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| author | kay.sievers@vrfy.org <kay.sievers@vrfy.org> | 2004-11-06 14:28:01 +0100 |
|---|---|---|
| committer | Greg KH <gregkh@suse.de> | 2005-04-26 22:16:40 -0700 |
| commit | 2b41e68a08548ce44b4d145900dab2bb04cd34f7 (patch) | |
| tree | f2e96c9f150775e3673891d38a5af23d4246c826 /Makefile | |
| parent | 482b0ecd8fcc2651c003c6f1ae9a2d3301ecf34a (diff) | |
| download | udev-2b41e68a08548ce44b4d145900dab2bb04cd34f7.tar.gz | |
[PATCH] replace tdb database by simple lockless file database
This makes the udev operation completely lockless by storing a
file for every node in /dev/.udevdb/* This solved the problem
with deadlocking concurrent udev processes waiting for each other
to release the file lock under heavy load.
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 29 |
1 files changed, 11 insertions, 18 deletions
@@ -68,7 +68,8 @@ INSTALL_SCRIPT = ${INSTALL_PROGRAM} EXTRAS= # place to put our device nodes -udevdir = ${prefix}/udev +udevdir = ${prefix}/udev +udevdb = ${udevdir}/.udevdb # Comment out this line to build with something other # than the local version of klibc @@ -113,11 +114,6 @@ WARNINGS := -Wall CFLAGS := -pipe -# set up the proper tdb spinlock code if we can -ifeq ($(strip $(ARCH)),i386) - CFLAGS += -DUSE_SPINLOCKS -DINTEL_SPINLOCKS -endif - ifeq ($(strip $(USE_LOG)),true) CFLAGS += -DLOG endif @@ -201,9 +197,6 @@ $(CRT0): fi $(MAKE) -C klibc SUBDIRS=klibc -TDB = tdb/tdb.o \ - tdb/spinlock.o - SYSFS = $(PWD)/libsysfs/sysfs_bus.o \ $(PWD)/libsysfs/sysfs_class.o \ $(PWD)/libsysfs/sysfs_device.o \ @@ -221,8 +214,7 @@ OBJS = udev_lib.o \ namedev.o \ namedev_parse.o \ dev_d.o \ - $(SYSFS) \ - $(TDB) + $(SYSFS) HEADERS = udev.h \ udev_lib.h \ @@ -262,8 +254,8 @@ ccdv: udev_version.h: @echo "Creating udev_version.h" @echo \#define UDEV_VERSION \"$(VERSION)\" > $@ - @echo \#define UDEV_ROOT \"$(udevdir)/\" >> $@ - @echo \#define UDEV_DB \"$(udevdir)/.udev.tdb\" >> $@ + @echo \#define UDEV_ROOT \"$(udevdir)\" >> $@ + @echo \#define UDEV_DB \"$(udevdb)\" >> $@ @echo \#define UDEV_CONFIG_DIR \"$(configdir)\" >> $@ @echo \#define UDEV_CONFIG_FILE \"$(configdir)/udev.conf\" >> $@ @echo \#define UDEV_RULES_FILE \"$(configdir)/rules.d\" >> $@ @@ -300,7 +292,7 @@ $(TESTER): $(LIBC) $(TESTER).o $(OBJS) $(HEADERS) $(QUIET) $(STRIPCMD) $@ $(INFO): $(LIBC) $(INFO).o $(OBJS) $(HEADERS) - $(QUIET) $(LD) $(LDFLAGS) -o $@ $(CRT0) udevinfo.o udev_lib.o udev_config.o udevdb.o $(SYSFS) $(TDB) $(LIB_OBJS) $(ARCH_LIB_OBJS) + $(QUIET) $(LD) $(LDFLAGS) -o $@ $(CRT0) udevinfo.o udev_lib.o udev_config.o udevdb.o $(SYSFS) $(LIB_OBJS) $(ARCH_LIB_OBJS) $(QUIET) $(STRIPCMD) $@ $(DAEMON): $(LIBC) $(DAEMON).o $(OBJS) udevd.h @@ -337,7 +329,7 @@ spotless: clean $(MAKE) -C klibc spotless -rm -f klibc/linux -DISTFILES = $(shell find . \( -not -name '.' \) -print | grep -v -e CVS -e "\.tar\.gz$" -e "\/\." -e releases -e BitKeeper -e SCCS -e "\.tdb$" -e test/sys | sort ) +DISTFILES = $(shell find . \( -not -name '.' \) -print | grep -v -e CVS -e "\.tar\.gz" -e "\/\." -e releases -e BitKeeper -e SCCS -e test/sys | sort ) DISTDIR := $(RELEASE_NAME) srcdir = . release: clean @@ -429,8 +421,8 @@ install: install-initscript install-config install-man install-dev.d all - ln -f -s $(sbindir)/$(SENDER) $(DESTDIR)$(hotplugdir)/10-udev.hotplug - ln -f -s $(sbindir)/$(WAIT) $(DESTDIR)$(hotplugdir)/05-wait_for_sysfs.hotplug ifndef DESTDIR - - killall udevd - - rm -f $(udevdir)/.udev.tdb + - killall $(DAEMON) + - rm -rf $(udevdb) endif @extras="$(EXTRAS)" ; for target in $$extras ; do \ echo $$target ; \ @@ -456,8 +448,9 @@ uninstall: uninstall-man uninstall-dev.d - rm $(usrbindir)/$(TESTER) - rm $(usrbindir)/$(WAIT) - rmdir $(hotplugdir) - - rm $(udevdir)/.udev.tdb + - rm -rf $(udevdb) - rmdir $(udevdir) + - killall $(DAEMON) @extras="$(EXTRAS)" ; for target in $$extras ; do \ echo $$target ; \ $(MAKE) prefix=$(prefix) LD="$(LD)" SYSFS="$(SYSFS)" \ |