diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/ext4/truncate.h')
| -rw-r--r-- | ANDROID_3.4.5/fs/ext4/truncate.h | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/ANDROID_3.4.5/fs/ext4/truncate.h b/ANDROID_3.4.5/fs/ext4/truncate.h deleted file mode 100644 index 011ba667..00000000 --- a/ANDROID_3.4.5/fs/ext4/truncate.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * linux/fs/ext4/truncate.h - * - * Common inline functions needed for truncate support - */ - -/* - * Truncate blocks that were not used by write. We have to truncate the - * pagecache as well so that corresponding buffers get properly unmapped. - */ -static inline void ext4_truncate_failed_write(struct inode *inode) -{ - truncate_inode_pages(inode->i_mapping, inode->i_size); - ext4_truncate(inode); -} - -/* - * Work out how many blocks we need to proceed with the next chunk of a - * truncate transaction. - */ -static inline unsigned long ext4_blocks_for_truncate(struct inode *inode) -{ - ext4_lblk_t needed; - - needed = inode->i_blocks >> (inode->i_sb->s_blocksize_bits - 9); - - /* Give ourselves just enough room to cope with inodes in which - * i_blocks is corrupt: we've seen disk corruptions in the past - * which resulted in random data in an inode which looked enough - * like a regular file for ext4 to try to delete it. Things - * will go a bit crazy if that happens, but at least we should - * try not to panic the whole kernel. */ - if (needed < 2) - needed = 2; - - /* But we need to bound the transaction so we don't overflow the - * journal. */ - if (needed > EXT4_MAX_TRANS_DATA) - needed = EXT4_MAX_TRANS_DATA; - - return EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + needed; -} - |