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f2fs: fix f2fs_write_meta_page at no checkpoint status

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If f2fs entered errorneous checkpoint status, it should skip writing meta
pages instead of redirtying the pages out.
Otherwise, it cannot unmount the partition even though f2fs is under read-only
status.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Jaegeuk Kim 2014-02-05 13:03:57 +09:00
parent bd859c6598
commit 203681f65b
2 changed files with 23 additions and 8 deletions
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29
fs/f2fs/checkpoint.c
View File

@ -81,17 +81,18 @@ static int f2fs_write_meta_page(struct page *page,
struct inode *inode = page->mapping->host;
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
/* Should not write any meta pages, if any IO error was occurred */
if (unlikely(sbi->por_doing ||
is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
if (unlikely(sbi->por_doing))
goto redirty_out;
if (wbc->for_reclaim)
goto redirty_out;
wait_on_page_writeback(page);
/* Should not write any meta pages, if any IO error was occurred */
if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
goto no_write;
wait_on_page_writeback(page);
write_meta_page(sbi, page);
no_write:
dec_page_count(sbi, F2FS_DIRTY_META);
unlock_page(page);
return 0;
@ -148,10 +149,22 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
for (i = 0; i < nr_pages; i++) {
struct page *page = pvec.pages[i];
lock_page(page);
f2fs_bug_on(page->mapping != mapping);
f2fs_bug_on(!PageDirty(page));
clear_page_dirty_for_io(page);
if (unlikely(page->mapping != mapping)) {
continue_unlock:
unlock_page(page);
continue;
}
if (!PageDirty(page)) {
/* someone wrote it for us */
goto continue_unlock;
}
if (!clear_page_dirty_for_io(page))
goto continue_unlock;
if (f2fs_write_meta_page(page, &wbc)) {
unlock_page(page);
break;

2
fs/f2fs/gc.c
View File

@ -701,6 +701,8 @@ int f2fs_gc(struct f2fs_sb_info *sbi)
gc_more:
if (unlikely(!(sbi->sb->s_flags & MS_ACTIVE)))
goto stop;
if (unlikely(is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)))
goto stop;
if (gc_type == BG_GC && has_not_enough_free_secs(sbi, nfree)) {
gc_type = FG_GC;