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ext4: split ext4_ind_truncate from ext4_truncate 

We are about to move all indirect inode functions to a new file.
Before we do that, let's split ext4_ind_truncate() out of ext4_truncate()
leaving only generic code in the latter, so we will be able to move
ext4_ind_truncate() to the new file.

Signed-off-by: Amir Goldstein <amir73il@users.sf.net>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Amir Goldstein 2011-06-27 16:36:31 -04:00 committed by Theodore Ts'o
parent ed7a7e1672
commit ff9893dc8a
2 changed files with 22 additions and 16 deletions
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2
fs/ext4/ext4.h
View File

@ -1834,6 +1834,8 @@ extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
extern qsize_t *ext4_get_reserved_space(struct inode *inode);
extern void ext4_da_update_reserve_space(struct inode *inode,
int used, int quota_claim);
extern void ext4_ind_truncate(struct inode *inode);
/* ioctl.c */
extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long);

36
fs/ext4/inode.c
View File

@ -4470,6 +4470,26 @@ int ext4_punch_hole(struct file *file, loff_t offset, loff_t length)
* ext4_truncate() run will find them and release them.
*/
void ext4_truncate(struct inode *inode)
{
trace_ext4_truncate_enter(inode);
if (!ext4_can_truncate(inode))
return;
ext4_clear_inode_flag(inode, EXT4_INODE_EOFBLOCKS);
if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC))
ext4_set_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE);
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
ext4_ext_truncate(inode);
else
ext4_ind_truncate(inode);
trace_ext4_truncate_exit(inode);
}
void ext4_ind_truncate(struct inode *inode)
{
handle_t *handle;
struct ext4_inode_info *ei = EXT4_I(inode);
@ -4484,22 +4504,6 @@ void ext4_truncate(struct inode *inode)
ext4_lblk_t last_block, max_block;
unsigned blocksize = inode->i_sb->s_blocksize;
trace_ext4_truncate_enter(inode);
if (!ext4_can_truncate(inode))
return;
ext4_clear_inode_flag(inode, EXT4_INODE_EOFBLOCKS);
if (inode->i_size == 0 && !test_opt(inode->i_sb, NO_AUTO_DA_ALLOC))
ext4_set_inode_state(inode, EXT4_STATE_DA_ALLOC_CLOSE);
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
ext4_ext_truncate(inode);
trace_ext4_truncate_exit(inode);
return;
}
handle = start_transaction(inode);
if (IS_ERR(handle))
return; /* AKPM: return what? */