# git rev-parse -q --verify af0c9af1b3f66052c369d08be3f60fa9a9559e48^{commit}
af0c9af1b3f66052c369d08be3f60fa9a9559e48
already have revision, skipping fetch
# git checkout -q -f -B kisskb af0c9af1b3f66052c369d08be3f60fa9a9559e48
# git clean -qxdf
# < git log -1
# commit af0c9af1b3f66052c369d08be3f60fa9a9559e48
# Author: Waiman Long <longman@redhat.com>
# Date:   Wed Jan 30 13:52:38 2019 -0500
# 
#     fs/dcache: Track & report number of negative dentries
#     
#     The current dentry number tracking code doesn't distinguish between
#     positive & negative dentries.  It just reports the total number of
#     dentries in the LRU lists.
#     
#     As excessive number of negative dentries can have an impact on system
#     performance, it will be wise to track the number of positive and
#     negative dentries separately.
#     
#     This patch adds tracking for the total number of negative dentries in
#     the system LRU lists and reports it in the 5th field in the
#     /proc/sys/fs/dentry-state file.  The number, however, does not include
#     negative dentries that are in flight but not in the LRU yet as well as
#     those in the shrinker lists which are on the way out anyway.
#     
#     The number of positive dentries in the LRU lists can be roughly found by
#     subtracting the number of negative dentries from the unused count.
#     
#     Matthew Wilcox had confirmed that since the introduction of the
#     dentry_stat structure in 2.1.60, the dummy array was there, probably for
#     future extension.  They were not replacements of pre-existing fields.
#     So no sane applications that read the value of /proc/sys/fs/dentry-state
#     will do dummy thing if the last 2 fields of the sysctl parameter are not
#     zero.  IOW, it will be safe to use one of the dummy array entry for
#     negative dentry count.
#     
#     Signed-off-by: Waiman Long <longman@redhat.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version
# < git log --format=%s --max-count=1 af0c9af1b3f66052c369d08be3f60fa9a9559e48
# < make -s -j 24 ARCH=mips O=/kisskb/build/linus_malta_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  malta_defconfig
# make -s -j 24 ARCH=mips O=/kisskb/build/linus_malta_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-  
/kisskb/src/arch/mips/vdso/Makefile:38: MIPS VDSO requires binutils >= 2.25
/kisskb/src/arch/mips/vdso/Makefile:38: MIPS VDSO requires binutils >= 2.25
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:152:32: warning: 'levelspread[<Udbe0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<Udbe0>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1855:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:339:21: note: 'pdeo' was declared here
/kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.21':
/kisskb/src/net/bridge/br_netlink.c:652:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' 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:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1846:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1756:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1522:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1479:6: note: 'pwr_level_cisco' was declared here
Completed OK
# rm -rf /kisskb/build/linus_malta_defconfig_mips
# Build took: 0:01:39.248825