ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl

Browse Source

The EXT4_IOC_MOVE_EXT exchanges the blocks between orig_fd and donor_fd,
and then write the file data of orig_fd to donor_fd.
ext4_mext_move_extent() is the main fucntion of ext4 online defrag,
and this patch includes all functions related to ext4 online defrag.

Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: Takashi Sato <t-sato@yk.jp.nec.com>
Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

...

This commit is contained in:

Akira Fujita

2009-06-17 19:24:03 -04:00

committed by Theodore Ts'o

parent 8b0f9e8f78

commit 748de6736c

6 changed files with 1378 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download Patch File Download Diff File Expand all files Collapse all files

1320

fs/ext4/move_extent.c Normal file

File diff suppressed because it is too large Load Diff