# 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/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 af0c9af1b3f66052c369d08be3f60fa9a9559e48
# < make -s -j 8 ARCH=arm O=/kisskb/build/linus_shmobile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  shmobile_defconfig
# make -s -j 8 ARCH=arm O=/kisskb/build/linus_shmobile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1263:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1686:59: warning: 'file' 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:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:152:32: warning: 'levelspread[<U20a0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U20a0>]' was declared here
/kisskb/src/sound/core/pcm_iec958.c: In function 'create_iec958_consumer':
/kisskb/src/sound/core/pcm_iec958.c:80:9: warning: 'ws' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv6/ip6_output.c: In function '__ip6_append_data':
/kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv6/ip6_output.c:1270:14: note: 'extra_uref' was declared here
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3405:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c:885:14: note: 'extra_uref' was declared here
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here
/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/drivers/gpio/gpiolib-of.c: In function 'of_gpiochip_add':
/kisskb/src/drivers/gpio/gpiolib-of.c:455:8: warning: 'dflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:441:19: note: 'dflags' was declared here
/kisskb/src/drivers/gpio/gpiolib-of.c:455:8: warning: 'lflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:440:25: note: 'lflags' was declared here
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_sideband_msg_build':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:364:23: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_check_only':
/kisskb/src/drivers/gpu/drm/drm_atomic.c:420:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_atomic.c:399:25: note: 'crtc_state' was declared here
/kisskb/src/drivers/usb/host/xhci-debugfs.c: In function 'xhci_ring_open':
/kisskb/src/drivers/usb/host/xhci-debugfs.c:246:20: warning: 'f_map' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/host/xhci-debugfs.c: In function 'xhci_context_open':
/kisskb/src/drivers/usb/host/xhci-debugfs.c:327:20: warning: 'f_map' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/linus_shmobile_defconfig_arm
# Build took: 0:01:21.885877