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author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-08-13 15:39:10 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-08-13 15:39:10 -0400 |
commit | 0980bd9cd32de2fef7eaa2858345c49d14498625 (patch) | |
tree | 41f5f823d0569a81b22037e79c22d823933a63f1 /drivers/md/raid1.h | |
parent | 78821b2c0299ab807d483802f09897728b93bce0 (diff) | |
parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) |
Merge commit 'v3.6-rc1' into linux-next
* commit 'v3.6-rc1': (9532 commits)
Linux 3.6-rc1
mm: remove node_start_pfn checking in new WARN_ON for now
ARM: mmp: add missing irqs.h
arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
libceph: fix crypto key null deref, memory leak
ceph: simplify+fix atomic_open
sh: explicitly include sh_dma.h in setup-sh7722.c
um: Add arch/x86/um to MAINTAINERS
um: pass siginfo to guest process
um: fix ubd_file_size for read-only files
md/dm-raid: DM_RAID should select MD_RAID10
md/raid1: submit IO from originating thread instead of md thread.
raid5: raid5d handle stripe in batch way
raid5: make_request use batch stripe release
um: pull interrupt_end() into userspace()
um: split syscall_trace(), pass pt_regs to it
um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
MIPS: Loongson 2: Sort out clock managment.
locks: remove unused lm_release_private
...
Diffstat (limited to 'drivers/md/raid1.h')
-rw-r--r-- | drivers/md/raid1.h | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h index 80ded139314c..0ff3715fb7eb 100644 --- a/drivers/md/raid1.h +++ b/drivers/md/raid1.h @@ -1,9 +1,15 @@ #ifndef _RAID1_H #define _RAID1_H -struct mirror_info { +struct raid1_info { struct md_rdev *rdev; sector_t head_position; + + /* When choose the best device for a read (read_balance()) + * we try to keep sequential reads one the same device + */ + sector_t next_seq_sect; + sector_t seq_start; }; /* @@ -24,17 +30,11 @@ struct pool_info { struct r1conf { struct mddev *mddev; - struct mirror_info *mirrors; /* twice 'raid_disks' to + struct raid1_info *mirrors; /* twice 'raid_disks' to * allow for replacements. */ int raid_disks; - /* When choose the best device for a read (read_balance()) - * we try to keep sequential reads one the same device - * using 'last_used' and 'next_seq_sect' - */ - int last_used; - sector_t next_seq_sect; /* During resync, read_balancing is only allowed on the part * of the array that has been resynced. 'next_resync' tells us * where that is. @@ -135,20 +135,6 @@ struct r1bio { /* DO NOT PUT ANY NEW FIELDS HERE - bios array is contiguously alloced*/ }; -/* when we get a read error on a read-only array, we redirect to another - * device without failing the first device, or trying to over-write to - * correct the read error. To keep track of bad blocks on a per-bio - * level, we store IO_BLOCKED in the appropriate 'bios' pointer - */ -#define IO_BLOCKED ((struct bio *)1) -/* When we successfully write to a known bad-block, we need to remove the - * bad-block marking which must be done from process context. So we record - * the success by setting bios[n] to IO_MADE_GOOD - */ -#define IO_MADE_GOOD ((struct bio *)2) - -#define BIO_SPECIAL(bio) ((unsigned long)bio <= 2) - /* bits for r1bio.state */ #define R1BIO_Uptodate 0 #define R1BIO_IsSync 1 |