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md: replace the RAID_AUTORUN ioctl with a direct function call 

Instead of using a spcial RAID_AUTORUN ioctl that only exists for
non-modular builds and is only called from the early init code, just
call the actual function directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: NeilBrown <neilb@suse.de>
Acked-by: Song Liu <song@kernel.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2020-06-06 15:00:24 +02:00
parent 4f5b246b37
commit d82fa81c23
3 changed files with 6 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/md/md-autodetect.c
View File

@ -9,6 +9,7 @@
#include <linux/raid/detect.h>
#include <linux/raid/md_u.h>
#include <linux/raid/md_p.h>
#include "md.h"
/*
* When md (and any require personalities) are compiled into the kernel
@ -285,8 +286,6 @@ __setup("md=", md_setup);
static void __init autodetect_raid(void)
{
int fd;
/*
* Since we don't want to detect and use half a raid array, we need to
* wait for the known devices to complete their probing
@ -295,12 +294,7 @@ static void __init autodetect_raid(void)
printk(KERN_INFO "md: If you don't use raid, use raid=noautodetect\n");
wait_for_device_probe();
fd = ksys_open("/dev/md0", 0, 0);
if (fd >= 0) {
ksys_ioctl(fd, RAID_AUTORUN, raid_autopart);
ksys_close(fd);
}
md_autostart_arrays(raid_autopart);
}
void __init md_run_setup(void)

14
drivers/md/md.c
View File

@ -68,10 +68,6 @@
#include "md-bitmap.h"
#include "md-cluster.h"
#ifndef MODULE
static void autostart_arrays(int part);
#endif
/* pers_list is a list of registered personalities protected
* by pers_lock.
* pers_lock does extra service to protect accesses to
@ -7421,7 +7417,6 @@ static inline bool md_ioctl_valid(unsigned int cmd)
case GET_DISK_INFO:
case HOT_ADD_DISK:
case HOT_REMOVE_DISK:
case RAID_AUTORUN:
case RAID_VERSION:
case RESTART_ARRAY_RW:
case RUN_ARRAY:
@ -7467,13 +7462,6 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
case RAID_VERSION:
err = get_version(argp);
goto out;
#ifndef MODULE
case RAID_AUTORUN:
err = 0;
autostart_arrays(arg);
goto out;
#endif
default:;
}
@ -9721,7 +9709,7 @@ void md_autodetect_dev(dev_t dev)
}
}
static void autostart_arrays(int part)
void md_autostart_arrays(int part)
{
struct md_rdev *rdev;
struct detected_devices_node *node_detected_dev;

3
drivers/md/md.h
View File

@ -800,4 +800,7 @@ static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio
!bio->bi_disk->queue->limits.max_write_zeroes_sectors)
mddev->queue->limits.max_write_zeroes_sectors = 0;
}
void md_autostart_arrays(int part);
#endif /* _MD_MD_H */