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ext4: Convert ext4 to new truncate calling convention

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Trivial conversion.  Fixup one error handling case calling vmtruncate()
and remove ->truncate callback. We also fix a bug that IS_IMMUTABLE and
IS_APPEND files could not be truncated during failed writes. In fact, the
test can be completely removed as upper layers do necessary permission
checks for truncate in do_sys_[f]truncate() and may_open() anyway.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Jan Kara 2011-05-25 17:39:48 -04:00 committed by Theodore Ts'o
parent 556b27abf7
commit ae24f28d39
2 changed files with 1 additions and 4 deletions
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1
fs/ext4/file.c
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@ -272,7 +272,6 @@ const struct file_operations ext4_file_operations = {
};
const struct inode_operations ext4_file_inode_operations = {
.truncate = ext4_truncate,
.setattr = ext4_setattr,
.getattr = ext4_getattr,
#ifdef CONFIG_EXT4_FS_XATTR

4
fs/ext4/inode.c
View File

@ -3511,7 +3511,7 @@ retry:
loff_t end = offset + iov_length(iov, nr_segs);
if (end > isize)
vmtruncate(inode, isize);
ext4_truncate_failed_write(inode);
}
}
if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
@ -4407,8 +4407,6 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
int ext4_can_truncate(struct inode *inode)
{
if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
return 0;
if (S_ISREG(inode->i_mode))
return 1;
if (S_ISDIR(inode->i_mode))