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Message-ID: <20231018223925.2135987-1-daeho43@gmail.com>
Date: Wed, 18 Oct 2023 15:39:25 -0700
From: Daeho Jeong <daeho43@...il.com>
To: linux-kernel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net, kernel-team@...roid.com
Cc: Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH] f2fs-tools: make six open zone check resilient
From: Daeho Jeong <daehojeong@...gle.com>
We need to make sure to finish all the zones except six open zones. In
a case of that the previous mount wasn't successfully unmounted, we have
to change all the current segments.
Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
fsck/fsck.c | 87 +++++++++++++++++++--------------------------
include/f2fs_fs.h | 1 +
lib/libf2fs_zoned.c | 28 +++++++++++++++
3 files changed, 65 insertions(+), 51 deletions(-)
diff --git a/fsck/fsck.c b/fsck/fsck.c
index 99cface..890b536 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -2587,10 +2587,9 @@ static int check_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
struct curseg_info *curseg = CURSEG_I(sbi, type);
struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
struct blk_zone blkz;
- block_t cs_block, wp_block, zone_last_vblock;
+ block_t cs_block, wp_block;
uint64_t cs_sector, wp_sector;
int i, ret;
- unsigned int zone_segno;
int log_sectors_per_block = sbi->log_blocksize - SECTOR_SHIFT;
/* get the device the curseg points to */
@@ -2624,49 +2623,28 @@ static int check_curseg_write_pointer(struct f2fs_sb_info *sbi, int type)
(blk_zone_wp_sector(&blkz) >> log_sectors_per_block);
wp_sector = blk_zone_wp_sector(&blkz);
- if (cs_sector == wp_sector)
- return 0;
-
- if (cs_sector > wp_sector) {
+ if (cs_sector == wp_sector) {
+ if (is_set_ckpt_flags(F2FS_CKPT(sbi), CP_UMOUNT_FLAG))
+ return 0;
+ MSG(0, "Correct write pointer. But, we can't trust it, "
+ "since the previous mount wasn't safely unmounted: "
+ "curseg %d[0x%x,0x%x]\n",
+ type, curseg->segno, curseg->next_blkoff);
+ } else if (cs_sector > wp_sector) {
MSG(0, "Inconsistent write pointer with curseg %d: "
"curseg %d[0x%x,0x%x] > wp[0x%x,0x%x]\n",
type, type, curseg->segno, curseg->next_blkoff,
+ GET_SEGNO(sbi, wp_block),
+ OFFSET_IN_SEG(sbi, wp_block));
+ if (!c.fix_on)
+ fsck->chk.wp_inconsistent_zones++;
+ } else {
+ MSG(0, "Write pointer goes advance from curseg %d: "
+ "curseg %d[0x%x,0x%x] wp[0x%x,0x%x]\n",
+ type, type, curseg->segno, curseg->next_blkoff,
GET_SEGNO(sbi, wp_block), OFFSET_IN_SEG(sbi, wp_block));
- fsck->chk.wp_inconsistent_zones++;
- return -EINVAL;
- }
-
- MSG(0, "Write pointer goes advance from curseg %d: "
- "curseg %d[0x%x,0x%x] wp[0x%x,0x%x]\n",
- type, type, curseg->segno, curseg->next_blkoff,
- GET_SEGNO(sbi, wp_block), OFFSET_IN_SEG(sbi, wp_block));
-
- zone_segno = GET_SEG_FROM_SEC(sbi,
- GET_SEC_FROM_SEG(sbi, curseg->segno));
- zone_last_vblock = START_BLOCK(sbi, zone_segno) +
- last_vblk_off_in_zone(sbi, zone_segno);
-
- /*
- * If valid blocks exist between the curseg position and the write
- * pointer, they are fsync data. This is not an error to fix. Leave it
- * for kernel to recover later.
- * If valid blocks exist between the curseg's zone start and the curseg
- * position, or if there is no valid block in the curseg's zone, fix
- * the inconsistency between the curseg and the writ pointer.
- * Of Note is that if there is no valid block in the curseg's zone,
- * last_vblk_off_in_zone() returns -1 and zone_last_vblock is always
- * smaller than cs_block.
- */
- if (cs_block <= zone_last_vblock && zone_last_vblock < wp_block) {
- MSG(0, "Curseg has fsync data: curseg %d[0x%x,0x%x] "
- "last valid block in zone[0x%x,0x%x]\n",
- type, curseg->segno, curseg->next_blkoff,
- GET_SEGNO(sbi, zone_last_vblock),
- OFFSET_IN_SEG(sbi, zone_last_vblock));
- return 0;
}
- fsck->chk.wp_inconsistent_zones++;
return -EINVAL;
}
@@ -3155,10 +3133,8 @@ static int chk_and_fix_wp_with_sit(int UNUSED(i), void *blkzone, void *opaque)
struct f2fs_fsck *fsck = F2FS_FSCK(sbi);
block_t zone_block, wp_block, wp_blkoff;
unsigned int zone_segno, wp_segno;
- struct curseg_info *cs;
- int cs_index, ret, last_valid_blkoff;
+ int ret, last_valid_blkoff;
int log_sectors_per_block = sbi->log_blocksize - SECTOR_SHIFT;
- unsigned int segs_per_zone = sbi->segs_per_sec * sbi->secs_per_zone;
if (blk_zone_conv(blkz))
return 0;
@@ -3174,14 +3150,6 @@ static int chk_and_fix_wp_with_sit(int UNUSED(i), void *blkzone, void *opaque)
wp_segno = GET_SEGNO(sbi, wp_block);
wp_blkoff = wp_block - START_BLOCK(sbi, wp_segno);
- /* if a curseg points to the zone, skip the check */
- for (cs_index = 0; cs_index < NO_CHECK_TYPE; cs_index++) {
- cs = &SM_I(sbi)->curseg_array[cs_index];
- if (zone_segno <= cs->segno &&
- cs->segno < zone_segno + segs_per_zone)
- return 0;
- }
-
last_valid_blkoff = last_vblk_off_in_zone(sbi, zone_segno);
/*
@@ -3217,10 +3185,27 @@ static int chk_and_fix_wp_with_sit(int UNUSED(i), void *blkzone, void *opaque)
if (last_valid_blkoff + zone_block > wp_block) {
MSG(0, "Unexpected invalid write pointer: wp[0x%x,0x%x]\n",
wp_segno, wp_blkoff);
+ if (!c.fix_on)
+ fsck->chk.wp_inconsistent_zones++;
+ }
+
+ if (!c.fix_on)
return 0;
+
+ ret = f2fs_finish_zone(wpd->dev_index, blkz);
+ if (ret) {
+ u64 fill_sects = blk_zone_length(blkz) -
+ (blk_zone_wp_sector(blkz) - blk_zone_sector(blkz));
+ printf("[FSCK] Finishing zone failed: %s\n", dev->path);
+ ret = dev_fill(NULL, wp_block * F2FS_BLKSIZE,
+ (fill_sects >> log_sectors_per_block) * F2FS_BLKSIZE);
+ if (ret)
+ printf("[FSCK] Fill up zone failed: %s\n", dev->path);
}
- return 0;
+ if (!ret)
+ fsck->chk.wp_fixed = 1;
+ return ret;
}
static void fix_wp_sit_alignment(struct f2fs_sb_info *sbi)
diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 772a6a5..d94e447 100644
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -1749,6 +1749,7 @@ extern int f2fs_report_zones(int, report_zones_cb_t *, void *);
extern int f2fs_check_zones(int);
int f2fs_reset_zone(int, void *);
extern int f2fs_reset_zones(int);
+int f2fs_finish_zone(int i, void *blkzone);
extern uint32_t f2fs_get_usable_segments(struct f2fs_super_block *sb);
#define SIZE_ALIGN(val, size) (((val) + (size) - 1) / (size))
diff --git a/lib/libf2fs_zoned.c b/lib/libf2fs_zoned.c
index 2ab2497..ba9286f 100644
--- a/lib/libf2fs_zoned.c
+++ b/lib/libf2fs_zoned.c
@@ -502,6 +502,28 @@ out:
return ret;
}
+int f2fs_finish_zone(int i, void *blkzone)
+{
+ struct blk_zone *blkz = (struct blk_zone *)blkzone;
+ struct device_info *dev = c.devices + i;
+ struct blk_zone_range range;
+ int ret;
+
+ if (!blk_zone_seq(blkz) || blk_zone_empty(blkz))
+ return 0;
+
+ /* Non empty sequential zone: finish */
+ range.sector = blk_zone_sector(blkz);
+ range.nr_sectors = blk_zone_length(blkz);
+ ret = ioctl(dev->fd, BLKFINISHZONE, &range);
+ if (ret != 0) {
+ ret = -errno;
+ ERR_MSG("ioctl BLKFINISHZONE failed: errno=%d\n", errno);
+ }
+
+ return ret;
+}
+
uint32_t f2fs_get_usable_segments(struct f2fs_super_block *sb)
{
#ifdef HAVE_BLK_ZONE_REP_V2
@@ -588,6 +610,12 @@ int f2fs_reset_zones(int i)
return -1;
}
+int f2fs_finish_zone(int i, void *UNUSED(blkzone))
+{
+ ERR_MSG("%d: Unsupported zoned block device\n", i);
+ return -1;
+}
+
uint32_t f2fs_get_usable_segments(struct f2fs_super_block *sb)
{
return get_sb(segment_count_main);
--
2.42.0.655.g421f12c284-goog
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