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Commit a86c6181 authored by Alex Tomas's avatar Alex Tomas Committed by Linus Torvalds
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[PATCH] ext3: add extent map support 



On disk extents format:
/*
* this is extent on-disk structure
* it's used at the bottom of the tree
*/
struct ext3_extent {
__le32  ee_block;       /* first logical block extent covers */
__le16  ee_len;         /* number of blocks covered by extent */
__le16  ee_start_hi;    /* high 16 bits of physical block */
__le32  ee_start;       /* low 32 bigs of physical block */
};

Signed-off-by: default avatarAlex Tomas <alex@clusterfs.com>
Signed-off-by: default avatarDave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent c3fcc813

fs/ext4/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ 
obj-$(CONFIG_EXT4DEV_FS) += ext4dev.o



ext4dev-y	:= balloc.o bitmap.o dir.o file.o fsync.o ialloc.o inode.o \

	   ioctl.o namei.o super.o symlink.o hash.o resize.o

	   ioctl.o namei.o super.o symlink.o hash.o resize.o extents.o



ext4dev-$(CONFIG_EXT4DEV_FS_XATTR)	+= xattr.o xattr_user.o xattr_trusted.o

ext4dev-$(CONFIG_EXT4DEV_FS_POSIX_ACL)	+= acl.o

fs/ext4/dir.c

+1 −2
Original line number Diff line number Diff line
@@ -134,8 +134,7 @@ static int ext4_readdir(struct file * filp, 
		struct buffer_head *bh = NULL;



		map_bh.b_state = 0;

		err = ext4_get_blocks_handle(NULL, inode, blk, 1,

						&map_bh, 0, 0);

		err = ext4_get_blocks_wrap(NULL, inode, blk, 1, &map_bh, 0, 0);

		if (err > 0) {

			page_cache_readahead(sb->s_bdev->bd_inode->i_mapping,

				&filp->f_ra,