diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 7d54850f7136..a2c21aa09e2b 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3186,7 +3186,7 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, { struct ext4_ext_path *path = NULL; struct ext4_extent_header *eh; - struct ext4_extent newex, *ex; + struct ext4_extent newex, *ex, *last_ex; ext4_fsblk_t newblock; int err = 0, depth, ret, cache_type; unsigned int allocated = 0; @@ -3367,6 +3367,19 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, EXT4_STATE_DIO_UNWRITTEN); } } + + if (unlikely(EXT4_I(inode)->i_flags & EXT4_EOFBLOCKS_FL)) { + if (eh->eh_entries) { + last_ex = EXT_LAST_EXTENT(eh); + if (iblock + ar.len > le32_to_cpu(last_ex->ee_block) + + ext4_ext_get_actual_len(last_ex)) + EXT4_I(inode)->i_flags &= ~EXT4_EOFBLOCKS_FL; + } else { + WARN_ON(eh->eh_entries == 0); + ext4_error(inode->i_sb, __func__, + "inode#%lu, eh->eh_entries = 0!", inode->i_ino); + } + } err = ext4_ext_insert_extent(handle, inode, path, &newex, flags); if (err) { /* free data blocks we just allocated */ @@ -3500,6 +3513,13 @@ static void ext4_falloc_update_inode(struct inode *inode, i_size_write(inode, new_size); if (new_size > EXT4_I(inode)->i_disksize) ext4_update_i_disksize(inode, new_size); + } else { + /* + * Mark that we allocate beyond EOF so the subsequent truncate + * can proceed even if the new size is the same as i_size. + */ + if (new_size > i_size_read(inode)) + EXT4_I(inode)->i_flags |= EXT4_EOFBLOCKS_FL; } } |