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authorHou Pengyang <houpengyang@huawei.com>2017-02-23 09:18:06 +0000
committerJaegeuk Kim <jaegeuk@kernel.org>2017-02-27 09:59:51 -0800
commit6bfaf7b150f7dba04024b7b6420773c09606538c (patch)
tree10751a87f1672eb334616e2c9d17303dee9a95b2 /fs/f2fs
parente15882b6c6caff427fe387e878e2f23de58c053b (diff)
f2fs: remove unsafe bitmap checking
proc A: proc B: - writeback_sb_inodes - __writeback_single_inode - do_writepages - f2fs_write_node_pages - f2fs_balance_fs_bg - write_checkpoint - build_free_nids - flush_nat_entries - __build_free_nids - __flush_nat_entry_set - ra_meta_pages - get_next_nat_page - current_nat_addr - set_to_next_nat [do nat_bitmap checking] - f2fs_change_bit For proc A, nat_bitmap and nat_bitmap_mir would be compared without lock_op and nm_i->nat_tree_lock, while proc B is changing nat_bitmap/nat_bitmap_ver in cp. So it is normal for nat_bitmap/nat_bitmap diffrence under such scenario. This patch fix this by removing the monitoring point. [Fix: 599a09b f2fs: check in-memory nat version bitmap] Signed-off-by: Hou Pengyang <houpengyang@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/node.h6
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/f2fs/node.h b/fs/f2fs/node.h
index d3d289306469..3fc9c4b1dce9 100644
--- a/fs/f2fs/node.h
+++ b/fs/f2fs/node.h
@@ -209,12 +209,6 @@ static inline pgoff_t current_nat_addr(struct f2fs_sb_info *sbi, nid_t start)
(seg_off << sbi->log_blocks_per_seg << 1) +
(block_off & (sbi->blocks_per_seg - 1)));
-#ifdef CONFIG_F2FS_CHECK_FS
- if (f2fs_test_bit(block_off, nm_i->nat_bitmap) !=
- f2fs_test_bit(block_off, nm_i->nat_bitmap_mir))
- f2fs_bug_on(sbi, 1);
-#endif
-
if (f2fs_test_bit(block_off, nm_i->nat_bitmap))
block_addr += sbi->blocks_per_seg;