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Commit 742ba02a authored by Marcin Slusarz's avatar Marcin Slusarz Committed by Linus Torvalds
Browse files

udf: create common function for changing free space counter 



Signed-off-by: default avatarMarcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: default avatarJan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 3f2587bb

fs/udf/balloc.c

+20 −29
Original line number Diff line number Diff line
@@ -140,6 +140,20 @@ static inline int load_block_bitmap(struct super_block *sb, 
	return slot;

}



static bool udf_add_free_space(struct udf_sb_info *sbi,

				u16 partition, u32 cnt)

{

	struct logicalVolIntegrityDesc *lvid;



	if (sbi->s_lvid_bh)

		return false;



	lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

	lvid->freeSpaceTable[partition] = cpu_to_le32(le32_to_cpu(

					lvid->freeSpaceTable[partition]) + cnt);

	return true;

}



static void udf_bitmap_free_blocks(struct super_block *sb,

				   struct inode *inode,

				   struct udf_bitmap *bitmap,
@@ -194,11 +208,7 @@ static void udf_bitmap_free_blocks(struct super_block *sb, 
		} else {

			if (inode)

				DQUOT_FREE_BLOCK(inode, 1);

			if (sbi->s_lvid_bh) {

				struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

				lvid->freeSpaceTable[sbi->s_partition] =

					cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[sbi->s_partition]) + 1);

			}

			udf_add_free_space(sbi, sbi->s_partition, 1);

		}

	}

	mark_buffer_dirty(bh);
@@ -268,12 +278,8 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb, 
	if (block_count > 0)

		goto repeat;

out:

	if (sbi->s_lvid_bh) {

		struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

		lvid->freeSpaceTable[partition] =

			cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[partition]) - alloc_count);

	if (udf_add_free_space(sbi, partition, -alloc_count))

		mark_buffer_dirty(sbi->s_lvid_bh);

	}

	sb->s_dirt = 1;

	mutex_unlock(&sbi->s_alloc_mutex);

	return alloc_count;
@@ -404,12 +410,8 @@ static int udf_bitmap_new_block(struct super_block *sb, 


	mark_buffer_dirty(bh);



	if (sbi->s_lvid_bh) {

		struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

		lvid->freeSpaceTable[partition] =

			cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[partition]) - 1);

	if (udf_add_free_space(sbi, partition, -1))

		mark_buffer_dirty(sbi->s_lvid_bh);

	}

	sb->s_dirt = 1;

	mutex_unlock(&sbi->s_alloc_mutex);

	*err = 0;
@@ -450,12 +452,8 @@ static void udf_table_free_blocks(struct super_block *sb, 
	   could occure, but.. oh well */

	if (inode)

		DQUOT_FREE_BLOCK(inode, count);

	if (sbi->s_lvid_bh) {

		struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

		lvid->freeSpaceTable[sbi->s_partition] =

			cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[sbi->s_partition]) + count);

	if (udf_add_free_space(sbi, sbi->s_partition, count))

		mark_buffer_dirty(sbi->s_lvid_bh);

	}



	start = bloc.logicalBlockNum + offset;

	end = bloc.logicalBlockNum + offset + count - 1;
@@ -719,10 +717,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb, 


	brelse(epos.bh);



	if (alloc_count && sbi->s_lvid_bh) {

		struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

		lvid->freeSpaceTable[partition] =

			cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[partition]) - alloc_count);

	if (alloc_count && udf_add_free_space(sbi, partition, -alloc_count)) {

		mark_buffer_dirty(sbi->s_lvid_bh);

		sb->s_dirt = 1;

	}
@@ -822,12 +817,8 @@ static int udf_table_new_block(struct super_block *sb, 
		udf_delete_aext(table, goal_epos, goal_eloc, goal_elen);

	brelse(goal_epos.bh);



	if (sbi->s_lvid_bh) {

		struct logicalVolIntegrityDesc *lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;

		lvid->freeSpaceTable[partition] =

			cpu_to_le32(le32_to_cpu(lvid->freeSpaceTable[partition]) - 1);

	if (udf_add_free_space(sbi, partition, -1))

		mark_buffer_dirty(sbi->s_lvid_bh);

	}



	sb->s_dirt = 1;

	mutex_unlock(&sbi->s_alloc_mutex);