xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
複製 0
程式碼 問題管理 合併請求 Actions Packages Projects 版本發佈 Wiki Activity

f2fs: introduce f2fs_journal struct to wrap journal info

瀏覽代碼 
Introduce a new structure f2fs_journal to wrap journal info in struct
f2fs_summary_block for readability.

struct f2fs_journal {
	union {
		__le16 n_nats;
		__le16 n_sits;
	};
	union {
		struct nat_journal nat_j;
		struct sit_journal sit_j;
		struct f2fs_extra_info info;
	};
} __packed;

struct f2fs_summary_block {
	struct f2fs_summary entries[ENTRIES_IN_SUM];
	struct f2fs_journal journal;
	struct summary_footer footer;
} __packed;

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
2016-02-14 18:50:40 +08:00
committed by Jaegeuk Kim
父節點 922ec355f8
當前提交 dfc08a12e4
共有 6 個文件被更改，包括 77 次插入 和 72 次删除
Download Patch File Download Diff File Expand all files Collapse all files

42
fs/f2fs/node.c
查看文件

@@ -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_summary_block *sum = curseg->sum_blk;
struct f2fs_journal *journal = &curseg->sum_blk->journal;
nid_t start_nid = START_NID(nid);
struct f2fs_nat_block *nat_blk;
struct page *page = NULL;
@@ -382,9 +382,9 @@ void get_node_info(struct f2fs_sb_info *sbi, nid_t nid, struct node_info *ni)
/* Check current segment summary */
mutex_lock(&curseg->curseg_mutex);
i = lookup_journal_in_cursum(sum, NAT_JOURNAL, nid, 0);
i = lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0);
if (i >= 0) {
ne = nat_in_journal(sum, i);
ne = nat_in_journal(journal, i);
node_info_from_raw_nat(ni, &ne);
}
mutex_unlock(&curseg->curseg_mutex);
@@ -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_summary_block *sum = curseg->sum_blk;
struct f2fs_journal *journal = &curseg->sum_blk->journal;
int i = 0;
nid_t nid = nm_i->next_scan_nid;
@@ -1646,9 +1646,11 @@ static void build_free_nids(struct f2fs_sb_info *sbi)
/* find free nids from current sum_pages */
mutex_lock(&curseg->curseg_mutex);
for (i = 0; i < nats_in_cursum(sum); i++) {
block_t addr = le32_to_cpu(nat_in_journal(sum, i).block_addr);
nid = le32_to_cpu(nid_in_journal(sum, i));
for (i = 0; i < nats_in_cursum(journal); i++) {
block_t addr;
addr = le32_to_cpu(nat_in_journal(journal, i).block_addr);
nid = le32_to_cpu(nid_in_journal(journal, i));
if (addr == NULL_ADDR)
add_free_nid(sbi, nid, true);
else
@@ -1918,16 +1920,16 @@ 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_summary_block *sum = curseg->sum_blk;
struct f2fs_journal *journal = &curseg->sum_blk->journal;
int i;
mutex_lock(&curseg->curseg_mutex);
for (i = 0; i < nats_in_cursum(sum); i++) {
for (i = 0; i < nats_in_cursum(journal); i++) {
struct nat_entry *ne;
struct f2fs_nat_entry raw_ne;
nid_t nid = le32_to_cpu(nid_in_journal(sum, i));
nid_t nid = le32_to_cpu(nid_in_journal(journal, i));
raw_ne = nat_in_journal(sum, i);
raw_ne = nat_in_journal(journal, i);
ne = __lookup_nat_cache(nm_i, nid);
if (!ne) {
@@ -1936,7 +1938,7 @@ static void remove_nats_in_journal(struct f2fs_sb_info *sbi)
}
__set_nat_cache_dirty(nm_i, ne);
}
update_nats_in_cursum(sum, -i);
update_nats_in_cursum(journal, -i);
mutex_unlock(&curseg->curseg_mutex);
}
@@ -1962,7 +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_summary_block *sum = curseg->sum_blk;
struct f2fs_journal *journal = &curseg->sum_blk->journal;
nid_t start_nid = set->set * NAT_ENTRY_PER_BLOCK;
bool to_journal = true;
struct f2fs_nat_block *nat_blk;
@@ -1974,7 +1976,7 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
* #1, flush nat entries to journal in current hot data summary block.
* #2, flush nat entries to nat page.
*/
if (!__has_cursum_space(sum, set->entry_cnt, NAT_JOURNAL))
if (!__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL))
to_journal = false;
if (to_journal) {
@@ -1995,11 +1997,11 @@ static void __flush_nat_entry_set(struct f2fs_sb_info *sbi,
continue;
if (to_journal) {
offset = lookup_journal_in_cursum(sum,
offset = lookup_journal_in_cursum(journal,
NAT_JOURNAL, nid, 1);
f2fs_bug_on(sbi, offset < 0);
raw_ne = &nat_in_journal(sum, offset);
nid_in_journal(sum, offset) = cpu_to_le32(nid);
raw_ne = &nat_in_journal(journal, offset);
nid_in_journal(journal, offset) = cpu_to_le32(nid);
} else {
raw_ne = &nat_blk->entries[nid - start_nid];
}
@@ -2028,7 +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_summary_block *sum = curseg->sum_blk;
struct f2fs_journal *journal = &curseg->sum_blk->journal;
struct nat_entry_set *setvec[SETVEC_SIZE];
struct nat_entry_set *set, *tmp;
unsigned int found;
@@ -2045,7 +2047,7 @@ void flush_nat_entries(struct f2fs_sb_info *sbi)
* entries, remove all entries from journal and merge them
* into nat entry set.
*/
if (!__has_cursum_space(sum, nm_i->dirty_nat_cnt, NAT_JOURNAL))
if (!__has_cursum_space(journal, nm_i->dirty_nat_cnt, NAT_JOURNAL))
remove_nats_in_journal(sbi);
while ((found = __gang_lookup_nat_set(nm_i,
@@ -2054,7 +2056,7 @@ void flush_nat_entries(struct f2fs_sb_info *sbi)
set_idx = setvec[found - 1]->set + 1;
for (idx = 0; idx < found; idx++)
__adjust_nat_entry_set(setvec[idx], &sets,
MAX_NAT_JENTRIES(sum));
MAX_NAT_JENTRIES(journal));
}
/* flush dirty nats in nat entry set */