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| author | Akira Fujita <a-fujita@rs.jp.nec.com> | 2009-06-17 19:24:03 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-06-17 19:24:03 -0400 |
| commit | 748de6736c1e482e111f9d1b5a5d5b1787600cad (patch) | |
| tree | 9e5bd6085cd0eea0453c2a8bbce1422f291f059f /fs/ext4/extents.c | |
| parent | 8b0f9e8f78bd0a65fa001bf18f2c47eef2893a10 (diff) | |
| download | linux-748de6736c1e482e111f9d1b5a5d5b1787600cad.tar.bz2 | |
ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl
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>
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 2593f748c3a4..50322a09bd01 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -49,7 +49,7 @@ * ext_pblock: * combine low and high parts of physical block number into ext4_fsblk_t */ -static ext4_fsblk_t ext_pblock(struct ext4_extent *ex) +ext4_fsblk_t ext_pblock(struct ext4_extent *ex) { ext4_fsblk_t block; @@ -1417,7 +1417,7 @@ static int ext4_ext_correct_indexes(handle_t *handle, struct inode *inode, return err; } -static int +int ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1, struct ext4_extent *ex2) { |