* when setting the reservation window size through ioctl before the file
* is open for write (needs block allocation).
*
- * Needs truncate_mutex protection prior to call this function.
+ * Needs down_write(i_data_sem) protection prior to call this function.
*/
void ext4_init_block_alloc_info(struct inode *inode)
{
struct ext4_reserve_window_node *rsv;
spinlock_t *rsv_lock = &EXT4_SB(inode->i_sb)->s_rsv_window_lock;
+ ext4_mb_discard_inode_preallocations(inode);
+
if (!block_i)
return;
* @inode: inode
* @block: start physical block to free
* @count: number of blocks to count
+ * @metadata: Are these metadata blocks
*/
void ext4_free_blocks(handle_t *handle, struct inode *inode,
- ext4_fsblk_t block, unsigned long count)
+ ext4_fsblk_t block, unsigned long count,
+ int metadata)
{
struct super_block * sb;
unsigned long dquot_freed_blocks;
+ /* this isn't the right place to decide whether block is metadata
+ * inode.c/extents.c knows better, but for safety ... */
+ if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode) ||
+ ext4_should_journal_data(inode))
+ metadata = 1;
+
sb = inode->i_sb;
- if (!sb) {
- printk ("ext4_free_blocks: nonexistent device");
- return;
- }
- ext4_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
+
+ if (!test_opt(sb, MBALLOC) || !EXT4_SB(sb)->s_group_info)
+ ext4_free_blocks_sb(handle, sb, block, count,
+ &dquot_freed_blocks);
+ else
+ ext4_mb_free_blocks(handle, inode, block, count,
+ metadata, &dquot_freed_blocks);
if (dquot_freed_blocks)
DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
return;
}
/**
- * ext4_new_blocks() -- core block(s) allocation function
+ * ext4_new_blocks_old() -- core block(s) allocation function
* @handle: handle to this transaction
* @inode: file inode
* @goal: given target block(filesystem wide)
* any specific goal block.
*
*/
-ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+ext4_fsblk_t ext4_new_blocks_old(handle_t *handle, struct inode *inode,
ext4_fsblk_t goal, unsigned long *count, int *errp)
{
struct buffer_head *bitmap_bh = NULL;
sbi = EXT4_SB(sb);
es = EXT4_SB(sb)->s_es;
- ext4_debug("goal=%lu.\n", goal);
+ ext4_debug("goal=%llu.\n", goal);
/*
* Allocate a block from reservation only when
* filesystem is mounted with reservation(default,-o reservation), and
/*
* Now search the rest of the groups. We assume that
- * i and gdp correctly point to the last group visited.
+ * group_no and gdp correctly point to the last group visited.
*/
for (bgi = 0; bgi < ngroups; bgi++) {
group_no++;
allocated:
- ext4_debug("using block group %d(%d)\n",
+ ext4_debug("using block group %lu(%d)\n",
group_no, gdp->bg_free_blocks_count);
BUFFER_TRACE(gdp_bh, "get_write_access");
}
ext4_fsblk_t ext4_new_block(handle_t *handle, struct inode *inode,
- ext4_fsblk_t goal, int *errp)
+ ext4_fsblk_t goal, int *errp)
+{
+ struct ext4_allocation_request ar;
+ ext4_fsblk_t ret;
+
+ if (!test_opt(inode->i_sb, MBALLOC)) {
+ unsigned long count = 1;
+ ret = ext4_new_blocks_old(handle, inode, goal, &count, errp);
+ return ret;
+ }
+
+ memset(&ar, 0, sizeof(ar));
+ ar.inode = inode;
+ ar.goal = goal;
+ ar.len = 1;
+ ret = ext4_mb_new_blocks(handle, &ar, errp);
+ return ret;
+}
+
+ext4_fsblk_t ext4_new_blocks(handle_t *handle, struct inode *inode,
+ ext4_fsblk_t goal, unsigned long *count, int *errp)
{
- unsigned long count = 1;
+ struct ext4_allocation_request ar;
+ ext4_fsblk_t ret;
+
+ if (!test_opt(inode->i_sb, MBALLOC)) {
+ ret = ext4_new_blocks_old(handle, inode, goal, count, errp);
+ return ret;
+ }
- return ext4_new_blocks(handle, inode, goal, &count, errp);
+ memset(&ar, 0, sizeof(ar));
+ ar.inode = inode;
+ ar.goal = goal;
+ ar.len = *count;
+ ret = ext4_mb_new_blocks(handle, &ar, errp);
+ *count = ar.len;
+ return ret;
}
+
/**
* ext4_count_free_blocks() -- count filesystem free blocks
* @sb: superblock
brelse(bitmap_bh);
printk("ext4_count_free_blocks: stored = %llu"
", computed = %llu, %llu\n",
- EXT4_FREE_BLOCKS_COUNT(es),
+ ext4_free_blocks_count(es),
desc_count, bitmap_count);
return bitmap_count;
#else
static unsigned long ext4_bg_num_gdb_nometa(struct super_block *sb,
ext4_group_t group)
{
- if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
- EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER) &&
- !ext4_group_sparse(group))
- return 0;
- return EXT4_SB(sb)->s_gdb_count;
+ return ext4_bg_has_super(sb, group) ? EXT4_SB(sb)->s_gdb_count : 0;
}
/**