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Message-ID: <b09b1fe8-859d-c4c3-3992-b2da2db46026@huawei.com>
Date: Wed, 24 Jan 2018 10:52:24 +0800
From: Chao Yu <yuchao0@...wei.com>
To: Jaegeuk Kim <jaegeuk@...nel.org>
CC: <linux-f2fs-devel@...ts.sourceforge.net>,
<linux-kernel@...r.kernel.org>, <chao@...nel.org>
Subject: Re: [PATCH v2] mkfs.f2fs: expand scalability of nat bitmap
On 2018/1/24 10:39, Jaegeuk Kim wrote:
> On 01/24, Chao Yu wrote:
>> On 2018/1/24 10:22, Jaegeuk Kim wrote:
>>> On 01/24, Chao Yu wrote:
>>>> On 2018/1/24 6:19, Jaegeuk Kim wrote:
>>>>> On 01/23, Jaegeuk Kim wrote:
>>>>>> On 01/23, Chao Yu wrote:
>>>>>>> On 2018/1/23 7:00, Jaegeuk Kim wrote:
>>>>>>>> On 01/17, Chao Yu wrote:
>>>>>>>>> Hi Jaegeuk,
>>>>>>>>>
>>>>>>>>> On 2018/1/17 8:47, Jaegeuk Kim wrote:
>>>>>>>>>> Hi Chao,
>>>>>>>>>>
>>>>>>>>>> On 01/15, Chao Yu wrote:
>>>>>>>>>>> Previously, our total node number (nat_bitmap) and total nat segment count
>>>>>>>>>>> will not monotonously increase along with image size, and max nat_bitmap size
>>>>>>>>>>> is limited by "CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1", it is
>>>>>>>>>>> with bad scalability when user wants to create more inode/node in larger image.
>>>>>>>>>>>
>>>>>>>>>>> So this patch tries to relieve the limitation, by default, limitting total nat
>>>>>>>>>>> entry number with 20% of total block number.
>>>>>>>>>>>
>>>>>>>>>>> Before:
>>>>>>>>>>> image_size(GB) nat_bitmap sit_bitmap nat_segment sit_segment
>>>>>>>>>>> 16 3836 64 36 2
>>>>>>>>>>> 32 3836 64 72 2
>>>>>>>>>>> 64 3772 128 116 4
>>>>>>>>>>> 128 3708 192 114 6
>>>>>>>>>>> 256 3580 320 110 10
>>>>>>>>>
>>>>>>>>> As you see, nat_segment count will reduce when image size increases
>>>>>>>>> starting from 64GB, that means nat segment count will not monotonously
>>>>>>>>> increase when image size is increasing, so it would be better to active
>>>>>>>>> this when image size is larger than 32GB?
>>>>>>>>>
>>>>>>>>> IMO, configuring basic nid ratio to fixed value like ext4 ("free inode" :
>>>>>>>>> "free block" is about 1 : 4) would be better:
>>>>>>>>> a. It will be easy for user to predict nid count or nat segment count with
>>>>>>>>> fix-sized image;
>>>>>>>>> b. If user wants to reserve more nid count, we can support -N option in
>>>>>>>>> mkfs.f2fs to specify total nid count as user wish.
>>>>>>>>
>>>>>>>> My concern is about a CTS failure in terms of # of free inodes.
>>>>>>>
>>>>>>> You mean testSaneInodes()?
>>>>>>>
>>>>>>> final long maxsize = stat.f_blocks * stat.f_frsize;
>>>>>>> final long maxInodes = maxsize / 4096;
>>>>>>> final long minsize = stat.f_bavail * stat.f_frsize;
>>>>>>> final long minInodes = minsize / 32768;
>>>>>>>
>>>>>>> The range is about [1/8, 1], so our 20% threshold can just let it passed,
>>>>>>> right?
>>>>>>
>>>>>> Yes, thanks for checking the codes. Let me play with this for some time.
>>>>>
>>>>> It simply triggers a panic, if kernel does not have the patch to detect the
>>>>> feature. Hmm...
>>>>
>>>> Yes, because we have changed disk layout of nat/sit_version_bitmap in
>>>> mkfs.f2fs, if kernel can not detect that, we will encounter panic simply.
>>>
>>> , which means we can't do this by default at least.
>>
>> Oh, right, we need to consider to keep backward compactibility for old
>> kernel in mkfs.f2fs by default, what about adding a new option to enable
>> this just for new kernel?
>
> I guess it'd be possible, and we must warn the user when setting this.
Agreed, let me update this patch for this.
Thanks,
>
>>
>> Thanks,
>>
>>>
>>>>
>>>> Thanks,
>>>>
>>>>>
>>>>> Thanks,
>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>>
>>>>>>>>>
>>>>>>>>> How do you think?
>>>>>>>>>
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>>>>> 512 3260 640 100 20
>>>>>>>>>>> 1024 2684 1216 82 38
>>>>>>>>>>> 2048 1468 2432 44 76
>>>>>>>>>>> 4096 3900 4800 120 150
>>>>>>>>>>>
>>>>>>>>>>> After:
>>>>>>>>>>> image_size(GB) nat_bitmap sit_bitmap nat_segment sit_segment
>>>>>>>>>>> 16 256 64 8 2
>>>>>>>>>>> 32 512 64 16 2
>>>>>>>>>>> 64 960 128 30 4
>>>>>>>>>>> 128 1856 192 58 6
>>>>>>>>>>> 256 3712 320 116 10
>>>>>>>>>>
>>>>>>>>>> Can we activate this, if size is larger than 256GB or something around that?
>>>>>>>>>>
>>>>>>>>>> Thanks,
>>>>>>>>>>
>>>>>>>>>>> 512 7424 640 232 20
>>>>>>>>>>> 1024 14787 1216 462 38
>>>>>>>>>>> 2048 29504 2432 922 76
>>>>>>>>>>> 4096 59008 4800 1844 150
>>>>>>>>>>>
>>>>>>>>>>> Signed-off-by: Chao Yu <yuchao0@...wei.com>
>>>>>>>>>>> ---
>>>>>>>>>>> v2:
>>>>>>>>>>> - add CP_LARGE_NAT_BITMAP_FLAG flag to indicate new layout of nat/sit bitmap.
>>>>>>>>>>> fsck/f2fs.h | 19 +++++++++++++------
>>>>>>>>>>> fsck/resize.c | 35 +++++++++++++++++------------------
>>>>>>>>>>> include/f2fs_fs.h | 8 ++++++--
>>>>>>>>>>> lib/libf2fs.c | 1 +
>>>>>>>>>>> mkfs/f2fs_format.c | 45 +++++++++++++++++++++++----------------------
>>>>>>>>>>> 5 files changed, 60 insertions(+), 48 deletions(-)
>>>>>>>>>>>
>>>>>>>>>>> diff --git a/fsck/f2fs.h b/fsck/f2fs.h
>>>>>>>>>>> index f5970d9dafc0..8a5ce365282d 100644
>>>>>>>>>>> --- a/fsck/f2fs.h
>>>>>>>>>>> +++ b/fsck/f2fs.h
>>>>>>>>>>> @@ -239,6 +239,12 @@ static inline unsigned int ofs_of_node(struct f2fs_node *node_blk)
>>>>>>>>>>> return flag >> OFFSET_BIT_SHIFT;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> +static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
>>>>>>>>>>> +{
>>>>>>>>>>> + unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
>>>>>>>>>>> + return ckpt_flags & f ? 1 : 0;
>>>>>>>>>>> +}
>>>>>>>>>>> +
>>>>>>>>>>> static inline unsigned long __bitmap_size(struct f2fs_sb_info *sbi, int flag)
>>>>>>>>>>> {
>>>>>>>>>>> struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
>>>>>>>>>>> @@ -256,6 +262,13 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
>>>>>>>>>>> {
>>>>>>>>>>> struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
>>>>>>>>>>> int offset;
>>>>>>>>>>> +
>>>>>>>>>>> + if (is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG)) {
>>>>>>>>>>> + offset = (flag == SIT_BITMAP) ?
>>>>>>>>>>> + le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
>>>>>>>>>>> + return &ckpt->sit_nat_version_bitmap + offset;
>>>>>>>>>>> + }
>>>>>>>>>>> +
>>>>>>>>>>> if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_payload) > 0) {
>>>>>>>>>>> if (flag == NAT_BITMAP)
>>>>>>>>>>> return &ckpt->sit_nat_version_bitmap;
>>>>>>>>>>> @@ -268,12 +281,6 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
>>>>>>>>>>> }
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> -static inline bool is_set_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
>>>>>>>>>>> -{
>>>>>>>>>>> - unsigned int ckpt_flags = le32_to_cpu(cp->ckpt_flags);
>>>>>>>>>>> - return ckpt_flags & f ? 1 : 0;
>>>>>>>>>>> -}
>>>>>>>>>>> -
>>>>>>>>>>> static inline block_t __start_cp_addr(struct f2fs_sb_info *sbi)
>>>>>>>>>>> {
>>>>>>>>>>> block_t start_addr = le32_to_cpu(F2FS_RAW_SUPER(sbi)->cp_blkaddr);
>>>>>>>>>>> diff --git a/fsck/resize.c b/fsck/resize.c
>>>>>>>>>>> index 143ad5d3c0a1..f3547c86f351 100644
>>>>>>>>>>> --- a/fsck/resize.c
>>>>>>>>>>> +++ b/fsck/resize.c
>>>>>>>>>>> @@ -13,10 +13,10 @@ static int get_new_sb(struct f2fs_super_block *sb)
>>>>>>>>>>> {
>>>>>>>>>>> u_int32_t zone_size_bytes, zone_align_start_offset;
>>>>>>>>>>> u_int32_t blocks_for_sit, blocks_for_nat, blocks_for_ssa;
>>>>>>>>>>> - u_int32_t sit_segments, diff, total_meta_segments;
>>>>>>>>>>> + u_int32_t sit_segments, nat_segments, diff, total_meta_segments;
>>>>>>>>>>> u_int32_t total_valid_blks_available;
>>>>>>>>>>> u_int32_t sit_bitmap_size, max_sit_bitmap_size;
>>>>>>>>>>> - u_int32_t max_nat_bitmap_size, max_nat_segments;
>>>>>>>>>>> + u_int32_t max_nat_bitmap_size;
>>>>>>>>>>> u_int32_t segment_size_bytes = 1 << (get_sb(log_blocksize) +
>>>>>>>>>>> get_sb(log_blocks_per_seg));
>>>>>>>>>>> u_int32_t blks_per_seg = 1 << get_sb(log_blocks_per_seg);
>>>>>>>>>>> @@ -47,7 +47,15 @@ static int get_new_sb(struct f2fs_super_block *sb)
>>>>>>>>>>> get_sb(segment_count_sit))) * blks_per_seg;
>>>>>>>>>>> blocks_for_nat = SIZE_ALIGN(total_valid_blks_available,
>>>>>>>>>>> NAT_ENTRY_PER_BLOCK);
>>>>>>>>>>> - set_sb(segment_count_nat, SEG_ALIGN(blocks_for_nat));
>>>>>>>>>>> + nat_segments = SEG_ALIGN(blocks_for_nat) *
>>>>>>>>>>> + DEFAULT_NAT_ENTRY_RATIO / 100;
>>>>>>>>>>> + set_sb(segment_count_nat, nat_segments ? nat_segments : 1);
>>>>>>>>>>> +
>>>>>>>>>>> + max_nat_bitmap_size = (get_sb(segment_count_nat) <<
>>>>>>>>>>> + get_sb(log_blocks_per_seg)) / 8;
>>>>>>>>>>> + set_sb(segment_count_nat, get_sb(segment_count_nat) * 2);
>>>>>>>>>>> +
>>>>>>>>>>> + c.large_nat_bitmap = 1;
>>>>>>>>>>>
>>>>>>>>>>> sit_bitmap_size = ((get_sb(segment_count_sit) / 2) <<
>>>>>>>>>>> get_sb(log_blocks_per_seg)) / 8;
>>>>>>>>>>> @@ -56,25 +64,16 @@ static int get_new_sb(struct f2fs_super_block *sb)
>>>>>>>>>>> else
>>>>>>>>>>> max_sit_bitmap_size = sit_bitmap_size;
>>>>>>>>>>>
>>>>>>>>>>> - /*
>>>>>>>>>>> - * It should be reserved minimum 1 segment for nat.
>>>>>>>>>>> - * When sit is too large, we should expand cp area. It requires more pages for cp.
>>>>>>>>>>> - */
>>>>>>>>>>> - if (max_sit_bitmap_size > MAX_SIT_BITMAP_SIZE_IN_CKPT) {
>>>>>>>>>>> - max_nat_bitmap_size = CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1;
>>>>>>>>>>> - set_sb(cp_payload, F2FS_BLK_ALIGN(max_sit_bitmap_size));
>>>>>>>>>>> + /* use cp_payload if free space of f2fs_checkpoint is not enough */
>>>>>>>>>>> + if (max_sit_bitmap_size + max_nat_bitmap_size >
>>>>>>>>>>> + MAX_BITMAP_SIZE_IN_CKPT) {
>>>>>>>>>>> + u_int32_t diff = max_sit_bitmap_size + max_nat_bitmap_size -
>>>>>>>>>>> + MAX_BITMAP_SIZE_IN_CKPT;
>>>>>>>>>>> + set_sb(cp_payload, F2FS_BLK_ALIGN(diff));
>>>>>>>>>>> } else {
>>>>>>>>>>> - max_nat_bitmap_size = CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1
>>>>>>>>>>> - - max_sit_bitmap_size;
>>>>>>>>>>> set_sb(cp_payload, 0);
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> - max_nat_segments = (max_nat_bitmap_size * 8) >>
>>>>>>>>>>> - get_sb(log_blocks_per_seg);
>>>>>>>>>>> -
>>>>>>>>>>> - if (get_sb(segment_count_nat) > max_nat_segments)
>>>>>>>>>>> - set_sb(segment_count_nat, max_nat_segments);
>>>>>>>>>>> -
>>>>>>>>>>> set_sb(segment_count_nat, get_sb(segment_count_nat) * 2);
>>>>>>>>>>>
>>>>>>>>>>> set_sb(ssa_blkaddr, get_sb(nat_blkaddr) +
>>>>>>>>>>> diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
>>>>>>>>>>> index 4739085ed98f..edf351412702 100644
>>>>>>>>>>> --- a/include/f2fs_fs.h
>>>>>>>>>>> +++ b/include/f2fs_fs.h
>>>>>>>>>>> @@ -362,6 +362,7 @@ struct f2fs_configuration {
>>>>>>>>>>> int preen_mode;
>>>>>>>>>>> int ro;
>>>>>>>>>>> int preserve_limits; /* preserve quota limits */
>>>>>>>>>>> + int large_nat_bitmap;
>>>>>>>>>>> __le32 feature; /* defined features */
>>>>>>>>>>>
>>>>>>>>>>> /* defragmentation parameters */
>>>>>>>>>>> @@ -613,6 +614,7 @@ struct f2fs_super_block {
>>>>>>>>>>> /*
>>>>>>>>>>> * For checkpoint
>>>>>>>>>>> */
>>>>>>>>>>> +#define CP_LARGE_NAT_BITMAP_FLAG 0x00000200
>>>>>>>>>>> #define CP_TRIMMED_FLAG 0x00000100
>>>>>>>>>>> #define CP_NAT_BITS_FLAG 0x00000080
>>>>>>>>>>> #define CP_CRC_RECOVERY_FLAG 0x00000040
>>>>>>>>>>> @@ -657,8 +659,8 @@ struct f2fs_checkpoint {
>>>>>>>>>>> unsigned char sit_nat_version_bitmap[1];
>>>>>>>>>>> } __attribute__((packed));
>>>>>>>>>>>
>>>>>>>>>>> -#define MAX_SIT_BITMAP_SIZE_IN_CKPT \
>>>>>>>>>>> - (CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1 - 64)
>>>>>>>>>>> +#define MAX_BITMAP_SIZE_IN_CKPT \
>>>>>>>>>>> + (CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1)
>>>>>>>>>>>
>>>>>>>>>>> /*
>>>>>>>>>>> * For orphan inode management
>>>>>>>>>>> @@ -846,6 +848,8 @@ struct f2fs_node {
>>>>>>>>>>> #define NAT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_nat_entry))
>>>>>>>>>>> #define NAT_BLOCK_OFFSET(start_nid) (start_nid / NAT_ENTRY_PER_BLOCK)
>>>>>>>>>>>
>>>>>>>>>>> +#define DEFAULT_NAT_ENTRY_RATIO 20
>>>>>>>>>>> +
>>>>>>>>>>> #ifdef ANDROID_WINDOWS_HOST
>>>>>>>>>>> #pragma pack(1)
>>>>>>>>>>> #endif
>>>>>>>>>>> diff --git a/lib/libf2fs.c b/lib/libf2fs.c
>>>>>>>>>>> index ffdbccb34627..e8b1842b7391 100644
>>>>>>>>>>> --- a/lib/libf2fs.c
>>>>>>>>>>> +++ b/lib/libf2fs.c
>>>>>>>>>>> @@ -623,6 +623,7 @@ void f2fs_init_configuration(void)
>>>>>>>>>>> c.ro = 0;
>>>>>>>>>>> c.kd = -1;
>>>>>>>>>>> c.dry_run = 0;
>>>>>>>>>>> + c.large_nat_bitmap = 0;
>>>>>>>>>>> c.fixed_time = -1;
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
>>>>>>>>>>> index a13000184300..23eaf40c5962 100644
>>>>>>>>>>> --- a/mkfs/f2fs_format.c
>>>>>>>>>>> +++ b/mkfs/f2fs_format.c
>>>>>>>>>>> @@ -151,13 +151,13 @@ static int f2fs_prepare_super_block(void)
>>>>>>>>>>> u_int32_t log_sectorsize, log_sectors_per_block;
>>>>>>>>>>> u_int32_t log_blocksize, log_blks_per_seg;
>>>>>>>>>>> u_int32_t segment_size_bytes, zone_size_bytes;
>>>>>>>>>>> - u_int32_t sit_segments;
>>>>>>>>>>> + u_int32_t sit_segments, nat_segments;
>>>>>>>>>>> u_int32_t blocks_for_sit, blocks_for_nat, blocks_for_ssa;
>>>>>>>>>>> u_int32_t total_valid_blks_available;
>>>>>>>>>>> u_int64_t zone_align_start_offset, diff;
>>>>>>>>>>> u_int64_t total_meta_zones, total_meta_segments;
>>>>>>>>>>> u_int32_t sit_bitmap_size, max_sit_bitmap_size;
>>>>>>>>>>> - u_int32_t max_nat_bitmap_size, max_nat_segments;
>>>>>>>>>>> + u_int32_t max_nat_bitmap_size;
>>>>>>>>>>> u_int32_t total_zones;
>>>>>>>>>>> u_int32_t next_ino;
>>>>>>>>>>> enum quota_type qtype;
>>>>>>>>>>> @@ -272,7 +272,18 @@ static int f2fs_prepare_super_block(void)
>>>>>>>>>>> blocks_for_nat = SIZE_ALIGN(total_valid_blks_available,
>>>>>>>>>>> NAT_ENTRY_PER_BLOCK);
>>>>>>>>>>>
>>>>>>>>>>> - set_sb(segment_count_nat, SEG_ALIGN(blocks_for_nat));
>>>>>>>>>>> + nat_segments = SEG_ALIGN(blocks_for_nat) *
>>>>>>>>>>> + DEFAULT_NAT_ENTRY_RATIO / 100;
>>>>>>>>>>> +
>>>>>>>>>>> + set_sb(segment_count_nat, nat_segments ? nat_segments : 1);
>>>>>>>>>>> +
>>>>>>>>>>> + max_nat_bitmap_size = (get_sb(segment_count_nat) <<
>>>>>>>>>>> + log_blks_per_seg) / 8;
>>>>>>>>>>> +
>>>>>>>>>>> + set_sb(segment_count_nat, get_sb(segment_count_nat) * 2);
>>>>>>>>>>> +
>>>>>>>>>>> + c.large_nat_bitmap = 1;
>>>>>>>>>>> +
>>>>>>>>>>> /*
>>>>>>>>>>> * The number of node segments should not be exceeded a "Threshold".
>>>>>>>>>>> * This number resizes NAT bitmap area in a CP page.
>>>>>>>>>>> @@ -286,29 +297,16 @@ static int f2fs_prepare_super_block(void)
>>>>>>>>>>> else
>>>>>>>>>>> max_sit_bitmap_size = sit_bitmap_size;
>>>>>>>>>>>
>>>>>>>>>>> - /*
>>>>>>>>>>> - * It should be reserved minimum 1 segment for nat.
>>>>>>>>>>> - * When sit is too large, we should expand cp area. It requires more
>>>>>>>>>>> - * pages for cp.
>>>>>>>>>>> - */
>>>>>>>>>>> - if (max_sit_bitmap_size > MAX_SIT_BITMAP_SIZE_IN_CKPT) {
>>>>>>>>>>> - max_nat_bitmap_size = CHECKSUM_OFFSET -
>>>>>>>>>>> - sizeof(struct f2fs_checkpoint) + 1;
>>>>>>>>>>> - set_sb(cp_payload, F2FS_BLK_ALIGN(max_sit_bitmap_size));
>>>>>>>>>>> + /* use cp_payload if free space of f2fs_checkpoint is not enough */
>>>>>>>>>>> + if (max_sit_bitmap_size + max_nat_bitmap_size >
>>>>>>>>>>> + MAX_BITMAP_SIZE_IN_CKPT) {
>>>>>>>>>>> + u_int32_t diff = max_sit_bitmap_size + max_nat_bitmap_size -
>>>>>>>>>>> + MAX_BITMAP_SIZE_IN_CKPT;
>>>>>>>>>>> + set_sb(cp_payload, F2FS_BLK_ALIGN(diff));
>>>>>>>>>>> } else {
>>>>>>>>>>> - max_nat_bitmap_size =
>>>>>>>>>>> - CHECKSUM_OFFSET - sizeof(struct f2fs_checkpoint) + 1
>>>>>>>>>>> - - max_sit_bitmap_size;
>>>>>>>>>>> set_sb(cp_payload, 0);
>>>>>>>>>>> }
>>>>>>>>>>>
>>>>>>>>>>> - max_nat_segments = (max_nat_bitmap_size * 8) >> log_blks_per_seg;
>>>>>>>>>>> -
>>>>>>>>>>> - if (get_sb(segment_count_nat) > max_nat_segments)
>>>>>>>>>>> - set_sb(segment_count_nat, max_nat_segments);
>>>>>>>>>>> -
>>>>>>>>>>> - set_sb(segment_count_nat, get_sb(segment_count_nat) * 2);
>>>>>>>>>>> -
>>>>>>>>>>> set_sb(ssa_blkaddr, get_sb(nat_blkaddr) + get_sb(segment_count_nat) *
>>>>>>>>>>> c.blks_per_seg);
>>>>>>>>>>>
>>>>>>>>>>> @@ -622,6 +620,9 @@ static int f2fs_write_check_point_pack(void)
>>>>>>>>>>> if (c.trimmed)
>>>>>>>>>>> flags |= CP_TRIMMED_FLAG;
>>>>>>>>>>>
>>>>>>>>>>> + if (c.large_nat_bitmap)
>>>>>>>>>>> + flags |= CP_LARGE_NAT_BITMAP_FLAG;
>>>>>>>>>>> +
>>>>>>>>>>> set_cp(ckpt_flags, flags);
>>>>>>>>>>> set_cp(cp_pack_start_sum, 1 + get_sb(cp_payload));
>>>>>>>>>>> set_cp(valid_node_count, 1 + quota_inum);
>>>>>>>>>>> --
>>>>>>>>>>> 2.15.0.55.gc2ece9dc4de6
>>>>>>>>>>
>>>>>>>>>> .
>>>>>>>>>>
>>>>>>>>
>>>>>>>> .
>>>>>>>>
>>>>>
>>>>> .
>>>>>
>>>
>>> .
>>>
>
> .
>
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