summaryrefslogtreecommitdiffstats
path: root/fs/f2fs
diff options
context:
space:
mode:
authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-16 15:09:26 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-18 09:44:14 +0900
commit87a9bd265678ec3cc8431b14bcb14c68d0f94032 (patch)
tree8e9b83647295f111ca19be91d154f673fea10331 /fs/f2fs
parente234088758fca3a669ebb1a02d8bf7bf60f0e4ff (diff)
downloadlinux-87a9bd265678ec3cc8431b14bcb14c68d0f94032.tar.bz2
f2fs: avoid to write during the recovery
This patch enhances the recovery routine not to write any data/node/meta until its completion. If any writes are sent to the disk, it could contaminate the written history that will be used for further recovery. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/checkpoint.c2
-rw-r--r--fs/f2fs/node.c17
2 files changed, 12 insertions, 7 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 2a5999d865b2..8d16071a3b23 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -81,7 +81,7 @@ static int f2fs_write_meta_page(struct page *page,
struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
/* Should not write any meta pages, if any IO error was occurred */
- if (wbc->for_reclaim ||
+ if (wbc->for_reclaim || sbi->por_doing ||
is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)) {
dec_page_count(sbi, F2FS_DIRTY_META);
wbc->pages_skipped++;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 51ef27894433..ef80f791b02b 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1156,6 +1156,9 @@ static int f2fs_write_node_page(struct page *page,
block_t new_addr;
struct node_info ni;
+ if (sbi->por_doing)
+ goto redirty_out;
+
wait_on_page_writeback(page);
/* get old block addr of this node page */
@@ -1171,12 +1174,8 @@ static int f2fs_write_node_page(struct page *page,
return 0;
}
- if (wbc->for_reclaim) {
- dec_page_count(sbi, F2FS_DIRTY_NODES);
- wbc->pages_skipped++;
- set_page_dirty(page);
- return AOP_WRITEPAGE_ACTIVATE;
- }
+ if (wbc->for_reclaim)
+ goto redirty_out;
mutex_lock(&sbi->node_write);
set_page_writeback(page);
@@ -1186,6 +1185,12 @@ static int f2fs_write_node_page(struct page *page,
mutex_unlock(&sbi->node_write);
unlock_page(page);
return 0;
+
+redirty_out:
+ dec_page_count(sbi, F2FS_DIRTY_NODES);
+ wbc->pages_skipped++;
+ set_page_dirty(page);
+ return AOP_WRITEPAGE_ACTIVATE;
}
/*