diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2009-06-02 08:09:22 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-11 20:01:47 -0700 |
| commit | 5493749d2491380de2a06719a86125c122934c9d (patch) | |
| tree | dd51605563e271bc7b061f73a19a8558ef9d7011 /fs/ext4/ext4.h | |
| parent | ef38fe332870b7c1fb831c18ee5eb298a3e51b01 (diff) | |
ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl
(cherry picked from commit ccd2506bd43113659aa904d5bea5d1300605e2a6)
Add an ioctl which forces all of the delay allocated blocks to be
allocated. This also provides a function ext4_alloc_da_blocks() which
will be used by the following commits to force files to be fully
allocated to preserve application-expected ext3 behaviour.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 67161c1b055..cfb2ee1fcc4 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -326,7 +326,9 @@ struct ext4_new_group_data { #define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long) #define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input) #define EXT4_IOC_MIGRATE _IO('f', 9) + /* note ioctl 10 reserved for an early version of the FIEMAP ioctl */ /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */ +#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12) /* * ioctl commands in 32 bit emulation @@ -1102,6 +1104,7 @@ extern int ext4_can_truncate(struct inode *inode); extern void ext4_truncate (struct inode *); extern void ext4_set_inode_flags(struct inode *); extern void ext4_get_inode_flags(struct ext4_inode_info *); +extern int ext4_alloc_da_blocks(struct inode *inode); extern void ext4_set_aops(struct inode *inode); extern int ext4_writepage_trans_blocks(struct inode *); extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks); |