lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ext4: Remove old legacy block allocator

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

40
fs/ext4/super.c
View File

@@ -574,7 +574,6 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
ei->i_acl = EXT4_ACL_NOT_CACHED;
ei->i_default_acl = EXT4_ACL_NOT_CACHED;
#endif
ei->i_block_alloc_info = NULL;
ei->vfs_inode.i_version = 1;
ei->vfs_inode.i_data.writeback_index = 0;
memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
@@ -633,7 +632,6 @@ static void destroy_inodecache(void)
static void ext4_clear_inode(struct inode *inode)
{
struct ext4_block_alloc_info *rsv = EXT4_I(inode)->i_block_alloc_info;
#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
if (EXT4_I(inode)->i_acl &&
EXT4_I(inode)->i_acl != EXT4_ACL_NOT_CACHED) {
@@ -646,10 +644,7 @@ static void ext4_clear_inode(struct inode *inode)
EXT4_I(inode)->i_default_acl = EXT4_ACL_NOT_CACHED;
}
#endif
ext4_discard_reservation(inode);
EXT4_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
ext4_discard_preallocations(inode);
jbd2_journal_release_jbd_inode(EXT4_SB(inode->i_sb)->s_journal,
&EXT4_I(inode)->jinode);
}
@@ -760,8 +755,6 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
seq_puts(seq, ",nobh");
if (!test_opt(sb, EXTENTS))
seq_puts(seq, ",noextents");
if (!test_opt(sb, MBALLOC))
seq_puts(seq, ",nomballoc");
if (test_opt(sb, I_VERSION))
seq_puts(seq, ",i_version");
if (!test_opt(sb, DELALLOC))
@@ -1373,12 +1366,6 @@ set_qf_format:
case Opt_nodelalloc:
clear_opt(sbi->s_mount_opt, DELALLOC);
break;
case Opt_mballoc:
set_opt(sbi->s_mount_opt, MBALLOC);
break;
case Opt_nomballoc:
clear_opt(sbi->s_mount_opt, MBALLOC);
break;
case Opt_stripe:
if (match_int(&args[0], &option))
return 0;
@@ -2040,11 +2027,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
ext4_warning(sb, __func__,
"extents feature not enabled on this filesystem, "
"use tune2fs.\n");
/*
* turn on mballoc code by default in ext4 filesystem
* Use -o nomballoc to turn it off
*/
set_opt(sbi->s_mount_opt, MBALLOC);
/*
* enable delayed allocation by default
@@ -2301,19 +2283,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount3;
}
/* per fileystem reservation list head & lock */
spin_lock_init(&sbi->s_rsv_window_lock);
sbi->s_rsv_window_root = RB_ROOT;
/* Add a single, static dummy reservation to the start of the
* reservation window list --- it gives us a placeholder for
* append-at-start-of-list which makes the allocation logic
* _much_ simpler. */
sbi->s_rsv_window_head.rsv_start = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
sbi->s_rsv_window_head.rsv_end = EXT4_RESERVE_WINDOW_NOT_ALLOCATED;
sbi->s_rsv_window_head.rsv_alloc_hit = 0;
sbi->s_rsv_window_head.rsv_goal_size = 0;
ext4_rsv_window_add(sb, &sbi->s_rsv_window_head);
sbi->s_stripe = ext4_get_stripe_size(sbi);
/*
@@ -2510,7 +2479,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
printk(KERN_INFO "EXT4-fs: delayed allocation enabled\n");
ext4_ext_init(sb);
ext4_mb_init(sb, needs_recovery);
err = ext4_mb_init(sb, needs_recovery);
if (err) {
printk(KERN_ERR "EXT4-fs: failed to initalize mballoc (%d)\n",
err);
goto failed_mount4;
}
lock_kernel();
return 0;