Buildresult: powerpc-next/mpc86xx_defconfig/powerpc-gcc4.6 built on Mar 7 2018, 15:40

kisskb

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Status:	OK
Date/Time:	Mar 7 2018, 15:40
Duration:	0:01:49.891965
Builder:	ka1
Revision:	powerpc/mm/slice: use the dynamic high slice size to limit bitmap operations (`82bc47f26969f6ed290cda529b9893941923c0f4)`
Target:	powerpc-next/mpc86xx_defconfig/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3)
Config:	mpc86xx_defconfig (download)
Log:	Download original Possible warnings (3) kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 82bc47f26969f6ed290cda529b9893941923c0f4^{commit} 82bc47f26969f6ed290cda529b9893941923c0f4 already have revision, skipping fetch # git checkout -q -f -B kisskb 82bc47f26969f6ed290cda529b9893941923c0f4 # git clean -qxdf # git log -1 commit 82bc47f26969f6ed290cda529b9893941923c0f4 Author: Nicholas Piggin <npiggin@gmail.com> Date: Wed Mar 7 11:37:18 2018 +1000 powerpc/mm/slice: use the dynamic high slice size to limit bitmap operations The number of high slices a process might use now depends on its address space size, and what allocation address it has requested. This patch uses that limit throughout call chains where possible, rather than use the fixed SLICE_NUM_HIGH for bitmap operations. This saves some cost for processes that don't use very large address spaces. Perormance numbers aren't changed significantly, this may change with larger address spaces or different mmap access patterns that require more slice mask building. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 82bc47f26969f6ed290cda529b9893941923c0f4 # < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc86xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc86xx_defconfig # make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc86xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here INFO: Uncompressed kernel (size 0x9a2ac4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xa00000) Image Name: Linux-4.16.0-rc4-g82bc47f Created: Wed Mar 7 15:42:31 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 4719561 Bytes = 4608.95 kB = 4.50 MB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-next_mpc86xx_defconfig_powerpc # Build took: 0:01:49.891965

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