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Diffstat (limited to 'kernel')
-rw-r--r--kernel/power/swap.c29
-rw-r--r--kernel/trace/blktrace.c72
2 files changed, 43 insertions, 58 deletions
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index 91fffdd2c7fb..277434b6c0bf 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -269,15 +269,14 @@ static void hib_end_io(struct bio *bio)
bio_put(bio);
}
-static int hib_submit_io(int op, int op_flags, pgoff_t page_off, void *addr,
- struct hib_bio_batch *hb)
+static int hib_submit_io(blk_opf_t opf, pgoff_t page_off, void *addr,
+ struct hib_bio_batch *hb)
{
struct page *page = virt_to_page(addr);
struct bio *bio;
int error = 0;
- bio = bio_alloc(hib_resume_bdev, 1, op | op_flags,
- GFP_NOIO | __GFP_HIGH);
+ bio = bio_alloc(hib_resume_bdev, 1, opf, GFP_NOIO | __GFP_HIGH);
bio->bi_iter.bi_sector = page_off * (PAGE_SIZE >> 9);
if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
@@ -317,8 +316,7 @@ static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags)
{
int error;
- hib_submit_io(REQ_OP_READ, 0, swsusp_resume_block,
- swsusp_header, NULL);
+ hib_submit_io(REQ_OP_READ, swsusp_resume_block, swsusp_header, NULL);
if (!memcmp("SWAP-SPACE",swsusp_header->sig, 10) ||
!memcmp("SWAPSPACE2",swsusp_header->sig, 10)) {
memcpy(swsusp_header->orig_sig,swsusp_header->sig, 10);
@@ -331,7 +329,7 @@ static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags)
swsusp_header->flags = flags;
if (flags & SF_CRC32_MODE)
swsusp_header->crc32 = handle->crc32;
- error = hib_submit_io(REQ_OP_WRITE, REQ_SYNC,
+ error = hib_submit_io(REQ_OP_WRITE | REQ_SYNC,
swsusp_resume_block, swsusp_header, NULL);
} else {
pr_err("Swap header not found!\n");
@@ -408,7 +406,7 @@ static int write_page(void *buf, sector_t offset, struct hib_bio_batch *hb)
} else {
src = buf;
}
- return hib_submit_io(REQ_OP_WRITE, REQ_SYNC, offset, src, hb);
+ return hib_submit_io(REQ_OP_WRITE | REQ_SYNC, offset, src, hb);
}
static void release_swap_writer(struct swap_map_handle *handle)
@@ -1003,7 +1001,7 @@ static int get_swap_reader(struct swap_map_handle *handle,
return -ENOMEM;
}
- error = hib_submit_io(REQ_OP_READ, 0, offset, tmp->map, NULL);
+ error = hib_submit_io(REQ_OP_READ, offset, tmp->map, NULL);
if (error) {
release_swap_reader(handle);
return error;
@@ -1027,7 +1025,7 @@ static int swap_read_page(struct swap_map_handle *handle, void *buf,
offset = handle->cur->entries[handle->k];
if (!offset)
return -EFAULT;
- error = hib_submit_io(REQ_OP_READ, 0, offset, buf, hb);
+ error = hib_submit_io(REQ_OP_READ, offset, buf, hb);
if (error)
return error;
if (++handle->k >= MAP_PAGE_ENTRIES) {
@@ -1526,8 +1524,7 @@ int swsusp_check(void)
if (!IS_ERR(hib_resume_bdev)) {
set_blocksize(hib_resume_bdev, PAGE_SIZE);
clear_page(swsusp_header);
- error = hib_submit_io(REQ_OP_READ, 0,
- swsusp_resume_block,
+ error = hib_submit_io(REQ_OP_READ, swsusp_resume_block,
swsusp_header, NULL);
if (error)
goto put;
@@ -1535,7 +1532,7 @@ int swsusp_check(void)
if (!memcmp(HIBERNATE_SIG, swsusp_header->sig, 10)) {
memcpy(swsusp_header->sig, swsusp_header->orig_sig, 10);
/* Reset swap signature now */
- error = hib_submit_io(REQ_OP_WRITE, REQ_SYNC,
+ error = hib_submit_io(REQ_OP_WRITE | REQ_SYNC,
swsusp_resume_block,
swsusp_header, NULL);
} else {
@@ -1586,11 +1583,11 @@ int swsusp_unmark(void)
{
int error;
- hib_submit_io(REQ_OP_READ, 0, swsusp_resume_block,
- swsusp_header, NULL);
+ hib_submit_io(REQ_OP_READ, swsusp_resume_block,
+ swsusp_header, NULL);
if (!memcmp(HIBERNATE_SIG,swsusp_header->sig, 10)) {
memcpy(swsusp_header->sig,swsusp_header->orig_sig, 10);
- error = hib_submit_io(REQ_OP_WRITE, REQ_SYNC,
+ error = hib_submit_io(REQ_OP_WRITE | REQ_SYNC,
swsusp_resume_block,
swsusp_header, NULL);
} else {
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index fe04c6f96ca5..7f5eb295fe19 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -205,7 +205,7 @@ static const u32 ddir_act[2] = { BLK_TC_ACT(BLK_TC_READ),
#define BLK_TC_PREFLUSH BLK_TC_FLUSH
/* The ilog2() calls fall out because they're constant */
-#define MASK_TC_BIT(rw, __name) ((rw & REQ_ ## __name) << \
+#define MASK_TC_BIT(rw, __name) ((__force u32)(rw & REQ_ ## __name) << \
(ilog2(BLK_TC_ ## __name) + BLK_TC_SHIFT - __REQ_ ## __name))
/*
@@ -213,8 +213,8 @@ static const u32 ddir_act[2] = { BLK_TC_ACT(BLK_TC_READ),
* blk_io_trace structure and places it in a per-cpu subbuffer.
*/
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, u64 cgid)
+ const blk_opf_t opf, u32 what, int error,
+ int pdu_len, void *pdu_data, u64 cgid)
{
struct task_struct *tsk = current;
struct ring_buffer_event *event = NULL;
@@ -227,16 +227,17 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
int cpu;
bool blk_tracer = blk_tracer_enabled;
ssize_t cgid_len = cgid ? sizeof(cgid) : 0;
+ const enum req_op op = opf & REQ_OP_MASK;
if (unlikely(bt->trace_state != Blktrace_running && !blk_tracer))
return;
what |= ddir_act[op_is_write(op) ? WRITE : READ];
- what |= MASK_TC_BIT(op_flags, SYNC);
- what |= MASK_TC_BIT(op_flags, RAHEAD);
- what |= MASK_TC_BIT(op_flags, META);
- what |= MASK_TC_BIT(op_flags, PREFLUSH);
- what |= MASK_TC_BIT(op_flags, FUA);
+ what |= MASK_TC_BIT(opf, SYNC);
+ what |= MASK_TC_BIT(opf, RAHEAD);
+ what |= MASK_TC_BIT(opf, META);
+ what |= MASK_TC_BIT(opf, PREFLUSH);
+ what |= MASK_TC_BIT(opf, FUA);
if (op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE)
what |= BLK_TC_ACT(BLK_TC_DISCARD);
if (op == REQ_OP_FLUSH)
@@ -736,12 +737,12 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
switch (cmd) {
case BLKTRACESETUP:
- bdevname(bdev, b);
+ snprintf(b, sizeof(b), "%pg", bdev);
ret = __blk_trace_setup(q, b, bdev->bd_dev, bdev, arg);
break;
#if defined(CONFIG_COMPAT) && defined(CONFIG_X86_64)
case BLKTRACESETUP32:
- bdevname(bdev, b);
+ snprintf(b, sizeof(b), "%pg", bdev);
ret = compat_blk_trace_setup(q, b, bdev->bd_dev, bdev, arg);
break;
#endif
@@ -842,9 +843,8 @@ static void blk_add_trace_rq(struct request *rq, blk_status_t error,
else
what |= BLK_TC_ACT(BLK_TC_FS);
- __blk_add_trace(bt, blk_rq_trace_sector(rq), nr_bytes, req_op(rq),
- rq->cmd_flags, what, blk_status_to_errno(error), 0,
- NULL, cgid);
+ __blk_add_trace(bt, blk_rq_trace_sector(rq), nr_bytes, rq->cmd_flags,
+ what, blk_status_to_errno(error), 0, NULL, cgid);
rcu_read_unlock();
}
@@ -903,7 +903,7 @@ static void blk_add_trace_bio(struct request_queue *q, struct bio *bio,
}
__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
- bio_op(bio), bio->bi_opf, what, error, 0, NULL,
+ bio->bi_opf, what, error, 0, NULL,
blk_trace_bio_get_cgid(q, bio));
rcu_read_unlock();
}
@@ -949,7 +949,7 @@ static void blk_add_trace_plug(void *ignore, struct request_queue *q)
rcu_read_lock();
bt = rcu_dereference(q->blk_trace);
if (bt)
- __blk_add_trace(bt, 0, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL, 0);
+ __blk_add_trace(bt, 0, 0, 0, BLK_TA_PLUG, 0, 0, NULL, 0);
rcu_read_unlock();
}
@@ -969,7 +969,7 @@ 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, 0);
+ __blk_add_trace(bt, 0, 0, 0, what, 0, sizeof(rpdu), &rpdu, 0);
}
rcu_read_unlock();
}
@@ -985,8 +985,7 @@ static void blk_add_trace_split(void *ignore, struct bio *bio, unsigned int pdu)
__be64 rpdu = cpu_to_be64(pdu);
__blk_add_trace(bt, bio->bi_iter.bi_sector,
- bio->bi_iter.bi_size, bio_op(bio), bio->bi_opf,
- BLK_TA_SPLIT,
+ bio->bi_iter.bi_size, bio->bi_opf, BLK_TA_SPLIT,
blk_status_to_errno(bio->bi_status),
sizeof(rpdu), &rpdu,
blk_trace_bio_get_cgid(q, bio));
@@ -1022,7 +1021,7 @@ static void blk_add_trace_bio_remap(void *ignore, struct bio *bio, dev_t dev,
r.sector_from = cpu_to_be64(from);
__blk_add_trace(bt, bio->bi_iter.bi_sector, bio->bi_iter.bi_size,
- bio_op(bio), bio->bi_opf, BLK_TA_REMAP,
+ bio->bi_opf, BLK_TA_REMAP,
blk_status_to_errno(bio->bi_status),
sizeof(r), &r, blk_trace_bio_get_cgid(q, bio));
rcu_read_unlock();
@@ -1058,7 +1057,7 @@ static void blk_add_trace_rq_remap(void *ignore, struct request *rq, dev_t dev,
r.sector_from = cpu_to_be64(from);
__blk_add_trace(bt, blk_rq_pos(rq), blk_rq_bytes(rq),
- rq_data_dir(rq), 0, BLK_TA_REMAP, 0,
+ rq->cmd_flags, BLK_TA_REMAP, 0,
sizeof(r), &r, blk_trace_request_get_cgid(rq));
rcu_read_unlock();
}
@@ -1084,7 +1083,7 @@ void blk_add_driver_data(struct request *rq, void *data, size_t len)
return;
}
- __blk_add_trace(bt, blk_rq_trace_sector(rq), blk_rq_bytes(rq), 0, 0,
+ __blk_add_trace(bt, blk_rq_trace_sector(rq), blk_rq_bytes(rq), 0,
BLK_TA_DRV_DATA, 0, len, data,
blk_trace_request_get_cgid(rq));
rcu_read_unlock();
@@ -1867,17 +1866,6 @@ out_unlock_bdev:
out:
return ret ? ret : count;
}
-
-int blk_trace_init_sysfs(struct device *dev)
-{
- return sysfs_create_group(&dev->kobj, &blk_trace_attr_group);
-}
-
-void blk_trace_remove_sysfs(struct device *dev)
-{
- sysfs_remove_group(&dev->kobj, &blk_trace_attr_group);
-}
-
#endif /* CONFIG_BLK_DEV_IO_TRACE */
#ifdef CONFIG_EVENT_TRACING
@@ -1885,21 +1873,21 @@ void blk_trace_remove_sysfs(struct device *dev)
/**
* blk_fill_rwbs - Fill the buffer rwbs by mapping op to character string.
* @rwbs: buffer to be filled
- * @op: REQ_OP_XXX for the tracepoint
+ * @opf: request operation type (REQ_OP_XXX) and flags for the tracepoint
*
* Description:
- * Maps the REQ_OP_XXX to character and fills the buffer provided by the
- * caller with resulting string.
+ * Maps each request operation and flag to a single character and fills the
+ * buffer provided by the caller with resulting string.
*
**/
-void blk_fill_rwbs(char *rwbs, unsigned int op)
+void blk_fill_rwbs(char *rwbs, blk_opf_t opf)
{
int i = 0;
- if (op & REQ_PREFLUSH)
+ if (opf & REQ_PREFLUSH)
rwbs[i++] = 'F';
- switch (op & REQ_OP_MASK) {
+ switch (opf & REQ_OP_MASK) {
case REQ_OP_WRITE:
rwbs[i++] = 'W';
break;
@@ -1920,13 +1908,13 @@ void blk_fill_rwbs(char *rwbs, unsigned int op)
rwbs[i++] = 'N';
}
- if (op & REQ_FUA)
+ if (opf & REQ_FUA)
rwbs[i++] = 'F';
- if (op & REQ_RAHEAD)
+ if (opf & REQ_RAHEAD)
rwbs[i++] = 'A';
- if (op & REQ_SYNC)
+ if (opf & REQ_SYNC)
rwbs[i++] = 'S';
- if (op & REQ_META)
+ if (opf & REQ_META)
rwbs[i++] = 'M';
rwbs[i] = '\0';
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-23 00:53:08 +0000