SIMD optimized erasure code computation needs aligned memory. Buffers
aligned to a page boundary are not needed though. The buffers used
for the erasure code computation are typical smaller than a page.
The typical alignment requirements SIMD operations are 16 bytes for
SSE2 and NEON and 32 bytes for AVX/AVX2.
Add new prototypes with an align argument, similar to the one enforcing
page alignment. The implementation is exactly the same, except for the
align parameter. The page alignment method are then implemented as calls
to the more generic methods.
The align parameter is an unsigned (same type as CEPH_PAGE_SIZE). The
CEPH_PAGE_MASK value ( ~(CEPH_PAGE_SIZE - 1) ) was only used as
~CEPH_PAGE_MASK, i.e. equivalent of (CEPH_PAGE_SIZE - 1) once the double
~~ is reduced. These occurrence are replaced with (align - 1). The type
of CEPH_PAGE_MASK is an unsigned long which probably because it was
~(CEPH_PAGE_SIZE). When using (align - 1) as a mask for both
CEPH_PAGE_SIZE and SIMD alignment there is no need to use an unsigned
long because there is no risk of overflowing the unsigned value.
The CYGWIN specific code is also modified but not tested.
Unit tests are added for the new methods.
Signed-off-by: Janne Grunau <j@jannau.net>
Signed-off-by: Loic Dachary <loic-201408@dachary.org>
The regression was introduced in commit
4fc9fffc49. The problem is that the cache
thinks it's full (when it's not), so it defers the read. This change
frees up cache space if necessary and only defers the read if enough
space cannot be freed.
Fixes: 9513
Signed-off-by: Adam Crume <adamcrume@gmail.com>
(cherry picked from commit 82175ec94a)
Suites run with CEPH_TEST_CLI_DUP_COMMAND=1, which will send a duplicate
command for every command issued with the 'ceph' tool. Behavior is to
get a reply from the command and then send a duplicate, looking for the
same outcome (guaranteeing idempotency of the operations). However, it
so happens that if you remove the entity's own key from the keyring and
you happen to be unlucky enough so that the client's connection gets
failed (we also run tests with connection failure injections), the
'ceph' tool won't be able to reconnect to the cluster to send the
duplicate command (as it's entity no longer exists in the cluster's
keyring).
We rewrite the test instead of resorting to ugly hacks to work around
this behavior, simply having a new 'role-definer' added by the existing
'role-definer' (which we weren't testing anyway, so bonus points for
that) and then have one removing the other (to test the procedure) and
finally using 'client.admin' to remove the last 'role-definer'.
Fixes: #9820
Signed-off-by: Joao Eduardo Luis <joao@redhat.com>
interval_set::insert takes arguments start and len, not end.
Signed-off-by: Henry C Chang <henry.cy.chang@gmail.com>
(cherry picked from commit c95bb59434)
The || instead of && had it always installed. That was fixed in EPEL
already.
http://tracker.ceph.com/issues/9747Fixes: #9747
Signed-off-by: Loic Dachary <loic-201408@dachary.org>
(cherry picked from commit 5ff4a850a0)
For, linger ops, _session_linger_op_remove invalidates our iterator; add
it to the list first. Same goes for the others.
Signed-off-by: Sage Weil <sage@redhat.com>
The MClientCaps* is allowed to be NULL, so we can't deref it unless
the dirty param is non-zero. So don't do the ahead-of-time lookup;
just call it explicitly in the if block.
Signed-off-by: Greg Farnum <greg@inktank.com>
Add CEPH_FEATURE_OSD_SET_ALLOC_HINT feature bit
Collect the intersection of all peer feature bits during peering
When handling CEPH_OSD_OP_SETALLOCHINT check that all OSDs support it
by checking for CEPH_FEATURE_OSD_SET_ALLOC_HINT feature bit.
Fixes: #9419
Backport: firefly
Signed-off-by: David Zafman <dzafman@redhat.com>
The l string is always empty because std::transform needs a
pre-allocated string. Replace with the in-place version. Add unit tests.
http://tracker.ceph.com/issues/9677Fixes: #9677
Signed-off-by: Loic Dachary <loic-201408@dachary.org>
(cherry picked from commit 3535b7aba3)
