start = dst;
while(dstlen && srclen) {
while(len) {
*dst = *src++;
copied++;
if (*dst == '\n')
goto end_of_line;
dst++;
dstlen--;
srclen--;
len--;
}
out:
return copied;
return dst - start;
end_of_line:
*flag = 1;
*dst = 0;
*dst++ = 0;
goto out;
}
static int dmfs_parse_page(struct dm_table *t, char *buf, int len, char *tmp, unsigned long *tmpl, int *num)
static int dmfs_parse_page(struct dm_table *t, char *buf, int end, unsigned long end_index, char *tmp, unsigned long *tmpl, int *num)
{
int copied;
unsigned long len = end ? end_index : PAGE_CACHE_SIZE - 1;
do {
int flag = 0;
@ -121,7 +121,7 @@ static int dmfs_parse_page(struct dm_table *t, char *buf, int len, char *tmp, un
if (*tmpl + copied == PAGE_SIZE - 1)
goto line_too_long;
*tmpl = copied;
if (flag) {
if (flag || (len == 0 && end)) {
dmfs_parse_line(t, *num, tmp);
(*num)++;
*tmpl = 0;
@ -164,7 +164,6 @@ static struct dm_table *dmfs_parse(struct inode *inode)
end_offset = inode->i_size & (PAGE_CACHE_SIZE - 1);
do {
unsigned long end = (index == end_index) ? end_offset : PAGE_CACHE_SIZE;
pg = find_get_page(mapping, index);
if (pg) {
@ -175,14 +174,14 @@ static struct dm_table *dmfs_parse(struct inode *inode)
goto broken;
kaddr = kmap(pg);
rv = dmfs_parse_page(t, kaddr, end, (char *)page, &rem, &num);
rv = dmfs_parse_page(t, kaddr, (index == end_index), end_offset, (char *)page, &rem, &num);
kunmap(pg);
page_cache_release(pg);
if (rv)
goto parse_error;
}
page_cache_release(pg);
index++;
} while(index != end_index);
@ -195,6 +194,7 @@ static struct dm_table *dmfs_parse(struct inode *inode)
broken:
printk(KERN_ERR "dmfs_parse: Page not uptodate\n");
page_cache_release(pg);
free_page(page);
dm_table_destroy(t);
return NULL;
@ -321,7 +321,7 @@ struct address_space_operations dmfs_address_space_operations = {
static struct file_operations dmfs_table_file_operations = {
llseek: generic_file_llseek,
read: generic_file_read,
write: generic_file_write, /* FIXME: Needs to hold dmi->sem */
write: generic_file_write,
open: dmfs_table_open,
release: dmfs_table_release,
fsync: dmfs_table_sync,
@ -330,7 +330,7 @@ static struct file_operations dmfs_table_file_operations = {
static struct inode_operations dmfs_table_inode_operations = {
};
int dmfs_create_table(struct inode *dir, int mode)
struct inode *dmfs_create_table(struct inode *dir, int mode)
{
struct inode *inode = new_inode(dir->i_sb);
@ -342,10 +342,10 @@ int dmfs_create_table(struct inode *dir, int mode)
inode->i_blocks = 0;
inode->i_rdev = NODEV;
inode->i_atime = inode->i_ctime = inode->i_mtime = CURRENT_TIME;
inode->i_mapping = dir->i_mapping;
inode->i_mapping->a_ops = &dmfs_address_space_operations;
inode->i_fop = &dmfs_table_file_operations;
inode->i_op = &dmfs_table_inode_operations;
inode->i_mapping = dir->i_mapping;
}
return inode;