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Commit 72b64b59 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] ext4 uninline ext4_get_group_no_and_offset() 



Way too big to inline.

Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 8fadc143

fs/ext4/balloc.c

+18 −0
Original line number Diff line number Diff line
@@ -24,6 +24,24 @@ 
 * balloc.c contains the blocks allocation and deallocation routines

 */



/*

 * Calculate the block group number and offset, given a block number

 */

void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,

		unsigned long *blockgrpp, ext4_grpblk_t *offsetp)

{

        struct ext4_super_block *es = EXT4_SB(sb)->s_es;

	ext4_grpblk_t offset;



        blocknr = blocknr - le32_to_cpu(es->s_first_data_block);

        offset = sector_div(blocknr, EXT4_BLOCKS_PER_GROUP(sb));

	if (offsetp)

		*offsetp = offset;

	if (blockgrpp)

	        *blockgrpp = blocknr;



}



/*

 * The free blocks are managed by bitmaps.  A file system contains several

 * blocks groups.  Each group contains 1 bitmap block for blocks, 1 bitmap

include/linux/ext4_fs.h

+2 −20
Original line number Diff line number Diff line
@@ -769,26 +769,8 @@ ext4_group_first_block_no(struct super_block *sb, unsigned long group_no) 
 */

#define ERR_BAD_DX_DIR	-75000



/*

 * This function calculate the block group number and offset,

 * given a block number

 */



static inline void ext4_get_group_no_and_offset(struct super_block * sb,

                                ext4_fsblk_t blocknr, unsigned long* blockgrpp,

                                ext4_grpblk_t *offsetp)

{

        struct ext4_super_block *es = EXT4_SB(sb)->s_es;

	ext4_grpblk_t offset;



        blocknr = blocknr - le32_to_cpu(es->s_first_data_block);

        offset = sector_div(blocknr, EXT4_BLOCKS_PER_GROUP(sb));

	if (offsetp)

		*offsetp = offset;

	if (blockgrpp)

	        *blockgrpp = blocknr;



}

void ext4_get_group_no_and_offset(struct super_block *sb, ext4_fsblk_t blocknr,

			unsigned long *blockgrpp, ext4_grpblk_t *offsetp);



/*

 * Function prototypes