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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 21:35:28 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-07-31 21:35:28 (GMT) |
commit | cc8362b1f6d724e46f515121d442779924b19fec (patch) | |
tree | 86fb5c3767e538ec9ded57dd7b3ce5d69dcde691 /net/ceph/crush/mapper.c | |
parent | 2e3ee613480563a6d5c01b57d342e65cc58c06df (diff) | |
parent | 1fe5e9932156f6122c3b1ff6ba7541c27c86718c (diff) | |
download | linux-cc8362b1f6d724e46f515121d442779924b19fec.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph changes from Sage Weil:
"Lots of stuff this time around:
- lots of cleanup and refactoring in the libceph messenger code, and
many hard to hit races and bugs closed as a result.
- lots of cleanup and refactoring in the rbd code from Alex Elder,
mostly in preparation for the layering functionality that will be
coming in 3.7.
- some misc rbd cleanups from Josh Durgin that are finally going
upstream
- support for CRUSH tunables (used by newer clusters to improve the
data placement)
- some cleanup in our use of d_parent that Al brought up a while back
- a random collection of fixes across the tree
There is another patch coming that fixes up our ->atomic_open()
behavior, but I'm going to hammer on it a bit more before sending it."
Fix up conflicts due to commits that were already committed earlier in
drivers/block/rbd.c, net/ceph/{messenger.c, osd_client.c}
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (132 commits)
rbd: create rbd_refresh_helper()
rbd: return obj version in __rbd_refresh_header()
rbd: fixes in rbd_header_from_disk()
rbd: always pass ops array to rbd_req_sync_op()
rbd: pass null version pointer in add_snap()
rbd: make rbd_create_rw_ops() return a pointer
rbd: have __rbd_add_snap_dev() return a pointer
libceph: recheck con state after allocating incoming message
libceph: change ceph_con_in_msg_alloc convention to be less weird
libceph: avoid dropping con mutex before fault
libceph: verify state after retaking con lock after dispatch
libceph: revoke mon_client messages on session restart
libceph: fix handling of immediate socket connect failure
ceph: update MAINTAINERS file
libceph: be less chatty about stray replies
libceph: clear all flags on con_close
libceph: clean up con flags
libceph: replace connection state bits with states
libceph: drop unnecessary CLOSED check in socket state change callback
libceph: close socket directly from ceph_con_close()
...
Diffstat (limited to 'net/ceph/crush/mapper.c')
-rw-r--r-- | net/ceph/crush/mapper.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/net/ceph/crush/mapper.c b/net/ceph/crush/mapper.c index d7edc24..35fce75 100644 --- a/net/ceph/crush/mapper.c +++ b/net/ceph/crush/mapper.c @@ -306,7 +306,6 @@ static int crush_choose(const struct crush_map *map, int item = 0; int itemtype; int collide, reject; - const unsigned int orig_tries = 5; /* attempts before we fall back to search */ dprintk("CHOOSE%s bucket %d x %d outpos %d numrep %d\n", recurse_to_leaf ? "_LEAF" : "", bucket->id, x, outpos, numrep); @@ -351,8 +350,9 @@ static int crush_choose(const struct crush_map *map, reject = 1; goto reject; } - if (flocal >= (in->size>>1) && - flocal > orig_tries) + if (map->choose_local_fallback_tries > 0 && + flocal >= (in->size>>1) && + flocal > map->choose_local_fallback_tries) item = bucket_perm_choose(in, x, r); else item = crush_bucket_choose(in, x, r); @@ -422,13 +422,14 @@ reject: ftotal++; flocal++; - if (collide && flocal < 3) + if (collide && flocal <= map->choose_local_tries) /* retry locally a few times */ retry_bucket = 1; - else if (flocal <= in->size + orig_tries) + else if (map->choose_local_fallback_tries > 0 && + flocal <= in->size + map->choose_local_fallback_tries) /* exhaustive bucket search */ retry_bucket = 1; - else if (ftotal < 20) + else if (ftotal <= map->choose_total_tries) /* then retry descent */ retry_descent = 1; else |