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ext4: Remove old legacy block allocator

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Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2008-10-10 09:40:52 -04:00
parent 240799cdf2
commit c2ea3fde61
12 changed files with 40 additions and 1528 deletions
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22
fs/ext4/mballoc.c
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@@ -534,9 +534,6 @@ static int __mb_check_buddy(struct ext4_buddy *e4b, char *file,
void *buddy;
void *buddy2;
if (!test_opt(sb, MBALLOC))
return 0;
{
static int mb_check_counter;
if (mb_check_counter++ % 100 != 0)
@@ -2487,19 +2484,14 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
unsigned max;
int ret;
if (!test_opt(sb, MBALLOC))
return 0;
i = (sb->s_blocksize_bits + 2) * sizeof(unsigned short);
sbi->s_mb_offsets = kmalloc(i, GFP_KERNEL);
if (sbi->s_mb_offsets == NULL) {
clear_opt(sbi->s_mount_opt, MBALLOC);
return -ENOMEM;
}
sbi->s_mb_maxs = kmalloc(i, GFP_KERNEL);
if (sbi->s_mb_maxs == NULL) {
clear_opt(sbi->s_mount_opt, MBALLOC);
kfree(sbi->s_mb_maxs);
return -ENOMEM;
}
@@ -2522,7 +2514,6 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
/* init file for buddy data */
ret = ext4_mb_init_backend(sb);
if (ret != 0) {
clear_opt(sbi->s_mount_opt, MBALLOC);
kfree(sbi->s_mb_offsets);
kfree(sbi->s_mb_maxs);
return ret;
@@ -2544,7 +2535,6 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
sbi->s_locality_groups = alloc_percpu(struct ext4_locality_group);
if (sbi->s_locality_groups == NULL) {
clear_opt(sbi->s_mount_opt, MBALLOC);
kfree(sbi->s_mb_offsets);
kfree(sbi->s_mb_maxs);
return -ENOMEM;
@@ -2590,9 +2580,6 @@ int ext4_mb_release(struct super_block *sb)
struct ext4_group_info *grinfo;
struct ext4_sb_info *sbi = EXT4_SB(sb);
if (!test_opt(sb, MBALLOC))
return 0;
/* release freed, non-committed blocks */
spin_lock(&sbi->s_md_lock);
list_splice_init(&sbi->s_closed_transaction,
@@ -3805,7 +3792,7 @@ out:
*
* FIXME!! Make sure it is valid at all the call sites
*/
void ext4_mb_discard_inode_preallocations(struct inode *inode)
void ext4_discard_preallocations(struct inode *inode)
{
struct ext4_inode_info *ei = EXT4_I(inode);
struct super_block *sb = inode->i_sb;
@@ -3817,7 +3804,7 @@ void ext4_mb_discard_inode_preallocations(struct inode *inode)
struct ext4_buddy e4b;
int err;
if (!test_opt(sb, MBALLOC) || !S_ISREG(inode->i_mode)) {
if (!S_ISREG(inode->i_mode)) {
/*BUG_ON(!list_empty(&ei->i_prealloc_list));*/
return;
}
@@ -4300,11 +4287,6 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
sb = ar->inode->i_sb;
sbi = EXT4_SB(sb);
if (!test_opt(sb, MBALLOC)) {
block = ext4_old_new_blocks(handle, ar->inode, ar->goal,
&(ar->len), errp);
return block;
}
if (!EXT4_I(ar->inode)->i_delalloc_reserved_flag) {
/*
* With delalloc we already reserved the blocks