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f2fs: fix to drop all dirty meta/node pages during umount() 

For cp error case, there will be dirty meta/node pages remained after
f2fs_write_checkpoint() in f2fs_put_super(), drop them explicitly, and
do sanity check on reference count of dirty pages and inflight IOs.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2023-05-28 15:47:12 +08:00 committed by Jaegeuk Kim
parent 38a4a330c8
commit 20872584b8
1 changed files with 16 additions and 2 deletions
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18
fs/f2fs/super.c
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@ -1571,6 +1571,7 @@ static void f2fs_put_super(struct super_block *sb)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
int i;
int err = 0;
bool done;
/* unregister procfs/sysfs entries in advance to avoid race case */
@ -1597,7 +1598,7 @@ static void f2fs_put_super(struct super_block *sb)
struct cp_control cpc = {
.reason = CP_UMOUNT,
};
f2fs_write_checkpoint(sbi, &cpc);
err = f2fs_write_checkpoint(sbi, &cpc);
}
/* be sure to wait for any on-going discard commands */
@ -1606,7 +1607,7 @@ static void f2fs_put_super(struct super_block *sb)
struct cp_control cpc = {
.reason = CP_UMOUNT | CP_TRIMMED,
};
f2fs_write_checkpoint(sbi, &cpc);
err = f2fs_write_checkpoint(sbi, &cpc);
}
/*
@ -1623,6 +1624,19 @@ static void f2fs_put_super(struct super_block *sb)
f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
if (err) {
truncate_inode_pages_final(NODE_MAPPING(sbi));
truncate_inode_pages_final(META_MAPPING(sbi));
}
for (i = 0; i < NR_COUNT_TYPE; i++) {
if (!get_pages(sbi, i))
continue;
f2fs_err(sbi, "detect filesystem reference count leak during "
"umount, type: %d, count: %lld", i, get_pages(sbi, i));
f2fs_bug_on(sbi, 1);
}
f2fs_bug_on(sbi, sbi->fsync_node_num);
f2fs_destroy_compress_inode(sbi);