diff options
| author | Stefan Brüns <stefan.bruens@rwth-aachen.de> | 2016-09-06 04:36:53 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-09-23 09:02:42 -0400 |
| commit | 87f9fdc08d927f8e0e346c27620e2e4d0acbb061 (patch) | |
| tree | 29deb2b18d91ada3b2a39c2246c36d28370e6bea /fs | |
| parent | 290ce2f95a7bd3c8a963084b6abab6881197e1df (diff) | |
ext4: initialize full inode for inodes bigger than 128 bytes
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>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/ext4_write.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/fs/ext4/ext4_write.c b/fs/ext4/ext4_write.c index a438be0d6e..ba7ac753b5 100644 --- a/fs/ext4/ext4_write.c +++ b/fs/ext4/ext4_write.c @@ -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; |