md updates for 3.18
- a few minor bug fixes - quite a lot of code tidy-up and simplification - remove PRINT_RAID_DEBUG ioctl. I'm fairly sure it is unused, and it isn't particularly useful. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIVAwUAVD9k1jnsnt1WYoG5AQKCaw/9F7jE9PDYtEfJ8ShEWMM0CWNsCKmgqfpV i4RaeVKe1IoA5JOurYk+wvdbWSXGfz5XQ9GX8ptRl9X7ZoG4aJ65v9GHpBamPLrc mB2Lz3zR9AZVYrMDeZym9cSZ6FpZNzzXpJE2O2RslXq3gFI03MObyM8xyeh8ybOD 45nhH+CJ17OFNn5OzzFLhYEAoYDeOS97zAwInWeFlUp14Jl403xnZ3srF2YJ78TR PjcCpxo1IhGEnYE8rDYqH/UjDPzEfAdYrqM5k3NEnuPiqn+KxYNSsbAQGdeMrGUc DO0H8dt6U1U2tq/t/qN8n01uQ7AJ3S3JrTsQxSW/UC1SVfgpztK/a78eA/YSy/zs iZzPP7CpLfF4T945jaQionevZOBFRM+gbrMqeoQTPO2QtfrSGe4Awoht7Z+no3RR dCX0ScO16kHkcAcSXXGZkGtC1DcteEwUfufSdako12exo1k3efc98DsyMw2VfzOM EJcQD1JGYVW+czZM58EEue92TT5jvWnhU5s3PEUMTZrDgSWwTVQC3oNCgDGFKI4X eebpWlG3gEjNrnL5givbBwC2LCfI59R70gpnGhavdKtt9AtpfsMJnj8E3cCqHE9I xR6YPF161KSmKGOG47RK/VJJnq5SmZbxxeShT101uq3SVeqImit6ql3JfAM9HoMD RI2iWG9yma4= =2QEJ -----END PGP SIGNATURE----- Merge tag 'md/3.18' of git://neil.brown.name/md Pull md updates from Neil Brown: - a few minor bug fixes - quite a lot of code tidy-up and simplification - remove PRINT_RAID_DEBUG ioctl. I'm fairly sure it is unused, and it isn't particularly useful. * tag 'md/3.18' of git://neil.brown.name/md: (21 commits) lib/raid6: Add log level to printks md: move EXPORT_SYMBOL to after function in md.c md: discard PRINT_RAID_DEBUG ioctl md: remove MD_BUG() md: clean up 'exit' labels in md_ioctl(). md: remove unnecessary test for MD_MAJOR in md_ioctl() md: don't allow "-sync" to be set for device in an active array. md: remove unwanted white space from md.c md: don't start resync thread directly from md thread. md: Just use RCU when checking for overlap between arrays. md: avoid potential long delay under pers_lock md: simplify export_array() md: discard find_rdev_nr in favour of find_rdev_nr_rcu md: use wait_event() to simplify md_super_wait() md: be more relaxed about stopping an array which isn't started. md/raid1: process_checks doesn't use its return value. md/raid5: fix init_stripe() inconsistencies md/raid10: another memory leak due to reshape. md: use set_bit/clear_bit instead of shift/mask for bi_flags changes. md/raid1: minor typos and reformatting. ...
This commit is contained in:
commit
88ed806abb
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@ -879,7 +879,6 @@ void bitmap_unplug(struct bitmap *bitmap)
|
||||||
{
|
{
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||||||
unsigned long i;
|
unsigned long i;
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int dirty, need_write;
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int dirty, need_write;
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int wait = 0;
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||||||
|
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||||||
if (!bitmap || !bitmap->storage.filemap ||
|
if (!bitmap || !bitmap->storage.filemap ||
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test_bit(BITMAP_STALE, &bitmap->flags))
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test_bit(BITMAP_STALE, &bitmap->flags))
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@ -897,16 +896,13 @@ void bitmap_unplug(struct bitmap *bitmap)
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clear_page_attr(bitmap, i, BITMAP_PAGE_PENDING);
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clear_page_attr(bitmap, i, BITMAP_PAGE_PENDING);
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write_page(bitmap, bitmap->storage.filemap[i], 0);
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write_page(bitmap, bitmap->storage.filemap[i], 0);
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}
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}
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if (dirty)
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wait = 1;
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}
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}
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if (wait) { /* if any writes were performed, we need to wait on them */
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if (bitmap->storage.file)
|
if (bitmap->storage.file)
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wait_event(bitmap->write_wait,
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wait_event(bitmap->write_wait,
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atomic_read(&bitmap->pending_writes)==0);
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atomic_read(&bitmap->pending_writes)==0);
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else
|
else
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md_super_wait(bitmap->mddev);
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md_super_wait(bitmap->mddev);
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}
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if (test_bit(BITMAP_WRITE_ERROR, &bitmap->flags))
|
if (test_bit(BITMAP_WRITE_ERROR, &bitmap->flags))
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bitmap_file_kick(bitmap);
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bitmap_file_kick(bitmap);
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||||||
}
|
}
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||||||
|
|
|
@ -355,7 +355,6 @@ static void linear_status (struct seq_file *seq, struct mddev *mddev)
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seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2);
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seq_printf(seq, " %dk rounding", mddev->chunk_sectors / 2);
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}
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}
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|
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|
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static struct md_personality linear_personality =
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static struct md_personality linear_personality =
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{
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{
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.name = "linear",
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.name = "linear",
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|
@ -379,7 +378,6 @@ static void linear_exit (void)
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unregister_md_personality (&linear_personality);
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unregister_md_personality (&linear_personality);
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}
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}
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|
|
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|
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module_init(linear_init);
|
module_init(linear_init);
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module_exit(linear_exit);
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module_exit(linear_exit);
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MODULE_LICENSE("GPL");
|
MODULE_LICENSE("GPL");
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|
|
509
drivers/md/md.c
509
drivers/md/md.c
File diff suppressed because it is too large
Load Diff
|
@ -439,7 +439,6 @@ struct mddev {
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void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
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void (*sync_super)(struct mddev *mddev, struct md_rdev *rdev);
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};
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};
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|
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static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
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static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
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{
|
{
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int faulty = test_bit(Faulty, &rdev->flags);
|
int faulty = test_bit(Faulty, &rdev->flags);
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|
@ -493,7 +492,6 @@ struct md_personality
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void *(*takeover) (struct mddev *mddev);
|
void *(*takeover) (struct mddev *mddev);
|
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};
|
};
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|
|
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|
|
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struct md_sysfs_entry {
|
struct md_sysfs_entry {
|
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struct attribute attr;
|
struct attribute attr;
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ssize_t (*show)(struct mddev *, char *);
|
ssize_t (*show)(struct mddev *, char *);
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|
|
|
@ -31,7 +31,6 @@
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|
|
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#define NR_RESERVED_BUFS 32
|
#define NR_RESERVED_BUFS 32
|
||||||
|
|
||||||
|
|
||||||
static int multipath_map (struct mpconf *conf)
|
static int multipath_map (struct mpconf *conf)
|
||||||
{
|
{
|
||||||
int i, disks = conf->raid_disks;
|
int i, disks = conf->raid_disks;
|
||||||
|
@ -68,7 +67,6 @@ static void multipath_reschedule_retry (struct multipath_bh *mp_bh)
|
||||||
md_wakeup_thread(mddev->thread);
|
md_wakeup_thread(mddev->thread);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* multipath_end_bh_io() is called when we have finished servicing a multipathed
|
* multipath_end_bh_io() is called when we have finished servicing a multipathed
|
||||||
* operation and are ready to return a success/failure code to the buffer
|
* operation and are ready to return a success/failure code to the buffer
|
||||||
|
@ -242,7 +240,6 @@ static void print_multipath_conf (struct mpconf *conf)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
||||||
{
|
{
|
||||||
struct mpconf *conf = mddev->private;
|
struct mpconf *conf = mddev->private;
|
||||||
|
@ -325,8 +322,6 @@ abort:
|
||||||
return err;
|
return err;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This is a kernel thread which:
|
* This is a kernel thread which:
|
||||||
*
|
*
|
||||||
|
@ -512,7 +507,6 @@ out:
|
||||||
return -EIO;
|
return -EIO;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int multipath_stop (struct mddev *mddev)
|
static int multipath_stop (struct mddev *mddev)
|
||||||
{
|
{
|
||||||
struct mpconf *conf = mddev->private;
|
struct mpconf *conf = mddev->private;
|
||||||
|
|
|
@ -5,7 +5,6 @@
|
||||||
<maz@gloups.fdn.fr>
|
<maz@gloups.fdn.fr>
|
||||||
Copyright (C) 1999, 2000 Ingo Molnar, Red Hat
|
Copyright (C) 1999, 2000 Ingo Molnar, Red Hat
|
||||||
|
|
||||||
|
|
||||||
RAID-0 management functions.
|
RAID-0 management functions.
|
||||||
|
|
||||||
This program is free software; you can redistribute it and/or modify
|
This program is free software; you can redistribute it and/or modify
|
||||||
|
|
|
@ -494,7 +494,6 @@ static void raid1_end_write_request(struct bio *bio, int error)
|
||||||
bio_put(to_put);
|
bio_put(to_put);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* This routine returns the disk from which the requested read should
|
* This routine returns the disk from which the requested read should
|
||||||
* be done. There is a per-array 'next expected sequential IO' sector
|
* be done. There is a per-array 'next expected sequential IO' sector
|
||||||
|
@ -901,10 +900,10 @@ static sector_t wait_barrier(struct r1conf *conf, struct bio *bio)
|
||||||
* However if there are already pending
|
* However if there are already pending
|
||||||
* requests (preventing the barrier from
|
* requests (preventing the barrier from
|
||||||
* rising completely), and the
|
* rising completely), and the
|
||||||
* pre-process bio queue isn't empty,
|
* per-process bio queue isn't empty,
|
||||||
* then don't wait, as we need to empty
|
* then don't wait, as we need to empty
|
||||||
* that queue to get the nr_pending
|
* that queue to allow conf->start_next_window
|
||||||
* count down.
|
* to increase.
|
||||||
*/
|
*/
|
||||||
wait_event_lock_irq(conf->wait_barrier,
|
wait_event_lock_irq(conf->wait_barrier,
|
||||||
!conf->array_frozen &&
|
!conf->array_frozen &&
|
||||||
|
@ -1001,7 +1000,6 @@ static void unfreeze_array(struct r1conf *conf)
|
||||||
spin_unlock_irq(&conf->resync_lock);
|
spin_unlock_irq(&conf->resync_lock);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* duplicate the data pages for behind I/O
|
/* duplicate the data pages for behind I/O
|
||||||
*/
|
*/
|
||||||
static void alloc_behind_pages(struct bio *bio, struct r1bio *r1_bio)
|
static void alloc_behind_pages(struct bio *bio, struct r1bio *r1_bio)
|
||||||
|
@ -1471,7 +1469,6 @@ static void status(struct seq_file *seq, struct mddev *mddev)
|
||||||
seq_printf(seq, "]");
|
seq_printf(seq, "]");
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void error(struct mddev *mddev, struct md_rdev *rdev)
|
static void error(struct mddev *mddev, struct md_rdev *rdev)
|
||||||
{
|
{
|
||||||
char b[BDEVNAME_SIZE];
|
char b[BDEVNAME_SIZE];
|
||||||
|
@ -1606,7 +1603,6 @@ static int raid1_spare_active(struct mddev *mddev)
|
||||||
return count;
|
return count;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
||||||
{
|
{
|
||||||
struct r1conf *conf = mddev->private;
|
struct r1conf *conf = mddev->private;
|
||||||
|
@ -1735,7 +1731,6 @@ abort:
|
||||||
return err;
|
return err;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void end_sync_read(struct bio *bio, int error)
|
static void end_sync_read(struct bio *bio, int error)
|
||||||
{
|
{
|
||||||
struct r1bio *r1_bio = bio->bi_private;
|
struct r1bio *r1_bio = bio->bi_private;
|
||||||
|
@ -1947,7 +1942,7 @@ static int fix_sync_read_error(struct r1bio *r1_bio)
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
static int process_checks(struct r1bio *r1_bio)
|
static void process_checks(struct r1bio *r1_bio)
|
||||||
{
|
{
|
||||||
/* We have read all readable devices. If we haven't
|
/* We have read all readable devices. If we haven't
|
||||||
* got the block, then there is no hope left.
|
* got the block, then there is no hope left.
|
||||||
|
@ -2039,7 +2034,6 @@ static int process_checks(struct r1bio *r1_bio)
|
||||||
|
|
||||||
bio_copy_data(sbio, pbio);
|
bio_copy_data(sbio, pbio);
|
||||||
}
|
}
|
||||||
return 0;
|
|
||||||
}
|
}
|
||||||
|
|
||||||
static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
|
static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
|
||||||
|
@ -2057,8 +2051,8 @@ static void sync_request_write(struct mddev *mddev, struct r1bio *r1_bio)
|
||||||
return;
|
return;
|
||||||
|
|
||||||
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
|
if (test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
|
||||||
if (process_checks(r1_bio) < 0)
|
process_checks(r1_bio);
|
||||||
return;
|
|
||||||
/*
|
/*
|
||||||
* schedule writes
|
* schedule writes
|
||||||
*/
|
*/
|
||||||
|
@ -2458,7 +2452,6 @@ static void raid1d(struct md_thread *thread)
|
||||||
blk_finish_plug(&plug);
|
blk_finish_plug(&plug);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int init_resync(struct r1conf *conf)
|
static int init_resync(struct r1conf *conf)
|
||||||
{
|
{
|
||||||
int buffs;
|
int buffs;
|
||||||
|
@ -2722,7 +2715,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, int *skipp
|
||||||
/* remove last page from this bio */
|
/* remove last page from this bio */
|
||||||
bio->bi_vcnt--;
|
bio->bi_vcnt--;
|
||||||
bio->bi_iter.bi_size -= len;
|
bio->bi_iter.bi_size -= len;
|
||||||
bio->bi_flags &= ~(1<< BIO_SEG_VALID);
|
__clear_bit(BIO_SEG_VALID, &bio->bi_flags);
|
||||||
}
|
}
|
||||||
goto bio_full;
|
goto bio_full;
|
||||||
}
|
}
|
||||||
|
|
|
@ -90,7 +90,6 @@ struct r1conf {
|
||||||
*/
|
*/
|
||||||
int recovery_disabled;
|
int recovery_disabled;
|
||||||
|
|
||||||
|
|
||||||
/* poolinfo contains information about the content of the
|
/* poolinfo contains information about the content of the
|
||||||
* mempools - it changes when the array grows or shrinks
|
* mempools - it changes when the array grows or shrinks
|
||||||
*/
|
*/
|
||||||
|
@ -103,7 +102,6 @@ struct r1conf {
|
||||||
*/
|
*/
|
||||||
struct page *tmppage;
|
struct page *tmppage;
|
||||||
|
|
||||||
|
|
||||||
/* When taking over an array from a different personality, we store
|
/* When taking over an array from a different personality, we store
|
||||||
* the new thread here until we fully activate the array.
|
* the new thread here until we fully activate the array.
|
||||||
*/
|
*/
|
||||||
|
|
|
@ -366,7 +366,6 @@ static void raid10_end_read_request(struct bio *bio, int error)
|
||||||
struct md_rdev *rdev;
|
struct md_rdev *rdev;
|
||||||
struct r10conf *conf = r10_bio->mddev->private;
|
struct r10conf *conf = r10_bio->mddev->private;
|
||||||
|
|
||||||
|
|
||||||
slot = r10_bio->read_slot;
|
slot = r10_bio->read_slot;
|
||||||
dev = r10_bio->devs[slot].devnum;
|
dev = r10_bio->devs[slot].devnum;
|
||||||
rdev = r10_bio->devs[slot].rdev;
|
rdev = r10_bio->devs[slot].rdev;
|
||||||
|
@ -1559,7 +1558,6 @@ static void make_request(struct mddev *mddev, struct bio *bio)
|
||||||
|
|
||||||
md_write_start(mddev, bio);
|
md_write_start(mddev, bio);
|
||||||
|
|
||||||
|
|
||||||
do {
|
do {
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -1782,7 +1780,6 @@ static int raid10_spare_active(struct mddev *mddev)
|
||||||
return count;
|
return count;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
|
||||||
{
|
{
|
||||||
struct r10conf *conf = mddev->private;
|
struct r10conf *conf = mddev->private;
|
||||||
|
@ -1929,7 +1926,6 @@ abort:
|
||||||
return err;
|
return err;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void end_sync_read(struct bio *bio, int error)
|
static void end_sync_read(struct bio *bio, int error)
|
||||||
{
|
{
|
||||||
struct r10bio *r10_bio = bio->bi_private;
|
struct r10bio *r10_bio = bio->bi_private;
|
||||||
|
@ -2295,7 +2291,6 @@ static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Used by fix_read_error() to decay the per rdev read_errors.
|
* Used by fix_read_error() to decay the per rdev read_errors.
|
||||||
* We halve the read error count for every hour that has elapsed
|
* We halve the read error count for every hour that has elapsed
|
||||||
|
@ -2852,7 +2847,6 @@ static void raid10d(struct md_thread *thread)
|
||||||
blk_finish_plug(&plug);
|
blk_finish_plug(&plug);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int init_resync(struct r10conf *conf)
|
static int init_resync(struct r10conf *conf)
|
||||||
{
|
{
|
||||||
int buffs;
|
int buffs;
|
||||||
|
@ -3388,7 +3382,7 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr,
|
||||||
/* remove last page from this bio */
|
/* remove last page from this bio */
|
||||||
bio2->bi_vcnt--;
|
bio2->bi_vcnt--;
|
||||||
bio2->bi_iter.bi_size -= len;
|
bio2->bi_iter.bi_size -= len;
|
||||||
bio2->bi_flags &= ~(1<< BIO_SEG_VALID);
|
__clear_bit(BIO_SEG_VALID, &bio2->bi_flags);
|
||||||
}
|
}
|
||||||
goto bio_full;
|
goto bio_full;
|
||||||
}
|
}
|
||||||
|
@ -3776,7 +3770,6 @@ static int run(struct mddev *mddev)
|
||||||
blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec);
|
blk_queue_merge_bvec(mddev->queue, raid10_mergeable_bvec);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
if (md_integrity_register(mddev))
|
if (md_integrity_register(mddev))
|
||||||
goto out_free_conf;
|
goto out_free_conf;
|
||||||
|
|
||||||
|
@ -3834,6 +3827,8 @@ static int stop(struct mddev *mddev)
|
||||||
mempool_destroy(conf->r10bio_pool);
|
mempool_destroy(conf->r10bio_pool);
|
||||||
safe_put_page(conf->tmppage);
|
safe_put_page(conf->tmppage);
|
||||||
kfree(conf->mirrors);
|
kfree(conf->mirrors);
|
||||||
|
kfree(conf->mirrors_old);
|
||||||
|
kfree(conf->mirrors_new);
|
||||||
kfree(conf);
|
kfree(conf);
|
||||||
mddev->private = NULL;
|
mddev->private = NULL;
|
||||||
return 0;
|
return 0;
|
||||||
|
@ -4121,7 +4116,7 @@ static int raid10_start_reshape(struct mddev *mddev)
|
||||||
memcpy(conf->mirrors_new, conf->mirrors,
|
memcpy(conf->mirrors_new, conf->mirrors,
|
||||||
sizeof(struct raid10_info)*conf->prev.raid_disks);
|
sizeof(struct raid10_info)*conf->prev.raid_disks);
|
||||||
smp_mb();
|
smp_mb();
|
||||||
kfree(conf->mirrors_old); /* FIXME and elsewhere */
|
kfree(conf->mirrors_old);
|
||||||
conf->mirrors_old = conf->mirrors;
|
conf->mirrors_old = conf->mirrors;
|
||||||
conf->mirrors = conf->mirrors_new;
|
conf->mirrors = conf->mirrors_new;
|
||||||
conf->mirrors_new = NULL;
|
conf->mirrors_new = NULL;
|
||||||
|
@ -4416,7 +4411,7 @@ read_more:
|
||||||
read_bio->bi_end_io = end_sync_read;
|
read_bio->bi_end_io = end_sync_read;
|
||||||
read_bio->bi_rw = READ;
|
read_bio->bi_rw = READ;
|
||||||
read_bio->bi_flags &= (~0UL << BIO_RESET_BITS);
|
read_bio->bi_flags &= (~0UL << BIO_RESET_BITS);
|
||||||
read_bio->bi_flags |= 1 << BIO_UPTODATE;
|
__set_bit(BIO_UPTODATE, &read_bio->bi_flags);
|
||||||
read_bio->bi_vcnt = 0;
|
read_bio->bi_vcnt = 0;
|
||||||
read_bio->bi_iter.bi_size = 0;
|
read_bio->bi_iter.bi_size = 0;
|
||||||
r10_bio->master_bio = read_bio;
|
r10_bio->master_bio = read_bio;
|
||||||
|
@ -4473,7 +4468,7 @@ read_more:
|
||||||
/* Remove last page from this bio */
|
/* Remove last page from this bio */
|
||||||
bio2->bi_vcnt--;
|
bio2->bi_vcnt--;
|
||||||
bio2->bi_iter.bi_size -= len;
|
bio2->bi_iter.bi_size -= len;
|
||||||
bio2->bi_flags &= ~(1<<BIO_SEG_VALID);
|
__clear_bit(BIO_SEG_VALID, &bio2->bi_flags);
|
||||||
}
|
}
|
||||||
goto bio_full;
|
goto bio_full;
|
||||||
}
|
}
|
||||||
|
@ -4575,7 +4570,6 @@ static void end_reshape(struct r10conf *conf)
|
||||||
conf->fullsync = 0;
|
conf->fullsync = 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int handle_reshape_read_error(struct mddev *mddev,
|
static int handle_reshape_read_error(struct mddev *mddev,
|
||||||
struct r10bio *r10_bio)
|
struct r10bio *r10_bio)
|
||||||
{
|
{
|
||||||
|
|
|
@ -463,7 +463,6 @@ static inline void insert_hash(struct r5conf *conf, struct stripe_head *sh)
|
||||||
hlist_add_head(&sh->hash, hp);
|
hlist_add_head(&sh->hash, hp);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* find an idle stripe, make sure it is unhashed, and return it. */
|
/* find an idle stripe, make sure it is unhashed, and return it. */
|
||||||
static struct stripe_head *get_free_stripe(struct r5conf *conf, int hash)
|
static struct stripe_head *get_free_stripe(struct r5conf *conf, int hash)
|
||||||
{
|
{
|
||||||
|
@ -531,9 +530,7 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int previous)
|
||||||
BUG_ON(stripe_operations_active(sh));
|
BUG_ON(stripe_operations_active(sh));
|
||||||
|
|
||||||
pr_debug("init_stripe called, stripe %llu\n",
|
pr_debug("init_stripe called, stripe %llu\n",
|
||||||
(unsigned long long)sh->sector);
|
(unsigned long long)sector);
|
||||||
|
|
||||||
remove_hash(sh);
|
|
||||||
retry:
|
retry:
|
||||||
seq = read_seqcount_begin(&conf->gen_lock);
|
seq = read_seqcount_begin(&conf->gen_lock);
|
||||||
sh->generation = conf->generation - previous;
|
sh->generation = conf->generation - previous;
|
||||||
|
@ -542,7 +539,6 @@ retry:
|
||||||
stripe_set_idx(sector, conf, previous, sh);
|
stripe_set_idx(sector, conf, previous, sh);
|
||||||
sh->state = 0;
|
sh->state = 0;
|
||||||
|
|
||||||
|
|
||||||
for (i = sh->disks; i--; ) {
|
for (i = sh->disks; i--; ) {
|
||||||
struct r5dev *dev = &sh->dev[i];
|
struct r5dev *dev = &sh->dev[i];
|
||||||
|
|
||||||
|
@ -1350,7 +1346,6 @@ ops_run_compute6_2(struct stripe_head *sh, struct raid5_percpu *percpu)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void ops_complete_prexor(void *stripe_head_ref)
|
static void ops_complete_prexor(void *stripe_head_ref)
|
||||||
{
|
{
|
||||||
struct stripe_head *sh = stripe_head_ref;
|
struct stripe_head *sh = stripe_head_ref;
|
||||||
|
@ -2419,7 +2414,6 @@ static sector_t raid5_compute_sector(struct r5conf *conf, sector_t r_sector,
|
||||||
return new_sector;
|
return new_sector;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
|
static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
|
||||||
{
|
{
|
||||||
struct r5conf *conf = sh->raid_conf;
|
struct r5conf *conf = sh->raid_conf;
|
||||||
|
@ -2437,7 +2431,6 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
|
||||||
sector_t r_sector;
|
sector_t r_sector;
|
||||||
struct stripe_head sh2;
|
struct stripe_head sh2;
|
||||||
|
|
||||||
|
|
||||||
chunk_offset = sector_div(new_sector, sectors_per_chunk);
|
chunk_offset = sector_div(new_sector, sectors_per_chunk);
|
||||||
stripe = new_sector;
|
stripe = new_sector;
|
||||||
|
|
||||||
|
@ -2541,7 +2534,6 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i, int previous)
|
||||||
return r_sector;
|
return r_sector;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void
|
static void
|
||||||
schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s,
|
schedule_reconstruction(struct stripe_head *sh, struct stripe_head_state *s,
|
||||||
int rcw, int expand)
|
int rcw, int expand)
|
||||||
|
@ -3013,7 +3005,6 @@ static void handle_stripe_fill(struct stripe_head *sh,
|
||||||
set_bit(STRIPE_HANDLE, &sh->state);
|
set_bit(STRIPE_HANDLE, &sh->state);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* handle_stripe_clean_event
|
/* handle_stripe_clean_event
|
||||||
* any written block on an uptodate or failed drive can be returned.
|
* any written block on an uptodate or failed drive can be returned.
|
||||||
* Note that if we 'wrote' to a failed drive, it will be UPTODATE, but
|
* Note that if we 'wrote' to a failed drive, it will be UPTODATE, but
|
||||||
|
@ -3304,7 +3295,6 @@ static void handle_parity_checks5(struct r5conf *conf, struct stripe_head *sh,
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
|
static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
|
||||||
struct stripe_head_state *s,
|
struct stripe_head_state *s,
|
||||||
int disks)
|
int disks)
|
||||||
|
@ -3939,7 +3929,6 @@ static void handle_stripe(struct stripe_head *sh)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* Finish reconstruct operations initiated by the expansion process */
|
/* Finish reconstruct operations initiated by the expansion process */
|
||||||
if (sh->reconstruct_state == reconstruct_state_result) {
|
if (sh->reconstruct_state == reconstruct_state_result) {
|
||||||
struct stripe_head *sh_src
|
struct stripe_head *sh_src
|
||||||
|
@ -4137,7 +4126,6 @@ static int raid5_mergeable_bvec(struct request_queue *q,
|
||||||
return max;
|
return max;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
|
static int in_chunk_boundary(struct mddev *mddev, struct bio *bio)
|
||||||
{
|
{
|
||||||
sector_t sector = bio->bi_iter.bi_sector + get_start_sect(bio->bi_bdev);
|
sector_t sector = bio->bi_iter.bi_sector + get_start_sect(bio->bi_bdev);
|
||||||
|
@ -4167,7 +4155,6 @@ static void add_bio_to_retry(struct bio *bi,struct r5conf *conf)
|
||||||
md_wakeup_thread(conf->mddev->thread);
|
md_wakeup_thread(conf->mddev->thread);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static struct bio *remove_bio_from_retry(struct r5conf *conf)
|
static struct bio *remove_bio_from_retry(struct r5conf *conf)
|
||||||
{
|
{
|
||||||
struct bio *bi;
|
struct bio *bi;
|
||||||
|
@ -4191,7 +4178,6 @@ static struct bio *remove_bio_from_retry(struct r5conf *conf)
|
||||||
return bi;
|
return bi;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* The "raid5_align_endio" should check if the read succeeded and if it
|
* The "raid5_align_endio" should check if the read succeeded and if it
|
||||||
* did, call bio_endio on the original bio (having bio_put the new bio
|
* did, call bio_endio on the original bio (having bio_put the new bio
|
||||||
|
@ -4224,7 +4210,6 @@ static void raid5_align_endio(struct bio *bi, int error)
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
pr_debug("raid5_align_endio : io error...handing IO for a retry\n");
|
pr_debug("raid5_align_endio : io error...handing IO for a retry\n");
|
||||||
|
|
||||||
add_bio_to_retry(raid_bi, conf);
|
add_bio_to_retry(raid_bi, conf);
|
||||||
|
@ -4249,7 +4234,6 @@ static int bio_fits_rdev(struct bio *bi)
|
||||||
return 1;
|
return 1;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
|
static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
|
||||||
{
|
{
|
||||||
struct r5conf *conf = mddev->private;
|
struct r5conf *conf = mddev->private;
|
||||||
|
@ -4301,7 +4285,7 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio)
|
||||||
rcu_read_unlock();
|
rcu_read_unlock();
|
||||||
raid_bio->bi_next = (void*)rdev;
|
raid_bio->bi_next = (void*)rdev;
|
||||||
align_bi->bi_bdev = rdev->bdev;
|
align_bi->bi_bdev = rdev->bdev;
|
||||||
align_bi->bi_flags &= ~(1 << BIO_SEG_VALID);
|
__clear_bit(BIO_SEG_VALID, &align_bi->bi_flags);
|
||||||
|
|
||||||
if (!bio_fits_rdev(align_bi) ||
|
if (!bio_fits_rdev(align_bi) ||
|
||||||
is_badblock(rdev, align_bi->bi_iter.bi_sector,
|
is_badblock(rdev, align_bi->bi_iter.bi_sector,
|
||||||
|
@ -5446,7 +5430,6 @@ raid5_skip_copy = __ATTR(skip_copy, S_IRUGO | S_IWUSR,
|
||||||
raid5_show_skip_copy,
|
raid5_show_skip_copy,
|
||||||
raid5_store_skip_copy);
|
raid5_store_skip_copy);
|
||||||
|
|
||||||
|
|
||||||
static ssize_t
|
static ssize_t
|
||||||
stripe_cache_active_show(struct mddev *mddev, char *page)
|
stripe_cache_active_show(struct mddev *mddev, char *page)
|
||||||
{
|
{
|
||||||
|
@ -5898,7 +5881,6 @@ static struct r5conf *setup_conf(struct mddev *mddev)
|
||||||
return ERR_PTR(-ENOMEM);
|
return ERR_PTR(-ENOMEM);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int only_parity(int raid_disk, int algo, int raid_disks, int max_degraded)
|
static int only_parity(int raid_disk, int algo, int raid_disks, int max_degraded)
|
||||||
{
|
{
|
||||||
switch (algo) {
|
switch (algo) {
|
||||||
|
@ -6165,7 +6147,6 @@ static int run(struct mddev *mddev)
|
||||||
"reshape");
|
"reshape");
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
/* Ok, everything is just fine now */
|
/* Ok, everything is just fine now */
|
||||||
if (mddev->to_remove == &raid5_attrs_group)
|
if (mddev->to_remove == &raid5_attrs_group)
|
||||||
mddev->to_remove = NULL;
|
mddev->to_remove = NULL;
|
||||||
|
@ -6814,7 +6795,6 @@ static void raid5_quiesce(struct mddev *mddev, int state)
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void *raid45_takeover_raid0(struct mddev *mddev, int level)
|
static void *raid45_takeover_raid0(struct mddev *mddev, int level)
|
||||||
{
|
{
|
||||||
struct r0conf *raid0_conf = mddev->private;
|
struct r0conf *raid0_conf = mddev->private;
|
||||||
|
@ -6841,7 +6821,6 @@ static void *raid45_takeover_raid0(struct mddev *mddev, int level)
|
||||||
return setup_conf(mddev);
|
return setup_conf(mddev);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static void *raid5_takeover_raid1(struct mddev *mddev)
|
static void *raid5_takeover_raid1(struct mddev *mddev)
|
||||||
{
|
{
|
||||||
int chunksect;
|
int chunksect;
|
||||||
|
@ -6902,7 +6881,6 @@ static void *raid5_takeover_raid6(struct mddev *mddev)
|
||||||
return setup_conf(mddev);
|
return setup_conf(mddev);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static int raid5_check_reshape(struct mddev *mddev)
|
static int raid5_check_reshape(struct mddev *mddev)
|
||||||
{
|
{
|
||||||
/* For a 2-drive array, the layout and chunk size can be changed
|
/* For a 2-drive array, the layout and chunk size can be changed
|
||||||
|
@ -7051,7 +7029,6 @@ static void *raid6_takeover(struct mddev *mddev)
|
||||||
return setup_conf(mddev);
|
return setup_conf(mddev);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
||||||
static struct md_personality raid6_personality =
|
static struct md_personality raid6_personality =
|
||||||
{
|
{
|
||||||
.name = "raid6",
|
.name = "raid6",
|
||||||
|
|
|
@ -364,7 +364,6 @@ enum {
|
||||||
* HANDLE gets cleared if stripe_handle leaves nothing locked.
|
* HANDLE gets cleared if stripe_handle leaves nothing locked.
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
|
||||||
struct disk_info {
|
struct disk_info {
|
||||||
struct md_rdev *rdev, *replacement;
|
struct md_rdev *rdev, *replacement;
|
||||||
};
|
};
|
||||||
|
@ -528,7 +527,6 @@ struct r5conf {
|
||||||
#define ALGORITHM_ROTATING_N_RESTART 9 /* DDF PRL=6 RLQ=2 */
|
#define ALGORITHM_ROTATING_N_RESTART 9 /* DDF PRL=6 RLQ=2 */
|
||||||
#define ALGORITHM_ROTATING_N_CONTINUE 10 /*DDF PRL=6 RLQ=3 */
|
#define ALGORITHM_ROTATING_N_CONTINUE 10 /*DDF PRL=6 RLQ=3 */
|
||||||
|
|
||||||
|
|
||||||
/* For every RAID5 algorithm we define a RAID6 algorithm
|
/* For every RAID5 algorithm we define a RAID6 algorithm
|
||||||
* with exactly the same layout for data and parity, and
|
* with exactly the same layout for data and parity, and
|
||||||
* with the Q block always on the last device (N-1).
|
* with the Q block always on the last device (N-1).
|
||||||
|
|
|
@ -39,7 +39,6 @@
|
||||||
#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
|
#define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t)
|
||||||
#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
|
#define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t)
|
||||||
#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
|
#define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t)
|
||||||
#define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13)
|
|
||||||
#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
|
#define RAID_AUTORUN _IO (MD_MAJOR, 0x14)
|
||||||
#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
|
#define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t)
|
||||||
|
|
||||||
|
|
|
@ -121,9 +121,9 @@ static inline const struct raid6_recov_calls *raid6_choose_recov(void)
|
||||||
raid6_2data_recov = best->data2;
|
raid6_2data_recov = best->data2;
|
||||||
raid6_datap_recov = best->datap;
|
raid6_datap_recov = best->datap;
|
||||||
|
|
||||||
printk("raid6: using %s recovery algorithm\n", best->name);
|
pr_info("raid6: using %s recovery algorithm\n", best->name);
|
||||||
} else
|
} else
|
||||||
printk("raid6: Yikes! No recovery algorithm found!\n");
|
pr_err("raid6: Yikes! No recovery algorithm found!\n");
|
||||||
|
|
||||||
return best;
|
return best;
|
||||||
}
|
}
|
||||||
|
@ -157,18 +157,18 @@ static inline const struct raid6_calls *raid6_choose_gen(
|
||||||
bestperf = perf;
|
bestperf = perf;
|
||||||
best = *algo;
|
best = *algo;
|
||||||
}
|
}
|
||||||
printk("raid6: %-8s %5ld MB/s\n", (*algo)->name,
|
pr_info("raid6: %-8s %5ld MB/s\n", (*algo)->name,
|
||||||
(perf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
|
(perf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
if (best) {
|
if (best) {
|
||||||
printk("raid6: using algorithm %s (%ld MB/s)\n",
|
pr_info("raid6: using algorithm %s (%ld MB/s)\n",
|
||||||
best->name,
|
best->name,
|
||||||
(bestperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
|
(bestperf*HZ) >> (20-16+RAID6_TIME_JIFFIES_LG2));
|
||||||
raid6_call = *best;
|
raid6_call = *best;
|
||||||
} else
|
} else
|
||||||
printk("raid6: Yikes! No algorithm found!\n");
|
pr_err("raid6: Yikes! No algorithm found!\n");
|
||||||
|
|
||||||
return best;
|
return best;
|
||||||
}
|
}
|
||||||
|
@ -194,7 +194,7 @@ int __init raid6_select_algo(void)
|
||||||
syndromes = (void *) __get_free_pages(GFP_KERNEL, 1);
|
syndromes = (void *) __get_free_pages(GFP_KERNEL, 1);
|
||||||
|
|
||||||
if (!syndromes) {
|
if (!syndromes) {
|
||||||
printk("raid6: Yikes! No memory available.\n");
|
pr_err("raid6: Yikes! No memory available.\n");
|
||||||
return -ENOMEM;
|
return -ENOMEM;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue