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ext4: allow ext4_ext_truncate() to return an error

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Return errors to the caller instead of declaring the file system
corrupted.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Theodore Ts'o
2016-11-13 22:02:28 -05:00
parent 2c98eb5ea2
commit d0abb36db4
3 changed files with 11 additions and 10 deletions
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15
fs/ext4/extents.c
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@@ -4631,7 +4631,7 @@ out2:
return err ? err : allocated;
}
void ext4_ext_truncate(handle_t *handle, struct inode *inode)
int ext4_ext_truncate(handle_t *handle, struct inode *inode)
{
struct super_block *sb = inode->i_sb;
ext4_lblk_t last_block;
@@ -4645,7 +4645,9 @@ void ext4_ext_truncate(handle_t *handle, struct inode *inode)
/* we have to know where to truncate from in crash case */
EXT4_I(inode)->i_disksize = inode->i_size;
ext4_mark_inode_dirty(handle, inode);
err = ext4_mark_inode_dirty(handle, inode);
if (err)
return err;
last_block = (inode->i_size + sb->s_blocksize - 1)
>> EXT4_BLOCK_SIZE_BITS(sb);
@@ -4657,12 +4659,9 @@ retry:
congestion_wait(BLK_RW_ASYNC, HZ/50);
goto retry;
}
if (err) {
ext4_std_error(inode->i_sb, err);
return;
}
err = ext4_ext_remove_space(inode, last_block, EXT_MAX_BLOCKS - 1);
ext4_std_error(inode->i_sb, err);
if (err)
return err;
return ext4_ext_remove_space(inode, last_block, EXT_MAX_BLOCKS - 1);
}
static int ext4_alloc_file_blocks(struct file *file, ext4_lblk_t offset,