If one block has been to written to a new place, just return
in move data process. This patch check it again with holding
page lock.
Signed-off-by: Yunlei He <heyun...@huawei.com>
---
fs/f2fs/gc.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 9c18917..a7b2c13 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -544,7 +544,8 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct
f2fs_summary *sum,
return true;
}
-static void move_encrypted_block(struct inode *inode, block_t bidx)
+static void move_encrypted_block(struct inode *inode, block_t bidx,
+ unsigned int segno, int
off)
{
struct f2fs_io_info fio = {
.sbi = F2FS_I_SB(inode),
@@ -565,6 +566,9 @@ static void move_encrypted_block(struct inode *inode,
block_t bidx)
if (!page)
return;
+ if (!check_valid_map(F2FS_I_SB(inode), segno, off))
+ goto out;
+
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, bidx, LOOKUP_NODE);
if (err)
@@ -645,7 +649,8 @@ static void move_encrypted_block(struct inode *inode,
block_t bidx)
f2fs_put_page(page, 1);
}
-static void move_data_page(struct inode *inode, block_t bidx, int gc_type)
+static void move_data_page(struct inode *inode, block_t bidx, int gc_type,
+ unsigned int segno, int
off)
{
struct page *page;
@@ -653,6 +658,9 @@ static void move_data_page(struct inode *inode, block_t
bidx, int gc_type)
if (IS_ERR(page))
return;
+ if (!check_valid_map(F2FS_I_SB(inode), segno, off))
+ goto out;
+
if (gc_type == BG_GC) {
if (PageWriteback(page))
goto out;
@@ -796,9 +804,9 @@ static void gc_data_segment(struct f2fs_sb_info *sbi,
struct f2fs_summary *sum,
start_bidx = start_bidx_of_node(nofs, inode)
+ ofs_in_node;
if (f2fs_encrypted_inode(inode) &&
S_ISREG(inode->i_mode))
- move_encrypted_block(inode, start_bidx);
+ move_encrypted_block(inode, start_bidx, segno,
off);
else
- move_data_page(inode, start_bidx, gc_type);
+ move_data_page(inode, start_bidx, gc_type,
segno, off);
if (locked) {
up_write(&fi->dio_rwsem[WRITE]);
--
2.10.1
------------------------------------------------------------------------------
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