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Diffstat (limited to 'fs/f2fs/segment.c')
-rw-r--r--fs/f2fs/segment.c170
1 files changed, 134 insertions, 36 deletions
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8dee063c833f..a661ac32e829 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -546,9 +546,13 @@ void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
if (test_opt(sbi, DATA_FLUSH)) {
struct blk_plug plug;
+ mutex_lock(&sbi->flush_lock);
+
blk_start_plug(&plug);
f2fs_sync_dirty_inodes(sbi, FILE_INODE);
blk_finish_plug(&plug);
+
+ mutex_unlock(&sbi->flush_lock);
}
f2fs_sync_fs(sbi->sb, true);
stat_inc_bg_cp_count(sbi->stat_info);
@@ -869,11 +873,14 @@ void f2fs_dirty_to_prefree(struct f2fs_sb_info *sbi)
mutex_unlock(&dirty_i->seglist_lock);
}
-int f2fs_disable_cp_again(struct f2fs_sb_info *sbi)
+block_t f2fs_get_unusable_blocks(struct f2fs_sb_info *sbi)
{
+ int ovp_hole_segs =
+ (overprovision_segments(sbi) - reserved_segments(sbi));
+ block_t ovp_holes = ovp_hole_segs << sbi->log_blocks_per_seg;
struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
- block_t ovp = overprovision_segments(sbi) << sbi->log_blocks_per_seg;
block_t holes[2] = {0, 0}; /* DATA and NODE */
+ block_t unusable;
struct seg_entry *se;
unsigned int segno;
@@ -887,10 +894,20 @@ int f2fs_disable_cp_again(struct f2fs_sb_info *sbi)
}
mutex_unlock(&dirty_i->seglist_lock);
- if (holes[DATA] > ovp || holes[NODE] > ovp)
+ unusable = holes[DATA] > holes[NODE] ? holes[DATA] : holes[NODE];
+ if (unusable > ovp_holes)
+ return unusable - ovp_holes;
+ return 0;
+}
+
+int f2fs_disable_cp_again(struct f2fs_sb_info *sbi, block_t unusable)
+{
+ int ovp_hole_segs =
+ (overprovision_segments(sbi) - reserved_segments(sbi));
+ if (unusable > F2FS_OPTION(sbi).unusable_cap)
return -EAGAIN;
if (is_sbi_flag_set(sbi, SBI_CP_DISABLED_QUICK) &&
- dirty_segments(sbi) > overprovision_segments(sbi))
+ dirty_segments(sbi) > ovp_hole_segs)
return -EAGAIN;
return 0;
}
@@ -1480,6 +1497,10 @@ static int __issue_discard_cmd(struct f2fs_sb_info *sbi,
list_for_each_entry_safe(dc, tmp, pend_list, list) {
f2fs_bug_on(sbi, dc->state != D_PREP);
+ if (dpolicy->timeout != 0 &&
+ f2fs_time_over(sbi, dpolicy->timeout))
+ break;
+
if (dpolicy->io_aware && i < dpolicy->io_aware_gran &&
!is_idle(sbi, DISCARD_TIME)) {
io_interrupted = true;
@@ -1740,8 +1761,7 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
devi = f2fs_target_device_index(sbi, blkstart);
if (blkstart < FDEV(devi).start_blk ||
blkstart > FDEV(devi).end_blk) {
- f2fs_msg(sbi->sb, KERN_ERR, "Invalid block %x",
- blkstart);
+ f2fs_err(sbi, "Invalid block %x", blkstart);
return -EIO;
}
blkstart -= FDEV(devi).start_blk;
@@ -1754,10 +1774,9 @@ static int __f2fs_issue_discard_zone(struct f2fs_sb_info *sbi,
if (sector & (bdev_zone_sectors(bdev) - 1) ||
nr_sects != bdev_zone_sectors(bdev)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "(%d) %s: Unaligned zone reset attempted (block %x + %x)",
- devi, sbi->s_ndevs ? FDEV(devi).path: "",
- blkstart, blklen);
+ f2fs_err(sbi, "(%d) %s: Unaligned zone reset attempted (block %x + %x)",
+ devi, sbi->s_ndevs ? FDEV(devi).path : "",
+ blkstart, blklen);
return -EIO;
}
trace_f2fs_issue_reset_zone(bdev, blkstart);
@@ -2121,15 +2140,14 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
mir_exist = f2fs_test_and_set_bit(offset,
se->cur_valid_map_mir);
if (unlikely(exist != mir_exist)) {
- f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error "
- "when setting bitmap, blk:%u, old bit:%d",
- blkaddr, exist);
+ f2fs_err(sbi, "Inconsistent error when setting bitmap, blk:%u, old bit:%d",
+ blkaddr, exist);
f2fs_bug_on(sbi, 1);
}
#endif
if (unlikely(exist)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Bitmap was wrongly set, blk:%u", blkaddr);
+ f2fs_err(sbi, "Bitmap was wrongly set, blk:%u",
+ blkaddr);
f2fs_bug_on(sbi, 1);
se->valid_blocks--;
del = 0;
@@ -2150,15 +2168,14 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
mir_exist = f2fs_test_and_clear_bit(offset,
se->cur_valid_map_mir);
if (unlikely(exist != mir_exist)) {
- f2fs_msg(sbi->sb, KERN_ERR, "Inconsistent error "
- "when clearing bitmap, blk:%u, old bit:%d",
- blkaddr, exist);
+ f2fs_err(sbi, "Inconsistent error when clearing bitmap, blk:%u, old bit:%d",
+ blkaddr, exist);
f2fs_bug_on(sbi, 1);
}
#endif
if (unlikely(!exist)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Bitmap was wrongly cleared, blk:%u", blkaddr);
+ f2fs_err(sbi, "Bitmap was wrongly cleared, blk:%u",
+ blkaddr);
f2fs_bug_on(sbi, 1);
se->valid_blocks++;
del = 0;
@@ -2640,6 +2657,39 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
stat_inc_seg_type(sbi, curseg);
}
+void allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
+ unsigned int start, unsigned int end)
+{
+ struct curseg_info *curseg = CURSEG_I(sbi, type);
+ unsigned int segno;
+
+ down_read(&SM_I(sbi)->curseg_lock);
+ mutex_lock(&curseg->curseg_mutex);
+ down_write(&SIT_I(sbi)->sentry_lock);
+
+ segno = CURSEG_I(sbi, type)->segno;
+ if (segno < start || segno > end)
+ goto unlock;
+
+ if (f2fs_need_SSR(sbi) && get_ssr_segment(sbi, type))
+ change_curseg(sbi, type);
+ else
+ new_curseg(sbi, type, true);
+
+ stat_inc_seg_type(sbi, curseg);
+
+ locate_dirty_segment(sbi, segno);
+unlock:
+ up_write(&SIT_I(sbi)->sentry_lock);
+
+ if (segno != curseg->segno)
+ f2fs_notice(sbi, "For resize: curseg of type %d: %u ==> %u",
+ type, segno, curseg->segno);
+
+ mutex_unlock(&curseg->curseg_mutex);
+ up_read(&SM_I(sbi)->curseg_lock);
+}
+
void f2fs_allocate_new_segments(struct f2fs_sb_info *sbi)
{
struct curseg_info *curseg;
@@ -2772,9 +2822,8 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
goto out;
if (is_sbi_flag_set(sbi, SBI_NEED_FSCK)) {
- f2fs_msg(sbi->sb, KERN_WARNING,
- "Found FS corruption, run fsck to fix.");
- return -EIO;
+ f2fs_warn(sbi, "Found FS corruption, run fsck to fix.");
+ return -EFSCORRUPTED;
}
/* start/end segment number in main_area */
@@ -3197,12 +3246,17 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
if (!IS_DATASEG(get_seg_entry(sbi, segno)->type)) {
set_sbi_flag(sbi, SBI_NEED_FSCK);
- return -EFAULT;
+ f2fs_warn(sbi, "%s: incorrect segment(%u) type, run fsck to fix.",
+ __func__, segno);
+ return -EFSCORRUPTED;
}
stat_inc_inplace_blocks(fio->sbi);
- err = f2fs_submit_page_bio(fio);
+ if (fio->bio)
+ err = f2fs_merge_page_bio(fio);
+ else
+ err = f2fs_submit_page_bio(fio);
if (!err) {
update_device_state(fio);
f2fs_update_iostat(fio->sbi, fio->io_type, F2FS_BLKSIZE);
@@ -3393,6 +3447,11 @@ static int read_compacted_summaries(struct f2fs_sb_info *sbi)
seg_i = CURSEG_I(sbi, i);
segno = le32_to_cpu(ckpt->cur_data_segno[i]);
blk_off = le16_to_cpu(ckpt->cur_data_blkoff[i]);
+ if (blk_off > ENTRIES_IN_SUM) {
+ f2fs_bug_on(sbi, 1);
+ f2fs_put_page(page, 1);
+ return -EFAULT;
+ }
seg_i->next_segno = segno;
reset_curseg(sbi, i, 0);
seg_i->alloc_type = ckpt->alloc_type[i];
@@ -3530,8 +3589,11 @@ static int restore_curseg_summaries(struct f2fs_sb_info *sbi)
/* sanity check for summary blocks */
if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES ||
- sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES)
+ sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) {
+ f2fs_err(sbi, "invalid journal entries nats %u sits %u\n",
+ nats_in_cursum(nat_j), sits_in_cursum(sit_j));
return -EINVAL;
+ }
return 0;
}
@@ -3762,7 +3824,7 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
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;
+ bool to_journal = !is_sbi_flag_set(sbi, SBI_IS_RESIZEFS);
struct seg_entry *se;
down_write(&sit_i->sentry_lock);
@@ -3781,7 +3843,8 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
* entries, remove all entries from journal and add and account
* them in sit entry set.
*/
- if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL))
+ if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL) ||
+ !to_journal)
remove_sits_in_journal(sbi);
/*
@@ -4096,11 +4159,10 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
start = le32_to_cpu(segno_in_journal(journal, i));
if (start >= MAIN_SEGS(sbi)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "Wrong journal entry on segno %u",
- start);
+ f2fs_err(sbi, "Wrong journal entry on segno %u",
+ start);
set_sbi_flag(sbi, SBI_NEED_FSCK);
- err = -EINVAL;
+ err = -EFSCORRUPTED;
break;
}
@@ -4137,11 +4199,10 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
up_read(&curseg->journal_rwsem);
if (!err && total_node_blocks != valid_node_count(sbi)) {
- f2fs_msg(sbi->sb, KERN_ERR,
- "SIT is corrupted node# %u vs %u",
- total_node_blocks, valid_node_count(sbi));
+ f2fs_err(sbi, "SIT is corrupted node# %u vs %u",
+ total_node_blocks, valid_node_count(sbi));
set_sbi_flag(sbi, SBI_NEED_FSCK);
- err = -EINVAL;
+ err = -EFSCORRUPTED;
}
return err;
@@ -4232,6 +4293,39 @@ static int build_dirty_segmap(struct f2fs_sb_info *sbi)
return init_victim_secmap(sbi);
}
+static int sanity_check_curseg(struct f2fs_sb_info *sbi)
+{
+ int i;
+
+ /*
+ * In LFS/SSR curseg, .next_blkoff should point to an unused blkaddr;
+ * In LFS curseg, all blkaddr after .next_blkoff should be unused.
+ */
+ for (i = 0; i < NO_CHECK_TYPE; i++) {
+ struct curseg_info *curseg = CURSEG_I(sbi, i);
+ struct seg_entry *se = get_seg_entry(sbi, curseg->segno);
+ unsigned int blkofs = curseg->next_blkoff;
+
+ if (f2fs_test_bit(blkofs, se->cur_valid_map))
+ goto out;
+
+ if (curseg->alloc_type == SSR)
+ continue;
+
+ for (blkofs += 1; blkofs < sbi->blocks_per_seg; blkofs++) {
+ if (!f2fs_test_bit(blkofs, se->cur_valid_map))
+ continue;
+out:
+ f2fs_err(sbi,
+ "Current segment's next free block offset is inconsistent with bitmap, logtype:%u, segno:%u, type:%u, next_blkoff:%u, blkofs:%u",
+ i, curseg->segno, curseg->alloc_type,
+ curseg->next_blkoff, blkofs);
+ return -EFSCORRUPTED;
+ }
+ }
+ return 0;
+}
+
/*
* Update min, max modified time for cost-benefit GC algorithm
*/
@@ -4327,6 +4421,10 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi)
if (err)
return err;
+ err = sanity_check_curseg(sbi);
+ if (err)
+ return err;
+
init_min_max_mtime(sbi);
return 0;
}