lkml.org 
[lkml]   [2020]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RFC 1/5] f2fs: introduce inmem curseg
Hi Chao,

Do you have any brief design doc to present the idea?

Thanks,

On 06/30, Chao Yu wrote:
> Previous implementation of aligned pinfile allocation will:
> - allocate new segment on cold data log no matter whether last used
> segment is partially used or not, it makes IOs more random;
> - force concurrent cold data/GCed IO going into warm data area, it
> can make a bad effect on hot/cold data separation;
>
> In this patch, we introduce a new type of log named 'inmem curseg',
> the differents from normal curseg is:
> - it reuses existed segment type (CURSEG_XXX_NODE/DATA);
> - it only exists in memory, its segno, blkofs, summary will not b
> persisted into checkpoint area;
>
> With this new feature, we can enhance scalability of log, special
> allocators can be created for purposes:
> - pure lfs allocator for aligned pinfile allocation or file
> defragmentation
> - pure ssr allocator for later feature
>
> So that, let's update aligned pinfile allocation to use this new
> inmem curseg fwk.
>
> Signed-off-by: Chao Yu <yuchao0@huawei.com>
> ---
> fs/f2fs/checkpoint.c | 7 ++-
> fs/f2fs/debug.c | 6 ++-
> fs/f2fs/f2fs.h | 12 +++--
> fs/f2fs/file.c | 3 +-
> fs/f2fs/gc.c | 2 +-
> fs/f2fs/segment.c | 107 ++++++++++++++++++++++++++++++-------------
> fs/f2fs/segment.h | 17 ++++---
> fs/f2fs/super.c | 9 ++--
> 8 files changed, 112 insertions(+), 51 deletions(-)
>
> diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> index 1bb8278a1c4a..644a914af25a 100644
> --- a/fs/f2fs/checkpoint.c
> +++ b/fs/f2fs/checkpoint.c
> @@ -1623,11 +1623,16 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
>
> f2fs_flush_sit_entries(sbi, cpc);
>
> + /* save inmem log status */
> + f2fs_save_inmem_curseg(sbi, CURSEG_COLD_DATA_PINNED);
> +
> err = do_checkpoint(sbi, cpc);
> if (err)
> f2fs_release_discard_addrs(sbi);
> else
> f2fs_clear_prefree_segments(sbi, cpc);
> +
> + f2fs_restore_inmem_curseg(sbi, CURSEG_COLD_DATA_PINNED);
> stop:
> unblock_operations(sbi);
> stat_inc_cp_count(sbi->stat_info);
> @@ -1658,7 +1663,7 @@ void f2fs_init_ino_entry_info(struct f2fs_sb_info *sbi)
> }
>
> sbi->max_orphans = (sbi->blocks_per_seg - F2FS_CP_PACKS -
> - NR_CURSEG_TYPE - __cp_payload(sbi)) *
> + NR_CURSEG_PERSIST_TYPE - __cp_payload(sbi)) *
> F2FS_ORPHANS_PER_BLOCK;
> }
>
> diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
> index 4276c0f79beb..41a91aa8c262 100644
> --- a/fs/f2fs/debug.c
> +++ b/fs/f2fs/debug.c
> @@ -164,7 +164,7 @@ static void update_general_status(struct f2fs_sb_info *sbi)
> * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
> / 2;
> si->util_invalid = 50 - si->util_free - si->util_valid;
> - for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) {
> + for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
> struct curseg_info *curseg = CURSEG_I(sbi, i);
> si->curseg[i] = curseg->segno;
> si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
> @@ -393,6 +393,10 @@ static int stat_show(struct seq_file *s, void *v)
> si->dirty_seg[CURSEG_COLD_NODE],
> si->full_seg[CURSEG_COLD_NODE],
> si->valid_blks[CURSEG_COLD_NODE]);
> + seq_printf(s, " - Pinned file: %8d %8d %8d\n",
> + si->curseg[CURSEG_COLD_DATA_PINNED],
> + si->cursec[CURSEG_COLD_DATA_PINNED],
> + si->curzone[CURSEG_COLD_DATA_PINNED]);
> seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
> si->main_area_segs - si->dirty_count -
> si->prefree_count - si->free_segs,
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 7d6c5f8ce16b..f06c77066284 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -996,7 +996,9 @@ static inline void set_new_dnode(struct dnode_of_data *dn, struct inode *inode,
> */
> #define NR_CURSEG_DATA_TYPE (3)
> #define NR_CURSEG_NODE_TYPE (3)
> -#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
> +#define NR_CURSEG_INMEM_TYPE (1)
> +#define NR_CURSEG_PERSIST_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE)
> +#define NR_CURSEG_TYPE (NR_CURSEG_INMEM_TYPE + NR_CURSEG_PERSIST_TYPE)
>
> enum {
> CURSEG_HOT_DATA = 0, /* directory entry blocks */
> @@ -1005,8 +1007,10 @@ enum {
> CURSEG_HOT_NODE, /* direct node blocks of directory files */
> CURSEG_WARM_NODE, /* direct node blocks of normal files */
> CURSEG_COLD_NODE, /* indirect node blocks */
> - NO_CHECK_TYPE,
> - CURSEG_COLD_DATA_PINNED,/* cold data for pinned file */
> + NR_PERSISTENT_LOG, /* number of persistent log */
> + CURSEG_COLD_DATA_PINNED = NR_PERSISTENT_LOG,
> + /* pinned file that needs consecutive block address */
> + NO_CHECK_TYPE, /* number of persistent & inmem log */
> };
>
> struct flush_cmd {
> @@ -3359,6 +3363,8 @@ block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi);
> int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable);
> void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
> int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
> +void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi, int type);
> +void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi, int type);
> void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
> unsigned int start, unsigned int end);
> void f2fs_allocate_new_segment(struct f2fs_sb_info *sbi, int type);
> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
> index c10e82806c2a..8611ade06018 100644
> --- a/fs/f2fs/file.c
> +++ b/fs/f2fs/file.c
> @@ -1656,13 +1656,14 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
> }
>
> down_write(&sbi->pin_sem);
> - map.m_seg_type = CURSEG_COLD_DATA_PINNED;
>
> f2fs_lock_op(sbi);
> f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
> f2fs_unlock_op(sbi);
>
> + map.m_seg_type = CURSEG_COLD_DATA_PINNED;
> err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
> +
> up_write(&sbi->pin_sem);
>
> done += map.m_len;
> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
> index 3b718da69910..84807abe4e00 100644
> --- a/fs/f2fs/gc.c
> +++ b/fs/f2fs/gc.c
> @@ -1448,7 +1448,7 @@ static int free_segment_range(struct f2fs_sb_info *sbi,
> mutex_unlock(&DIRTY_I(sbi)->seglist_lock);
>
> /* Move out cursegs from the target range */
> - for (type = CURSEG_HOT_DATA; type < NR_CURSEG_TYPE; type++)
> + for (type = CURSEG_HOT_DATA; type < NR_CURSEG_PERSIST_TYPE; type++)
> f2fs_allocate_segment_for_resize(sbi, type, start, end);
>
> /* do GC to move out valid blocks in the range */
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index 5924b3965ae4..863ec6f1fb87 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -1958,7 +1958,7 @@ static void set_prefree_as_free_segments(struct f2fs_sb_info *sbi)
>
> mutex_lock(&dirty_i->seglist_lock);
> for_each_set_bit(segno, dirty_i->dirty_segmap[PRE], MAIN_SEGS(sbi))
> - __set_test_and_free(sbi, segno);
> + __set_test_and_free(sbi, segno, false);
> mutex_unlock(&dirty_i->seglist_lock);
> }
>
> @@ -2496,6 +2496,7 @@ static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified)
> struct curseg_info *curseg = CURSEG_I(sbi, type);
> struct summary_footer *sum_footer;
>
> + curseg->inited = true;
> curseg->segno = curseg->next_segno;
> curseg->zone = GET_ZONE_FROM_SEG(sbi, curseg->segno);
> curseg->next_blkoff = 0;
> @@ -2503,24 +2504,31 @@ static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified)
>
> sum_footer = &(curseg->sum_blk->footer);
> memset(sum_footer, 0, sizeof(struct summary_footer));
> - if (IS_DATASEG(type))
> + if (IS_DATASEG(curseg->seg_type))
> SET_SUM_TYPE(sum_footer, SUM_TYPE_DATA);
> - if (IS_NODESEG(type))
> + if (IS_NODESEG(curseg->seg_type))
> SET_SUM_TYPE(sum_footer, SUM_TYPE_NODE);
> - __set_sit_entry_type(sbi, type, curseg->segno, modified);
> + __set_sit_entry_type(sbi, curseg->seg_type, curseg->segno, modified);
> }
>
> static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type)
> {
> + struct curseg_info *curseg = CURSEG_I(sbi, type);
> +
> /* if segs_per_sec is large than 1, we need to keep original policy. */
> if (__is_large_section(sbi))
> - return CURSEG_I(sbi, type)->segno;
> + return curseg->segno;
> +
> + /* inmem log may not locate on any segment after mount */
> + if (!curseg->inited)
> + return 0;
>
> if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
> return 0;
>
> if (test_opt(sbi, NOHEAP) &&
> - (type == CURSEG_HOT_DATA || IS_NODESEG(type)))
> + (curseg->seg_type == CURSEG_HOT_DATA ||
> + IS_NODESEG(curseg->seg_type)))
> return 0;
>
> if (SIT_I(sbi)->last_victim[ALLOC_NEXT])
> @@ -2530,7 +2538,7 @@ static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type)
> if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
> return 0;
>
> - return CURSEG_I(sbi, type)->segno;
> + return curseg->segno;
> }
>
> /*
> @@ -2540,12 +2548,14 @@ static unsigned int __get_next_segno(struct f2fs_sb_info *sbi, int type)
> static void new_curseg(struct f2fs_sb_info *sbi, int type, bool new_sec)
> {
> struct curseg_info *curseg = CURSEG_I(sbi, type);
> + unsigned short seg_type = curseg->seg_type;
> unsigned int segno = curseg->segno;
> int dir = ALLOC_LEFT;
>
> - write_sum_page(sbi, curseg->sum_blk,
> + if (curseg->inited)
> + write_sum_page(sbi, curseg->sum_blk,
> GET_SUM_BLOCK(sbi, segno));
> - if (type == CURSEG_WARM_DATA || type == CURSEG_COLD_DATA)
> + if (seg_type == CURSEG_WARM_DATA || seg_type == CURSEG_COLD_DATA)
> dir = ALLOC_RIGHT;
>
> if (test_opt(sbi, NOHEAP))
> @@ -2622,6 +2632,43 @@ static void change_curseg(struct f2fs_sb_info *sbi, int type)
> f2fs_put_page(sum_page, 1);
> }
>
> +void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi, int type)
> +{
> + struct curseg_info *curseg = CURSEG_I(sbi, type);
> +
> + mutex_lock(&curseg->curseg_mutex);
> + if (!curseg->inited)
> + goto out;
> +
> + if (get_valid_blocks(sbi, curseg->segno, false)) {
> + write_sum_page(sbi, curseg->sum_blk,
> + GET_SUM_BLOCK(sbi, curseg->segno));
> + } else {
> + mutex_lock(&DIRTY_I(sbi)->seglist_lock);
> + __set_test_and_free(sbi, curseg->segno, true);
> + mutex_unlock(&DIRTY_I(sbi)->seglist_lock);
> + }
> +out:
> + mutex_unlock(&curseg->curseg_mutex);
> +}
> +
> +void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi, int type)
> +{
> + struct curseg_info *curseg = CURSEG_I(sbi, type);
> +
> + mutex_lock(&curseg->curseg_mutex);
> + if (!curseg->inited)
> + goto out;
> + if (get_valid_blocks(sbi, curseg->segno, false))
> + goto out;
> +
> + mutex_lock(&DIRTY_I(sbi)->seglist_lock);
> + __set_test_and_inuse(sbi, curseg->segno);
> + mutex_unlock(&DIRTY_I(sbi)->seglist_lock);
> +out:
> + mutex_unlock(&curseg->curseg_mutex);
> +}
> +
> static int get_ssr_segment(struct f2fs_sb_info *sbi, int type)
> {
> struct curseg_info *curseg = CURSEG_I(sbi, type);
> @@ -2738,11 +2785,15 @@ void __allocate_new_segment(struct f2fs_sb_info *sbi, int type)
> struct curseg_info *curseg = CURSEG_I(sbi, type);
> unsigned int old_segno;
>
> + if (!curseg->inited)
> + goto alloc;
> +
> if (!curseg->next_blkoff &&
> !get_valid_blocks(sbi, curseg->segno, false) &&
> !get_ckpt_valid_blocks(sbi, curseg->segno))
> return;
>
> +alloc:
> old_segno = curseg->segno;
> SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
> locate_dirty_segment(sbi, old_segno);
> @@ -3126,19 +3177,6 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
> {
> struct sit_info *sit_i = SIT_I(sbi);
> struct curseg_info *curseg = CURSEG_I(sbi, type);
> - bool put_pin_sem = false;
> -
> - if (type == CURSEG_COLD_DATA) {
> - /* GC during CURSEG_COLD_DATA_PINNED allocation */
> - if (down_read_trylock(&sbi->pin_sem)) {
> - put_pin_sem = true;
> - } else {
> - type = CURSEG_WARM_DATA;
> - curseg = CURSEG_I(sbi, type);
> - }
> - } else if (type == CURSEG_COLD_DATA_PINNED) {
> - type = CURSEG_COLD_DATA;
> - }
>
> down_read(&SM_I(sbi)->curseg_lock);
>
> @@ -3204,9 +3242,6 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
> mutex_unlock(&curseg->curseg_mutex);
>
> up_read(&SM_I(sbi)->curseg_lock);
> -
> - if (put_pin_sem)
> - up_read(&sbi->pin_sem);
> }
>
> static void update_device_state(struct f2fs_io_info *fio)
> @@ -3574,7 +3609,7 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type)
> blk_off = le16_to_cpu(ckpt->cur_data_blkoff[type -
> CURSEG_HOT_DATA]);
> if (__exist_node_summaries(sbi))
> - blk_addr = sum_blk_addr(sbi, NR_CURSEG_TYPE, type);
> + blk_addr = sum_blk_addr(sbi, NR_CURSEG_PERSIST_TYPE, type);
> else
> blk_addr = sum_blk_addr(sbi, NR_CURSEG_DATA_TYPE, type);
> } else {
> @@ -3652,8 +3687,9 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi)
> }
>
> if (__exist_node_summaries(sbi))
> - f2fs_ra_meta_pages(sbi, sum_blk_addr(sbi, NR_CURSEG_TYPE, type),
> - NR_CURSEG_TYPE - type, META_CP, true);
> + f2fs_ra_meta_pages(sbi,
> + sum_blk_addr(sbi, NR_CURSEG_PERSIST_TYPE, type),
> + NR_CURSEG_PERSIST_TYPE - type, META_CP, true);
>
> for (; type <= CURSEG_COLD_NODE; type++) {
> err = read_normal_summaries(sbi, type);
> @@ -4155,14 +4191,14 @@ static int build_curseg(struct f2fs_sb_info *sbi)
> struct curseg_info *array;
> int i;
>
> - array = f2fs_kzalloc(sbi, array_size(NR_CURSEG_TYPE, sizeof(*array)),
> - GFP_KERNEL);
> + array = f2fs_kzalloc(sbi, array_size(NR_CURSEG_TYPE,
> + sizeof(*array)), GFP_KERNEL);
> if (!array)
> return -ENOMEM;
>
> SM_I(sbi)->curseg_array = array;
>
> - for (i = 0; i < NR_CURSEG_TYPE; i++) {
> + for (i = 0; i < NO_CHECK_TYPE; i++) {
> mutex_init(&array[i].curseg_mutex);
> array[i].sum_blk = f2fs_kzalloc(sbi, PAGE_SIZE, GFP_KERNEL);
> if (!array[i].sum_blk)
> @@ -4172,8 +4208,13 @@ static int build_curseg(struct f2fs_sb_info *sbi)
> sizeof(struct f2fs_journal), GFP_KERNEL);
> if (!array[i].journal)
> return -ENOMEM;
> + if (i < NR_PERSISTENT_LOG)
> + array[i].seg_type = CURSEG_HOT_DATA + i;
> + else if (i == CURSEG_COLD_DATA_PINNED)
> + array[i].seg_type = CURSEG_COLD_DATA;
> array[i].segno = NULL_SEGNO;
> array[i].next_blkoff = 0;
> + array[i].inited = false;
> }
> return restore_curseg_summaries(sbi);
> }
> @@ -4408,7 +4449,7 @@ static int sanity_check_curseg(struct f2fs_sb_info *sbi)
> * In LFS/SSR curseg, .next_blkoff should point to an unused blkaddr;
> * In LFS curseg, all blkaddr after .next_blkoff should be unused.
> */
> - for (i = 0; i < NO_CHECK_TYPE; i++) {
> + for (i = 0; i < NR_PERSISTENT_LOG; i++) {
> struct curseg_info *curseg = CURSEG_I(sbi, i);
> struct seg_entry *se = get_seg_entry(sbi, curseg->segno);
> unsigned int blkofs = curseg->next_blkoff;
> @@ -4637,7 +4678,7 @@ int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi)
> {
> int i, ret;
>
> - for (i = 0; i < NO_CHECK_TYPE; i++) {
> + for (i = 0; i < NR_PERSISTENT_LOG; i++) {
> ret = fix_curseg_write_pointer(sbi, i);
> if (ret)
> return ret;
> diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
> index f261e3e6a69b..8ff261550cbb 100644
> --- a/fs/f2fs/segment.h
> +++ b/fs/f2fs/segment.h
> @@ -22,7 +22,7 @@
> #define GET_R2L_SEGNO(free_i, segno) ((segno) + (free_i)->start_segno)
>
> #define IS_DATASEG(t) ((t) <= CURSEG_COLD_DATA)
> -#define IS_NODESEG(t) ((t) >= CURSEG_HOT_NODE)
> +#define IS_NODESEG(t) ((t) >= CURSEG_HOT_NODE && (t) <= CURSEG_COLD_NODE)
>
> #define IS_HOT(t) ((t) == CURSEG_HOT_NODE || (t) == CURSEG_HOT_DATA)
> #define IS_WARM(t) ((t) == CURSEG_WARM_NODE || (t) == CURSEG_WARM_DATA)
> @@ -34,7 +34,8 @@
> ((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno) || \
> ((seg) == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno) || \
> ((seg) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \
> - ((seg) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno))
> + ((seg) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno) || \
> + ((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA_PINNED)->segno))
>
> #define IS_CURSEC(sbi, secno) \
> (((secno) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno / \
> @@ -48,7 +49,9 @@
> ((secno) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno / \
> (sbi)->segs_per_sec) || \
> ((secno) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno / \
> - (sbi)->segs_per_sec)) \
> + (sbi)->segs_per_sec) || \
> + ((secno) == CURSEG_I(sbi, CURSEG_COLD_DATA_PINNED)->segno / \
> + (sbi)->segs_per_sec))
>
> #define MAIN_BLKADDR(sbi) \
> (SM_I(sbi) ? SM_I(sbi)->main_blkaddr : \
> @@ -288,10 +291,12 @@ struct curseg_info {
> struct rw_semaphore journal_rwsem; /* protect journal area */
> struct f2fs_journal *journal; /* cached journal info */
> unsigned char alloc_type; /* current allocation type */
> + unsigned short seg_type; /* segment type like CURSEG_XXX_TYPE */
> unsigned int segno; /* current segment number */
> unsigned short next_blkoff; /* next block offset to write */
> unsigned int zone; /* current zone number */
> unsigned int next_segno; /* preallocated segment */
> + bool inited; /* indicate inmem log is inited */
> };
>
> struct sit_entry_set {
> @@ -305,8 +310,6 @@ struct sit_entry_set {
> */
> static inline struct curseg_info *CURSEG_I(struct f2fs_sb_info *sbi, int type)
> {
> - if (type == CURSEG_COLD_DATA_PINNED)
> - type = CURSEG_COLD_DATA;
> return (struct curseg_info *)(SM_I(sbi)->curseg_array + type);
> }
>
> @@ -438,7 +441,7 @@ static inline void __set_inuse(struct f2fs_sb_info *sbi,
> }
>
> static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
> - unsigned int segno)
> + unsigned int segno, bool inmem)
> {
> struct free_segmap_info *free_i = FREE_I(sbi);
> unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
> @@ -449,7 +452,7 @@ static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
> if (test_and_clear_bit(segno, free_i->free_segmap)) {
> free_i->free_segments++;
>
> - if (IS_CURSEC(sbi, secno))
> + if (!inmem && IS_CURSEC(sbi, secno))
> goto skip_free;
> next = find_next_bit(free_i->free_segmap,
> start_segno + sbi->segs_per_sec, start_segno);
> diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
> index 80cb7cd358f8..0fefa130585f 100644
> --- a/fs/f2fs/super.c
> +++ b/fs/f2fs/super.c
> @@ -575,7 +575,8 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
> case Opt_active_logs:
> if (args->from && match_int(args, &arg))
> return -EINVAL;
> - if (arg != 2 && arg != 4 && arg != NR_CURSEG_TYPE)
> + if (arg != 2 && arg != 4 &&
> + arg != NR_CURSEG_PERSIST_TYPE)
> return -EINVAL;
> F2FS_OPTION(sbi).active_logs = arg;
> break;
> @@ -981,7 +982,7 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
> }
>
> /* Not pass down write hints if the number of active logs is lesser
> - * than NR_CURSEG_TYPE.
> + * than NR_CURSEG_PERSIST_TYPE.
> */
> if (F2FS_OPTION(sbi).active_logs != NR_CURSEG_TYPE)
> F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
> @@ -1614,7 +1615,7 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
> static void default_options(struct f2fs_sb_info *sbi)
> {
> /* init some FS parameters */
> - F2FS_OPTION(sbi).active_logs = NR_CURSEG_TYPE;
> + F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
> F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
> F2FS_OPTION(sbi).whint_mode = WHINT_MODE_OFF;
> F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
> @@ -2946,7 +2947,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
> cp_payload = __cp_payload(sbi);
> if (cp_pack_start_sum < cp_payload + 1 ||
> cp_pack_start_sum > blocks_per_seg - 1 -
> - NR_CURSEG_TYPE) {
> + NR_CURSEG_PERSIST_TYPE) {
> f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
> cp_pack_start_sum);
> return 1;
> --
> 2.26.2

\
 
 \ /
  Last update: 2020-07-07 05:27    [W:0.168 / U:8.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site