From ae24f28d39610a4810c78185cf599a771cf6ee1f Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 25 May 2011 17:39:48 -0400
Subject: [PATCH] ext4: Convert ext4 to new truncate calling convention
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>
---
fs/ext4/file.c | 1 -
fs/ext4/inode.c | 4 +---
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 7b80d543b89e7..2c09723220091 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -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
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 65576c02c6f5c..50d0e9c645845 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3511,7 +3511,7 @@ static ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb,
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))
--
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