Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=802ba064c49f655d20fed563f2a4924c8256ea10
Commit: 802ba064c49f655d20fed563f2a4924c8256ea10
Parent: 011e3a9ad4891ba1b27e281e085228189c56b137
Author: NeilBrown <[EMAIL PROTECTED]>
AuthorDate: Wed Dec 13 00:34:13 2006 -0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Wed Dec 13 09:05:48 2006 -0800
[PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names
explicitly
Thanks Jens for alerting me to this.
Cc: Jens Axboe <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Signed-off-by: Neil Brown <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
drivers/md/faulty.c | 2 +-
drivers/md/raid1.c | 2 +-
drivers/md/raid10.c | 6 +++---
drivers/md/raid5.c | 20 ++++++++++----------
4 files changed, 15 insertions(+), 15 deletions(-)
diff --git a/drivers/md/faulty.c b/drivers/md/faulty.c
index a7a5ab5..4ebd0f2 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/faulty.c
@@ -173,7 +173,7 @@ static int make_request(request_queue_t *q, struct bio *bio)
conf_t *conf = (conf_t*)mddev->private;
int failit = 0;
- if (bio->bi_rw & 1) {
+ if (bio_data_dir(bio) == WRITE) {
/* write request */
if (atomic_read(&conf->counters[WriteAll])) {
/* special case - don't decrement, don't
generic_make_request,
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index b3c5e12..b30f74b 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1736,7 +1736,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t
sector_nr, int *skipped, i
/* take from bio_init */
bio->bi_next = NULL;
bio->bi_flags |= 1 << BIO_UPTODATE;
- bio->bi_rw = 0;
+ bio->bi_rw = READ;
bio->bi_vcnt = 0;
bio->bi_idx = 0;
bio->bi_phys_segments = 0;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 7492d60..f014191 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1785,7 +1785,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t
sector_nr, int *skipped, i
biolist = bio;
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_read;
- bio->bi_rw = 0;
+ bio->bi_rw = READ;
bio->bi_sector =
r10_bio->devs[j].addr +
conf->mirrors[d].rdev->data_offset;
bio->bi_bdev =
conf->mirrors[d].rdev->bdev;
@@ -1801,7 +1801,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t
sector_nr, int *skipped, i
biolist = bio;
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_write;
- bio->bi_rw = 1;
+ bio->bi_rw = WRITE;
bio->bi_sector =
r10_bio->devs[k].addr +
conf->mirrors[i].rdev->data_offset;
bio->bi_bdev =
conf->mirrors[i].rdev->bdev;
@@ -1870,7 +1870,7 @@ static sector_t sync_request(mddev_t *mddev, sector_t
sector_nr, int *skipped, i
biolist = bio;
bio->bi_private = r10_bio;
bio->bi_end_io = end_sync_read;
- bio->bi_rw = 0;
+ bio->bi_rw = READ;
bio->bi_sector = r10_bio->devs[i].addr +
conf->mirrors[d].rdev->data_offset;
bio->bi_bdev = conf->mirrors[d].rdev->bdev;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 377f8bc..be008f0 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1827,16 +1827,16 @@ static void handle_stripe5(struct stripe_head *sh)
struct bio *bi;
mdk_rdev_t *rdev;
if (test_and_clear_bit(R5_Wantwrite, &sh->dev[i].flags))
- rw = 1;
+ rw = WRITE;
else if (test_and_clear_bit(R5_Wantread, &sh->dev[i].flags))
- rw = 0;
+ rw = READ;
else
continue;
bi = &sh->dev[i].req;
bi->bi_rw = rw;
- if (rw)
+ if (rw == WRITE)
bi->bi_end_io = raid5_end_write_request;
else
bi->bi_end_io = raid5_end_read_request;
@@ -1872,7 +1872,7 @@ static void handle_stripe5(struct stripe_head *sh)
atomic_add(STRIPE_SECTORS,
&rdev->corrected_errors);
generic_make_request(bi);
} else {
- if (rw == 1)
+ if (rw == WRITE)
set_bit(STRIPE_DEGRADED, &sh->state);
PRINTK("skip op %ld on disc %d for sector %llu\n",
bi->bi_rw, i, (unsigned long long)sh->sector);
@@ -2370,16 +2370,16 @@ static void handle_stripe6(struct stripe_head *sh,
struct page *tmp_page)
struct bio *bi;
mdk_rdev_t *rdev;
if (test_and_clear_bit(R5_Wantwrite, &sh->dev[i].flags))
- rw = 1;
+ rw = WRITE;
else if (test_and_clear_bit(R5_Wantread, &sh->dev[i].flags))
- rw = 0;
+ rw = READ;
else
continue;
bi = &sh->dev[i].req;
bi->bi_rw = rw;
- if (rw)
+ if (rw == WRITE)
bi->bi_end_io = raid5_end_write_request;
else
bi->bi_end_io = raid5_end_read_request;
@@ -2415,7 +2415,7 @@ static void handle_stripe6(struct stripe_head *sh, struct
page *tmp_page)
atomic_add(STRIPE_SECTORS,
&rdev->corrected_errors);
generic_make_request(bi);
} else {
- if (rw == 1)
+ if (rw == WRITE)
set_bit(STRIPE_DEGRADED, &sh->state);
PRINTK("skip op %ld on disc %d for sector %llu\n",
bi->bi_rw, i, (unsigned long long)sh->sector);
@@ -2567,7 +2567,7 @@ static int raid5_mergeable_bvec(request_queue_t *q,
struct bio *bio, struct bio_
unsigned int chunk_sectors = mddev->chunk_size >> 9;
unsigned int bio_sectors = bio->bi_size >> 9;
- if (bio_data_dir(bio))
+ if (bio_data_dir(bio) == WRITE)
return biovec->bv_len; /* always allow writes to be mergeable */
max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors))
<< 9;
@@ -2751,7 +2751,7 @@ static int make_request(request_queue_t *q, struct bio *
bi)
disk_stat_inc(mddev->gendisk, ios[rw]);
disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bi));
- if (bio_data_dir(bi) == READ &&
+ if (rw == READ &&
mddev->reshape_position == MaxSector &&
chunk_aligned_read(q,bi))
return 0;
-
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