In order to simulate skipped write during enable_checkpoint().
Signed-off-by: Chao Yu <[email protected]>
---
Documentation/ABI/testing/sysfs-fs-f2fs | 1 +
Documentation/filesystems/f2fs.rst | 1 +
fs/f2fs/data.c | 4 ++++
fs/f2fs/f2fs.h | 1 +
fs/f2fs/super.c | 1 +
5 files changed, 8 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs
b/Documentation/ABI/testing/sysfs-fs-f2fs
index 7398b369784c..9a8ec2290f68 100644
--- a/Documentation/ABI/testing/sysfs-fs-f2fs
+++ b/Documentation/ABI/testing/sysfs-fs-f2fs
@@ -744,6 +744,7 @@ Description: Support configuring fault injection
type, should be
FAULT_ATOMIC_TIMEOUT 0x00400000 (1000ms)
FAULT_VMALLOC 0x00800000
FAULT_LOCK_TIMEOUT 0x01000000 (1000ms)
+ FAULT_SKIP_WRITE 0x02000000
=========================== ==========
What: /sys/fs/f2fs/<disk>/discard_io_aware_gran
diff --git a/Documentation/filesystems/f2fs.rst
b/Documentation/filesystems/f2fs.rst
index fc005f2eaf86..7e4031631286 100644
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -218,6 +218,7 @@ fault_type=%d Support configuring fault
injection type, should be
FAULT_ATOMIC_TIMEOUT 0x00400000
(1000ms)
FAULT_VMALLOC 0x00800000
FAULT_LOCK_TIMEOUT 0x01000000
(1000ms)
+ FAULT_SKIP_WRITE 0x02000000
=========================== ==========
mode=%s Control block allocation mode which supports
"adaptive"
and "lfs". In "lfs" mode, there should be no random
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 00108d5881aa..830c8090767e 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2926,6 +2926,10 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
goto got_it;
}
+ if (is_sbi_flag_set(fio->sbi, SBI_ENABLE_CHECKPOINT) &&
+ time_to_inject(fio->sbi, FAULT_SKIP_WRITE))
+ return -EINVAL;
+
/* Deadlock due to between page->lock and f2fs_lock_op */
if (fio->need_lock == LOCK_REQ && !f2fs_trylock_op(fio->sbi, &lc))
return -EAGAIN;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 52cec6b3ecf0..3a8e1dcdcd69 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -66,6 +66,7 @@ enum {
FAULT_ATOMIC_TIMEOUT,
FAULT_VMALLOC,
FAULT_LOCK_TIMEOUT,
+ FAULT_SKIP_WRITE,
FAULT_MAX,
};
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 0afe9f829058..5d8b2e812340 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -70,6 +70,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
[FAULT_ATOMIC_TIMEOUT] = "atomic timeout",
[FAULT_VMALLOC] = "vmalloc",
[FAULT_LOCK_TIMEOUT] = "lock timeout",
+ [FAULT_SKIP_WRITE] = "skip write",
};
int f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned long rate,
--
2.40.1
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