diff options
Diffstat (limited to 'fs/ext4/indirect.c')
| -rw-r--r-- | fs/ext4/indirect.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c index b8602cde5b5a..3cfc73fbca8e 100644 --- a/fs/ext4/indirect.c +++ b/fs/ext4/indirect.c @@ -699,6 +699,13 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode, /* * Okay, we need to do block allocation. */ + if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb, + EXT4_FEATURE_RO_COMPAT_BIGALLOC)) { + EXT4_ERROR_INODE(inode, "Can't allocate blocks for " + "non-extent mapped inodes with bigalloc"); + return -ENOSPC; + } + goal = ext4_find_goal(inode, map->m_lblk, partial); /* the number of blocks need to allocate for [d,t]indirect blocks */ @@ -800,12 +807,17 @@ ssize_t ext4_ind_direct_IO(int rw, struct kiocb *iocb, } retry: - if (rw == READ && ext4_should_dioread_nolock(inode)) + if (rw == READ && ext4_should_dioread_nolock(inode)) { + if (unlikely(!list_empty(&ei->i_completed_io_list))) { + mutex_lock(&inode->i_mutex); + ext4_flush_completed_IO(inode); + mutex_unlock(&inode->i_mutex); + } ret = __blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, offset, nr_segs, ext4_get_block, NULL, NULL, 0); - else { + } else { ret = blockdev_direct_IO(rw, iocb, inode, iov, offset, nr_segs, ext4_get_block); @@ -1338,7 +1350,9 @@ void ext4_ind_truncate(struct inode *inode) __le32 nr = 0; int n = 0; ext4_lblk_t last_block, max_block; + loff_t page_len; unsigned blocksize = inode->i_sb->s_blocksize; + int err; handle = start_transaction(inode); if (IS_ERR(handle)) @@ -1349,9 +1363,16 @@ void ext4_ind_truncate(struct inode *inode) max_block = (EXT4_SB(inode->i_sb)->s_bitmap_maxbytes + blocksize-1) >> EXT4_BLOCK_SIZE_BITS(inode->i_sb); - if (inode->i_size & (blocksize - 1)) - if (ext4_block_truncate_page(handle, mapping, inode->i_size)) + if (inode->i_size % PAGE_CACHE_SIZE != 0) { + page_len = PAGE_CACHE_SIZE - + (inode->i_size & (PAGE_CACHE_SIZE - 1)); + + err = ext4_discard_partial_page_buffers(handle, + mapping, inode->i_size, page_len, 0); + + if (err) goto out_stop; + } if (last_block != max_block) { n = ext4_block_to_path(inode, last_block, offsets, NULL); |