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authorYue Zhao <findns94@gmail.com>2023-05-04 00:29:44 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-05-31 20:26:57 +0100
commitb290df06811852d4cc36f4b8a2a30c2063197a74 (patch)
tree788a1c5601f8e01dc7ecdadf6651ff8f14a933bc
parentc0b92cc56295af02410378b4f85957578d4ea1c6 (diff)
lkdtm: replace ll_rw_block with submit_bh
Function ll_rw_block was removed in commit 79f597842069 ("fs/buffer: remove ll_rw_block() helper"). There is no unified function to sumbit read or write buffer in block layer for now. Consider similar sematics, we can choose submit_bh() to replace ll_rw_block() as predefined crash point. In submit_bh(), it also takes read or write flag as the first argument and invoke submit_bio() to submit I/O request to block layer. Fixes: 79f597842069 ("fs/buffer: remove ll_rw_block() helper") Signed-off-by: Yue Zhao <findns94@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230503162944.3969-1-findns94@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/fault-injection/provoke-crashes.rst2
-rw-r--r--drivers/misc/lkdtm/core.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/fault-injection/provoke-crashes.rst b/Documentation/fault-injection/provoke-crashes.rst
index 3abe84225613..1f087e502ca6 100644
--- a/Documentation/fault-injection/provoke-crashes.rst
+++ b/Documentation/fault-injection/provoke-crashes.rst
@@ -29,7 +29,7 @@ recur_count
cpoint_name
Where in the kernel to trigger the action. It can be
one of INT_HARDWARE_ENTRY, INT_HW_IRQ_EN, INT_TASKLET_ENTRY,
- FS_DEVRW, MEM_SWAPOUT, TIMERADD, SCSI_QUEUE_RQ, or DIRECT.
+ FS_SUBMIT_BH, MEM_SWAPOUT, TIMERADD, SCSI_QUEUE_RQ, or DIRECT.
cpoint_type
Indicates the action to be taken on hitting the crash point.
diff --git a/drivers/misc/lkdtm/core.c b/drivers/misc/lkdtm/core.c
index b4712ff196b4..0772e4a4757e 100644
--- a/drivers/misc/lkdtm/core.c
+++ b/drivers/misc/lkdtm/core.c
@@ -79,7 +79,7 @@ static struct crashpoint crashpoints[] = {
CRASHPOINT("INT_HARDWARE_ENTRY", "do_IRQ"),
CRASHPOINT("INT_HW_IRQ_EN", "handle_irq_event"),
CRASHPOINT("INT_TASKLET_ENTRY", "tasklet_action"),
- CRASHPOINT("FS_DEVRW", "ll_rw_block"),
+ CRASHPOINT("FS_SUBMIT_BH", "submit_bh"),
CRASHPOINT("MEM_SWAPOUT", "shrink_inactive_list"),
CRASHPOINT("TIMERADD", "hrtimer_start"),
CRASHPOINT("SCSI_QUEUE_RQ", "scsi_queue_rq"),