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Peter Zijlstra 0f5225b024 locking/mutex, drm: Introduce mutex_trylock_recursive() 
By popular DRM demand, introduce mutex_trylock_recursive() to fix up the
two GEM users.

Without this it is very easy for these drivers to get stuck in
low-memory situations and trigger OOM. Work is in progress to remove the
need for this in at least i915.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ding Tianhong <dingtianhong@huawei.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Jason Low <jason.low2@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Terry Rudd <terry.rudd@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Will Deacon <Will.Deacon@arm.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-11-15 14:19:55 +01:00
..
basic
fixdep: faster CONFIG_ search
2016-08-24 22:34:19 +02:00
coccinelle
Coccinelle: flag conditions with no effect
2016-10-11 09:57:17 +02:00
dtc
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gcc-plugins
latent_entropy: Fix wrong gcc code generation with 64 bit variables
2016-10-31 11:30:41 -07:00
gdb
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genksyms
kbuild: Regenerate genksyms lexer
2016-08-25 20:03:51 +02:00
kconfig
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ksymoops
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mod
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
package
builddeb: Skip gcc-plugins when not configured
2016-08-16 10:16:38 +02:00
selinux
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tracing
ftrace/scripts: Add helper script to bisect function tracing problem functions
2016-09-21 13:56:55 -04:00
.gitignore
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adjust_autoksyms.sh
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analyze_suspend.py
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asn1_compiler.c
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bloat-o-meter
scripts/bloat-o-meter: fix percent on <1% changes
2016-07-26 16:19:19 -07:00
bootgraph.pl
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check_extable.sh
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check-lc_ctype.c
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checkincludes.pl
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checkkconfigsymbols.py
checkkconfigsymbols: use arglist instead of cmd string
2016-08-28 11:08:34 +02:00
checkpatch.pl
locking/mutex, drm: Introduce mutex_trylock_recursive()
2016-11-15 14:19:55 +01:00
checkstack.pl
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checksyscalls.sh
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checkversion.pl
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cleanfile
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cleanpatch
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coccicheck
scripts/coccicheck: Update reference for the corresponding documentation
2016-10-11 09:50:43 +02:00
config
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conmakehash.c
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const_structs.checkpatch
const_structs.checkpatch: add frequently used from Julia Lawall's list
2016-10-11 15:06:30 -07:00
decode_stacktrace.sh
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decodecode
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depmod.sh
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diffconfig
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docproc.c
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export_report.pl
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extract_xc3028.pl
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extract-cert.c
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extract-ikconfig
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extract-module-sig.pl
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extract-sys-certs.pl
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extract-vmlinux
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faddr2line
scripts/faddr2line: improve on base path filtering a bit
2016-09-19 14:49:08 -07:00
gcc-goto.sh
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gcc-ld
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gcc-plugin.sh
gcc-plugins: abort builds cleanly when not supported
2016-08-08 17:49:05 -07:00
gcc-version.sh
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gcc-x86_32-has-stack-protector.sh
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gcc-x86_64-has-stack-protector.sh
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gen_initramfs_list.sh
initramfs: Escape colons in depfile
2016-09-23 10:35:32 +02:00
get_dvb_firmware
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get_maintainer.pl
get_maintainer: quiet noisy implicit -f vcs_file_exists checking
2016-08-26 17:39:34 -07:00
gfp-translate
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headerdep.pl
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headers_check.pl
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headers_install.sh
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headers.sh
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insert-sys-cert.c
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kallsyms.c
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Kbuild.include
kbuild: no gcc-plugins during cc-option tests
2016-08-08 17:49:05 -07:00
kernel-doc
docs: Special-case function-pointer parameters in kernel-doc
2016-09-06 08:02:49 -06:00
kernel-doc-xml-ref
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ld-version.sh
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Lindent
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link-vmlinux.sh
kbuild: allow architectures to use thin archives instead of ld -r
2016-09-09 10:31:19 +02:00
Makefile
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Makefile.asm-generic
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Makefile.build
kbuild: allow architectures to use thin archives instead of ld -r
2016-09-09 10:31:19 +02:00
Makefile.clean
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Makefile.dtbinst
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Makefile.extrawarn
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Makefile.fwinst
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Makefile.gcc-plugins
gcc-plugins: Add latent_entropy plugin
2016-10-10 14:51:44 -07:00
Makefile.headersinst
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Makefile.help
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Makefile.host
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Makefile.kasan
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Makefile.lib
Merge branch 'akpm' (patches from Andrew)
2016-08-02 21:08:07 -04:00
Makefile.modbuiltin
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Makefile.modinst
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Makefile.modpost
kbuild: add arch specific post-link Makefile
2016-09-09 10:47:00 +02:00
Makefile.modsign
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Makefile.ubsan
ubsan: allow to disable the null sanitizer
2016-09-20 14:26:08 +02:00
makelst
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markup_oops.pl
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mkcompile_h
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mkmakefile
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mksysmap
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mkuboot.sh
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mkversion
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module-common.lds
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namespace.pl
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objdiff
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patch-kernel
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pnmtologo.c
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profile2linkerlist.pl
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prune-kernel
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recordmcount.c
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
recordmcount.h
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recordmcount.pl
nmi_backtrace: generate one-line reports for idle cpus
2016-10-07 18:46:30 -07:00
setlocalversion
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show_delta
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sign-file.c
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sortextable.c
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sortextable.h
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spelling.txt
spelling.txt: "modeled" is spelt correctly
2016-10-07 18:46:30 -07:00
stackdelta
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stackusage
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tags.sh
scripts/tags.sh: enable code completion in VIM
2016-10-11 15:06:33 -07:00
unifdef.c
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ver_linux
ver_linux: rename ver_linux.awk to ver_linux
2016-08-31 13:59:31 +02:00
xen-hypercalls.sh
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xz_wrap.sh
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