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-rw-r--r--fs/f2fs/checkpoint.c2
-rw-r--r--fs/f2fs/node.c26
-rw-r--r--fs/f2fs/segment.c85
-rw-r--r--fs/f2fs/segment.h2
4 files changed, 77 insertions, 38 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6776803..359a805 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1055,7 +1055,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
if (sb->s_bdev->bd_part)
kbytes_written += BD_PART_WRITTEN(sbi);
- seg_i->sum_blk->journal.info.kbytes_written = cpu_to_le64(kbytes_written);
+ seg_i->journal->info.kbytes_written = cpu_to_le64(kbytes_written);
if (__remain_node_summaries(cpc->reason)) {
write_node_summaries(sbi, start_blk);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 8230e35..94b8016 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -354,7 +354,7 @@ void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
nid_t start_nid = START_NID(nid);
struct f2fs_nat_block *nat_blk;
struct page *page = NULL;
@@ -381,13 +381,13 @@ void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni)
down_write(&nm_i->nat_tree_lock);
/* Check current segment summary */
- mutex_lock(&curseg->curseg_mutex);
+ down_read(&curseg->journal_rwsem);
i = lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0);
if (i >= 0) {
ne = nat_in_journal(journal, i);
node_info_from_raw_nat(ni, &ne);
}
- mutex_unlock(&curseg->curseg_mutex);
+ up_read(&curseg->journal_rwsem);
if (i >= 0)
goto cache;
@@ -1613,7 +1613,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
int i = 0;
nid_t nid = nm_i->next_scan_nid;
@@ -1645,7 +1645,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
nm_i->next_scan_nid = nid;
/* find free nids from current sum_pages */
- mutex_lock(&curseg->curseg_mutex);
+ down_read(&curseg->journal_rwsem);
for (i = 0; i < nats_in_cursum(journal); i++) {
block_t addr;
@@ -1656,7 +1656,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
else
remove_free_nid(nm_i, nid);
}
- mutex_unlock(&curseg->curseg_mutex);
+ up_read(&curseg->journal_rwsem);
up_read(&nm_i->nat_tree_lock);
ra_meta_pages(sbi, NAT_BLOCK_OFFSET(nm_i->next_scan_nid),
@@ -1920,10 +1920,10 @@ static void remove_nats_in_journal(struct f2fs_sb_info *sbi)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
int i;
- mutex_lock(&curseg->curseg_mutex);
+ down_write(&curseg->journal_rwsem);
for (i = 0; i < nats_in_cursum(journal); i++) {
struct nat_entry *ne;
struct f2fs_nat_entry raw_ne;
@@ -1939,7 +1939,7 @@ static void remove_nats_in_journal(struct f2fs_sb_info *sbi)
__set_nat_cache_dirty(nm_i, ne);
}
update_nats_in_cursum(journal, -i);
- mutex_unlock(&curseg->curseg_mutex);
+ up_write(&curseg->journal_rwsem);
}
static void __adjust_nat_entry_set(struct nat_entry_set *nes,
@@ -1964,7 +1964,7 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
struct nat_entry_set *set)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK;
bool to_journal = true;
struct f2fs_nat_block *nat_blk;
@@ -1980,7 +1980,7 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
to_journal = false;
if (to_journal) {
- mutex_lock(&curseg->curseg_mutex);
+ down_write(&curseg->journal_rwsem);
} else {
page = get_next_nat_page(sbi, start_nid);
nat_blk = page_address(page);
@@ -2013,7 +2013,7 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
}
if (to_journal)
- mutex_unlock(&curseg->curseg_mutex);
+ up_write(&curseg->journal_rwsem);
else
f2fs_put_page(page, 1);
@@ -2030,7 +2030,7 @@ void flush_nat_entries(struct f2fs_sb_info *sbi)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_HOT_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
struct nat_entry_set *setvec[SETVEC_SIZE];
struct nat_entry_set *set, *tmp;
unsigned int found;
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index eb7979d..5d0e6e6 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -922,6 +922,31 @@ static void write_sum_page(struct f2fs_sb_info *sbi,
update_meta_page(sbi, (void *)sum_blk, blk_addr);
}
+static void write_current_sum_page(struct f2fs_sb_info *sbi,
+ int type, block_t blk_addr)
+{
+ struct curseg_info *curseg = CURSEG_I(sbi, type);
+ struct page *page = grab_meta_page(sbi, blk_addr);
+ struct f2fs_summary_block *src = curseg->sum_blk;
+ struct f2fs_summary_block *dst;
+
+ dst = (struct f2fs_summary_block *)page_address(page);
+
+ mutex_lock(&curseg->curseg_mutex);
+
+ down_read(&curseg->journal_rwsem);
+ memcpy(&dst->journal, curseg->journal, SUM_JOURNAL_SIZE);
+ up_read(&curseg->journal_rwsem);
+
+ memcpy(dst->entries, src->entries, SUM_ENTRY_SIZE);
+ memcpy(&dst->footer, &src->footer, SUM_FOOTER_SIZE);
+
+ mutex_unlock(&curseg->curseg_mutex);
+
+ set_page_dirty(page);
+ f2fs_put_page(page, 1);
+}
+
static int is_next_segment_free(struct f2fs_sb_info *sbi, int type)
{
struct curseg_info *curseg = CURSEG_I(sbi, type);
@@ -1544,12 +1569,11 @@ static int read_compacted_summaries(struct f2fs_sb_info *sbi)
/* Step 1: restore nat cache */
seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA);
- memcpy(&seg_i->sum_blk->journal.n_nats, kaddr, SUM_JOURNAL_SIZE);
+ memcpy(seg_i->journal, kaddr, SUM_JOURNAL_SIZE);
/* Step 2: restore sit cache */
seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA);
- memcpy(&seg_i->sum_blk->journal.n_sits, kaddr + SUM_JOURNAL_SIZE,
- SUM_JOURNAL_SIZE);
+ memcpy(seg_i->journal, kaddr + SUM_JOURNAL_SIZE, SUM_JOURNAL_SIZE);
offset = 2 * SUM_JOURNAL_SIZE;
/* Step 3: restore summary entries */
@@ -1645,7 +1669,14 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type)
/* set uncompleted segment to curseg */
curseg = CURSEG_I(sbi, type);
mutex_lock(&curseg->curseg_mutex);
- memcpy(curseg->sum_blk, sum, PAGE_CACHE_SIZE);
+
+ /* update journal info */
+ down_write(&curseg->journal_rwsem);
+ memcpy(curseg->journal, &sum->journal, SUM_JOURNAL_SIZE);
+ up_write(&curseg->journal_rwsem);
+
+ memcpy(curseg->sum_blk->entries, sum->entries, SUM_ENTRY_SIZE);
+ memcpy(&curseg->sum_blk->footer, &sum->footer, SUM_FOOTER_SIZE);
curseg->next_segno = segno;
reset_curseg(sbi, type, 0);
curseg->alloc_type = ckpt->alloc_type[type];
@@ -1700,13 +1731,12 @@ static void write_compacted_summaries(struct f2fs_sb_info *sbi, block_t blkaddr)
/* Step 1: write nat cache */
seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA);
- memcpy(kaddr, &seg_i->sum_blk->journal.n_nats, SUM_JOURNAL_SIZE);
+ memcpy(kaddr, seg_i->journal, SUM_JOURNAL_SIZE);
written_size += SUM_JOURNAL_SIZE;
/* Step 2: write sit cache */
seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA);
- memcpy(kaddr + written_size, &seg_i->sum_blk->journal.n_sits,
- SUM_JOURNAL_SIZE);
+ memcpy(kaddr + written_size, seg_i->journal, SUM_JOURNAL_SIZE);
written_size += SUM_JOURNAL_SIZE;
/* Step 3: write summary entries */
@@ -1752,12 +1782,8 @@ static void write_normal_summaries(struct f2fs_sb_info *sbi,
else
end = type + NR_CURSEG_NODE_TYPE;
- for (i = type; i < end; i++) {
- struct curseg_info *sum = CURSEG_I(sbi, i);
- mutex_lock(&sum->curseg_mutex);
- write_sum_page(sbi, sum->sum_blk, blkaddr + (i - type));
- mutex_unlock(&sum->curseg_mutex);
- }
+ for (i = type; i < end; i++)
+ write_current_sum_page(sbi, i, blkaddr + (i - type));
}
void write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk)
@@ -1894,9 +1920,10 @@ static void add_sits_in_set(struct f2fs_sb_info *sbi)
static void remove_sits_in_journal(struct f2fs_sb_info *sbi)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
int i;
+ down_write(&curseg->journal_rwsem);
for (i = 0; i < sits_in_cursum(journal); i++) {
unsigned int segno;
bool dirtied;
@@ -1908,6 +1935,7 @@ static void remove_sits_in_journal(struct f2fs_sb_info *sbi)
add_sit_entry(segno, &SM_I(sbi)->sit_entry_set);
}
update_sits_in_cursum(journal, -i);
+ up_write(&curseg->journal_rwsem);
}
/*
@@ -1919,13 +1947,12 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
struct sit_info *sit_i = SIT_I(sbi);
unsigned long *bitmap = sit_i->dirty_sentries_bitmap;
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
struct sit_entry_set *ses, *tmp;
struct list_head *head = &SM_I(sbi)->sit_entry_set;
bool to_journal = true;
struct seg_entry *se;
- mutex_lock(&curseg->curseg_mutex);
mutex_lock(&sit_i->sentry_lock);
if (!sit_i->dirty_sentries)
@@ -1962,7 +1989,9 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
!__has_cursum_space(journal, ses->entry_cnt, SIT_JOURNAL))
to_journal = false;
- if (!to_journal) {
+ if (to_journal) {
+ down_write(&curseg->journal_rwsem);
+ } else {
page = get_next_sit_page(sbi, start_segno);
raw_sit = page_address(page);
}
@@ -1998,7 +2027,9 @@ void flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
ses->entry_cnt--;
}
- if (!to_journal)
+ if (to_journal)
+ up_write(&curseg->journal_rwsem);
+ else
f2fs_put_page(page, 1);
f2fs_bug_on(sbi, ses->entry_cnt);
@@ -2013,7 +2044,6 @@ out:
add_discard_addrs(sbi, cpc);
}
mutex_unlock(&sit_i->sentry_lock);
- mutex_unlock(&curseg->curseg_mutex);
set_prefree_as_free_segments(sbi);
}
@@ -2145,6 +2175,11 @@ static int build_curseg(struct f2fs_sb_info *sbi)
array[i].sum_blk = kzalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
if (!array[i].sum_blk)
return -ENOMEM;
+ init_rwsem(&array[i].journal_rwsem);
+ array[i].journal = kzalloc(sizeof(struct f2fs_journal),
+ GFP_KERNEL);
+ if (!array[i].journal)
+ return -ENOMEM;
array[i].segno = NULL_SEGNO;
array[i].next_blkoff = 0;
}
@@ -2155,7 +2190,7 @@ static void build_sit_entries(struct f2fs_sb_info *sbi)
{
struct sit_info *sit_i = SIT_I(sbi);
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_COLD_DATA);
- struct f2fs_journal *journal = &curseg->sum_blk->journal;
+ struct f2fs_journal *journal = curseg->journal;
int sit_blk_cnt = SIT_BLK_CNT(sbi);
unsigned int i, start, end;
unsigned int readed, start_blk = 0;
@@ -2173,16 +2208,16 @@ static void build_sit_entries(struct f2fs_sb_info *sbi)
struct f2fs_sit_entry sit;
struct page *page;
- mutex_lock(&curseg->curseg_mutex);
+ down_read(&curseg->journal_rwsem);
for (i = 0; i < sits_in_cursum(journal); i++) {
if (le32_to_cpu(segno_in_journal(journal, i))
== start) {
sit = sit_in_journal(journal, i);
- mutex_unlock(&curseg->curseg_mutex);
+ up_read(&curseg->journal_rwsem);
goto got_it;
}
}
- mutex_unlock(&curseg->curseg_mutex);
+ up_read(&curseg->journal_rwsem);
page = get_current_sit_page(sbi, start);
sit_blk = (struct f2fs_sit_block *)page_address(page);
@@ -2417,8 +2452,10 @@ static void destroy_curseg(struct f2fs_sb_info *sbi)
if (!array)
return;
SM_I(sbi)->curseg_array = NULL;
- for (i = 0; i < NR_CURSEG_TYPE; i++)
+ for (i = 0; i < NR_CURSEG_TYPE; i++) {
kfree(array[i].sum_blk);
+ kfree(array[i].journal);
+ }
kfree(array);
}
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 2f1a422..975c33d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -258,6 +258,8 @@ struct victim_selection {
struct curseg_info {
struct mutex curseg_mutex; /* lock for consistency */
struct f2fs_summary_block *sum_blk; /* cached summary block */
+ struct rw_semaphore journal_rwsem; /* protect journal area */
+ struct f2fs_journal *journal; /* cached journal info */
unsigned char alloc_type; /* current allocation type */
unsigned int segno; /* current segment number */
unsigned short next_blkoff; /* next block offset to write */
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