30 Oct, 2012
5 commits
-
Acked-by: Ian Campbell
Reported-by: Dan Carpenter
Signed-off-by: Jan Beulich
[v1: Rebased on upstream]
Signed-off-by: Konrad Rzeszutek Wilk -
Backend drivers shouldn't transistion to CLOSED unless the frontend is
CLOSED. If a backend does transition to CLOSED too soon then the
frontend may not see the CLOSING state and will not properly shutdown.So, treat an unexpected backend CLOSED state the same as CLOSING.
Acked-by: Dmitry Torokhov
Signed-off-by: David Vrabel
Signed-off-by: Konrad Rzeszutek Wilk -
Backend drivers shouldn't transistion to CLOSED unless the frontend is
CLOSED. If a backend does transition to CLOSED too soon then the
frontend may not see the CLOSING state and will not properly shutdown.So, treat an unexpected backend CLOSED state the same as CLOSING.
Acked-by: Florian Tobias Schandinat
Signed-off-by: David Vrabel
Signed-off-by: Konrad Rzeszutek Wilk -
map->kmap_ops allocated in gntdev_alloc_map() wasn't freed by
gntdev_put_map().Add a gntdev_free_map() helper function to free everything allocated
by gntdev_alloc_map().Signed-off-by: David Vrabel
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk -
Signed-off-by: Olaf Hering
Signed-off-by: Konrad Rzeszutek Wilk
20 Oct, 2012
16 commits
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I saw this on ARM:
linux/drivers/xen/dbgp.c:11:23: warning: unused variable 'ctrlr' [-Wunused-variable]Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Acked-by: Jan Beulich
Signed-off-by: Konrad Rzeszutek Wilk -
* commit 'v3.7-rc1': (10892 commits)
Linux 3.7-rc1
x86, boot: Explicitly include autoconf.h for hostprogs
perf: Fix UAPI fallout
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h
perf: Handle new rbtree implementation
procfs: don't need a PATH_MAX allocation to hold a string representation of an int
vfs: embed struct filename inside of names_cache allocation if possible
audit: make audit_inode take struct filename
vfs: make path_openat take a struct filename pointer
vfs: turn do_path_lookup into wrapper around struct filename variant
audit: allow audit code to satisfy getname requests from its names_list
vfs: define struct filename and have getname() return it
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids
... -
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
This is now a xen_pfn_t.
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
In 32 bit guests, if a userspace process has %eax == -ERESTARTSYS
(-512) or -ERESTARTNOINTR (-513) when it is interrupted by an event
/and/ the process has a pending signal then %eip (and %eax) are
corrupted when returning to the main process after handling the
signal. The application may then crash with SIGSEGV or a SIGILL or it
may have subtly incorrect behaviour (depending on what instruction it
returned to).The occurs because handle_signal() is incorrectly thinking that there
is a system call that needs to restarted so it adjusts %eip and %eax
to re-execute the system call instruction (even though user space had
not done a system call).If %eax == -514 (-ERESTARTNOHAND (-514) or -ERESTART_RESTARTBLOCK
(-516) then handle_signal() only corrupted %eax (by setting it to
-EINTR). This may cause the application to crash or have incorrect
behaviour.handle_signal() assumes that regs->orig_ax >= 0 means a system call so
any kernel entry point that is not for a system call must push a
negative value for orig_ax. For example, for physical interrupts on
bare metal the inverse of the vector is pushed and page_fault() sets
regs->orig_ax to -1, overwriting the hardware provided error code.xen_hypervisor_callback() was incorrectly pushing 0 for orig_ax
instead of -1.Classic Xen kernels pushed %eax which works as %eax cannot be both
non-negative and -RESTARTSYS (etc.), but using -1 is consistent with
other non-system call entry points and avoids some of the tests in
handle_signal().There were similar bugs in xen_failsafe_callback() of both 32 and
64-bit guests. If the fault was corrected and the normal return path
was used then 0 was incorrectly pushed as the value for orig_ax.Signed-off-by: David Vrabel
Acked-by: Jan Beulich
Acked-by: Ian Campbell
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk -
This makes common code less ifdef-y and is consistent with PVHVM on
x86.Also note that phys_to_machine_mapping_valid should take a pfn
argument and make it do so.Add __set_phys_to_machine, make set_phys_to_machine a simple wrapper
(on systems with non-nop implementations the outer one can allocate
new p2m pages).Make __set_phys_to_machine check for identity mapping or invalid only.
Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
This breaks on !X86 and AFAICT is not required on X86 either.
Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
This correctly sizes it as 64 bit on ARM but leaves it as unsigned
long on x86 (therefore no intended change on x86).The long and ulong guest handles are now unused (and a bit dangerous)
so remove them.Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
On ARM I see:
drivers/xen/events.c:280:13: warning: 'pirq_check_eoi_map' defined but not used
[-Wunused-function]Signed-off-by: Ian Campbell
Cc: Stefano Stabellini
Signed-off-by: Konrad Rzeszutek Wilk -
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
Define PRI macros for xen_ulong_t and xen_pfn_t and use to fix:
drivers/xen/sys-hypervisor.c:288:4: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'xen_ulong_t' [-Wformat]Ideally this would use PRIx64 on ARM but these (or equivalent) don't
seem to be available in the kernel.Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
Fixes build error on ARM:
drivers/xen/sys-hypervisor.c: In function 'uuid_show_fallback':
drivers/xen/sys-hypervisor.c:127:2: error: implicit declaration of function 'IS_ERR' [-Werror=implicit-function-declaration]
drivers/xen/sys-hypervisor.c:128:3: error: implicit declaration of function 'PTR_ERR' [-Werror=implicit-function-declaration]Acked-by: Stefano Stabellini
Signed-off-by: Ian Campbell
Signed-off-by: Konrad Rzeszutek Wilk -
This breaks on ARM. This quirk is not necessary on ARM because no
hypervisors of that vintage exist for that architecture (port is too
new).Signed-off-by: Ian Campbell
[v1: Moved the ifdef inside the function per Jan Beulich suggestion]
Signed-off-by: Konrad Rzeszutek Wilk -
VFs are reported as single-function devices in PCI_HEADER_TYPE, which
causes pci_scan_slot() in the PV domU to skip all VFs beyond #0 in the
pciback-provided slot. Avoid this by assigning each VF to a separate
virtual slot.Acked-by: Jan Beulich
Signed-off-by: Laszlo Ersek
Signed-off-by: Konrad Rzeszutek Wilk -
We were missing the 'void' on the parameter arguments.
Reported-by: Fengguang Wu
Signed-off-by: Konrad Rzeszutek Wilk -
Remove duplicated include.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)CC: stable@vger.kernel.org
Signed-off-by: Wei Yongjun
Signed-off-by: Konrad Rzeszutek Wilk
15 Oct, 2012
5 commits
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Pull MIPS update from Ralf Baechle:
"Cleanups and fixes for breakage that occured earlier during this merge
phase. Also a few patches that didn't make the first pull request.
Of those is the Alchemy work that merges code for many of the SOCs and
evaluation boards thus among other code shrinkage, reduces the number
of MIPS defconfigs by 5."* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (22 commits)
MIPS: SNI: Switch RM400 serial to SCCNXP driver
MIPS: Remove unused empty_bad_pmd_table[] declaration.
MIPS: MT: Remove kspd.
MIPS: Malta: Fix section mismatch.
MIPS: asm-offset.c: Delete unused irq_cpustat_t struct offsets.
MIPS: Alchemy: Merge PB1100/1500 support into DB1000 code.
MIPS: Alchemy: merge PB1550 support into DB1550 code
MIPS: Alchemy: Single kernel for DB1200/1300/1550
MIPS: Optimize TLB refill for RI/XI configurations.
MIPS: proc: Cleanup printing of ASEs.
MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.
MIPS: Add detection of DSP ASE Revision 2.
MIPS: Optimize pgd_init and pmd_init
MIPS: perf: Add perf functionality for BMIPS5000
MIPS: perf: Split the Kconfig option CONFIG_MIPS_MT_SMP
MIPS: perf: Remove unnecessary #ifdef
MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
MIPS: perf: Change the "mips_perf_event" table unsupported indicator.
MIPS: Align swapper_pg_dir to 64K for better TLB Refill code.
vmlinux.lds.h: Allow architectures to add sections to the front of .bss
... -
Pull module signing support from Rusty Russell:
"module signing is the highlight, but it's an all-over David Howells frenzy..."Hmm "Magrathea: Glacier signing key". Somebody has been reading too much HHGTTG.
* 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (37 commits)
X.509: Fix indefinite length element skip error handling
X.509: Convert some printk calls to pr_devel
asymmetric keys: fix printk format warning
MODSIGN: Fix 32-bit overflow in X.509 certificate validity date checking
MODSIGN: Make mrproper should remove generated files.
MODSIGN: Use utf8 strings in signer's name in autogenerated X.509 certs
MODSIGN: Use the same digest for the autogen key sig as for the module sig
MODSIGN: Sign modules during the build process
MODSIGN: Provide a script for generating a key ID from an X.509 cert
MODSIGN: Implement module signature checking
MODSIGN: Provide module signing public keys to the kernel
MODSIGN: Automatically generate module signing keys if missing
MODSIGN: Provide Kconfig options
MODSIGN: Provide gitignore and make clean rules for extra files
MODSIGN: Add FIPS policy
module: signature checking hook
X.509: Add a crypto key parser for binary (DER) X.509 certificates
MPILIB: Provide a function to read raw data into an MPI
X.509: Add an ASN.1 decoder
X.509: Add simple ASN.1 grammar compiler
... -
The hostprogs need access to the CONFIG_* symbols found in
include/generated/autoconf.h. But commit abbf1590de22 ("UAPI: Partition
the header include path sets and add uapi/ header directories") replaced
$(LINUXINCLUDE) with $(USERINCLUDE) which doesn't contain the necessary
include paths.This has the undesirable effect of breaking the EFI boot stub because
the #ifdef CONFIG_EFI_STUB code in arch/x86/boot/tools/build.c is
never compiled.It should also be noted that because $(USERINCLUDE) isn't exported by
the top-level Makefile it's actually empty in arch/x86/boot/Makefile.Cc: H. Peter Anvin
Cc: Ingo Molnar
Acked-by: David Howells
Signed-off-by: Matt Fleming
Signed-off-by: Linus Torvalds -
The UAPI commits forgot to test tooling builds such as tools/perf/,
and this fixes the fallout.Manual conversion.
Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds
14 Oct, 2012
9 commits
-
Pull ARM update from Russell King:
"This is the final round of stuff for ARM, left until the end of the
merge window to reduce the number of conflicts. This set contains the
ARM part of David Howells UAPI changes, and a fix to the ordering of
'select' statements in ARM Kconfig files (see the appropriate commit
for why this happened - thanks to Andrew Morton for pointing out the
problem.)I've left this as long as I dare for this window to avoid conflicts,
and I regenerated the config patch yesterday, posting it to our
mailing list for review and testing. I have several acks which
include successful test reports for it.However, today I notice we've got new conflicts with previously unseen
code... though that conflict should be trivial (it's my changes vs a
one liner.)"* 'late-for-linus' of git://git.linaro.org/people/rmk/linux-arm:
ARM: config: make sure that platforms are ordered by option string
ARM: config: sort select statements alphanumerically
UAPI: (Scripted) Disintegrate arch/arm/include/asmFix up fairly conflict in arch/arm/Kconfig (the select re-organization
vs recent addition of GENERIC_KERNEL_EXECVE) -
Pull UAPI disintegration for include/linux/{,byteorder/}*.h from David Howells:
"The patches contained herein do the following:(1) Remove kernel-only stuff in linux/ppp-comp.h from the UAPI. I checked
this with Paul Mackerras before I created the patch and he suggested some
extra bits to unexport.(2) Remove linux/blk_types.h entirely from the UAPI as none of it is userspace
applicable, and remove from the UAPI that part of linux/fs.h that was the
reason for linux/blk_types.h being exported in the first place. I
discussed this with Jens Axboe before creating the patch.(3) The big patch of the series to disintegrate include/linux/*.h as a unit.
This could be split up, though there would be collisions in moving stuff
between the two Kbuild files when the parts are merged as that file is
sorted alphabetically rather than being grouped by subsystem.Of this set of headers, 17 files have changed in the UAPI exported region
since the 4th and only 8 since the 9th so there isn't much change in this
area - as one might expect.It should be pretty obvious and straightforward if it does come to fixing
up: stuff in __KERNEL__ guards stays where it is and stuff outside moves
to the same file in the include/uapi/linux/ directory.If a new file appears then things get a bit more complicated as the
"headers +=" line has to move to include/uapi/linux/Kbuild. Only one new
file has appeared since the 9th and I judge this type of event relatively
unlikely.(4) A patch to disintegrate include/linux/byteorder/*.h as a unit.
Signed-off-by: David Howells "
* tag 'disintegrate-main-20121013' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/linux/byteorder
UAPI: (Scripted) Disintegrate include/linux
UAPI: Unexport linux/blk_types.h
UAPI: Unexport part of linux/ppp-comp.h -
Pull spi UAPI disintegration from David Howells:
"This is to complete part of the Userspace API (UAPI) disintegration
for which the preparatory patches were pulled recently. After these
patches, userspace headers will be segregated into:include/uapi/linux/.../foo.h
for the userspace interface stuff, and:
include/linux/.../foo.h
for the strictly kernel internal stuff.
Signed-off-by: David Howells
Acked-by: Grant Likely "* tag 'disintegrate-spi-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/linux/spi -
Pull OpenRISC uapi disintegration from Jonas Bonn:
"OpenRISC UAPI disintegration work from David Howells"* tag 'openrisc-uapi' of git://openrisc.net/jonas/linux:
UAPI: (Scripted) Disintegrate arch/openrisc/include/asm -
Pull user namespace compile fixes from Eric W Biederman:
"This tree contains three trivial fixes. One compiler warning, one
thinko fix, and one build fix"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
btrfs: Fix compilation with user namespace support enabled
userns: Fix posix_acl_file_xattr_userns gid conversion
userns: Properly print bluetooth socket uids -
Pull md updates from NeilBrown:
- "discard" support, some dm-raid improvements and other assorted bits
and pieces.* tag 'md-3.7' of git://neil.brown.name/md: (29 commits)
md: refine reporting of resync/reshape delays.
md/raid5: be careful not to resize_stripes too big.
md: make sure manual changes to recovery checkpoint are saved.
md/raid10: use correct limit variable
md: writing to sync_action should clear the read-auto state.
Subject: [PATCH] md:change resync_mismatches to atomic64_t to avoid races
md/raid5: make sure to_read and to_write never go negative.
md: When RAID5 is dirty, force reconstruct-write instead of read-modify-write.
md/raid5: protect debug message against NULL derefernce.
md/raid5: add some missing locking in handle_failed_stripe.
MD: raid5 avoid unnecessary zero page for trim
MD: raid5 trim support
md/bitmap:Don't use IS_ERR to judge alloc_page().
md/raid1: Don't release reference to device while handling read error.
raid: replace list_for_each_continue_rcu with new interface
add further __init annotations to crypto/xor.c
DM RAID: Fix for "sync" directive ineffectiveness
DM RAID: Fix comparison of index and quantity for "rebuild" parameter
DM RAID: Add rebuild capability for RAID10
DM RAID: Move 'rebuild' checking code to its own function
... -
The large platform selection choice should be sorted by option string
so it's easy to find the platform you're looking for. Fix the few
options which are out of this order.Acked-by: Tony Lindgren
Signed-off-by: Russell King -
As suggested by Andrew Morton:
This is a pet peeve of mine. Any time there's a long list of items
(header file inclusions, kconfig entries, array initalisers, etc) and
someone wants to add a new item, they *always* go and stick it at the
end of the list.Guys, don't do this. Either put the new item into a randomly-chosen
position or, probably better, alphanumerically sort the list.lets sort all our select statements alphanumerically. This commit was
created by the following perl:while (<>) {
while (/\\\s*$/) {
$_ .= <>;
}
undef %selects if /^\s*config\s+/;
if (/^\s+select\s+(\w+).*/) {
if (defined($selects{$1})) {
if ($selects{$1} eq $_) {
print STDERR "Warning: removing duplicated $1 entry\n";
} else {
print STDERR "Error: $1 differently selected\n".
"\tOld: $selects{$1}\n".
"\tNew: $_\n";
exit 1;
}
}
$selects{$1} = $_;
next;
}
if (%selects and (/^\s*$/ or /^\s+help/ or /^\s+---help---/ or
/^endif/ or /^endchoice/)) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
undef %selects;
}
print;
}
if (%selects) {
foreach $k (sort (keys %selects)) {
print "$selects{$k}";
}
}It found two duplicates:
Warning: removing duplicated S5P_SETUP_MIPIPHY entry
Warning: removing duplicated HARDIRQS_SW_RESEND entryand they are identical duplicates, hence the shrinkage in the diffstat
of two lines.We have four testers reporting success of this change (Tony, Stephen,
Linus and Sekhar.)Acked-by: Jason Cooper
Acked-by: Tony Lindgren
Acked-by: Stephen Warren
Acked-by: Linus Walleij
Acked-by: Sekhar Nori
Signed-off-by: Russell King
13 Oct, 2012
5 commits
-
Signed-off-by: David Howells
Acked-by: Arnd Bergmann
Acked-by: Thomas Gleixner
Acked-by: Michael Kerrisk
Acked-by: Paul E. McKenney
Acked-by: Dave Jones -
Signed-off-by: David Howells
Acked-by: Arnd Bergmann
Acked-by: Thomas Gleixner
Acked-by: Michael Kerrisk
Acked-by: Paul E. McKenney
Acked-by: Dave Jones -
It seems that was linux/blk_types.h incorrectly exported to fix up some missing
bits required by the exported parts of linux/fs.h (READ, WRITE, READA, etc.).So unexport linux/blk_types.h and unexport the relevant bits of linux/fs.h.
Signed-off-by: David Howells
cc: Jens Axboe
cc: Tejun Heo
cc: Al Viro -
Unexport part of linux/ppp-comp.h as userspace can't make use of that bit.
Signed-off-by: David Howells
cc: Paul Mackerras
cc: David Miller -
UAPI Disintegration 2012-10-09
* tag 'disintegrate-openrisc-20121009' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate arch/openrisc/include/asm
