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ext4: fix online resize with mballoc

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Update group infos when updating a group's descriptor.
Add group infos when adding a group's descriptor.
Refresh cache pages used by mb_alloc when changes occur.
This will probably need modifications when META_BG resizing will be allowed.

Signed-off-by: Frederic Bohe <frederic.bohe@bull.net>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
This commit is contained in:
Frederic Bohe
2008-07-11 19:27:31 -04:00
committed by Theodore Ts'o
parent 953e622b60
commit 5f21b0e642
3 changed files with 234 additions and 56 deletions
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4
fs/ext4/ext4.h
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@ -1033,6 +1033,10 @@ extern int __init init_ext4_mballoc(void);
extern void exit_ext4_mballoc(void);
extern void ext4_mb_free_blocks(handle_t *, struct inode *,
unsigned long, unsigned long, int, unsigned long *);
extern int ext4_mb_add_more_groupinfo(struct super_block *sb,
ext4_group_t i, struct ext4_group_desc *desc);
extern void ext4_mb_update_group_info(struct ext4_group_info *grp,
ext4_grpblk_t add);
/* inode.c */