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Commit 1bcceaff authored by Joern Engel's avatar Joern Engel Committed by Prasad Joshi
Browse files

logfs: Free areas before calling generic_shutdown_super() 



Or hit an assertion in map_invalidatepage() instead.

Signed-off-by: default avatarJoern Engel <joern@logfs.org>
parent 6c69494f

fs/logfs/logfs.h

+1 −0
Original line number Diff line number Diff line
@@ -596,6 +596,7 @@ int logfs_init_mapping(struct super_block *sb); 
void logfs_sync_area(struct logfs_area *area);

void logfs_sync_segments(struct super_block *sb);

void freeseg(struct super_block *sb, u32 segno);

void free_areas(struct super_block *sb);



/* area handling */

int logfs_init_areas(struct super_block *sb);

fs/logfs/segment.c

+10 −4
Original line number Diff line number Diff line
@@ -862,6 +862,16 @@ static void free_area(struct logfs_area *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)

{

	struct logfs_area *area;
@@ -944,10 +954,6 @@ int logfs_init_areas(struct super_block *sb) 
void logfs_cleanup_areas(struct super_block *sb)

{

	struct logfs_super *super = logfs_super(sb);

	int i;



	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);

}

fs/logfs/super.c

+1 −0
Original line number Diff line number Diff line
@@ -486,6 +486,7 @@ static void logfs_kill_sb(struct super_block *sb) 
	/* Alias entries slow down mount, so evict as many as possible */

	sync_filesystem(sb);

	logfs_write_anchor(sb);

	free_areas(sb);



	/*

	 * From this point on alias entries are simply dropped - and any