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The patch migrates the original tests at samples/bpf/tcbpf2_kern.c
and samples/bpf/test_tunnel_bpf.sh to selftests. There are a couple
changes from the original:
1) add ipv6 vxlan, ipv6 geneve, ipv6 ipip tests
2) simplify the original ipip tests (remove iperf tests)
3) improve documentation
4) use bpf_ntoh* and bpf_hton* api
In summary, 'test_tunnel_kern.o' contains the following bpf program:
GRE: gre_set_tunnel, gre_get_tunnel
IP6GRE: ip6gretap_set_tunnel, ip6gretap_get_tunnel
ERSPAN: erspan_set_tunnel, erspan_get_tunnel
IP6ERSPAN: ip4ip6erspan_set_tunnel, ip4ip6erspan_get_tunnel
VXLAN: vxlan_set_tunnel, vxlan_get_tunnel
IP6VXLAN: ip6vxlan_set_tunnel, ip6vxlan_get_tunnel
GENEVE: geneve_set_tunnel, geneve_get_tunnel
IP6GENEVE: ip6geneve_set_tunnel, ip6geneve_get_tunnel
IPIP: ipip_set_tunnel, ipip_get_tunnel
IP6IP: ipip6_set_tunnel, ipip6_get_tunnel,
ip6ip6_set_tunnel, ip6ip6_get_tunnel
XFRM: xfrm_get_state
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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When bpf_adjust_tail was introduced for generic xdp, it changed skb's tail
pointer, so it was pointing to the new "end of the packet". However skb's
len field wasn't properly modified, so on the wire ethernet frame had
original (or even bigger, if adjust_head was used) size. This diff is
fixing this.
Fixes: 198d83bb3 (" bpf: make generic xdp compatible w/ bpf_xdp_adjust_tail")
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Display the license "gpl" string in bpftool prog command, like:
# bpftool prog list
5: tracepoint name func tag 57cd311f2e27366b gpl
loaded_at Apr 26/09:37 uid 0
xlated 16B not jited memlock 4096B
# bpftool --json --pretty prog show
[{
"id": 5,
"type": "tracepoint",
"name": "func",
"tag": "57cd311f2e27366b",
"gpl_compatible": true,
"loaded_at": "Apr 26/09:37",
"uid": 0,
"bytes_xlated": 16,
"jited": false,
"bytes_memlock": 4096
}
]
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Syncing the bpf.h uapi header with tools.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Adding gpl_compatible flag to struct bpf_prog_info
so it can be dumped via bpf_prog_get_info_by_fd and
displayed via bpftool progs dump.
Alexei noticed 4-byte hole in struct bpf_prog_info,
so we put the u32 flags field in there, and we can
keep adding bit fields in there without breaking
user space.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Jakub Kicinski says:
====================
This set adds an optimization run to the NFP jit to turn ADD and SUB
instructions with negative immediate into the opposite operation with
a positive immediate. NFP can fit small immediates into the instructions
but it can't ever fit negative immediates. Addition of small negative
immediates is quite common in BPF programs for stack address calculations,
therefore this optimization gives us non-negligible savings in instruction
count (up to 4%).
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Comparison instruction requires a subtraction. If the constant
is negative we are more likely to fit it into a NFP instruction
directly if we change the sign and use addition.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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There are quite a few compare instructions now, use a table
to translate BPF instruction code to NFP instruction parameters
instead of parameterizing helpers. This saves LOC and makes
future extensions easier.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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NFP instruction set can fit small immediates into the instruction.
Negative integers, however, will never fit because they will have
highest bit set. If we swap the ALU op between ADD and SUB and
negate the constant we have a better chance of fitting small negative
integers into the instruction itself and saving one or two cycles.
immed[gprB_21, 0xfffffffc]
alu[gprA_4, gprA_4, +, gprB_21], gpr_wrboth
immed[gprB_21, 0xffffffff]
alu[gprA_5, gprA_5, +carry, gprB_21], gpr_wrboth
now becomes:
alu[gprA_4, gprA_4, -, 4], gpr_wrboth
alu[gprA_5, gprA_5, -carry, 0], gpr_wrboth
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Whitespace cleanup - remove double space.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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When test_sockmap was running outside of selftests and was not being
run by build bots it was reasonable to spend significant amount of
time running various tests. The number of tests is high because many
different I/O iterators are run.
However, now that test_sockmap is part of selftests rather than
iterate through all I/O sides only test a minimal set of min/max
values along with a few "normal" I/O ops. Also remove the long
running tests. They can be run from other test frameworks on a regular
cadence.
This significanly reduces runtime of test_sockmap.
Before:
$ time sudo ./test_sockmap > /dev/null
real 4m47.521s
user 0m0.370s
sys 0m3.131s
After:
$ time sudo ./test_sockmap > /dev/null
real 0m0.514s
user 0m0.104s
sys 0m0.430s
The CLI is still available for users that want to test the long
running tests that do the larger send/recv tests.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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John Fastabend says:
====================
This series moves ./samples/sockmap into BPF selftests. There are a
few good reasons to do this. First, by pushing this into selftests
the tests will be run automatically. Second, sockmap was not really
a sample of anything anymore, but rather a large set of tests.
Note: There are three recent fixes outstanding against bpf branch
that can be detected occasionally by the automated tests here.
https://patchwork.ozlabs.org/patch/903138/
https://patchwork.ozlabs.org/patch/903139/
https://patchwork.ozlabs.org/patch/903140/
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The BPF sample sockmap is redundant now that equivelant tests exist
in the BPF selftests. Lets remove this sample and only keep the
selftest version that will be run as part of the selftest suite.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This adds a new test program test_sockmap which is the old sample
sockmap program. By moving the sample program here we can now run it
as part of the self tests suite. To support this a populate_progs()
routine is added to load programs and maps which was previously done
with load_bpf_file(). This is needed because self test libs do not
provide a similar routine. Also we now use the cgroup_helpers
routines to manage cgroup use instead of manually creating one and
supplying it to the CLI.
Notice we keep the CLI around though because it is useful for dbg
and specialized testing.
To run use ./test_sockmap and the result should be,
Summary 660 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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If no options are passed to sockmap after this patch we run a set of
tests using various options and sendmsg/sendpage sizes. This replaces
the sockmap_test.sh script.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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By moving sockmap_test from shell script into C we can run it directly
from selftests, but we can also push the input/output around in proper
structures.
However, keep the CLI options around because they are useful for
debugging when a paticular pattern of msghdr or sockmap options
trips up the sockmap code path.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Since test_sock_addr is not supposed to run by itself,
remove it from TEST_GEN_PROGS and add it to
TEST_GEN_PROGS_EXTENDED. This way, run_tests will
not run test_sock_addr. The corresponding test to run
is test_sock_addr.sh.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Fixes: c0fa1b6c3efc ("bpf: btf: Add BTF tests")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Paul Chaignon says:
====================
Currently, helpers that expect ARG_PTR_TO_MAP_KEY and ARG_PTR_TO_MAP_VALUE
can only access stack and packet memory. This patchset allows these
helpers to directly access map values by passing registers of type
PTR_TO_MAP_VALUE.
The first patch changes the verifier; the second adds new test cases.
The first three versions of this patchset were sent on the iovisor-dev
mailing list only.
Changelogs:
Changes in v5:
- Refactor using check_helper_mem_access.
Changes in v4:
- Rebase.
Changes in v3:
- Bug fixes.
- Negative test cases.
Changes in v2:
- Additional test cases for adjusted maps.
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This patch adds new test cases for accesses to map values from map
helpers.
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Helpers that expect ARG_PTR_TO_MAP_KEY and ARG_PTR_TO_MAP_VALUE can only
access stack and packet memory. Allow these helpers to directly access
map values by passing registers of type PTR_TO_MAP_VALUE.
This change removes the need for an extra copy to the stack when using a
map value to perform a second map lookup, as in the following:
struct bpf_map_def SEC("maps") infobyreq = {
.type = BPF_MAP_TYPE_HASHMAP,
.key_size = sizeof(struct request *),
.value_size = sizeof(struct info_t),
.max_entries = 1024,
};
struct bpf_map_def SEC("maps") counts = {
.type = BPF_MAP_TYPE_HASHMAP,
.key_size = sizeof(struct info_t),
.value_size = sizeof(u64),
.max_entries = 1024,
};
SEC("kprobe/blk_account_io_start")
int bpf_blk_account_io_start(struct pt_regs *ctx)
{
struct info_t *info = bpf_map_lookup_elem(&infobyreq, &ctx->di);
u64 *count = bpf_map_lookup_elem(&counts, info);
(*count)++;
}
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Eyal Birger says:
====================
This patchset adds support for fetching XFRM state information from
an eBPF program called from TC.
The first patch introduces a helper for fetching an XFRM state from the
skb's secpath. The XFRM state is modeled using a new virtual struct which
contains the SPI, peer address, and reqid values of the state; This struct
can be extended in the future to provide additional state information.
The second patch adds a test example in test_tunnel_bpf.sh. The sample
validates the correct extraction of state information by the eBPF program.
v3:
- Kept SPI and peer IPv4 address in state in network byte order
following suggestion from Alexei Starovoitov
v2:
- Fixed two comments by Daniel Borkmann:
- disallow reserved flags in helper call
- avoid compiling in helper code when CONFIG_XFRM is off
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Add a test for fetching xfrm state parameters from a tc program running
on ingress.
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This commit introduces a helper which allows fetching xfrm state
parameters by eBPF programs attached to TC.
Prototype:
bpf_skb_get_xfrm_state(skb, index, xfrm_state, size, flags)
skb: pointer to skb
index: the index in the skb xfrm_state secpath array
xfrm_state: pointer to 'struct bpf_xfrm_state'
size: size of 'struct bpf_xfrm_state'
flags: reserved for future extensions
The helper returns 0 on success. Non zero if no xfrm state at the index
is found - or non exists at all.
struct bpf_xfrm_state currently includes the SPI, peer IPv4/IPv6
address and the reqid; it can be further extended by adding elements to
its end - indicating the populated fields by the 'size' argument -
keeping backwards compatibility.
Typical usage:
struct bpf_xfrm_state x = {};
bpf_skb_get_xfrm_state(skb, 0, &x, sizeof(x), 0);
...
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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This patch cleans up btf.h in uapi:
1) Rename "name" to "name_off" to better reflect it is an offset to the
string section instead of a char array.
2) Remove unused value BTF_FLAGS_COMPR and BTF_MAGIC_SWAP
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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In commit 6870de435b90 ("bpf: make virtio compatible w/
bpf_xdp_adjust_tail") i didn't account for vi->hdr_len during new
packet's length calculation after bpf_prog_run in receive_mergeable.
because of this all packets, if they were passed to the kernel,
were truncated by 12 bytes.
Fixes:6870de435b90 ("bpf: make virtio compatible w/ bpf_xdp_adjust_tail")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Nikita V. Shirokov <tehnerd@tehnerd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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The conversion of rndis friendly name to utf8 uses a standard
kernel routine which is optional in config. Therefore build
would fail for some configurations. Resolve by selecting needed
library.
Fixes: 0fe554a46a0f ("hv_netvsc: propogate Hyper-V friendly name into interface alias")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts were simple overlapping changes in microchip
driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
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David Ahern says:
====================
net/ipv6: Another followup to the fib6_info change
Last one - for this week.
Patches 1, 2 and 7 are more cleanup patches - removing dead code,
moving code from a header to near its single caller, and updating
function name.
Patches 3-5 do some refactoring leading up to patch 6 which fixes
a NULL dereference. I have only managed to trigger a panic once, so
I can not definitively confirm it addresses the problem but it seems
pretty clear that it is a race on removing a 'from' reference on
an rt6_info and another path using that 'from' value to do
cookie checking.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dan reported an imbalance in fib6_check on use of f6i and checking
whether it is null. Since fib6_check is only called if f6i is non-null,
remove the unnecessary check.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When a dst entry is created from a fib entry, the 'from' in rt6_info
is set to the fib entry. The 'from' reference is used most notably for
cookie checking - making sure stale dst entries are updated if the
fib entry is changed.
When a fib entry is deleted, the pcpu routes on it are walked releasing
the fib6_info reference. This is needed for the fib6_info cleanup to
happen and to make sure all device references are released in a timely
manner.
There is a race window when a FIB entry is deleted and the 'from' on the
pcpu route is dropped and the pcpu route hits a cookie check. Handle
this race using rcu on from.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Code move only; no functional change intended.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A later patch protects 'from' in rt6_info and this simplifies the
locking needed by it.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A later patch protects 'from' in rt6_info and this simplifies the
locking needed by it.
With the move, the fib6_info_hold for the uncached_rt is no longer
needed since the rcu_lock is still held.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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rt6_get_cookie_safe takes a fib6_info and checks the sernum of
the node. Update the name to reflect its purpose.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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rt6_clean_expires and rt6_set_expires are no longer used. Removed them.
rt6_update_expires has 1 caller in route.c, so move it from the header.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann says:
====================
pull-request: bpf-next 2018-04-21
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Initial work on BPF Type Format (BTF) is added, which is a meta
data format which describes the data types of BPF programs / maps.
BTF has its roots from CTF (Compact C-Type format) with a number
of changes to it. First use case is to provide a generic pretty
print capability for BPF maps inspection, later work will also
add BTF to bpftool. pahole support to convert dwarf to BTF will
be upstreamed as well (https://github.com/iamkafai/pahole/tree/btf),
from Martin.
2) Add a new xdp_bpf_adjust_tail() BPF helper for XDP that allows
for changing the data_end pointer. Only shrinking is currently
supported which helps for crafting ICMP control messages. Minor
changes in drivers have been added where needed so they recalc
the packet's length also when data_end was adjusted, from Nikita.
3) Improve bpftool to make it easier to feed hex bytes via cmdline
for map operations, from Quentin.
4) Add support for various missing BPF prog types and attach types
that have been added to kernel recently but neither to bpftool
nor libbpf yet. Doc and bash completion updates have been added
as well for bpftool, from Andrey.
5) Proper fix for avoiding to leak info stored in frame data on page
reuse for the two bpf_xdp_adjust_{head,meta} helpers by disallowing
to move the pointers into struct xdp_frame area, from Jesper.
6) Follow-up compile fix from BTF in order to include stdbool.h in
libbpf, from Björn.
7) Few fixes in BPF sample code, that is, a typo on the netdevice
in a comment and fixup proper dump of XDP action code in the
tracepoint exception, from Wang and Jesper.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal fixes from Eduardo Valentin:
"A couple of fixes for the thermal subsystem"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
dt-bindings: thermal: Remove "cooling-{min|max}-level" properties
dt-bindings: thermal: remove no longer needed samsung thermal properties
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of MMC host fixes:
- sdhci-pci: Fixup tuning for AMD for eMMC HS200 mode
- renesas_sdhi_internal_dmac: Avoid data corruption by limiting
DMA RX"
* tag 'mmc-v4.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: renesas_sdhi_internal_dmac: limit DMA RX for old SoCs
mmc: sdhci-pci: Only do AMD tuning for HS200
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Pull MD fixes from Shaohua Li:
"Three small fixes for MD:
- md-cluster fix for faulty device from Guoqing
- writehint fix for writebehind IO for raid1 from Mariusz
- a live lock fix for interrupted recovery from Yufen"
* tag 'md/4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
raid1: copy write hint from master bio to behind bio
md/raid1: exit sync request if MD_RECOVERY_INTR is set
md-cluster: don't update recovery_offset for faulty device
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In do_mount() when the MS_* flags are being converted to MNT_* flags,
MS_RDONLY got accidentally convered to SB_RDONLY.
Undo this change.
Fixes: e462ec50cb5f ("VFS: Differentiate mount flags (MS_*) from internal superblock flags")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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AFS server records get removed from the net->fs_servers tree when
they're deleted, but not from the net->fs_addresses{4,6} lists, which
can lead to an oops in afs_find_server() when a server record has been
removed, for instance during rmmod.
Fix this by deleting the record from the by-address lists before posting
it for RCU destruction.
The reason this hasn't been noticed before is that the fileserver keeps
probing the local cache manager, thereby keeping the service record
alive, so the oops would only happen when a fileserver eventually gets
bored and stops pinging or if the module gets rmmod'd and a call comes
in from the fileserver during the window between the server records
being destroyed and the socket being closed.
The oops looks something like:
BUG: unable to handle kernel NULL pointer dereference at 000000000000001c
...
Workqueue: kafsd afs_process_async_call [kafs]
RIP: 0010:afs_find_server+0x271/0x36f [kafs]
...
Call Trace:
afs_deliver_cb_init_call_back_state3+0x1f2/0x21f [kafs]
afs_deliver_to_call+0x1ee/0x5e8 [kafs]
afs_process_async_call+0x5b/0xd0 [kafs]
process_one_work+0x2c2/0x504
worker_thread+0x1d4/0x2ac
kthread+0x11f/0x127
ret_from_fork+0x24/0x30
Fixes: d2ddc776a458 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull networking fixes from David Miller:
1) Unbalanced refcounting in TIPC, from Jon Maloy.
2) Only allow TCP_MD5SIG to be set on sockets in close or listen state.
Once the connection is established it makes no sense to change this.
From Eric Dumazet.
3) Missing attribute validation in neigh_dump_table(), also from Eric
Dumazet.
4) Fix address comparisons in SCTP, from Xin Long.
5) Neigh proxy table clearing can deadlock, from Wolfgang Bumiller.
6) Fix tunnel refcounting in l2tp, from Guillaume Nault.
7) Fix double list insert in team driver, from Paolo Abeni.
8) af_vsock.ko module was accidently made unremovable, from Stefan
Hajnoczi.
9) Fix reference to freed llc_sap object in llc stack, from Cong Wang.
10) Don't assume netdevice struct is DMA'able memory in virtio_net
driver, from Michael S. Tsirkin.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
net/smc: fix shutdown in state SMC_LISTEN
bnxt_en: Fix memory fault in bnxt_ethtool_init()
virtio_net: sparse annotation fix
virtio_net: fix adding vids on big-endian
virtio_net: split out ctrl buffer
net: hns: Avoid action name truncation
docs: ip-sysctl.txt: fix name of some ipv6 variables
vmxnet3: fix incorrect dereference when rxvlan is disabled
llc: hold llc_sap before release_sock()
MAINTAINERS: Direct networking documentation changes to netdev
atm: iphase: fix spelling mistake: "Tansmit" -> "Transmit"
net: qmi_wwan: add Wistron Neweb D19Q1
net: caif: fix spelling mistake "UKNOWN" -> "UNKNOWN"
net: stmmac: Disable ACS Feature for GMAC >= 4
net: mvpp2: Fix DMA address mask size
net: change the comment of dev_mc_init
net: qualcomm: rmnet: Fix warning seen with fill_info
tun: fix vlan packet truncation
tipc: fix infinite loop when dumping link monitor summary
tipc: fix use-after-free in tipc_nametbl_stop
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"Assorted fixes.
Some of that is only a matter with fault injection (broken handling of
small allocation failure in various mount-related places), but the
last one is a root-triggerable stack overflow, and combined with
userns it gets really nasty ;-/"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Don't leak MNT_INTERNAL away from internal mounts
mm,vmscan: Allow preallocating memory for register_shrinker().
rpc_pipefs: fix double-dput()
orangefs_kill_sb(): deal with allocation failures
jffs2_kill_sb(): deal with failed allocations
hypfs_kill_super(): deal with failed allocations
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git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull eCryptfs fixes from Tyler Hicks:
"Minor cleanups and a bug fix to completely ignore unencrypted
filenames in the lower filesystem when filename encryption is enabled
at the eCryptfs layer"
* tag 'ecryptfs-4.17-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
eCryptfs: don't pass up plaintext names when using filename encryption
ecryptfs: fix spelling mistake: "cadidate" -> "candidate"
ecryptfs: lookup: Don't check if mount_crypt_stat is NULL
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
- isofs memory leak fix
- two fsnotify fixes of event mask handling
- udf fix of UTF-16 handling
- couple other smaller cleanups
* tag 'for_v4.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: Fix leak of UTF-16 surrogates into encoded strings
fs: ext2: Adding new return type vm_fault_t
isofs: fix potential memory leak in mount option parsing
MAINTAINERS: add an entry for FSNOTIFY infrastructure
fsnotify: fix typo in a comment about mark->g_list
fsnotify: fix ignore mask logic in send_to_group()
isofs compress: Remove VLA usage
fs: quota: Replace GFP_ATOMIC with GFP_KERNEL in dquot_init
fanotify: fix logic of events on child
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Pull HID updates from Jiri Kosina:
- suspend/resume handling fix for Raydium I2C-connected touchscreen
from Aaron Ma
- protocol fixup for certain BT-connected Wacoms from Aaron Armstrong
Skomra
- battery level reporting fix on BT-connected mice from Dmitry Torokhov
- hidraw race condition fix from Rodrigo Rivas Costa
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: i2c-hid: fix inverted return value from i2c_hid_command()
HID: i2c-hid: Fix resume issue on Raydium touchscreen device
HID: wacom: bluetooth: send exit report for recent Bluetooth devices
HID: hidraw: Fix crash on HIDIOCGFEATURE with a destroyed device
HID: input: fix battery level reporting on BT mice
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching fix from Jiri Kosina:
"Shadow variable API list_head initialization fix from Petr Mladek"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching:
livepatch: Allow to call a custom callback when freeing shadow variables
livepatch: Initialize shadow variables safely by a custom callback
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Currently, the tun driver, in absence of an eBPF steering program,
always compute the rxhash in its rx path, even when such value
is later unused due to additional checks (
This changeset moves the all the related checks just before the
__skb_get_hash_symmetric(), so that the latter is no more computed
when unneeded.
Also replace an unneeded RCU section with rcu_access_pointer().
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to dump lan78xx family registers using ethtool, add
support at lan78xx driver level.
Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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