diff options
Diffstat (limited to 'fs/udf/inode.c')
| -rw-r--r-- | fs/udf/inode.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index fa3c154..b2fe4d7 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -301,10 +301,9 @@ static int udf_get_block(struct inode *inode, sector_t block, err = -EIO; new = 0; bh = NULL; - - lock_kernel(); - iinfo = UDF_I(inode); + + down_write(&iinfo->i_data_sem); if (block == iinfo->i_next_alloc_block + 1) { iinfo->i_next_alloc_block++; iinfo->i_next_alloc_goal++; @@ -323,7 +322,7 @@ static int udf_get_block(struct inode *inode, sector_t block, map_bh(bh_result, inode->i_sb, phys); abort: - unlock_kernel(); + up_write(&iinfo->i_data_sem); return err; } @@ -1021,16 +1020,16 @@ void udf_truncate(struct inode *inode) if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) return; - lock_kernel(); iinfo = UDF_I(inode); if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) { + down_write(&iinfo->i_data_sem); if (inode->i_sb->s_blocksize < (udf_file_entry_alloc_offset(inode) + inode->i_size)) { udf_expand_file_adinicb(inode, inode->i_size, &err); if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) { inode->i_size = iinfo->i_lenAlloc; - unlock_kernel(); + up_write(&iinfo->i_data_sem); return; } else udf_truncate_extents(inode); @@ -1041,10 +1040,13 @@ void udf_truncate(struct inode *inode) offset - udf_file_entry_alloc_offset(inode)); iinfo->i_lenAlloc = inode->i_size; } + up_write(&iinfo->i_data_sem); } else { block_truncate_page(inode->i_mapping, inode->i_size, udf_get_block); + down_write(&iinfo->i_data_sem); udf_truncate_extents(inode); + up_write(&iinfo->i_data_sem); } inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); @@ -1052,7 +1054,6 @@ void udf_truncate(struct inode *inode) udf_sync_inode(inode); else mark_inode_dirty(inode); - unlock_kernel(); } static void __udf_read_inode(struct inode *inode) @@ -2043,7 +2044,7 @@ long udf_block_map(struct inode *inode, sector_t block) struct extent_position epos = {}; int ret; - lock_kernel(); + down_read(&UDF_I(inode)->i_data_sem); if (inode_bmap(inode, block, &epos, &eloc, &elen, &offset) == (EXT_RECORDED_ALLOCATED >> 30)) @@ -2051,7 +2052,7 @@ long udf_block_map(struct inode *inode, sector_t block) else ret = 0; - unlock_kernel(); + up_read(&UDF_I(inode)->i_data_sem); brelse(epos.bh); if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_VARCONV)) |