shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-09 12:17:12 +09:00
Code Issues Packages Projects Releases Wiki Activity

f2fs: keep meta pages in cp_error state

Browse Source 
It turns out losing meta pages in shutdown period makes f2fs very unstable
so that I could see many unexpected error conditions.

Let's keep meta pages for fault injection and sudden power-off tests.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim
2018-07-11 18:30:42 -07:00
parent 306b69b0ed
commit d4aa07fef6
1 changed files with 13 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
fs/f2fs/checkpoint.c
View File

@@ -243,11 +243,8 @@ static int __f2fs_write_meta_page(struct page *page,
trace_f2fs_writepage(page, META); trace_f2fs_writepage(page, META);
if (unlikely(f2fs_cp_error(sbi))) { if (unlikely(f2fs_cp_error(sbi)))
dec_page_count(sbi, F2FS_DIRTY_META); goto redirty_out;
unlock_page(page);
return 0;
}
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING))) if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
goto redirty_out; goto redirty_out;
if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0)) if (wbc->for_reclaim && page->index < GET_SUM_BLOCK(sbi, 0))
@@ -1130,6 +1127,9 @@ static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
if (!get_pages(sbi, F2FS_WB_CP_DATA)) if (!get_pages(sbi, F2FS_WB_CP_DATA))
break; break;
if (unlikely(f2fs_cp_error(sbi)))
break;
io_schedule_timeout(5*HZ); io_schedule_timeout(5*HZ);
} }
finish_wait(&sbi->cp_wait, &wait); finish_wait(&sbi->cp_wait, &wait);
@@ -1203,8 +1203,12 @@ static void commit_checkpoint(struct f2fs_sb_info *sbi,
/* writeout cp pack 2 page */ /* writeout cp pack 2 page */
err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO); err = __f2fs_write_meta_page(page, &wbc, FS_CP_META_IO);
f2fs_bug_on(sbi, err); if (unlikely(err && f2fs_cp_error(sbi))) {
f2fs_put_page(page, 1);
return;
}
f2fs_bug_on(sbi, err);
f2fs_put_page(page, 0); f2fs_put_page(page, 0);
/* submit checkpoint (with barrier if NOBARRIER is not set) */ /* submit checkpoint (with barrier if NOBARRIER is not set) */
@@ -1230,7 +1234,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
while (get_pages(sbi, F2FS_DIRTY_META)) { while (get_pages(sbi, F2FS_DIRTY_META)) {
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO); f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
if (unlikely(f2fs_cp_error(sbi))) if (unlikely(f2fs_cp_error(sbi)))
return -EIO; break;
} }
/* /*
@@ -1310,7 +1314,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
f2fs_sync_meta_pages(sbi, META, LONG_MAX, f2fs_sync_meta_pages(sbi, META, LONG_MAX,
FS_CP_META_IO); FS_CP_META_IO);
if (unlikely(f2fs_cp_error(sbi))) if (unlikely(f2fs_cp_error(sbi)))
return -EIO; break;
} }
} }
@@ -1351,9 +1355,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* wait for previous submitted meta pages writeback */ /* wait for previous submitted meta pages writeback */
wait_on_all_pages_writeback(sbi); wait_on_all_pages_writeback(sbi);
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
/* flush all device cache */ /* flush all device cache */
err = f2fs_flush_device_cache(sbi); err = f2fs_flush_device_cache(sbi);
if (err) if (err)
@@ -1365,9 +1366,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
f2fs_release_ino_entry(sbi, false); f2fs_release_ino_entry(sbi, false);
if (unlikely(f2fs_cp_error(sbi)))
return -EIO;
clear_sbi_flag(sbi, SBI_IS_DIRTY); clear_sbi_flag(sbi, SBI_IS_DIRTY);
clear_sbi_flag(sbi, SBI_NEED_CP); clear_sbi_flag(sbi, SBI_NEED_CP);
__set_cp_next_pack(sbi); __set_cp_next_pack(sbi);
@@ -1382,7 +1380,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS)); f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_DENTS));
return 0; return unlikely(f2fs_cp_error(sbi)) ? -EIO : 0;
} }
/* /*