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-rw-r--r--block/genhd.c37
1 files changed, 35 insertions, 2 deletions
diff --git a/block/genhd.c b/block/genhd.c
index 646e1d2507c7..4e5e7493f676 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -10,6 +10,7 @@
10#include <linux/blkdev.h> 10#include <linux/blkdev.h>
11#include <linux/init.h> 11#include <linux/init.h>
12#include <linux/spinlock.h> 12#include <linux/spinlock.h>
13#include <linux/proc_fs.h>
13#include <linux/seq_file.h> 14#include <linux/seq_file.h>
14#include <linux/slab.h> 15#include <linux/slab.h>
15#include <linux/kmod.h> 16#include <linux/kmod.h>
@@ -727,12 +728,24 @@ static int show_partition(struct seq_file *seqf, void *v)
727 return 0; 728 return 0;
728} 729}
729 730
730const struct seq_operations partitions_op = { 731static const struct seq_operations partitions_op = {
731 .start = show_partition_start, 732 .start = show_partition_start,
732 .next = disk_seqf_next, 733 .next = disk_seqf_next,
733 .stop = disk_seqf_stop, 734 .stop = disk_seqf_stop,
734 .show = show_partition 735 .show = show_partition
735}; 736};
737
738static int partitions_open(struct inode *inode, struct file *file)
739{
740 return seq_open(file, &partitions_op);
741}
742
743static const struct file_operations proc_partitions_operations = {
744 .open = partitions_open,
745 .read = seq_read,
746 .llseek = seq_lseek,
747 .release = seq_release,
748};
736#endif 749#endif
737 750
738 751
@@ -992,12 +1005,32 @@ static int diskstats_show(struct seq_file *seqf, void *v)
992 return 0; 1005 return 0;
993} 1006}
994 1007
995const struct seq_operations diskstats_op = { 1008static const struct seq_operations diskstats_op = {
996 .start = disk_seqf_start, 1009 .start = disk_seqf_start,
997 .next = disk_seqf_next, 1010 .next = disk_seqf_next,
998 .stop = disk_seqf_stop, 1011 .stop = disk_seqf_stop,
999 .show = diskstats_show 1012 .show = diskstats_show
1000}; 1013};
1014
1015static int diskstats_open(struct inode *inode, struct file *file)
1016{
1017 return seq_open(file, &diskstats_op);
1018}
1019
1020static const struct file_operations proc_diskstats_operations = {
1021 .open = diskstats_open,
1022 .read = seq_read,
1023 .llseek = seq_lseek,
1024 .release = seq_release,
1025};
1026
1027static int __init proc_genhd_init(void)
1028{
1029 proc_create("diskstats", 0, NULL, &proc_diskstats_operations);
1030 proc_create("partitions", 0, NULL, &proc_partitions_operations);
1031 return 0;
1032}
1033module_init(proc_genhd_init);
1001#endif /* CONFIG_PROC_FS */ 1034#endif /* CONFIG_PROC_FS */
1002 1035
1003static void media_change_notify_thread(struct work_struct *work) 1036static void media_change_notify_thread(struct work_struct *work)