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The allocation trees and the chunk trees are serialized via their own dedicated mutexes. This means allocation location is still not very fine grained. The main FS btree is protected by locks on each block in the btree. Locks are taken top / down, and as processing finishes on a given level of the tree, the lock is released after locking the lower level. The end result of a search is now a path where only the lowest level is locked. Releasing or freeing the path drops any locks held. Signed-off-by: Chris Mason <chris.mason@oracle.com>
27 lines
872 B
Makefile
27 lines
872 B
Makefile
ifneq ($(KERNELRELEASE),)
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# kbuild part of makefile
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obj-m := btrfs.o
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btrfs-y := super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
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hash.o file-item.o inode-item.o inode-map.o disk-io.o \
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transaction.o bit-radix.o inode.o file.o tree-defrag.o \
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extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \
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extent_io.o volumes.o async-thread.o ioctl.o locking.o
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btrfs-$(CONFIG_FS_POSIX_ACL) += acl.o
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else
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# Normal Makefile
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KERNELDIR := /lib/modules/`uname -r`/build
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all:
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$(MAKE) -C $(KERNELDIR) M=`pwd` modules
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modules_install:
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$(MAKE) -C $(KERNELDIR) M=`pwd` modules_install
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clean:
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$(MAKE) -C $(KERNELDIR) M=`pwd` clean
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tester:
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$(MAKE) -C $(KERNELDIR) M=`pwd` tree-defrag.o transaction.o sysfs.o super.o root-tree.o inode-map.o inode-item.o inode.o file-item.o file.o extent_map.o disk-io.o ctree.o dir-item.o extent-tree.o
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endif
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