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Subject[PATCH 16/52] CRED: Pass credentials through the internals of ext3 truncation
Date
Pass credentials through the internals of ext3 truncation.

Signed-off-by: David Howells <dhowells@redhat.com>
---

fs/ext3/inode.c | 7 ++++---
1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 73b64f3..4313d20 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -1770,9 +1770,8 @@ void ext3_set_aops(struct inode *inode)
* of that block so it doesn't yield old data if the file is later grown.
*/
static int ext3_block_truncate_page(handle_t *handle, struct page *page,
- struct address_space *mapping, loff_t from)
+ struct address_space *mapping, loff_t from, struct cred *cred)
{
- struct cred *cred = current->cred;
ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT;
unsigned offset = from & (PAGE_CACHE_SIZE-1);
unsigned blocksize, iblock, length, pos;
@@ -2230,6 +2229,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
*/
void ext3_truncate(struct inode *inode)
{
+ struct cred *cred = current->cred;
handle_t *handle;
struct ext3_inode_info *ei = EXT3_I(inode);
__le32 *i_data = ei->i_data;
@@ -2281,7 +2281,8 @@ void ext3_truncate(struct inode *inode)
>> EXT3_BLOCK_SIZE_BITS(inode->i_sb);

if (page)
- ext3_block_truncate_page(handle, page, mapping, inode->i_size);
+ ext3_block_truncate_page(handle, page, mapping, inode->i_size,
+ cred);

n = ext3_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
-
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