samsung_sm8750/android_kernel_samsung_sm8750
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Browse Source 
Pull device mapper updates from Mike Snitzer:
 "Smaller set of DM changes for this merge.  I've based these changes on
  Jens' for-4.4/reservations branch because the associated DM changes
  required it.

   - Revert a dm-multipath change that caused a regression for
     unprivledged users (e.g. kvm guests) that issued ioctls when a
     multipath device had no available paths.

   - Include Christoph's refactoring of DM's ioctl handling and add
     support for passing through persistent reservations with DM
     multipath.

   - All other changes are very simple cleanups"

* tag 'dm-4.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm switch: simplify conditional in alloc_region_table()
  dm delay: document that offsets are specified in sectors
  dm delay: capitalize the start of an delay_ctr() error message
  dm delay: Use DM_MAPIO macros instead of open-coded equivalents
  dm linear: remove redundant target name from error messages
  dm persistent data: eliminate unnecessary return values
  dm: eliminate unused "bioset" process for each bio-based DM device
  dm: convert ffs to __ffs
  dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()
  dm: add support for passing through persistent reservations
  dm: refactor ioctl handling
  Revert "dm mpath: fix stalls when handling invalid ioctls"
  dm: initialize non-blk-mq queue data before queue is used
This commit is contained in:
Linus Torvalds
2015-11-04 21:19:53 -08:00
parent ac322de6bf aad9ae4550
commit e0700ce709
35 changed files with 333 additions and 215 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/md/persistent-data/dm-btree-remove.c
View File

@@ -165,9 +165,9 @@ static int init_child(struct dm_btree_info *info, struct dm_btree_value_type *vt
return 0;
}
static int exit_child(struct dm_btree_info *info, struct child *c)
static void exit_child(struct dm_btree_info *info, struct child *c)
{
return dm_tm_unlock(info->tm, c->block);
dm_tm_unlock(info->tm, c->block);
}
static void shift(struct btree_node *left, struct btree_node *right, int count)
@@ -249,13 +249,10 @@ static int rebalance2(struct shadow_spine *s, struct dm_btree_info *info,
__rebalance2(info, parent, &left, &right);
r = exit_child(info, &left);
if (r) {
exit_child(info, &right);
return r;
}
exit_child(info, &left);
exit_child(info, &right);
return exit_child(info, &right);
return 0;
}
/*
@@ -394,22 +391,9 @@ static int rebalance3(struct shadow_spine *s, struct dm_btree_info *info,
__rebalance3(info, parent, &left, &center, &right);
r = exit_child(info, &left);
if (r) {
exit_child(info, &center);
exit_child(info, &right);
return r;
}
r = exit_child(info, &center);
if (r) {
exit_child(info, &right);
return r;
}
r = exit_child(info, &right);
if (r)
return r;
exit_child(info, &left);
exit_child(info, &center);
exit_child(info, &right);
return 0;
}
@@ -433,9 +417,7 @@ static int rebalance_children(struct shadow_spine *s,
memcpy(n, dm_block_data(child),
dm_bm_block_size(dm_tm_get_bm(info->tm)));
r = dm_tm_unlock(info->tm, child);
if (r)
return r;
dm_tm_unlock(info->tm, child);
dm_tm_dec(info->tm, dm_block_location(child));
return 0;