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f2fs: indicate shutdown f2fs to allow unmount successfully

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Once we shutdown f2fs, we have to flush stale pages in order to unmount
the system. In order to make stable, we need to stop fault injection as well.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2018-06-21 13:46:23 -07:00
parent af697c0f5c
commit 83a3bfdb5a
6 changed files with 18 additions and 5 deletions
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1
fs/f2fs/checkpoint.c
View File

@ -28,6 +28,7 @@ struct kmem_cache *f2fs_inode_entry_slab;
void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io)
{
f2fs_build_fault_attr(sbi, 0);
set_ckpt_flags(sbi, CP_ERROR_FLAG);
if (!end_io)
f2fs_flush_merged_writes(sbi);

7
fs/f2fs/f2fs.h
View File

@ -1066,6 +1066,7 @@ enum {
SBI_POR_DOING, /* recovery is doing or not */
SBI_NEED_SB_WRITE, /* need to recover superblock */
SBI_NEED_CP, /* need to checkpoint */
SBI_IS_SHUTDOWN, /* shutdown by ioctl */
};
enum {
@ -3373,4 +3374,10 @@ static inline bool f2fs_force_buffered_io(struct inode *inode, int rw)
F2FS_I_SB(inode)->s_ndevs);
}
#ifdef CONFIG_F2FS_FAULT_INJECTION
extern void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate);
#else
#define f2fs_build_fault_attr(sbi, rate) do { } while (0)
#endif
#endif

4
fs/f2fs/file.c
View File

@ -1889,6 +1889,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
}
if (sb) {
f2fs_stop_checkpoint(sbi, false);
set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
thaw_bdev(sb->s_bdev, sb);
}
break;
@ -1898,13 +1899,16 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
if (ret)
goto out;
f2fs_stop_checkpoint(sbi, false);
set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
break;
case F2FS_GOING_DOWN_NOSYNC:
f2fs_stop_checkpoint(sbi, false);
set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
break;
case F2FS_GOING_DOWN_METAFLUSH:
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
f2fs_stop_checkpoint(sbi, false);
set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
break;
default:
ret = -EINVAL;

3
fs/f2fs/inode.c
View File

@ -159,6 +159,9 @@ bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
struct f2fs_inode *ri;
__u32 provided, calculated;
if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
return true;
if (!f2fs_enable_inode_chksum(sbi, page) ||
PageDirty(page) || PageWriteback(page))
return true;

3
fs/f2fs/node.c
View File

@ -1146,7 +1146,8 @@ static int read_node_page(struct page *page, int op_flags)
f2fs_get_node_info(sbi, page->index, &ni);
if (unlikely(ni.blk_addr == NULL_ADDR)) {
if (unlikely(ni.blk_addr == NULL_ADDR) ||
is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) {
ClearPageUptodate(page);
return -ENOENT;
}

5
fs/f2fs/super.c
View File

@ -57,8 +57,7 @@ char *fault_name[FAULT_MAX] = {
[FAULT_CHECKPOINT] = "checkpoint error",
};
static void f2fs_build_fault_attr(struct f2fs_sb_info *sbi,
unsigned int rate)
void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate)
{
struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
@ -1379,9 +1378,7 @@ static void default_options(struct f2fs_sb_info *sbi)
set_opt(sbi, POSIX_ACL);
#endif
#ifdef CONFIG_F2FS_FAULT_INJECTION
f2fs_build_fault_attr(sbi, 0);
#endif
}
#ifdef CONFIG_QUOTA