| Message ID | 20240802115120.362902-10-yi.zhang@huaweicloud.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | ext4: simplify the counting and management of delalloc reserved blocks | expand |
On Fri 02-08-24 19:51:19, Zhang Yi wrote: > From: Zhang Yi <yi.zhang@huawei.com> > > Since we don't add delayed flag in unwritten extents, so there is no > difference between ext4_es_is_delayed() and ext4_es_is_delonly(), > just drop ext4_es_is_delonly(). > > Signed-off-by: Zhang Yi <yi.zhang@huawei.com> Looks good. But please also add assertion when inserting extent into status tree that only one of EXTENT_STATUS_WRITTEN, EXTENT_STATUS_UNWRITTEN, EXTENT_STATUS_DELAYED, and EXTENT_STATUS_HOLE is set. Also perhaps add comment to EXTENT_STATUS_DELAYED (and other) definition that these states are exclusive. Thanks! Honza > --- > fs/ext4/extents_status.c | 18 +++++++++--------- > fs/ext4/extents_status.h | 5 ----- > fs/ext4/inode.c | 4 ++-- > 3 files changed, 11 insertions(+), 16 deletions(-) > > diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c > index e482ac818317..5fb0a02405ba 100644 > --- a/fs/ext4/extents_status.c > +++ b/fs/ext4/extents_status.c > @@ -563,8 +563,8 @@ static int ext4_es_can_be_merged(struct extent_status *es1, > if (ext4_es_is_hole(es1)) > return 1; > > - /* we need to check delayed extent is without unwritten status */ > - if (ext4_es_is_delayed(es1) && !ext4_es_is_unwritten(es1)) > + /* we need to check delayed extent */ > + if (ext4_es_is_delayed(es1)) > return 1; > > return 0; > @@ -1139,7 +1139,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len, > struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); > ext4_lblk_t i, end, nclu; > > - if (!ext4_es_is_delonly(es)) > + if (!ext4_es_is_delayed(es)) > return; > > WARN_ON(len <= 0); > @@ -1291,7 +1291,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, > es = rc->left_es; > while (es && ext4_es_end(es) >= > EXT4_LBLK_CMASK(sbi, rc->first_do_lblk)) { > - if (ext4_es_is_delonly(es)) { > + if (ext4_es_is_delayed(es)) { > rc->ndelonly_cluster--; > left_delonly = true; > break; > @@ -1311,7 +1311,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, > } > while (es && es->es_lblk <= > EXT4_LBLK_CFILL(sbi, rc->last_do_lblk)) { > - if (ext4_es_is_delonly(es)) { > + if (ext4_es_is_delayed(es)) { > rc->ndelonly_cluster--; > right_delonly = true; > break; > @@ -2239,7 +2239,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, > if (EXT4_B2C(sbi, lblk) == EXT4_B2C(sbi, end)) { > first = EXT4_LBLK_CMASK(sbi, lblk); > if (first != lblk) > - f_del = __es_scan_range(inode, &ext4_es_is_delonly, > + f_del = __es_scan_range(inode, &ext4_es_is_delayed, > first, lblk - 1); > if (f_del) { > ret = __insert_pending(inode, first, prealloc); > @@ -2251,7 +2251,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, > sbi->s_cluster_ratio - 1; > if (last != end) > l_del = __es_scan_range(inode, > - &ext4_es_is_delonly, > + &ext4_es_is_delayed, > end + 1, last); > if (l_del) { > ret = __insert_pending(inode, last, prealloc); > @@ -2264,7 +2264,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, > } else { > first = EXT4_LBLK_CMASK(sbi, lblk); > if (first != lblk) > - f_del = __es_scan_range(inode, &ext4_es_is_delonly, > + f_del = __es_scan_range(inode, &ext4_es_is_delayed, > first, lblk - 1); > if (f_del) { > ret = __insert_pending(inode, first, prealloc); > @@ -2276,7 +2276,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, > > last = EXT4_LBLK_CMASK(sbi, end) + sbi->s_cluster_ratio - 1; > if (last != end) > - l_del = __es_scan_range(inode, &ext4_es_is_delonly, > + l_del = __es_scan_range(inode, &ext4_es_is_delayed, > end + 1, last); > if (l_del) { > ret = __insert_pending(inode, last, prealloc); > diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h > index 5b49cb3b9aff..e484c60e55e3 100644 > --- a/fs/ext4/extents_status.h > +++ b/fs/ext4/extents_status.h > @@ -184,11 +184,6 @@ static inline int ext4_es_is_mapped(struct extent_status *es) > return (ext4_es_is_written(es) || ext4_es_is_unwritten(es)); > } > > -static inline int ext4_es_is_delonly(struct extent_status *es) > -{ > - return (ext4_es_is_delayed(es) && !ext4_es_is_unwritten(es)); > -} > - > static inline void ext4_es_set_referenced(struct extent_status *es) > { > es->es_pblk |= ((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT; > diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c > index 8bd65a45a26a..2b301c165468 100644 > --- a/fs/ext4/inode.c > +++ b/fs/ext4/inode.c > @@ -1645,7 +1645,7 @@ static int ext4_clu_alloc_state(struct inode *inode, ext4_lblk_t lblk) > int ret; > > /* Has delalloc reservation? */ > - if (ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) > + if (ext4_es_scan_clu(inode, &ext4_es_is_delayed, lblk)) > return 1; > > /* Already been allocated? */ > @@ -1766,7 +1766,7 @@ static int ext4_da_map_blocks(struct inode *inode, struct ext4_map_blocks *map) > * Delayed extent could be allocated by fallocate. > * So we need to check it. > */ > - if (ext4_es_is_delonly(&es)) { > + if (ext4_es_is_delayed(&es)) { > map->m_flags |= EXT4_MAP_DELAYED; > return 0; > } > -- > 2.39.2 >
On 2024/8/8 1:48, Jan Kara wrote: > On Fri 02-08-24 19:51:19, Zhang Yi wrote: >> From: Zhang Yi <yi.zhang@huawei.com> >> >> Since we don't add delayed flag in unwritten extents, so there is no >> difference between ext4_es_is_delayed() and ext4_es_is_delonly(), >> just drop ext4_es_is_delonly(). >> >> Signed-off-by: Zhang Yi <yi.zhang@huawei.com> > > Looks good. But please also add assertion when inserting extent into status > tree that only one of EXTENT_STATUS_WRITTEN, EXTENT_STATUS_UNWRITTEN, > EXTENT_STATUS_DELAYED, and EXTENT_STATUS_HOLE is set. > Also perhaps add comment to EXTENT_STATUS_DELAYED (and other) definition that > these states are exclusive. Thanks! > Sure, will do. Thanks for the suggestion, Yi. > >> --- >> fs/ext4/extents_status.c | 18 +++++++++--------- >> fs/ext4/extents_status.h | 5 ----- >> fs/ext4/inode.c | 4 ++-- >> 3 files changed, 11 insertions(+), 16 deletions(-) >> >> diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c >> index e482ac818317..5fb0a02405ba 100644 >> --- a/fs/ext4/extents_status.c >> +++ b/fs/ext4/extents_status.c >> @@ -563,8 +563,8 @@ static int ext4_es_can_be_merged(struct extent_status *es1, >> if (ext4_es_is_hole(es1)) >> return 1; >> >> - /* we need to check delayed extent is without unwritten status */ >> - if (ext4_es_is_delayed(es1) && !ext4_es_is_unwritten(es1)) >> + /* we need to check delayed extent */ >> + if (ext4_es_is_delayed(es1)) >> return 1; >> >> return 0; >> @@ -1139,7 +1139,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len, >> struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); >> ext4_lblk_t i, end, nclu; >> >> - if (!ext4_es_is_delonly(es)) >> + if (!ext4_es_is_delayed(es)) >> return; >> >> WARN_ON(len <= 0); >> @@ -1291,7 +1291,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, >> es = rc->left_es; >> while (es && ext4_es_end(es) >= >> EXT4_LBLK_CMASK(sbi, rc->first_do_lblk)) { >> - if (ext4_es_is_delonly(es)) { >> + if (ext4_es_is_delayed(es)) { >> rc->ndelonly_cluster--; >> left_delonly = true; >> break; >> @@ -1311,7 +1311,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, >> } >> while (es && es->es_lblk <= >> EXT4_LBLK_CFILL(sbi, rc->last_do_lblk)) { >> - if (ext4_es_is_delonly(es)) { >> + if (ext4_es_is_delayed(es)) { >> rc->ndelonly_cluster--; >> right_delonly = true; >> break; >> @@ -2239,7 +2239,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, >> if (EXT4_B2C(sbi, lblk) == EXT4_B2C(sbi, end)) { >> first = EXT4_LBLK_CMASK(sbi, lblk); >> if (first != lblk) >> - f_del = __es_scan_range(inode, &ext4_es_is_delonly, >> + f_del = __es_scan_range(inode, &ext4_es_is_delayed, >> first, lblk - 1); >> if (f_del) { >> ret = __insert_pending(inode, first, prealloc); >> @@ -2251,7 +2251,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, >> sbi->s_cluster_ratio - 1; >> if (last != end) >> l_del = __es_scan_range(inode, >> - &ext4_es_is_delonly, >> + &ext4_es_is_delayed, >> end + 1, last); >> if (l_del) { >> ret = __insert_pending(inode, last, prealloc); >> @@ -2264,7 +2264,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, >> } else { >> first = EXT4_LBLK_CMASK(sbi, lblk); >> if (first != lblk) >> - f_del = __es_scan_range(inode, &ext4_es_is_delonly, >> + f_del = __es_scan_range(inode, &ext4_es_is_delayed, >> first, lblk - 1); >> if (f_del) { >> ret = __insert_pending(inode, first, prealloc); >> @@ -2276,7 +2276,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, >> >> last = EXT4_LBLK_CMASK(sbi, end) + sbi->s_cluster_ratio - 1; >> if (last != end) >> - l_del = __es_scan_range(inode, &ext4_es_is_delonly, >> + l_del = __es_scan_range(inode, &ext4_es_is_delayed, >> end + 1, last); >> if (l_del) { >> ret = __insert_pending(inode, last, prealloc); >> diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h >> index 5b49cb3b9aff..e484c60e55e3 100644 >> --- a/fs/ext4/extents_status.h >> +++ b/fs/ext4/extents_status.h >> @@ -184,11 +184,6 @@ static inline int ext4_es_is_mapped(struct extent_status *es) >> return (ext4_es_is_written(es) || ext4_es_is_unwritten(es)); >> } >> >> -static inline int ext4_es_is_delonly(struct extent_status *es) >> -{ >> - return (ext4_es_is_delayed(es) && !ext4_es_is_unwritten(es)); >> -} >> - >> static inline void ext4_es_set_referenced(struct extent_status *es) >> { >> es->es_pblk |= ((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT; >> diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c >> index 8bd65a45a26a..2b301c165468 100644 >> --- a/fs/ext4/inode.c >> +++ b/fs/ext4/inode.c >> @@ -1645,7 +1645,7 @@ static int ext4_clu_alloc_state(struct inode *inode, ext4_lblk_t lblk) >> int ret; >> >> /* Has delalloc reservation? */ >> - if (ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) >> + if (ext4_es_scan_clu(inode, &ext4_es_is_delayed, lblk)) >> return 1; >> >> /* Already been allocated? */ >> @@ -1766,7 +1766,7 @@ static int ext4_da_map_blocks(struct inode *inode, struct ext4_map_blocks *map) >> * Delayed extent could be allocated by fallocate. >> * So we need to check it. >> */ >> - if (ext4_es_is_delonly(&es)) { >> + if (ext4_es_is_delayed(&es)) { >> map->m_flags |= EXT4_MAP_DELAYED; >> return 0; >> } >> -- >> 2.39.2 >>
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c index e482ac818317..5fb0a02405ba 100644 --- a/fs/ext4/extents_status.c +++ b/fs/ext4/extents_status.c @@ -563,8 +563,8 @@ static int ext4_es_can_be_merged(struct extent_status *es1, if (ext4_es_is_hole(es1)) return 1; - /* we need to check delayed extent is without unwritten status */ - if (ext4_es_is_delayed(es1) && !ext4_es_is_unwritten(es1)) + /* we need to check delayed extent */ + if (ext4_es_is_delayed(es1)) return 1; return 0; @@ -1139,7 +1139,7 @@ static void count_rsvd(struct inode *inode, ext4_lblk_t lblk, long len, struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); ext4_lblk_t i, end, nclu; - if (!ext4_es_is_delonly(es)) + if (!ext4_es_is_delayed(es)) return; WARN_ON(len <= 0); @@ -1291,7 +1291,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, es = rc->left_es; while (es && ext4_es_end(es) >= EXT4_LBLK_CMASK(sbi, rc->first_do_lblk)) { - if (ext4_es_is_delonly(es)) { + if (ext4_es_is_delayed(es)) { rc->ndelonly_cluster--; left_delonly = true; break; @@ -1311,7 +1311,7 @@ static unsigned int get_rsvd(struct inode *inode, ext4_lblk_t end, } while (es && es->es_lblk <= EXT4_LBLK_CFILL(sbi, rc->last_do_lblk)) { - if (ext4_es_is_delonly(es)) { + if (ext4_es_is_delayed(es)) { rc->ndelonly_cluster--; right_delonly = true; break; @@ -2239,7 +2239,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, if (EXT4_B2C(sbi, lblk) == EXT4_B2C(sbi, end)) { first = EXT4_LBLK_CMASK(sbi, lblk); if (first != lblk) - f_del = __es_scan_range(inode, &ext4_es_is_delonly, + f_del = __es_scan_range(inode, &ext4_es_is_delayed, first, lblk - 1); if (f_del) { ret = __insert_pending(inode, first, prealloc); @@ -2251,7 +2251,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, sbi->s_cluster_ratio - 1; if (last != end) l_del = __es_scan_range(inode, - &ext4_es_is_delonly, + &ext4_es_is_delayed, end + 1, last); if (l_del) { ret = __insert_pending(inode, last, prealloc); @@ -2264,7 +2264,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, } else { first = EXT4_LBLK_CMASK(sbi, lblk); if (first != lblk) - f_del = __es_scan_range(inode, &ext4_es_is_delonly, + f_del = __es_scan_range(inode, &ext4_es_is_delayed, first, lblk - 1); if (f_del) { ret = __insert_pending(inode, first, prealloc); @@ -2276,7 +2276,7 @@ static int __revise_pending(struct inode *inode, ext4_lblk_t lblk, last = EXT4_LBLK_CMASK(sbi, end) + sbi->s_cluster_ratio - 1; if (last != end) - l_del = __es_scan_range(inode, &ext4_es_is_delonly, + l_del = __es_scan_range(inode, &ext4_es_is_delayed, end + 1, last); if (l_del) { ret = __insert_pending(inode, last, prealloc); diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h index 5b49cb3b9aff..e484c60e55e3 100644 --- a/fs/ext4/extents_status.h +++ b/fs/ext4/extents_status.h @@ -184,11 +184,6 @@ static inline int ext4_es_is_mapped(struct extent_status *es) return (ext4_es_is_written(es) || ext4_es_is_unwritten(es)); } -static inline int ext4_es_is_delonly(struct extent_status *es) -{ - return (ext4_es_is_delayed(es) && !ext4_es_is_unwritten(es)); -} - static inline void ext4_es_set_referenced(struct extent_status *es) { es->es_pblk |= ((ext4_fsblk_t)EXTENT_STATUS_REFERENCED) << ES_SHIFT; diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 8bd65a45a26a..2b301c165468 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1645,7 +1645,7 @@ static int ext4_clu_alloc_state(struct inode *inode, ext4_lblk_t lblk) int ret; /* Has delalloc reservation? */ - if (ext4_es_scan_clu(inode, &ext4_es_is_delonly, lblk)) + if (ext4_es_scan_clu(inode, &ext4_es_is_delayed, lblk)) return 1; /* Already been allocated? */ @@ -1766,7 +1766,7 @@ static int ext4_da_map_blocks(struct inode *inode, struct ext4_map_blocks *map) * Delayed extent could be allocated by fallocate. * So we need to check it. */ - if (ext4_es_is_delonly(&es)) { + if (ext4_es_is_delayed(&es)) { map->m_flags |= EXT4_MAP_DELAYED; return 0; }