# git rev-parse -q --verify f01c30de86f1047e9bae1b1b1417b0ce8dcd15b1^{commit}
f01c30de86f1047e9bae1b1b1417b0ce8dcd15b1
already have revision, skipping fetch
# git checkout -q -f -B kisskb f01c30de86f1047e9bae1b1b1417b0ce8dcd15b1
# git clean -qxdf
# < git log -1
# commit f01c30de86f1047e9bae1b1b1417b0ce8dcd15b1
# Merge: d9315f5634c9 9b8523423b23
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Nov 13 16:07:53 2020 -0800
# 
#     Merge tag 'vfs-5.10-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
#     
#     Pull fs freeze fix and cleanups from Darrick Wong:
#      "A single vfs fix for 5.10, along with two subsequent cleanups.
#     
#       A very long time ago, a hack was added to the vfs fs freeze protection
#       code to work around lockdep complaints about XFS, which would try to
#       run a transaction (which requires intwrite protection) to finalize an
#       xfs freeze (by which time the vfs had already taken intwrite).
#     
#       Fast forward a few years, and XFS fixed the recursive intwrite problem
#       on its own, and the hack became unnecessary. Fast forward almost a
#       decade, and latent bugs in the code converting this hack from freeze
#       flags to freeze locks combine with lockdep bugs to make this reproduce
#       frequently enough to notice page faults racing with freeze.
#     
#       Since the hack is unnecessary and causes thread race errors, just get
#       rid of it completely. Making this kind of vfs change midway through a
#       cycle makes me nervous, but a large enough number of the usual
#       VFS/ext4/XFS/btrfs suspects have said this looks good and solves a
#       real problem vector.
#     
#       And once that removal is done, __sb_start_write is now simple enough
#       that it becomes possible to refactor the function into smaller,
#       simpler static inline helpers in linux/fs.h. The cleanup is
#       straightforward.
#     
#       Summary:
#     
#        - Finally remove the "convert to trylock" weirdness in the fs freezer
#          code. It was necessary 10 years ago to deal with nested
#          transactions in XFS, but we've long since removed that; and now
#          this is causing subtle race conditions when lockdep goes offline
#          and sb_start_* aren't prepared to retry a trylock failure.
#     
#        - Minor cleanups of the sb_start_* fs freeze helpers"
#     
#     * tag 'vfs-5.10-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
#       vfs: move __sb_{start,end}_write* to fs.h
#       vfs: separate __sb_start_write into blocking and non-blocking helpers
#       vfs: remove lockdep bogosity in __sb_start_write
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 f01c30de86f1047e9bae1b1b1417b0ce8dcd15b1
# < make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_64BIT=n
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/linux/page_counter.h:5,
                 from /kisskb/src/mm/memcontrol.c:25:
/kisskb/src/mm/memcontrol.c: In function 'memcg_reparent_objcgs':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/mm/memcontrol.c:328:2: note: in expansion of macro 'xchg'
  xchg(&objcg->memcg, parent);
  ^
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/mm/memcontrol.c:335:3: note: in expansion of macro 'xchg'
   xchg(&iter->memcg, parent);
   ^
/kisskb/src/drivers/tty/serial/sunzilog.c:1128:13: warning: 'sunzilog_putchar' defined but not used [-Wunused-function]
 static void sunzilog_putchar(struct uart_port *port, int ch)
             ^
/kisskb/src/drivers/misc/habanalabs/common/command_buffer.c: In function 'hl_cb_mmap':
/kisskb/src/drivers/misc/habanalabs/common/command_buffer.c:512:44: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  rc = hdev->asic_funcs->cb_mmap(hdev, vma, (void *) cb->kernel_address,
                                            ^
/kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/ocfs2/file.c:13:
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/fs/ocfs2/file.c:2419:3: note: in expansion of macro 'xchg'
   xchg(&iocb->ki_complete, saved_ki_complete);
   ^
/kisskb/src/drivers/media/platform/marvell-ccic/mmp-driver.c:310:12: warning: 'mmpcam_runtime_resume' defined but not used [-Wunused-function]
 static int mmpcam_runtime_resume(struct device *dev)
            ^
/kisskb/src/drivers/media/platform/marvell-ccic/mmp-driver.c:324:12: warning: 'mmpcam_runtime_suspend' defined but not used [-Wunused-function]
 static int mmpcam_runtime_suspend(struct device *dev)
            ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:11:
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4463:4: note: in expansion of macro 'xchg'
    xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
    ^
WARNING: modpost: EXPORT symbol "bzero_1page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_exit" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_try" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ndelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ashrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__udelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__lshrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_write_enter" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ashldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__copy_1page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__muldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__divdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_enter" [vmlinux] version generation failed, symbol will not be versioned.
arch/sparc/kernel/head_32.o: In function `current_pc':
arch/sparc/kernel/head_32.o:(.head.text+0x5040): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `halt_notsup':
arch/sparc/kernel/head_32.o:(.head.text+0x5100): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `leon_init':
arch/sparc/kernel/head_32.o:(.init.text+0xa4): relocation truncated to fit: R_SPARC_WDISP22 against symbol `leon_smp_cpu_startup' defined in .text section in arch/sparc/kernel/trampoline_32.o
arch/sparc/kernel/process_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/process_32.o:(.fixup+0xc): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x10): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x1c): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x28): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x34): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x40): additional relocation overflows omitted from the output
make[1]: *** [/kisskb/src/Makefile:1164: vmlinux] Error 1
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 24 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sparc-allmodconfig_sparc64
# Build took: 0:15:28.496762