| Commit message (Collapse) | Author | Age | Files | Lines |
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Commit d30291b985d1 ("libceph: variable-sized ceph_object_id") changed
dout()s in what is now encode_request() and ceph_object_locator_to_pg()
to use %pE, mostly to document that, although all rbd and cephfs object
names are NULL-terminated strings, ceph_object_id will handle any RADOS
object name, including the one containing NULs, just fine.
However, it turns out that vbin_printf() can't handle anything but ints
and %s - all %p suffixes are ignored. The buffer %p** points to isn't
recorded, resulting in trash in the messages if the buffer had been
reused by the time bstr_printf() got to it.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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handle_reply() may be called twice on the same request: on ack and then
on commit. This occurs on btrfs-formatted OSDs or if cephfs sync write
path is triggered - CEPH_OSD_FLAG_ACK | CEPH_OSD_FLAG_ONDISK.
handle_reply() handles this with the help of done_request().
Fixes: 5aea3dcd5021 ("libceph: a major OSD client update")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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For the benefit of every single caller, take osdc instead of map.
Also, now that osdc->osdmap can't ever be NULL, drop the check.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Pull networking fixes from David Miller:
1) Fix negative error code usage in ATM layer, from Stefan Hajnoczi.
2) If CONFIG_SYSCTL is disabled, the default TTL is not initialized
properly. From Ezequiel Garcia.
3) Missing spinlock init in mvneta driver, from Gregory CLEMENT.
4) Missing unlocks in hwmb error paths, also from Gregory CLEMENT.
5) Fix deadlock on team->lock when propagating features, from Ivan
Vecera.
6) Work around buffer offset hw bug in alx chips, from Feng Tang.
7) Fix double listing of SCTP entries in sctp_diag dumps, from Xin
Long.
8) Various statistics bug fixes in mlx4 from Eric Dumazet.
9) Fix some randconfig build errors wrt fou ipv6 from Arnd Bergmann.
10) All of l2tp was namespace aware, but the ipv6 support code was not
doing so. From Shmulik Ladkani.
11) Handle on-stack hrtimers properly in pktgen, from Guenter Roeck.
12) Propagate MAC changes properly through VLAN devices, from Mike
Manning.
13) Fix memory leak in bnx2x_init_one(), from Vitaly Kuznetsov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
sfc: Track RPS flow IDs per channel instead of per function
usbnet: smsc95xx: fix link detection for disabled autonegotiation
virtio_net: fix virtnet_open and virtnet_probe competing for try_fill_recv
bnx2x: avoid leaking memory on bnx2x_init_one() failures
fou: fix IPv6 Kconfig options
openvswitch: update checksum in {push,pop}_mpls
sctp: sctp_diag should dump sctp socket type
net: fec: update dirty_tx even if no skb
vlan: Propagate MAC address to VLANs
atm: iphase: off by one in rx_pkt()
atm: firestream: add more reserved strings
vxlan: Accept user specified MTU value when create new vxlan link
net: pktgen: Call destroy_hrtimer_on_stack()
timer: Export destroy_hrtimer_on_stack()
net: l2tp: Make l2tp_ip6 namespace aware
Documentation: ip-sysctl.txt: clarify secure_redirects
sfc: use flow dissector helpers for aRFS
ieee802154: fix logic error in ieee802154_llsec_parse_dev_addr
net: nps_enet: Disable interrupts before napi reschedule
net/lapb: tuse %*ph to dump buffers
...
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The Kconfig options I added to work around broken compilation ended
up screwing up things more, as I used the wrong symbol to control
compilation of the file, resulting in IPv6 fou support to never be built
into the kernel.
Changing CONFIG_NET_FOU_IPV6_TUNNELS to CONFIG_IPV6_FOU fixes that
problem, I had renamed the symbol in one location but not the other,
and as the file is never being used by other kernel code, this did not
lead to a build failure that I would have caught.
After that fix, another issue with the same patch becomes obvious, as we
'select INET6_TUNNEL', which is related to IPV6_TUNNEL, but not the same,
and this can still cause the original build failure when IPV6_TUNNEL is
not built-in but IPV6_FOU is. The fix is equally trivial, we just need
to select the right symbol.
I have successfully build 350 randconfig kernels with this patch
and verified that the driver is now being built.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Valentin Rothberg <valentinrothberg@gmail.com>
Fixes: fabb13db448e ("fou: add Kconfig options for IPv6 support")
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the case of CHECKSUM_COMPLETE the skb checksum should be updated in
{push,pop}_mpls() as they the type in the ethernet header.
As suggested by Pravin Shelar.
Cc: Pravin Shelar <pshelar@nicira.com>
Fixes: 25cd9ba0abc0 ("openvswitch: Add basic MPLS support to kernel")
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now we cannot distinguish that one sk is a udp or sctp style when
we use ss to dump sctp_info. it's necessary to dump it as well.
For sctp_diag, ss support is not officially available, thus there
are no official users of this yet, so we can add this field in the
middle of sctp_info without breaking user API.
v1->v2:
- move 'sctpi_s_type' field to the end of struct sctp_info, so
that it won't cause incompatibility with applications already
built.
- add __reserved3 in sctp_info to make sure sctp_info is 8-byte
alignment.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The MAC address of the physical interface is only copied to the VLAN
when it is first created, resulting in an inconsistency after MAC
address changes of only newly created VLANs having an up-to-date MAC.
The VLANs should continue inheriting the MAC address of the physical
interface until the VLAN MAC address is explicitly set to any value.
This allows IPv6 EUI64 addresses for the VLAN to reflect any changes
to the MAC of the physical interface and thus for DAD to behave as
expected.
Signed-off-by: Mike Manning <mmanning@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If CONFIG_DEBUG_OBJECTS_TIMERS=y, hrtimer_init_on_stack() requires
a matching call to destroy_hrtimer_on_stack() to clean up timer
debug objects.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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l2tp_ip6 tunnel and session lookups were still using init_net, although
the l2tp core infrastructure already supports lookups keyed by 'net'.
As a result, l2tp_ip6_recv discarded packets for tunnels/sessions
created in namespaces other than the init_net.
Fix, by using dev_net(skb->dev) or sock_net(sk) where appropriate.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix a logic error to avoid potential null pointer dereference.
Signed-off-by: Baozeng Ding <sploving1@gmail.com>
Reviewed-by: Stefan Schmidt<stefan@osg.samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use %*ph specifier to dump small buffers in hex format instead doing this
byte-by-byte.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A previous patch added the fou6.ko module, but that failed to link
in a couple of configurations:
net/built-in.o: In function `ip6_tnl_encap_add_fou_ops':
net/ipv6/fou6.c:88: undefined reference to `ip6_tnl_encap_add_ops'
net/ipv6/fou6.c:94: undefined reference to `ip6_tnl_encap_add_ops'
net/ipv6/fou6.c:97: undefined reference to `ip6_tnl_encap_del_ops'
net/built-in.o: In function `ip6_tnl_encap_del_fou_ops':
net/ipv6/fou6.c:106: undefined reference to `ip6_tnl_encap_del_ops'
net/ipv6/fou6.c:107: undefined reference to `ip6_tnl_encap_del_ops'
If CONFIG_IPV6=m, ip6_tnl_encap_add_ops/ip6_tnl_encap_del_ops
are in a module, but fou6.c can still be built-in, and that
obviously fails to link.
Also, if CONFIG_IPV6=y, but CONFIG_IPV6_TUNNEL=m or
CONFIG_IPV6_TUNNEL=n, the same problem happens for a different
reason.
This adds two new silent Kconfig symbols to work around both
problems:
- CONFIG_IPV6_FOU is now always set to 'm' if either CONFIG_NET_FOU=m
or CONFIG_IPV6=m
- CONFIG_IPV6_FOU_TUNNEL is set implicitly when IPV6_FOU is enabled
and NET_FOU_IP_TUNNELS is also turned out, and it will ensure
that CONFIG_IPV6_TUNNEL is also available.
The options could be made user-visible as well, to give additional
room for configuration, but it seems easier not to bother users
with more choice here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: aa3463d65e7b ("fou: Add encap ops for IPv6 tunnels")
Signed-off-by: David S. Miller <davem@davemloft.net>
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We have this situation: that EP hash table, contains only the EPs
that are listening, while the transports one, has the opposite.
We have to traverse both to dump all.
But when we traverse the transports one we will also get EPs that are
in the EP hash if they are listening. In this case, the EP is dumped
twice.
We will fix it by checking if the endpoint that is in the endpoint
hash table contains any ep->asoc in there, as it means we will also
find it via transport hash, and thus we can/should skip it, depending
on the filters used, like 'ss -l'.
Still, we should NOT skip it if the user is listing only listening
endpoints, because then we are not traversing the transport hash.
so we have to check idiag_states there also.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When hwbm_pool_add exited in error the spinlock was not released. This
patch fixes this issue.
Fixes: 8cb2d8bf57e6 ("net: add a hardware buffer management helper API")
Reported-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before calling the nla_parse_nested function, make sure the pointer to the
attribute is not null. This patch fixes several potential null pointer
dereference vulnerabilities in the tipc netlink functions.
Signed-off-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Policer was not dumping or updating timestamps
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I found a serious performance bug in packet schedulers using hrtimers.
sch_htb and sch_fq are definitely impacted by this problem.
We constantly rearm high resolution timers if some packets are throttled
in one (or more) class, and other packets are flying through qdisc on
another (non throttled) class.
hrtimer_start() does not have the mod_timer() trick of doing nothing if
expires value does not change :
if (timer_pending(timer) &&
timer->expires == expires)
return 1;
This issue is particularly visible when multiple cpus can queue/dequeue
packets on the same qdisc, as hrtimer code has to lock a remote base.
I used following fix :
1) Change htb to use qdisc_watchdog_schedule_ns() instead of open-coding
it.
2) Cache watchdog prior expiration. hrtimer might provide this, but I
prefer to not rely on some hrtimer internal.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In gre6 xmit path, we are sending a GRE packet, so set fl6 proto
to IPPROTO_GRE properly.
Signed-off-by: Haishuang Yan <yanhaishuang@cmss.chinamobile.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When creat an ip6gretap interface with an unreachable route,
the MTU is about 14 bytes larger than what was needed.
If the remote address is reachable:
ping6 2001:0:130::1 -c 2
PING 2001:0:130::1(2001:0:130::1) 56 data bytes
64 bytes from 2001:0:130::1: icmp_seq=1 ttl=64 time=1.46 ms
64 bytes from 2001:0:130::1: icmp_seq=2 ttl=64 time=81.1 ms
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit fa50d974d104 ("ipv4: Namespaceify ip_default_ttl sysctl knob")
moves the default TTL assignment, and as side-effect IPv4 TTL now
has a default value only if sysctl support is enabled (CONFIG_SYSCTL=y).
The sysctl_ip_default_ttl is fundamental for IP to work properly,
as it provides the TTL to be used as default. The defautl TTL may be
used in ip_selected_ttl, through the following flow:
ip_select_ttl
ip4_dst_hoplimit
net->ipv4.sysctl_ip_default_ttl
This commit fixes the issue by assigning net->ipv4.sysctl_ip_default_ttl
in net_init_net, called during ipv4's initialization.
Without this commit, a kernel built without sysctl support will send
all IP packets with zero TTL (unless a TTL is explicitly set, e.g.
with setsockopt).
Given a similar issue might appear on the other knobs that were
namespaceify, this commit also moves them.
Fixes: fa50d974d104 ("ipv4: Namespaceify ip_default_ttl sysctl knob")
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sk_err and sk_err_soft fields are positive errno values and
userspace applications rely on this when using getsockopt(SO_ERROR).
ATM code places an -errno into sk_err_soft in sigd_send() and returns it
from svc_addparty()/svc_dropparty().
Although I am not familiar with ATM code I came to this conclusion
because:
1. sigd_send() msg->type cases as_okay and as_error both have:
sk->sk_err = -msg->reply;
while the as_addparty and as_dropparty cases have:
sk->sk_err_soft = msg->reply;
This is the source of the inconsistency.
2. svc_addparty() returns an -errno and assumes sk_err_soft is also an
-errno:
if (flags & O_NONBLOCK) {
error = -EINPROGRESS;
goto out;
}
...
error = xchg(&sk->sk_err_soft, 0);
out:
release_sock(sk);
return error;
This shows that sk_err_soft is indeed being treated as an -errno.
This patch ensures that sk_err_soft is always a positive errno.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Most users of IS_ERR_VALUE() in the kernel are wrong, as they
pass an 'int' into a function that takes an 'unsigned long'
argument. This happens to work because the type is sign-extended
on 64-bit architectures before it gets converted into an
unsigned type.
However, anything that passes an 'unsigned short' or 'unsigned int'
argument into IS_ERR_VALUE() is guaranteed to be broken, as are
8-bit integers and types that are wider than 'unsigned long'.
Andrzej Hajda has already fixed a lot of the worst abusers that
were causing actual bugs, but it would be nice to prevent any
users that are not passing 'unsigned long' arguments.
This patch changes all users of IS_ERR_VALUE() that I could find
on 32-bit ARM randconfig builds and x86 allmodconfig. For the
moment, this doesn't change the definition of IS_ERR_VALUE()
because there are probably still architecture specific users
elsewhere.
Almost all the warnings I got are for files that are better off
using 'if (err)' or 'if (err < 0)'.
The only legitimate user I could find that we get a warning for
is the (32-bit only) freescale fman driver, so I did not remove
the IS_ERR_VALUE() there but changed the type to 'unsigned long'.
For 9pfs, I just worked around one user whose calling conventions
are so obscure that I did not dare change the behavior.
I was using this definition for testing:
#define IS_ERR_VALUE(x) ((unsigned long*)NULL == (typeof (x)*)NULL && \
unlikely((unsigned long long)(x) >= (unsigned long long)(typeof(x))-MAX_ERRNO))
which ends up making all 16-bit or wider types work correctly with
the most plausible interpretation of what IS_ERR_VALUE() was supposed
to return according to its users, but also causes a compile-time
warning for any users that do not pass an 'unsigned long' argument.
I suggested this approach earlier this year, but back then we ended
up deciding to just fix the users that are obviously broken. After
the initial warning that caused me to get involved in the discussion
(fs/gfs2/dir.c) showed up again in the mainline kernel, Linus
asked me to send the whole thing again.
[ Updated the 9p parts as per Al Viro - Linus ]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: https://lkml.org/lkml/2016/1/7/363
Link: https://lkml.org/lkml/2016/5/27/486
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> # For nvmem part
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
"This changeset has a few main parts:
- Ilya has finished a huge refactoring effort to sync up the
client-side logic in libceph with the user-space client code, which
has evolved significantly over the last couple years, with lots of
additional behaviors (e.g., how requests are handled when cluster
is full and transitions from full to non-full).
This structure of the code is more closely aligned with userspace
now such that it will be much easier to maintain going forward when
behavior changes take place. There are some locking improvements
bundled in as well.
- Zheng adds multi-filesystem support (multiple namespaces within the
same Ceph cluster)
- Zheng has changed the readdir offsets and directory enumeration so
that dentry offsets are hash-based and therefore stable across
directory fragmentation events on the MDS.
- Zheng has a smorgasbord of bug fixes across fs/ceph"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (71 commits)
ceph: fix wake_up_session_cb()
ceph: don't use truncate_pagecache() to invalidate read cache
ceph: SetPageError() for writeback pages if writepages fails
ceph: handle interrupted ceph_writepage()
ceph: make ceph_update_writeable_page() uninterruptible
libceph: make ceph_osdc_wait_request() uninterruptible
ceph: handle -EAGAIN returned by ceph_update_writeable_page()
ceph: make fault/page_mkwrite return VM_FAULT_OOM for -ENOMEM
ceph: block non-fatal signals for fault/page_mkwrite
ceph: make logical calculation functions return bool
ceph: tolerate bad i_size for symlink inode
ceph: improve fragtree change detection
ceph: keep leaf frag when updating fragtree
ceph: fix dir_auth check in ceph_fill_dirfrag()
ceph: don't assume frag tree splits in mds reply are sorted
ceph: fix inode reference leak
ceph: using hash value to compose dentry offset
ceph: don't forbid marking directory complete after forward seek
ceph: record 'offset' for each entry of readdir result
ceph: define 'end/complete' in readdir reply as bit flags
...
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Ceph_osdc_wait_request() is used when cephfs issues sync IO. In most
cases, the sync IO should be uninterruptible. The fix is use killale
wait function in ceph_osdc_wait_request().
Signed-off-by: Yan, Zheng <zyan@redhat.com>
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This patch makes serverl logical caculation functions return bool to
improve readability due to these particular functions only using 0/1
as their return value.
No functional change.
Signed-off-by: Zhang Zhuoyu <zhangzhuoyu@cmss.chinamobile.com>
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Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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... with a wrapper around maybe_request_map() - no need for two
osdmap-specific functions.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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There is now about a dozen CEPH_OSDMAP_* flags. This is a debugging
interface, so just dump in hex instead of spelling each flag out.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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This adds the "map check" infrastructure for sending osdmap version
checks on CALC_TARGET_POOL_DNE and completing in-flight requests with
-ENOENT if the target pool doesn't exist or has just been deleted.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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For map check, we are going to need to send CEPH_MSG_MON_GET_VERSION
messages asynchronously and get a callback on completion. Refactor MON
client to allow firing off generic requests asynchronously and add an
async variant of ceph_monc_get_version(). ceph_monc_do_statfs() is
switched over and remains sync.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Implement ceph_osdc_watch_check() to be able to check on status of
watch. Note that the time it takes for a watch/notify event to get
delivered through the notify_wq is taken into account.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Implement ceph_osdc_notify() for sending notifies.
Due to the fact that the current messenger can't do read-in into
pagelists (it can only do write-out from them), I had to go with a page
vector for a NOTIFY_COMPLETE payload, for now.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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This adds support and switches rbd to a new, more reliable version of
watch/notify protocol. As with the OSD client update, this is mostly
about getting the right structures linked into the right places so that
reconnects are properly sent when needed. watch/notify v2 also
requires sending regular pings to the OSDs - send_linger_ping().
A major change from the old watch/notify implementation is the
introduction of ceph_osd_linger_request - linger requests no longer
piggy back on ceph_osd_request. ceph_osd_event has been merged into
ceph_osd_linger_request.
All the details are now hidden within libceph, the interface consists
of a simple pair of watch/unwatch functions and ceph_osdc_notify_ack().
ceph_osdc_watch() does return ceph_osd_linger_request, but only to keep
the lifetime management simple.
ceph_osdc_notify_ack() accepts an optional data payload, which is
relayed back to the notifier.
Portions of this patch are loosely based on work by Douglas Fuller
<dfuller@redhat.com> and Mike Christie <michaelc@cs.wisc.edu>.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The unwatch timeout is currently implemented in rbd. With
watch/unwatch code moving into libceph, we are going to need
a ceph_osdc_wait_request() variant with a timeout.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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These are going to be used by request_reinit() code.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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This is a major sync up, up to ~Jewel. The highlights are:
- per-session request trees (vs a global per-client tree)
- per-session locking (vs a global per-client rwlock)
- homeless OSD session
- no ad-hoc global per-client lists
- support for pool quotas
- foundation for watch/notify v2 support
- foundation for map check (pool deletion detection) support
The switchover is incomplete: lingering requests can be setup and
teared down but aren't ever reestablished. This functionality is
restored with the introduction of the new lingering infrastructure
(ceph_osd_linger_request, linger_work, etc) in a later commit.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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OSD client is getting moved from the big per-client lock to a set of
per-session locks. The big rwlock would only be held for read most of
the time, so a global osdc->osd_lru needs additional protection.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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create_osd() is called way too deep in the stack to be able to error
out in a sane way; a failing create_osd() just messes everything up.
The current req_notarget list solution is broken - the list is never
traversed as it's not entirely clear when to do it, I guess.
If we were to start traversing it at regular intervals and retrying
each request, we wouldn't be far off from what __GFP_NOFAIL is doing,
so allocate OSD sessions with __GFP_NOFAIL, at least until we come up
with a better fix.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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These are going to be used by homeless OSD sessions code.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Separate osdmap handling from decoding and iterating over a bag of maps
in a fresh MOSDMap message. This sets up the scene for the updated OSD
client.
Of particular importance here is the addition of pi->was_full, which
can be used to answer "did this pool go full -> not-full in this map?".
This is the key bit for supporting pool quotas.
We won't be able to downgrade map_sem for much longer, so drop
downgrade_write().
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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This leads to a simpler osdmap handling code, particularly when dealing
with pi->was_full, which is introduced in a later commit.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Both homeless OSD sessions and watch/notify v2, introduced in later
commits, require periodic ticks which don't depend on ->num_requests.
Schedule the initial tick from ceph_osdc_init() and reschedule from
handle_timeout() unconditionally.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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ceph_osdc_stop() isn't called if ceph_osdc_init() fails, so we end up
with handle_osds_timeout() running on invalid memory if any one of the
allocations fails. Call schedule_delayed_work() after everything is
setup, just before returning.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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If you specify ACK | ONDISK and set ->r_unsafe_callback, both
->r_callback and ->r_unsafe_callback(true) are called on ack. This is
very confusing. Redo this so that only one of them is called:
->r_unsafe_callback(true), on ack
->r_unsafe_callback(false), on commit
or
->r_callback, on ack|commit
Decode everything in decode_MOSDOpReply() to reduce clutter.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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finish_read(), its only user, uses it to get to hdr.data_len, which is
what ->r_result is set to on success. This gains us the ability to
safely call callbacks from contexts other than reply, e.g. map check.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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The crux of this is getting rid of ceph_osdc_build_request(), so that
MOSDOp can be encoded not before but after calc_target() calculates the
actual target. Encoding now happens within ceph_osdc_start_request().
Also nuked is the accompanying bunch of pointers into the encoded
buffer that was used to update fields on each send - instead, the
entire front is re-encoded. If we want to support target->name_len !=
base->name_len in the future, there is no other way, because oid is
surrounded by other fields in the encoded buffer.
Encoding OSD ops and adding data items to the request message were
mixed together in osd_req_encode_op(). While we want to re-encode OSD
ops, we don't want to add duplicate data items to the message when
resending, so all call to ceph_osdc_msg_data_add() are factored out
into a new setup_request_data().
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Replace __calc_request_pg() and most of __map_request() with
calc_target() and start using req->r_t.
ceph_osdc_build_request() however still encodes base_oid, because it's
called before calc_target() is and target_oid is empty at that point in
time; a printf in osdc_show() also shows base_oid. This is fixed in
"libceph: switch to calc_target(), part 2".
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Introduce ceph_osd_request_target, containing all mapping-related
fields of ceph_osd_request and calc_target() for calculating mappings
and populating it.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Add and decode pi->min_size and pi->last_force_request_resend. These
are going to be used by calc_target().
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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