block: make variable and argument names more consistent

[net-next-2.6.git] / block / genhd.c

diff --git a/block/genhd.c b/block/genhd.c
index 11038fbc75edcbad32ab138419d152102d926d98..dc9ad4c171e26cb171ed9235e3e724bc355a81f2 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -43,14 +43,14 @@ static inline int major_to_index(int major)
 }
 
 #ifdef CONFIG_PROC_FS
-void blkdev_show(struct seq_file *f, off_t offset)
+void blkdev_show(struct seq_file *seqf, off_t offset)
 {
        struct blk_major_name *dp;
 
        if (offset < BLKDEV_MAJOR_HASH_SIZE) {
                mutex_lock(&block_class_lock);
                for (dp = major_names[offset]; dp; dp = dp->next)
-                       seq_printf(f, "%3d %s\n", dp->major, dp->name);
+                       seq_printf(seqf, "%3d %s\n", dp->major, dp->name);
                mutex_unlock(&block_class_lock);
        }
 }
@@ -157,7 +157,7 @@ void blk_unregister_region(dev_t devt, unsigned long range)
 
 EXPORT_SYMBOL(blk_unregister_region);
 
-static struct kobject *exact_match(dev_t devt, int *part, void *data)
+static struct kobject *exact_match(dev_t devt, int *partno, void *data)
 {
        struct gendisk *p = data;
 
@@ -217,9 +217,9 @@ void unlink_gendisk(struct gendisk *disk)
  * This function gets the structure containing partitioning
  * information for the given device @devt.
  */
-struct gendisk *get_gendisk(dev_t devt, int *part)
+struct gendisk *get_gendisk(dev_t devt, int *partno)
 {
-       struct kobject *kobj = kobj_lookup(bdev_map, devt, part);
+       struct kobject *kobj = kobj_lookup(bdev_map, devt, partno);
        struct device *dev = kobj_to_dev(kobj);
 
        return  kobj ? dev_to_disk(dev) : NULL;
@@ -336,23 +336,12 @@ static void *show_partition_start(struct seq_file *seqf, loff_t *pos)
        return p;
 }
 
-static int show_partition(struct seq_file *part, void *v)
+static int show_partition(struct seq_file *seqf, void *v)
 {
        struct gendisk *sgp = v;
        int n;
        char buf[BDEVNAME_SIZE];
 
-       /*
-        * Print header if start told us to do.  This is to preserve
-        * the original behavior of not printing header if no
-        * partition exists.  This hackery will be removed later with
-        * class iteration clean up.
-        */
-       if (part->private) {
-               seq_puts(part, "major minor  #blocks  name\n\n");
-               part->private = NULL;
-       }
-
        /* Don't show non-partitionable removeable devices or empty devices */
        if (!get_capacity(sgp) ||
                        (sgp->minors == 1 && (sgp->flags & GENHD_FL_REMOVABLE)))
@@ -361,7 +350,7 @@ static int show_partition(struct seq_file *part, void *v)
                return 0;
 
        /* show the full disk and all non-0 size partitions of it */
-       seq_printf(part, "%4d  %4d %10llu %s\n",
+       seq_printf(seqf, "%4d  %4d %10llu %s\n",
                sgp->major, sgp->first_minor,
                (unsigned long long)get_capacity(sgp) >> 1,
                disk_name(sgp, 0, buf));
@@ -370,7 +359,7 @@ static int show_partition(struct seq_file *part, void *v)
                        continue;
                if (sgp->part[n]->nr_sects == 0)
                        continue;
-               seq_printf(part, "%4d  %4d %10llu %s\n",
+               seq_printf(seqf, "%4d  %4d %10llu %s\n",
                        sgp->major, n + 1 + sgp->first_minor,
                        (unsigned long long)sgp->part[n]->nr_sects >> 1 ,
                        disk_name(sgp, n + 1, buf));
@@ -388,7 +377,7 @@ const struct seq_operations partitions_op = {
 #endif
 
 
-static struct kobject *base_probe(dev_t devt, int *part, void *data)
+static struct kobject *base_probe(dev_t devt, int *partno, void *data)
 {
        if (request_module("block-major-%d-%d", MAJOR(devt), MINOR(devt)) > 0)
                /* Make old-style 2.4 aliases work */
@@ -564,7 +553,14 @@ static struct device_type disk_type = {
 };
 
 #ifdef CONFIG_PROC_FS
-static int diskstats_show(struct seq_file *s, void *v)
+/*
+ * aggregate disk stat collector.  Uses the same stats that the sysfs
+ * entries do, above, but makes them available through one seq_file.
+ *
+ * The output looks suspiciously like /proc/partitions with a bunch of
+ * extra fields.
+ */
+static int diskstats_show(struct seq_file *seqf, void *v)
 {
        struct gendisk *gp = v;
        char buf[BDEVNAME_SIZE];
@@ -572,7 +568,7 @@ static int diskstats_show(struct seq_file *s, void *v)
 
        /*
        if (&gp->dev.kobj.entry == block_class.devices.next)
-               seq_puts(s,     "major minor name"
+               seq_puts(seqf,  "major minor name"
                                "     rio rmerge rsect ruse wio wmerge "
                                "wsect wuse running use aveq"
                                "\n\n");
@@ -581,7 +577,7 @@ static int diskstats_show(struct seq_file *s, void *v)
        preempt_disable();
        disk_round_stats(gp);
        preempt_enable();
-       seq_printf(s, "%4d %4d %s %lu %lu %llu %u %lu %lu %llu %u %u %u %u\n",
+       seq_printf(seqf, "%4d %4d %s %lu %lu %llu %u %lu %lu %llu %u %u %u %u\n",
                gp->major, gp->first_minor, disk_name(gp, 0, buf),
                disk_stat_read(gp, ios[0]), disk_stat_read(gp, merges[0]),
                (unsigned long long)disk_stat_read(gp, sectors[0]),
@@ -603,7 +599,7 @@ static int diskstats_show(struct seq_file *s, void *v)
                preempt_disable();
                part_round_stats(hd);
                preempt_enable();
-               seq_printf(s, "%4d %4d %s %lu %lu %llu "
+               seq_printf(seqf, "%4d %4d %s %lu %lu %llu "
                           "%u %lu %lu %llu %u %u %u %u\n",
                           gp->major, n + gp->first_minor + 1,
                           disk_name(gp, n + 1, buf),
@@ -655,7 +651,7 @@ void genhd_media_change_notify(struct gendisk *disk)
 EXPORT_SYMBOL_GPL(genhd_media_change_notify);
 #endif  /*  0  */
 
-dev_t blk_lookup_devt(const char *name, int part)
+dev_t blk_lookup_devt(const char *name, int partno)
 {
        dev_t devt = MKDEV(0, 0);
        struct class_dev_iter iter;
@@ -665,9 +661,9 @@ dev_t blk_lookup_devt(const char *name, int part)
        while ((dev = class_dev_iter_next(&iter))) {
                struct gendisk *disk = dev_to_disk(dev);
 
-               if (!strcmp(dev->bus_id, name) && part < disk->minors) {
+               if (!strcmp(dev->bus_id, name) && partno < disk->minors) {
                        devt = MKDEV(MAJOR(dev->devt),
-                                    MINOR(dev->devt) + part);
+                                    MINOR(dev->devt) + partno);
                        break;
                }
        }
@@ -777,10 +773,10 @@ int bdev_read_only(struct block_device *bdev)
 
 EXPORT_SYMBOL(bdev_read_only);
 
-int invalidate_partition(struct gendisk *disk, int index)
+int invalidate_partition(struct gendisk *disk, int partno)
 {
        int res = 0;
-       struct block_device *bdev = bdget_disk(disk, index);
+       struct block_device *bdev = bdget_disk(disk, partno);
        if (bdev) {
                fsync_bdev(bdev);
                res = __invalidate_device(bdev);