talos-obmc-linux/include/linux/ext4_fs_extents.h, branch dev-5.0

ext4: move headers out of include/linux

2008-04-29T22:13:32+00:00

Move ext4 headers out of include/linux. This is just the trivial move, there's some more thing that could be done later. Signed-off-by: Christoph Hellwig Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o"

ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent()

2008-02-25T21:54:37+00:00

The path variable returned via ext4_ext_find_extent is a kmalloc variable and needs to be freeded. It also contains a reference to buffer_head which needs to be dropped. Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: "Theodore Ts'o"

ext4: Add new functions for searching extent tree

2008-01-29T04:58:27+00:00

Add the functions ext4_ext_search_left() and ext4_ext_search_right(), which are used by mballoc during ext4_ext_get_blocks to decided whether to merge extent information. Signed-off-by: Alex Tomas Signed-off-by: Andreas Dilger Signed-off-by: Johann Lombardi Signed-off-by: Aneesh Kumar K.V Signed-off-by: "Theodore Ts'o"

ext4: Add EXT4_IOC_MIGRATE ioctl

2008-01-29T04:58:26+00:00

The below patch add ioctl for migrating ext3 indirect block mapped inode to ext4 extent mapped inode. Signed-off-by: Aneesh Kumar K.V

ext4: Introduce ext4_lblk_t

2008-01-29T04:58:27+00:00

This patch adds a new data type ext4_lblk_t to represent the logical file blocks. This is the preparatory patch to support large files in ext4 The follow up patch with convert the ext4_inode i_blocks to represent the number of blocks in file system block size. This changes makes it possible to have a block number 2**32 -1 which will result in overflow if the block number is represented by signed long. This patch convert all the block number to type ext4_lblk_t which is typedef to __u32 Also remove dead code ext4_ext_walk_space Signed-off-by: Aneesh Kumar K.V Signed-off-by: Mingming Cao Signed-off-by: Eric Sandeen

ext4: Convert ext4_extent_idx.ei_leaf to ext4_extent_idx.ei_leaf_lo

2007-10-17T22:50:03+00:00

Convert ext4_extent_idx.ei_leaf ext4_extent_idx.ei_leaf_lo This helps in finding BUGs due to direct partial access of these split 48 bit values. Signed-off-by: Aneesh Kumar K.V

ext4: Convert ext4_extent.ee_start to ext4_extent.ee_start_lo

2007-10-17T22:50:03+00:00

Convert ext4_extent.ee_start to ext4_extent.ee_start_lo This helps in finding BUGs due to direct partial access of these split 48 bit values Also fix direct partial access in ext4 code Signed-off-by: Aneesh Kumar K.V

Change on-disk format to support 2^15 uninitialized extents

2007-07-18T13:02:56+00:00

This change was suggested by Andreas Dilger. This patch changes the EXT_MAX_LEN value and extent code which marks/checks uninitialized extents. With this change it will be possible to have initialized extents with 2^15 blocks (earlier the max blocks we could have was 2^15 - 1). This way we can have better extent-to-block alignment. Now, maximum number of blocks we can have in an initialized extent is 2^15 and in an uninitialized extent is 2^15 - 1. Signed-off-by: Amit Arora

write support for preallocated blocks

2007-07-18T01:42:38+00:00

This patch adds write support to the uninitialized extents that get created when a preallocation is done using fallocate(). It takes care of splitting the extents into multiple (upto three) extents and merging the new split extents with neighbouring ones, if possible. Signed-off-by: Amit Arora

fallocate support in ext4

2007-07-18T01:42:41+00:00

This patch implements ->fallocate() inode operation in ext4. With this patch users of ext4 file systems will be able to use fallocate() system call for persistent preallocation. Current implementation only supports preallocation for regular files (directories not supported as of date) with extent maps. This patch does not support block-mapped files currently. Only FALLOC_ALLOCATE and FALLOC_RESV_SPACE modes are being supported as of now. Signed-off-by: Amit Arora