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Chris Wilson a2a457c816 drm/i915/gt: Use i915_vm_put on ppgtt_create error paths 
commit 20e377e7b2 upstream.

Now that the scratch page and page directories have a reference back to
the i915_address_space, we cannot do an immediate free of the ppgtt upon
error as those buffer objects will perform a later i915_vm_put in their
deferred frees.

The downside is that by replacing the onion unwind along the error
paths, the ppgtt cleanup must handle a partially constructed vm. This
includes ensuring that the vm->cleanup is set prior to the error path.

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6900
Signed-off-by: Chris Wilson <chris.p.wilson@intel.com>
Fixes: 4d8151ae53 ("drm/i915: Don't free shared locks while shared")
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: <stable@vger.kernel.org> # v5.14+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220926153333.102195-1-matthew.auld@intel.com
(cherry picked from commit c286558f58)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-24 09:57:00 +02:00
arch KVM: VMX: Drop bits 31:16 when shoving exception error code into VMCS 2022-10-24 09:56:59 +02:00
block blk-wbt: call rq_qos_add() after wb_normal is initialized 2022-10-24 09:56:59 +02:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-28 11:32:27 +02:00
crypto KEYS: asymmetric: enforce SM2 signature use pkey algo 2022-08-17 15:16:17 +02:00
Documentation fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE 2022-10-24 09:56:52 +02:00
drivers drm/i915/gt: Use i915_vm_put on ppgtt_create error paths 2022-10-24 09:57:00 +02:00
fs ext4: update 'state->fc_regions_size' after successful memory allocation 2022-10-24 09:56:56 +02:00
include blk-throttle: fix that io throttle can only work for single bio 2022-10-24 09:56:59 +02:00
init arm64: fix rodata=full 2022-08-31 17:18:19 +02:00
io_uring io_uring: correct pinned_vm accounting 2022-10-24 09:56:40 +02:00
ipc ipc: Free mq_sysctls if ipc namespace creation failed 2022-06-22 17:47:41 -05:00
kernel tracing: Fix reading strings from synthetic events 2022-10-24 09:56:58 +02:00
lib Makefile.debug: re-enable debug info for .S files 2022-09-28 11:32:27 +02:00
LICENSES
mm mm/mmap: undo ->mmap() when arch_validate_flags() fails 2022-10-24 09:56:48 +02:00
net io_uring/af_unix: defer registered files gc to io_uring release 2022-10-24 09:56:40 +02:00
samples sample: bpf: xdp_router_ipv4: Allow the kernel to send arp requests 2022-08-17 15:14:25 +02:00
scripts Makefile.extrawarn: Move -Wcast-function-type-strict to W=1 2022-10-12 09:51:23 +02:00
security efi: Correct Macmini DMI match in uefi cert quirk 2022-10-15 08:01:43 +02:00
sound ASoC: wcd934x: fix order of Slimbus unprepare/disable 2022-10-24 09:56:44 +02:00
tools perf tests record: Fail the test if the 'errs' counter is not zero 2022-10-05 10:40:54 +02:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: Unconditionally get a ref to /dev/kvm module when creating a VM 2022-08-25 11:45:05 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap ARM: SoC fixes for 5.19, part 4 2022-07-27 09:43:07 -07:00
COPYING
CREDITS MAINTAINERS: mark ARM/PALM TREO SUPPORT orphan 2022-07-07 15:17:00 +02:00
Kbuild
Kconfig
MAINTAINERS io_uring: move to separate directory 2022-08-17 15:14:20 +02:00
Makefile Linux 5.19.16 2022-10-15 08:01:46 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.