diff options
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 8204176256c8..2a076d236ba1 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1706,13 +1706,16 @@ static int ext4_da_map_blocks(struct inode *inode, sector_t iblock, } /* - * Delayed extent could be allocated by fallocate. - * So we need to check it. + * the buffer head associated with a delayed and not unwritten + * block found in the extent status cache must contain an + * invalid block number and have its BH_New and BH_Delay bits + * set, reflecting the state assigned when the block was + * initially delayed allocated */ - if (ext4_es_is_delayed(&es) && !ext4_es_is_unwritten(&es)) { - map_bh(bh, inode->i_sb, invalid_block); - set_buffer_new(bh); - set_buffer_delay(bh); + if (ext4_es_is_delonly(&es)) { + BUG_ON(bh->b_blocknr != invalid_block); + BUG_ON(!buffer_new(bh)); + BUG_ON(!buffer_delay(bh)); return 0; } |