#include "list.h"
#include "ctree.h"
#include "volumes.h"
+#include "internal.h"
void extent_io_tree_init(struct extent_io_tree *tree)
{
{
struct extent_buffer *eb;
- eb = malloc(sizeof(struct extent_buffer) + blocksize);
- if (!eb) {
- BUG();
+ eb = calloc(1, sizeof(struct extent_buffer) + blocksize);
+ if (!eb)
return NULL;
- }
- memset(eb, 0, sizeof(struct extent_buffer) + blocksize);
eb->start = bytenr;
eb->len = blocksize;
struct extent_buffer *new;
new = __alloc_extent_buffer(NULL, src->start, src->len);
- if (new == NULL)
+ if (!new)
return NULL;
copy_extent_buffer(new, src, 0, 0, src->len);
device = multi->stripes[0].dev;
read_len = min(bytes_left, read_len);
- if (device->fd == 0) {
+ if (device->fd <= 0) {
kfree(multi);
return -EIO;
}
u64 stripe_len = this_len;
this_len = min(this_len, bytes_left);
- this_len = min(this_len, (u64)info->tree_root->leafsize);
+ this_len = min(this_len, (u64)info->tree_root->nodesize);
eb = malloc(sizeof(struct extent_buffer) + this_len);
- BUG_ON(!eb);
+ if (!eb) {
+ fprintf(stderr, "cannot allocate memory for eb\n");
+ ret = -ENOMEM;
+ goto out;
+ }
memset(eb, 0, sizeof(struct extent_buffer) + this_len);
eb->start = offset;
raid_map = NULL;
} else while (dev_nr < multi->num_stripes) {
device = multi->stripes[dev_nr].dev;
- if (device->fd == 0) {
+ if (device->fd <= 0) {
kfree(multi);
return -EIO;
}
multi = NULL;
}
return 0;
+
+out:
+ kfree(raid_map);
+ return ret;
}
int set_extent_buffer_dirty(struct extent_buffer *eb)
{
memset(eb->data + start, c, len);
}
+
+int extent_buffer_test_bit(struct extent_buffer *eb, unsigned long start,
+ unsigned long nr)
+{
+ return le_test_bit(nr, (u8 *)eb->data + start);
+}