#include "f2fs.h"
#include "segment.h"
#include "node.h"
+#include "trace.h"
#include <trace/events/f2fs.h>
#define __reverse_ffz(x) __reverse_ffs(~(x))
int err;
SetPagePrivate(page);
+ f2fs_trace_pid(page);
new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS);
mutex_unlock(&fi->inmem_lock);
}
-void invalidate_inmem_page(struct inode *inode, struct page *page)
-{
- struct f2fs_inode_info *fi = F2FS_I(inode);
- struct inmem_pages *cur;
-
- mutex_lock(&fi->inmem_lock);
- cur = radix_tree_lookup(&fi->inmem_root, page->index);
- if (cur) {
- radix_tree_delete(&fi->inmem_root, cur->page->index);
- f2fs_put_page(cur->page, 0);
- list_del(&cur->list);
- kmem_cache_free(inmem_entry_slab, cur);
- dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
- }
- mutex_unlock(&fi->inmem_lock);
-}
-
void commit_inmem_pages(struct inode *inode, bool abort)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
bool submit_bio = false;
struct f2fs_io_info fio = {
.type = DATA,
- .rw = WRITE_SYNC,
+ .rw = WRITE_SYNC | REQ_PRIO,
};
/*
* Otherwise, f2fs_gc in f2fs_balance_fs can wait forever until this
* inode becomes free by iget_locked in f2fs_iget.
*/
- if (!abort)
+ if (!abort) {
f2fs_balance_fs(sbi);
-
- f2fs_lock_op(sbi);
+ f2fs_lock_op(sbi);
+ }
mutex_lock(&fi->inmem_lock);
list_for_each_entry_safe(cur, tmp, &fi->inmem_pages, list) {
- lock_page(cur->page);
- if (!abort && cur->page->mapping == inode->i_mapping) {
- f2fs_wait_on_page_writeback(cur->page, DATA);
- if (clear_page_dirty_for_io(cur->page))
- inode_dec_dirty_pages(inode);
- do_write_data_page(cur->page, &fio);
- submit_bio = true;
+ if (!abort) {
+ lock_page(cur->page);
+ if (cur->page->mapping == inode->i_mapping) {
+ f2fs_wait_on_page_writeback(cur->page, DATA);
+ if (clear_page_dirty_for_io(cur->page))
+ inode_dec_dirty_pages(inode);
+ do_write_data_page(cur->page, &fio);
+ submit_bio = true;
+ }
+ f2fs_put_page(cur->page, 1);
+ } else {
+ put_page(cur->page);
}
radix_tree_delete(&fi->inmem_root, cur->page->index);
- f2fs_put_page(cur->page, 1);
list_del(&cur->list);
kmem_cache_free(inmem_entry_slab, cur);
dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES);
}
- if (submit_bio)
- f2fs_submit_merged_bio(sbi, DATA, WRITE);
mutex_unlock(&fi->inmem_lock);
- filemap_fdatawait_range(inode->i_mapping, 0, LLONG_MAX);
- f2fs_unlock_op(sbi);
+ if (!abort) {
+ f2fs_unlock_op(sbi);
+ if (submit_bio)
+ f2fs_submit_merged_bio(sbi, DATA, WRITE);
+ }
}
/*
void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
{
+ /* try to shrink extent cache when there is no enough memory */
+ f2fs_shrink_extent_tree(sbi, EXTENT_CACHE_SHRINK_NUMBER);
+
/* check the # of cached NAT entries and prefree segments */
if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
excess_prefree_segs(sbi) ||
- available_free_memory(sbi, INO_ENTRIES))
+ !available_free_memory(sbi, INO_ENTRIES))
f2fs_sync_fs(sbi->sb, true);
}
struct seg_entry *se = get_seg_entry(sbi, cpc->trim_start);
unsigned long *cur_map = (unsigned long *)se->cur_valid_map;
unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map;
- unsigned long dmap[entries];
+ unsigned long *dmap = SIT_I(sbi)->tmp_map;
unsigned int start = 0, end = -1;
bool force = (cpc->reason == CP_DISCARD);
int i;
- if (!force && !test_opt(sbi, DISCARD))
+ if (!force && (!test_opt(sbi, DISCARD) ||
+ SM_I(sbi)->nr_discards >= SM_I(sbi)->max_discards))
return;
if (force && !se->valid_blocks) {
/* SIT_VBLOCK_MAP_SIZE should be multiple of sizeof(unsigned long) */
for (i = 0; i < entries; i++)
- dmap[i] = ~(cur_map[i] | ckpt_map[i]);
+ dmap[i] = force ? ~ckpt_map[i] :
+ (cur_map[i] ^ ckpt_map[i]) & ckpt_map[i];
while (force || SM_I(sbi)->nr_discards <= SM_I(sbi)->max_discards) {
start = __find_rev_next_bit(dmap, max_blocks, end + 1);
/*
* Calculate the number of current summary pages for writing
*/
-int npages_for_summary_flush(struct f2fs_sb_info *sbi)
+int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra)
{
int valid_sum_count = 0;
int i, sum_in_page;
for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
if (sbi->ckpt->alloc_type[i] == SSR)
valid_sum_count += sbi->blocks_per_seg;
- else
- valid_sum_count += curseg_blkoff(sbi, i);
+ else {
+ if (for_ra)
+ valid_sum_count += le16_to_cpu(
+ F2FS_CKPT(sbi)->cur_data_blkoff[i]);
+ else
+ valid_sum_count += curseg_blkoff(sbi, i);
+ }
}
sum_in_page = (PAGE_CACHE_SIZE - 2 * SUM_JOURNAL_SIZE -
int go_left = 0;
int i;
- write_lock(&free_i->segmap_lock);
+ spin_lock(&free_i->segmap_lock);
if (!new_sec && ((*newseg + 1) % sbi->segs_per_sec)) {
segno = find_next_zero_bit(free_i->free_segmap,
f2fs_bug_on(sbi, test_bit(segno, free_i->free_segmap));
__set_inuse(sbi, segno);
*newseg = segno;
- write_unlock(&free_i->segmap_lock);
+ spin_unlock(&free_i->segmap_lock);
}
static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified)
{
struct seg_entry *se = get_seg_entry(sbi, seg->segno);
int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long);
- unsigned long target_map[entries];
+ unsigned long *target_map = SIT_I(sbi)->tmp_map;
unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map;
unsigned long *cur_map = (unsigned long *)se->cur_valid_map;
int i, pos;
stat_inc_seg_type(sbi, curseg);
}
+static void __allocate_new_segments(struct f2fs_sb_info *sbi, int type)
+{
+ struct curseg_info *curseg = CURSEG_I(sbi, type);
+ unsigned int old_segno;
+
+ old_segno = curseg->segno;
+ SIT_I(sbi)->s_ops->allocate_segment(sbi, type, true);
+ locate_dirty_segment(sbi, old_segno);
+}
+
void allocate_new_segments(struct f2fs_sb_info *sbi)
{
- struct curseg_info *curseg;
- unsigned int old_curseg;
int i;
- for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
- curseg = CURSEG_I(sbi, i);
- old_curseg = curseg->segno;
- SIT_I(sbi)->s_ops->allocate_segment(sbi, i, true);
- locate_dirty_segment(sbi, old_curseg);
- }
+ for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++)
+ __allocate_new_segments(sbi, i);
}
static const struct segment_allocation default_salloc_ops = {
int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
{
- __u64 start = range->start >> sbi->log_blocksize;
- __u64 end = start + (range->len >> sbi->log_blocksize) - 1;
+ __u64 start = F2FS_BYTES_TO_BLK(range->start);
+ __u64 end = start + F2FS_BYTES_TO_BLK(range->len) - 1;
unsigned int start_segno, end_segno;
struct cp_control cpc;
end_segno = (end >= MAX_BLKADDR(sbi)) ? MAIN_SEGS(sbi) - 1 :
GET_SEGNO(sbi, end);
cpc.reason = CP_DISCARD;
- cpc.trim_start = start_segno;
- cpc.trim_end = end_segno;
- cpc.trim_minlen = range->minlen >> sbi->log_blocksize;
+ cpc.trim_minlen = F2FS_BYTES_TO_BLK(range->minlen);
/* do checkpoint to issue discard commands safely */
- mutex_lock(&sbi->gc_mutex);
- write_checkpoint(sbi, &cpc);
- mutex_unlock(&sbi->gc_mutex);
+ for (; start_segno <= end_segno; start_segno = cpc.trim_end + 1) {
+ cpc.trim_start = start_segno;
+ cpc.trim_end = min_t(unsigned int, rounddown(start_segno +
+ BATCHED_TRIM_SEGMENTS(sbi),
+ sbi->segs_per_sec) - 1, end_segno);
+
+ mutex_lock(&sbi->gc_mutex);
+ write_checkpoint(sbi, &cpc);
+ mutex_unlock(&sbi->gc_mutex);
+ }
out:
- range->len = cpc.trimmed << sbi->log_blocksize;
+ range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);
return 0;
}
{
struct sit_info *sit_i = SIT_I(sbi);
struct curseg_info *curseg;
+ bool direct_io = (type == CURSEG_DIRECT_IO);
+
+ type = direct_io ? CURSEG_WARM_DATA : type;
curseg = CURSEG_I(sbi, type);
mutex_lock(&curseg->curseg_mutex);
+ /* direct_io'ed data is aligned to the segment for better performance */
+ if (direct_io && curseg->next_blkoff)
+ __allocate_new_segments(sbi, type);
+
*new_blkaddr = NEXT_FREE_BLKADDR(sbi, curseg);
/*
}
static void do_write_page(struct f2fs_sb_info *sbi, struct page *page,
- block_t old_blkaddr, block_t *new_blkaddr,
- struct f2fs_summary *sum, struct f2fs_io_info *fio)
+ struct f2fs_summary *sum,
+ struct f2fs_io_info *fio)
{
int type = __get_segment_type(page, fio->type);
- allocate_data_block(sbi, page, old_blkaddr, new_blkaddr, sum, type);
+ allocate_data_block(sbi, page, fio->blk_addr, &fio->blk_addr, sum, type);
/* writeout dirty page into bdev */
- f2fs_submit_page_mbio(sbi, page, *new_blkaddr, fio);
+ f2fs_submit_page_mbio(sbi, page, fio);
}
void write_meta_page(struct f2fs_sb_info *sbi, struct page *page)
{
struct f2fs_io_info fio = {
.type = META,
- .rw = WRITE_SYNC | REQ_META | REQ_PRIO
+ .rw = WRITE_SYNC | REQ_META | REQ_PRIO,
+ .blk_addr = page->index,
};
set_page_writeback(page);
- f2fs_submit_page_mbio(sbi, page, page->index, &fio);
+ f2fs_submit_page_mbio(sbi, page, &fio);
}
void write_node_page(struct f2fs_sb_info *sbi, struct page *page,
- struct f2fs_io_info *fio,
- unsigned int nid, block_t old_blkaddr, block_t *new_blkaddr)
+ unsigned int nid, struct f2fs_io_info *fio)
{
struct f2fs_summary sum;
set_summary(&sum, nid, 0, 0);
- do_write_page(sbi, page, old_blkaddr, new_blkaddr, &sum, fio);
+ do_write_page(sbi, page, &sum, fio);
}
void write_data_page(struct page *page, struct dnode_of_data *dn,
- block_t *new_blkaddr, struct f2fs_io_info *fio)
+ struct f2fs_io_info *fio)
{
struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
struct f2fs_summary sum;
f2fs_bug_on(sbi, dn->data_blkaddr == NULL_ADDR);
get_node_info(sbi, dn->nid, &ni);
set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version);
-
- do_write_page(sbi, page, dn->data_blkaddr, new_blkaddr, &sum, fio);
+ do_write_page(sbi, page, &sum, fio);
+ dn->data_blkaddr = fio->blk_addr;
}
-void rewrite_data_page(struct page *page, block_t old_blkaddr,
- struct f2fs_io_info *fio)
+void rewrite_data_page(struct page *page, struct f2fs_io_info *fio)
{
- f2fs_submit_page_mbio(F2FS_P_SB(page), page, old_blkaddr, fio);
+ stat_inc_inplace_blocks(F2FS_P_SB(page));
+ f2fs_submit_page_mbio(F2FS_P_SB(page), page, fio);
}
void recover_data_page(struct f2fs_sb_info *sbi,
segno = le32_to_cpu(ckpt->cur_data_segno[type]);
blk_off = le16_to_cpu(ckpt->cur_data_blkoff[type -
CURSEG_HOT_DATA]);
- if (is_set_ckpt_flags(ckpt, CP_UMOUNT_FLAG))
+ if (__exist_node_summaries(sbi))
blk_addr = sum_blk_addr(sbi, NR_CURSEG_TYPE, type);
else
blk_addr = sum_blk_addr(sbi, NR_CURSEG_DATA_TYPE, type);
CURSEG_HOT_NODE]);
blk_off = le16_to_cpu(ckpt->cur_node_blkoff[type -
CURSEG_HOT_NODE]);
- if (is_set_ckpt_flags(ckpt, CP_UMOUNT_FLAG))
+ if (__exist_node_summaries(sbi))
blk_addr = sum_blk_addr(sbi, NR_CURSEG_NODE_TYPE,
type - CURSEG_HOT_NODE);
else
sum = (struct f2fs_summary_block *)page_address(new);
if (IS_NODESEG(type)) {
- if (is_set_ckpt_flags(ckpt, CP_UMOUNT_FLAG)) {
+ if (__exist_node_summaries(sbi)) {
struct f2fs_summary *ns = &sum->entries[0];
int i;
for (i = 0; i < sbi->blocks_per_seg; i++, ns++) {
int err;
if (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_COMPACT_SUM_FLAG)) {
+ int npages = npages_for_summary_flush(sbi, true);
+
+ if (npages >= 2)
+ ra_meta_pages(sbi, start_sum_block(sbi), npages,
+ META_CP);
+
/* restore for compacted data summary */
if (read_compacted_summaries(sbi))
return -EINVAL;
type = CURSEG_HOT_NODE;
}
+ if (__exist_node_summaries(sbi))
+ ra_meta_pages(sbi, sum_blk_addr(sbi, NR_CURSEG_TYPE, type),
+ NR_CURSEG_TYPE - type, META_CP);
+
for (; type <= CURSEG_COLD_NODE; type++) {
err = read_normal_summaries(sbi, type);
if (err)
void write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk)
{
- if (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG))
- write_normal_summaries(sbi, start_blk, CURSEG_HOT_NODE);
+ write_normal_summaries(sbi, start_blk, CURSEG_HOT_NODE);
}
int lookup_journal_in_cursum(struct f2fs_summary_block *sum, int type,
mutex_lock(&curseg->curseg_mutex);
mutex_lock(&sit_i->sentry_lock);
+ if (!sit_i->dirty_sentries)
+ goto out;
+
/*
* add and account sit entries of dirty bitmap in sit entry
* set temporarily
if (!__has_cursum_space(sum, sit_i->dirty_sentries, SIT_JOURNAL))
remove_sits_in_journal(sbi);
- if (!sit_i->dirty_sentries)
- goto out;
-
/*
* there are two steps to flush sit entries:
* #1, flush sit entries to journal in current cold data summary block.
se = get_seg_entry(sbi, segno);
/* add discard candidates */
- if (SM_I(sbi)->nr_discards < SM_I(sbi)->max_discards) {
+ if (cpc->reason != CP_DISCARD) {
cpc->trim_start = segno;
add_discard_addrs(sbi, cpc);
}
return -ENOMEM;
}
+ sit_i->tmp_map = kzalloc(SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
+ if (!sit_i->tmp_map)
+ return -ENOMEM;
+
if (sbi->segs_per_sec > 1) {
sit_i->sec_entries = vzalloc(MAIN_SECS(sbi) *
sizeof(struct sec_entry));
free_i->start_segno = GET_SEGNO_FROM_SEG0(sbi, MAIN_BLKADDR(sbi));
free_i->free_segments = 0;
free_i->free_sections = 0;
- rwlock_init(&free_i->segmap_lock);
+ spin_lock_init(&free_i->segmap_lock);
return 0;
}
sm_info->nr_discards = 0;
sm_info->max_discards = 0;
+ sm_info->trim_sections = DEF_BATCHED_TRIM_SECTIONS;
+
INIT_LIST_HEAD(&sm_info->sit_entry_set);
if (test_opt(sbi, FLUSH_MERGE) && !f2fs_readonly(sbi->sb)) {
kfree(sit_i->sentries[start].ckpt_valid_map);
}
}
+ kfree(sit_i->tmp_map);
+
vfree(sit_i->sentries);
vfree(sit_i->sec_entries);
kfree(sit_i->dirty_sentries_bitmap);
projects / karo-tx-linux.git / blobdiff