Displaying 4 results from an estimated 4 matches for "stripe_nr".
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stripe_end
2010 Jan 04
0
[RFC 03/12 RESEND PATCH] Btrfs: Reorder __btrfs_map_block to make code more efficient.
...rtions(+), 41 deletions(-)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5af76fc..e6599ef 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2625,26 +2625,12 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw,
u64 offset;
u64 stripe_offset;
u64 stripe_nr;
- int stripes_allocated = 8;
- int stripes_required = 1;
int stripe_index;
int i;
int num_stripes;
- int max_errors = 0;
+ int max_errors;
struct btrfs_multi_bio *multi = NULL;
- if (multi_ret && !(rw & (1 << BIO_RW)))
- stripes_allocated = 1;
-again:
- if (multi_ret)...
2012 Jan 11
12
[PATCH 00/11] Btrfs: some patches for 3.3
The biggest one is a fix for fstrim, and there''s a fix for on-disk
free space cache. Others are small fixes and cleanups.
The last three have been sent weeks ago.
The patchset is also available in this repo:
git://repo.or.cz/linux-btrfs-devel.git for-chris
Note there''s a small confict with Al Viro''s vfs changes.
Li Zefan (11):
Btrfs: add pinned extents to
2012 Mar 20
13
[PATCH 0 of 3 v2] PV-GRUB: add support for ext4 and btrfs
Hi,
The following patches add support for ext4 and btrfs to
PV-GRUB. These patches are taken nearly verbatim from those provided
by Fedora and Gentoo.
We''ve been using these patches for the PV-GRUB images available in EC2
for some time now with no problems.
Changes from v1:
- Makefile has been changed to check the exit code from patch
- The btrfs patch has been rebased to apply
2009 Aug 05
3
RAID[56] with arbitrary numbers of "parity" stripes.
...em->len - offset,
@@ -2818,8 +2799,7 @@ again:
current->pid % map->sub_stripes);
}
- } else if (map->type & (BTRFS_BLOCK_GROUP_RAID5 |
- BTRFS_BLOCK_GROUP_RAID6)) {
+ } else if (map->type & BTRFS_BLOCK_GROUP_RAID56) {
u64 tmp;
stripe_index = do_div(stripe_nr, nr_data_stripes(map));
@@ -2841,7 +2821,7 @@ again:
em->start + (tmp + i) * map->stripe_len;
raid_map[(i+rot) % map->num_stripes] = RAID5_P_STRIPE;
- if (map->type & BTRFS_BLOCK_GROUP_RAID6)
+ if ((map->type >> 56) >= 2)
raid_map[(i+rot+1) % map->...