leandrof/u-boot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ext4: initialize full inode for inodes bigger than 128 bytes

Browse Source 
Make sure the the extra_isize field (offset 128) is initialized to 0, to
mark any extra data as invalid.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Stefan Brüns 2016-09-06 04:36:53 +02:00 committed by Tom Rini
parent 290ce2f95a
commit 87f9fdc08d
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
fs/ext4/ext4_write.c
View File

@ -560,7 +560,7 @@ static int ext4fs_delete_file(int inodeno)
read_buffer = read_buffer + blkoff;
inode_buffer = (struct ext2_inode *)read_buffer;
memset(inode_buffer, '\0', sizeof(struct ext2_inode));
memset(inode_buffer, '\0', fs->inodesz);
/* write the inode to original position in inode table */
if (ext4fs_put_metadata(start_block_address, blkno))
@ -866,7 +866,7 @@ int ext4fs_write(const char *fname, unsigned char *buffer,
ALLOC_CACHE_ALIGN_BUFFER(char, filename, 256);
memset(filename, 0x00, 256);
g_parent_inode = zalloc(sizeof(struct ext2_inode));
g_parent_inode = zalloc(fs->inodesz);
if (!g_parent_inode)
goto fail;
@ -969,8 +969,7 @@ int ext4fs_write(const char *fname, unsigned char *buffer,
if (ext4fs_log_journal(temp_ptr, parent_itable_blkno))
goto fail;
memcpy(temp_ptr + blkoff, g_parent_inode,
sizeof(struct ext2_inode));
memcpy(temp_ptr + blkoff, g_parent_inode, fs->inodesz);
if (ext4fs_put_metadata(temp_ptr, parent_itable_blkno))
goto fail;
} else {
@ -978,8 +977,7 @@ int ext4fs_write(const char *fname, unsigned char *buffer,
* If parent and child fall in same inode table block
* both should be kept in 1 buffer
*/
memcpy(temp_ptr + blkoff, g_parent_inode,
sizeof(struct ext2_inode));
memcpy(temp_ptr + blkoff, g_parent_inode, fs->inodesz);
gd_index--;
if (ext4fs_put_metadata(temp_ptr, itable_blkno))
goto fail;