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-rw-r--r--kernel/bpf/helpers.c2
-rw-r--r--kernel/bpf/local_storage.c2
-rw-r--r--kernel/cgroup/cgroup.c3
-rw-r--r--kernel/trace/blktrace.c67
4 files changed, 34 insertions, 40 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index 5e28718928ca..912e761cd17a 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -317,7 +317,7 @@ BPF_CALL_0(bpf_get_current_cgroup_id)
{
struct cgroup *cgrp = task_dfl_cgroup(current);
- return cgrp->kn->id.id;
+ return cgrp->kn->id;
}
const struct bpf_func_proto bpf_get_current_cgroup_id_proto = {
diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index addd6fdceec8..5d867f6d7204 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -569,7 +569,7 @@ void bpf_cgroup_storage_link(struct bpf_cgroup_storage *storage,
return;
storage->key.attach_type = type;
- storage->key.cgroup_inode_id = cgroup->kn->id.id;
+ storage->key.cgroup_inode_id = cgroup->kn->id;
map = storage->map;
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index cf32c0c7a45d..c6bd1a5a1977 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -5786,8 +5786,7 @@ static int __init cgroup_wq_init(void)
}
core_initcall(cgroup_wq_init);
-void cgroup_path_from_kernfs_id(const union kernfs_node_id *id,
- char *buf, size_t buflen)
+void cgroup_path_from_kernfs_id(u64 id, char *buf, size_t buflen)
{
struct kernfs_node *kn;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 2d6e93ab0478..a986d2e74ca2 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -64,8 +64,7 @@ static void blk_unregister_tracepoints(void);
* Send out a notify message.
*/
static void trace_note(struct blk_trace *bt, pid_t pid, int action,
- const void *data, size_t len,
- union kernfs_node_id *cgid)
+ const void *data, size_t len, u64 cgid)
{
struct blk_io_trace *t;
struct ring_buffer_event *event = NULL;
@@ -73,7 +72,7 @@ static void trace_note(struct blk_trace *bt, pid_t pid, int action,
int pc = 0;
int cpu = smp_processor_id();
bool blk_tracer = blk_tracer_enabled;
- ssize_t cgid_len = cgid ? sizeof(*cgid) : 0;
+ ssize_t cgid_len = cgid ? sizeof(cgid) : 0;
if (blk_tracer) {
buffer = blk_tr->trace_buffer.buffer;
@@ -100,8 +99,8 @@ record_it:
t->pid = pid;
t->cpu = cpu;
t->pdu_len = len + cgid_len;
- if (cgid)
- memcpy((void *)t + sizeof(*t), cgid, cgid_len);
+ if (cgid_len)
+ memcpy((void *)t + sizeof(*t), &cgid, cgid_len);
memcpy((void *) t + sizeof(*t) + cgid_len, data, len);
if (blk_tracer)
@@ -122,7 +121,7 @@ static void trace_note_tsk(struct task_struct *tsk)
spin_lock_irqsave(&running_trace_lock, flags);
list_for_each_entry(bt, &running_trace_list, running_list) {
trace_note(bt, tsk->pid, BLK_TN_PROCESS, tsk->comm,
- sizeof(tsk->comm), NULL);
+ sizeof(tsk->comm), 0);
}
spin_unlock_irqrestore(&running_trace_lock, flags);
}
@@ -139,7 +138,7 @@ static void trace_note_time(struct blk_trace *bt)
words[1] = now.tv_nsec;
local_irq_save(flags);
- trace_note(bt, 0, BLK_TN_TIMESTAMP, words, sizeof(words), NULL);
+ trace_note(bt, 0, BLK_TN_TIMESTAMP, words, sizeof(words), 0);
local_irq_restore(flags);
}
@@ -172,9 +171,9 @@ void __trace_note_message(struct blk_trace *bt, struct blkcg *blkcg,
blkcg = NULL;
#ifdef CONFIG_BLK_CGROUP
trace_note(bt, 0, BLK_TN_MESSAGE, buf, n,
- blkcg ? cgroup_get_kernfs_id(blkcg->css.cgroup) : NULL);
+ blkcg ? cgroup_get_kernfs_id(blkcg->css.cgroup) : 0);
#else
- trace_note(bt, 0, BLK_TN_MESSAGE, buf, n, NULL);
+ trace_note(bt, 0, BLK_TN_MESSAGE, buf, n, 0);
#endif
local_irq_restore(flags);
}
@@ -212,7 +211,7 @@ static const u32 ddir_act[2] = { BLK_TC_ACT(BLK_TC_READ),
*/
static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
int op, int op_flags, u32 what, int error, int pdu_len,
- void *pdu_data, union kernfs_node_id *cgid)
+ void *pdu_data, u64 cgid)
{
struct task_struct *tsk = current;
struct ring_buffer_event *event = NULL;
@@ -223,7 +222,7 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
pid_t pid;
int cpu, pc = 0;
bool blk_tracer = blk_tracer_enabled;
- ssize_t cgid_len = cgid ? sizeof(*cgid) : 0;
+ ssize_t cgid_len = cgid ? sizeof(cgid) : 0;
if (unlikely(bt->trace_state != Blktrace_running && !blk_tracer))
return;
@@ -294,7 +293,7 @@ record_it:
t->pdu_len = pdu_len + cgid_len;
if (cgid_len)
- memcpy((void *)t + sizeof(*t), cgid, cgid_len);
+ memcpy((void *)t + sizeof(*t), &cgid, cgid_len);
if (pdu_len)
memcpy((void *)t + sizeof(*t) + cgid_len, pdu_data, pdu_len);
@@ -751,31 +750,29 @@ void blk_trace_shutdown(struct request_queue *q)
}
#ifdef CONFIG_BLK_CGROUP
-static union kernfs_node_id *
-blk_trace_bio_get_cgid(struct request_queue *q, struct bio *bio)
+static u64 blk_trace_bio_get_cgid(struct request_queue *q, struct bio *bio)
{
struct blk_trace *bt = q->blk_trace;
if (!bt || !(blk_tracer_flags.val & TRACE_BLK_OPT_CGROUP))
- return NULL;
+ return 0;
if (!bio->bi_blkg)
- return NULL;
+ return 0;
return cgroup_get_kernfs_id(bio_blkcg(bio)->css.cgroup);
}
#else
-static union kernfs_node_id *
-blk_trace_bio_get_cgid(struct request_queue *q, struct bio *bio)
+u64 blk_trace_bio_get_cgid(struct request_queue *q, struct bio *bio)
{
- return NULL;
+ return 0;
}
#endif
-static union kernfs_node_id *
+static u64
blk_trace_request_get_cgid(struct request_queue *q, struct request *rq)
{
if (!rq->bio)
- return NULL;
+ return 0;
/* Use the first bio */
return blk_trace_bio_get_cgid(q, rq->bio);
}
@@ -797,8 +794,7 @@ blk_trace_request_get_cgid(struct request_queue *q, struct request *rq)
*
**/
static void blk_add_trace_rq(struct request *rq, int error,
- unsigned int nr_bytes, u32 what,
- union kernfs_node_id *cgid)
+ unsigned int nr_bytes, u32 what, u64 cgid)
{
struct blk_trace *bt = rq->q->blk_trace;
@@ -913,7 +909,7 @@ static void blk_add_trace_getrq(void *ignore,
if (bt)
__blk_add_trace(bt, 0, 0, rw, 0, BLK_TA_GETRQ, 0, 0,
- NULL, NULL);
+ NULL, 0);
}
}
@@ -929,7 +925,7 @@ static void blk_add_trace_sleeprq(void *ignore,
if (bt)
__blk_add_trace(bt, 0, 0, rw, 0, BLK_TA_SLEEPRQ,
- 0, 0, NULL, NULL);
+ 0, 0, NULL, 0);
}
}
@@ -938,7 +934,7 @@ static void blk_add_trace_plug(void *ignore, struct request_queue *q)
struct blk_trace *bt = q->blk_trace;
if (bt)
- __blk_add_trace(bt, 0, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL, NULL);
+ __blk_add_trace(bt, 0, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL, 0);
}
static void blk_add_trace_unplug(void *ignore, struct request_queue *q,
@@ -955,7 +951,7 @@ static void blk_add_trace_unplug(void *ignore, struct request_queue *q,
else
what = BLK_TA_UNPLUG_TIMER;
- __blk_add_trace(bt, 0, 0, 0, 0, what, 0, sizeof(rpdu), &rpdu, NULL);
+ __blk_add_trace(bt, 0, 0, 0, 0, what, 0, sizeof(rpdu), &rpdu, 0);
}
}
@@ -1172,19 +1168,17 @@ const struct blk_io_trace *te_blk_io_trace(const struct trace_entry *ent)
static inline const void *pdu_start(const struct trace_entry *ent, bool has_cg)
{
- return (void *)(te_blk_io_trace(ent) + 1) +
- (has_cg ? sizeof(union kernfs_node_id) : 0);
+ return (void *)(te_blk_io_trace(ent) + 1) + (has_cg ? sizeof(u64) : 0);
}
-static inline const void *cgid_start(const struct trace_entry *ent)
+static inline u64 t_cgid(const struct trace_entry *ent)
{
- return (void *)(te_blk_io_trace(ent) + 1);
+ return *(u64 *)(te_blk_io_trace(ent) + 1);
}
static inline int pdu_real_len(const struct trace_entry *ent, bool has_cg)
{
- return te_blk_io_trace(ent)->pdu_len -
- (has_cg ? sizeof(union kernfs_node_id) : 0);
+ return te_blk_io_trace(ent)->pdu_len - (has_cg ? sizeof(u64) : 0);
}
static inline u32 t_action(const struct trace_entry *ent)
@@ -1257,7 +1251,7 @@ static void blk_log_action(struct trace_iterator *iter, const char *act,
fill_rwbs(rwbs, t);
if (has_cg) {
- const union kernfs_node_id *id = cgid_start(iter->ent);
+ u64 id = t_cgid(iter->ent);
if (blk_tracer_flags.val & TRACE_BLK_OPT_CGNAME) {
char blkcg_name_buf[NAME_MAX + 1] = "<...>";
@@ -1269,9 +1263,10 @@ static void blk_log_action(struct trace_iterator *iter, const char *act,
blkcg_name_buf, act, rwbs);
} else
trace_seq_printf(&iter->seq,
- "%3d,%-3d %x,%-x %2s %3s ",
+ "%3d,%-3d %lx,%-x %2s %3s ",
MAJOR(t->device), MINOR(t->device),
- id->ino, id->generation, act, rwbs);
+ kernfs_id_ino(id), kernfs_id_gen(id),
+ act, rwbs);
} else
trace_seq_printf(&iter->seq, "%3d,%-3d %2s %3s ",
MAJOR(t->device), MINOR(t->device), act, rwbs);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 07:41:49 +0100