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X-OriginatorOrg: oppo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Sep 2024 10:06:34.3830 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a53f9e70-c2bd-4e09-5145-08dcd7c993fd X-MS-Exchange-CrossTenant-Id: f1905eb1-c353-41c5-9516-62b4a54b5ee6 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f1905eb1-c353-41c5-9516-62b4a54b5ee6;Ip=[58.252.5.68];Helo=[mail.oppo.com] X-MS-Exchange-CrossTenant-AuthSource: HK3PEPF0000021E.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: JH0PR02MB6544 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: liuderong Remove unused parameter segno from f2fs_usable_segs_in_sec. Reviewed-by: Chao Yu Signed-off-by: liuderong --- fs/f2fs/f2fs.h | 3 +-- fs/f2fs/gc.c | 6 +++--- fs/f2fs/segment.c | 3 +-- fs/f2fs/segment.h | 4 ++-- 4 files changed, 7 insertions(+), 9 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index ac19c61..4dcdcdd 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3759,8 +3759,7 @@ void f2fs_destroy_segment_manager_caches(void); int f2fs_rw_hint_to_seg_type(struct f2fs_sb_info *sbi, enum rw_hint hint); enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_info *sbi, enum page_type type, enum temp_type temp); -unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, - unsigned int segno); +unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi); unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, unsigned int segno); =20 diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 724bbcb..6299639 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -339,7 +339,7 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sb= i, unsigned int segno) unsigned char age =3D 0; unsigned char u; unsigned int i; - unsigned int usable_segs_per_sec =3D f2fs_usable_segs_in_sec(sbi, segno); + unsigned int usable_segs_per_sec =3D f2fs_usable_segs_in_sec(sbi); =20 for (i =3D 0; i < usable_segs_per_sec; i++) mtime +=3D get_seg_entry(sbi, start + i)->mtime; @@ -1707,7 +1707,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sb= i, */ if (f2fs_sb_has_blkzoned(sbi)) end_segno -=3D SEGS_PER_SEC(sbi) - - f2fs_usable_segs_in_sec(sbi, segno); + f2fs_usable_segs_in_sec(sbi); =20 sanity_check_seg_type(sbi, get_seg_entry(sbi, segno)->type); =20 @@ -1881,7 +1881,7 @@ int f2fs_gc(struct f2fs_sb_info *sbi, struct f2fs_gc_= control *gc_control) =20 total_freed +=3D seg_freed; =20 - if (seg_freed =3D=3D f2fs_usable_segs_in_sec(sbi, segno)) { + if (seg_freed =3D=3D f2fs_usable_segs_in_sec(sbi)) { sec_freed++; total_sec_freed++; } diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 78c3198..6627394 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -5381,8 +5381,7 @@ unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_i= nfo *sbi, return BLKS_PER_SEG(sbi); } =20 -unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi, - unsigned int segno) +unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi) { if (f2fs_sb_has_blkzoned(sbi)) return CAP_SEGS_PER_SEC(sbi); diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index bfc01a5..9e61ded 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -430,7 +430,7 @@ static inline void __set_free(struct f2fs_sb_info *sbi,= unsigned int segno) unsigned int secno =3D GET_SEC_FROM_SEG(sbi, segno); unsigned int start_segno =3D GET_SEG_FROM_SEC(sbi, secno); unsigned int next; - unsigned int usable_segs =3D f2fs_usable_segs_in_sec(sbi, segno); + unsigned int usable_segs =3D f2fs_usable_segs_in_sec(sbi); =20 spin_lock(&free_i->segmap_lock); clear_bit(segno, free_i->free_segmap); @@ -464,7 +464,7 @@ static inline void __set_test_and_free(struct f2fs_sb_i= nfo *sbi, unsigned int secno =3D GET_SEC_FROM_SEG(sbi, segno); unsigned int start_segno =3D GET_SEG_FROM_SEC(sbi, secno); unsigned int next; - unsigned int usable_segs =3D f2fs_usable_segs_in_sec(sbi, segno); 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X-OriginatorOrg: oppo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Sep 2024 10:06:35.1588 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: c550fb92-35c2-4564-3dc0-08dcd7c99420 X-MS-Exchange-CrossTenant-Id: f1905eb1-c353-41c5-9516-62b4a54b5ee6 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f1905eb1-c353-41c5-9516-62b4a54b5ee6;Ip=[58.252.5.68];Helo=[mail.oppo.com] X-MS-Exchange-CrossTenant-AuthSource: HK3PEPF0000021F.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SEYPR02MB7458 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: liuderong When segs_per_sec is larger than 1, section may contain invalid segments, mtime should be the average value of each valid blocks, so introduce f2fs_get_section_mtime to record the average mtime of all valid blocks in a section. Signed-off-by: liuderong Reviewed-by: Chao Yu --- fs/f2fs/f2fs.h | 2 ++ fs/f2fs/gc.c | 17 ++++------------- fs/f2fs/segment.c | 35 ++++++++++++++++++++++++++++++----- fs/f2fs/segment.h | 2 ++ 4 files changed, 38 insertions(+), 18 deletions(-) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 4dcdcdd..1c140ff 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -3762,6 +3762,8 @@ enum rw_hint f2fs_io_type_to_rw_hint(struct f2fs_sb_i= nfo *sbi, unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_info *sbi); unsigned int f2fs_usable_blks_in_seg(struct f2fs_sb_info *sbi, unsigned int segno); +unsigned long long f2fs_get_section_mtime(struct f2fs_sb_info *sbi, + unsigned int segno); =20 #define DEF_FRAGMENT_SIZE 4 #define MIN_FRAGMENT_SIZE 1 diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 6299639..9ca73bf 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -332,20 +332,15 @@ static unsigned int check_bg_victims(struct f2fs_sb_i= nfo *sbi) static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int seg= no) { struct sit_info *sit_i =3D SIT_I(sbi); - unsigned int secno =3D GET_SEC_FROM_SEG(sbi, segno); - unsigned int start =3D GET_SEG_FROM_SEC(sbi, secno); unsigned long long mtime =3D 0; unsigned int vblocks; unsigned char age =3D 0; unsigned char u; - unsigned int i; unsigned int usable_segs_per_sec =3D f2fs_usable_segs_in_sec(sbi); =20 - for (i =3D 0; i < usable_segs_per_sec; i++) - mtime +=3D get_seg_entry(sbi, start + i)->mtime; + mtime =3D f2fs_get_section_mtime(sbi, segno); + f2fs_bug_on(sbi, mtime =3D=3D INVALID_MTIME); vblocks =3D get_valid_blocks(sbi, segno, true); - - mtime =3D div_u64(mtime, usable_segs_per_sec); vblocks =3D div_u64(vblocks, usable_segs_per_sec); =20 u =3D BLKS_TO_SEGS(sbi, vblocks * 100); @@ -485,10 +480,7 @@ static void add_victim_entry(struct f2fs_sb_info *sbi, struct victim_sel_policy *p, unsigned int segno) { struct sit_info *sit_i =3D SIT_I(sbi); - unsigned int secno =3D GET_SEC_FROM_SEG(sbi, segno); - unsigned int start =3D GET_SEG_FROM_SEC(sbi, secno); unsigned long long mtime =3D 0; - unsigned int i; =20 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) { if (p->gc_mode =3D=3D GC_AT && @@ -496,9 +488,8 @@ static void add_victim_entry(struct f2fs_sb_info *sbi, return; } =20 - for (i =3D 0; i < SEGS_PER_SEC(sbi); i++) - mtime +=3D get_seg_entry(sbi, start + i)->mtime; - mtime =3D div_u64(mtime, SEGS_PER_SEC(sbi)); + mtime =3D f2fs_get_section_mtime(sbi, segno); + f2fs_bug_on(sbi, mtime =3D=3D INVALID_MTIME); =20 /* Handle if the system time has changed by the user */ if (mtime < sit_i->min_mtime) diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 6627394..717cd15 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -5389,6 +5389,35 @@ unsigned int f2fs_usable_segs_in_sec(struct f2fs_sb_= info *sbi) return SEGS_PER_SEC(sbi); } =20 +unsigned long long f2fs_get_section_mtime(struct f2fs_sb_info *sbi, + unsigned int segno) +{ + unsigned int usable_segs_per_sec =3D f2fs_usable_segs_in_sec(sbi); + unsigned int secno =3D 0, start =3D 0; + unsigned int total_valid_blocks =3D 0; + unsigned long long mtime =3D 0; + unsigned int i =3D 0; + + secno =3D GET_SEC_FROM_SEG(sbi, segno); + start =3D GET_SEG_FROM_SEC(sbi, secno); + + if (!__is_large_section(sbi)) + return get_seg_entry(sbi, start + i)->mtime; + + for (i =3D 0; i < usable_segs_per_sec; i++) { + /* for large section, only check the mtime of valid segments */ + struct seg_entry *se =3D get_seg_entry(sbi, start+i); + + mtime +=3D se->mtime * se->valid_blocks; + total_valid_blocks +=3D se->valid_blocks; + } + + if (total_valid_blocks =3D=3D 0) + return INVALID_MTIME; + + return div_u64(mtime, total_valid_blocks); +} + /* * Update min, max modified time for cost-benefit GC algorithm */ @@ -5402,13 +5431,9 @@ static void init_min_max_mtime(struct f2fs_sb_info *= sbi) sit_i->min_mtime =3D ULLONG_MAX; =20 for (segno =3D 0; segno < MAIN_SEGS(sbi); segno +=3D SEGS_PER_SEC(sbi)) { - unsigned int i; unsigned long long mtime =3D 0; =20 - for (i =3D 0; i < SEGS_PER_SEC(sbi); i++) - mtime +=3D get_seg_entry(sbi, segno + i)->mtime; - - mtime =3D div_u64(mtime, SEGS_PER_SEC(sbi)); + mtime =3D f2fs_get_section_mtime(sbi, segno); =20 if (sit_i->min_mtime > mtime) sit_i->min_mtime =3D mtime; diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 9e61ded..e7ff51d 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -18,6 +18,8 @@ #define F2FS_MIN_SEGMENTS 9 /* SB + 2 (CP + SIT + NAT) + SSA + MAIN */ #define F2FS_MIN_META_SEGMENTS 8 /* SB + 2 (CP + SIT + NAT) + SSA */ =20 +#define INVALID_MTIME ULLONG_MAX /* no valid blocks in a segment/section */ + /* L: Logical segment # in volume, R: Relative segment # in main area */ #define GET_L2R_SEGNO(free_i, segno) ((segno) - (free_i)->start_segno) #define GET_R2L_SEGNO(free_i, segno) ((segno) + (free_i)->start_segno) --=20 2.7.4