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logfs: Free areas before calling generic_shutdown_super() 

Or hit an assertion in map_invalidatepage() instead.

Signed-off-by: Joern Engel <joern@logfs.org>
This commit is contained in:
Joern Engel 2011-08-05 11:18:19 +02:00 committed by Prasad Joshi
parent 6c69494f6b
commit 1bcceaff8c
3 changed files with 12 additions and 4 deletions

1
fs/logfs/logfs.h
View File

@ -596,6 +596,7 @@ int logfs_init_mapping(struct super_block *sb);
void logfs_sync_area(struct logfs_area *area); void logfs_sync_area(struct logfs_area *area);
void logfs_sync_segments(struct super_block *sb); void logfs_sync_segments(struct super_block *sb);
void freeseg(struct super_block *sb, u32 segno); void freeseg(struct super_block *sb, u32 segno);
void free_areas(struct super_block *sb);
/* area handling */ /* area handling */
int logfs_init_areas(struct super_block *sb); int logfs_init_areas(struct super_block *sb);

14
fs/logfs/segment.c
View File

@ -862,6 +862,16 @@ static void free_area(struct logfs_area *area)
kfree(area); kfree(area);
} }
void free_areas(struct super_block *sb)
{
struct logfs_super *super = logfs_super(sb);
int i;
for_each_area(i)
free_area(super->s_area[i]);
free_area(super->s_journal_area);
}
static struct logfs_area *alloc_area(struct super_block *sb) static struct logfs_area *alloc_area(struct super_block *sb)
{ {
struct logfs_area *area; struct logfs_area *area;
@ -944,10 +954,6 @@ err:
void logfs_cleanup_areas(struct super_block *sb) void logfs_cleanup_areas(struct super_block *sb)
{ {
struct logfs_super *super = logfs_super(sb); struct logfs_super *super = logfs_super(sb);
int i;
btree_grim_visitor128(&super->s_object_alias_tree, 0, kill_alias); btree_grim_visitor128(&super->s_object_alias_tree, 0, kill_alias);
for_each_area(i)
free_area(super->s_area[i]);
free_area(super->s_journal_area);
} }

1
fs/logfs/super.c
View File

@ -486,6 +486,7 @@ static void logfs_kill_sb(struct super_block *sb)
/* Alias entries slow down mount, so evict as many as possible */ /* Alias entries slow down mount, so evict as many as possible */
sync_filesystem(sb); sync_filesystem(sb);
logfs_write_anchor(sb); logfs_write_anchor(sb);
free_areas(sb);
/* /*
* From this point on alias entries are simply dropped - and any * From this point on alias entries are simply dropped - and any