From 2ac3b6e00acb46406c993d57921f86a594aafe08 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Thu, 14 May 2009 13:57:08 -0400 Subject: ext4: Clean up ext4_get_blocks() so it does not depend on bh_result->b_state The ext4_get_blocks() function was depending on the value of bh_result->b_state as an input parameter to decide whether or not update the delalloc accounting statistics by calling ext4_da_update_reserve_space(). We now use a separate flag, EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE, to requests this update, so that all callers of ext4_get_blocks() can clear map_bh.b_state before calling ext4_get_blocks() without worrying about any consistency issues. Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'fs/ext4/ext4.h') diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 17feb4ac633a..d164f1294e5f 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -318,16 +318,21 @@ struct ext4_new_group_data { */ /* Allocate any needed blocks and/or convert an unitialized extent to be an initialized ext4 */ -#define EXT4_GET_BLOCKS_CREATE 1 +#define EXT4_GET_BLOCKS_CREATE 0x0001 /* Request the creation of an unitialized extent */ -#define EXT4_GET_BLOCKS_UNINIT_EXT 2 +#define EXT4_GET_BLOCKS_UNINIT_EXT 0x0002 #define EXT4_GET_BLOCKS_CREATE_UNINIT_EXT (EXT4_GET_BLOCKS_UNINIT_EXT|\ EXT4_GET_BLOCKS_CREATE) /* Update the ext4_inode_info i_disksize field */ -#define EXT4_GET_BLOCKS_EXTEND_DISKSIZE 4 +#define EXT4_GET_BLOCKS_EXTEND_DISKSIZE 0x0004 /* Caller is from the delayed allocation writeout path, - so the filesystem blocks have already been accounted for */ -#define EXT4_GET_BLOCKS_DELALLOC_RESERVE 8 + so set the magic i_delalloc_reserve_flag after taking the + inode allocation semaphore for */ +#define EXT4_GET_BLOCKS_DELALLOC_RESERVE 0x0008 + /* Call ext4_da_update_reserve_space() after successfully + allocating the blocks */ +#define EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE 0x0010 + /* * ioctl commands -- cgit v1.2.3