Revision af5a30d8cfcfc561336f982b06345d6b815e0bb3 authored by Nick Piggin on 03 June 2010, 12:01:46 UTC, committed by Al Viro on 04 June 2010, 21:16:30 UTC
mtime and ctime should be changed only if the file size has actually
changed. Patches changing ext2 and tmpfs from vmtruncate to new truncate
sequence has caused regressions where they always update timestamps.

There is some strange cases in POSIX where truncate(2) must not update
times unless the size has acutally changed, see 6e656be89.

This area is all still rather buggy in different ways in a lot of
filesystems and needs a cleanup and audit (ideally the vfs will provide
a simple attribute or call to direct all filesystems exactly which
attributes to change). But coming up with the best solution will take a
while and is not appropriate for rc anyway.

So fix recent regression for now.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 parent 8718d36
Raw File
Makefile
#
# Makefile for the Linux filesystems.
#
# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
# Rewritten to use lists instead of if-statements.
# 

obj-y :=	open.o read_write.o file_table.o super.o \
		char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
		ioctl.o readdir.o select.o fifo.o dcache.o inode.o \
		attr.o bad_inode.o file.o filesystems.o namespace.o \
		seq_file.o xattr.o libfs.o fs-writeback.o \
		pnode.o drop_caches.o splice.o sync.o utimes.o \
		stack.o fs_struct.o statfs.o

ifeq ($(CONFIG_BLOCK),y)
obj-y +=	buffer.o bio.o block_dev.o direct-io.o mpage.o ioprio.o
else
obj-y +=	no-block.o
endif

obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o
obj-y				+= notify/
obj-$(CONFIG_EPOLL)		+= eventpoll.o
obj-$(CONFIG_ANON_INODES)	+= anon_inodes.o
obj-$(CONFIG_SIGNALFD)		+= signalfd.o
obj-$(CONFIG_TIMERFD)		+= timerfd.o
obj-$(CONFIG_EVENTFD)		+= eventfd.o
obj-$(CONFIG_AIO)               += aio.o
obj-$(CONFIG_FILE_LOCKING)      += locks.o
obj-$(CONFIG_COMPAT)		+= compat.o compat_ioctl.o

nfsd-$(CONFIG_NFSD)		:= nfsctl.o
obj-y				+= $(nfsd-y) $(nfsd-m)

obj-$(CONFIG_BINFMT_AOUT)	+= binfmt_aout.o
obj-$(CONFIG_BINFMT_EM86)	+= binfmt_em86.o
obj-$(CONFIG_BINFMT_MISC)	+= binfmt_misc.o

# binfmt_script is always there
obj-y				+= binfmt_script.o

obj-$(CONFIG_BINFMT_ELF)	+= binfmt_elf.o
obj-$(CONFIG_COMPAT_BINFMT_ELF)	+= compat_binfmt_elf.o
obj-$(CONFIG_BINFMT_ELF_FDPIC)	+= binfmt_elf_fdpic.o
obj-$(CONFIG_BINFMT_SOM)	+= binfmt_som.o
obj-$(CONFIG_BINFMT_FLAT)	+= binfmt_flat.o

obj-$(CONFIG_FS_MBCACHE)	+= mbcache.o
obj-$(CONFIG_FS_POSIX_ACL)	+= posix_acl.o xattr_acl.o
obj-$(CONFIG_NFS_COMMON)	+= nfs_common/
obj-$(CONFIG_GENERIC_ACL)	+= generic_acl.o

obj-y				+= quota/

obj-$(CONFIG_PROC_FS)		+= proc/
obj-y				+= partitions/
obj-$(CONFIG_SYSFS)		+= sysfs/
obj-$(CONFIG_CONFIGFS_FS)	+= configfs/
obj-y				+= devpts/

obj-$(CONFIG_PROFILING)		+= dcookies.o
obj-$(CONFIG_DLM)		+= dlm/
 
# Do not add any filesystems before this line
obj-$(CONFIG_FSCACHE)		+= fscache/
obj-$(CONFIG_REISERFS_FS)	+= reiserfs/
obj-$(CONFIG_EXT3_FS)		+= ext3/ # Before ext2 so root fs can be ext3
obj-$(CONFIG_EXT2_FS)		+= ext2/
# We place ext4 after ext2 so plain ext2 root fs's are mounted using ext2
# unless explicitly requested by rootfstype
obj-$(CONFIG_EXT4_FS)		+= ext4/
obj-$(CONFIG_JBD)		+= jbd/
obj-$(CONFIG_JBD2)		+= jbd2/
obj-$(CONFIG_CRAMFS)		+= cramfs/
obj-$(CONFIG_SQUASHFS)		+= squashfs/
obj-y				+= ramfs/
obj-$(CONFIG_HUGETLBFS)		+= hugetlbfs/
obj-$(CONFIG_CODA_FS)		+= coda/
obj-$(CONFIG_MINIX_FS)		+= minix/
obj-$(CONFIG_FAT_FS)		+= fat/
obj-$(CONFIG_BFS_FS)		+= bfs/
obj-$(CONFIG_ISO9660_FS)	+= isofs/
obj-$(CONFIG_HFSPLUS_FS)	+= hfsplus/ # Before hfs to find wrapped HFS+
obj-$(CONFIG_HFS_FS)		+= hfs/
obj-$(CONFIG_ECRYPT_FS)		+= ecryptfs/
obj-$(CONFIG_VXFS_FS)		+= freevxfs/
obj-$(CONFIG_NFS_FS)		+= nfs/
obj-$(CONFIG_EXPORTFS)		+= exportfs/
obj-$(CONFIG_NFSD)		+= nfsd/
obj-$(CONFIG_LOCKD)		+= lockd/
obj-$(CONFIG_NLS)		+= nls/
obj-$(CONFIG_SYSV_FS)		+= sysv/
obj-$(CONFIG_SMB_FS)		+= smbfs/
obj-$(CONFIG_CIFS)		+= cifs/
obj-$(CONFIG_NCP_FS)		+= ncpfs/
obj-$(CONFIG_HPFS_FS)		+= hpfs/
obj-$(CONFIG_NTFS_FS)		+= ntfs/
obj-$(CONFIG_UFS_FS)		+= ufs/
obj-$(CONFIG_EFS_FS)		+= efs/
obj-$(CONFIG_JFFS2_FS)		+= jffs2/
obj-$(CONFIG_LOGFS)		+= logfs/
obj-$(CONFIG_UBIFS_FS)		+= ubifs/
obj-$(CONFIG_AFFS_FS)		+= affs/
obj-$(CONFIG_ROMFS_FS)		+= romfs/
obj-$(CONFIG_QNX4FS_FS)		+= qnx4/
obj-$(CONFIG_AUTOFS_FS)		+= autofs/
obj-$(CONFIG_AUTOFS4_FS)	+= autofs4/
obj-$(CONFIG_ADFS_FS)		+= adfs/
obj-$(CONFIG_FUSE_FS)		+= fuse/
obj-$(CONFIG_UDF_FS)		+= udf/
obj-$(CONFIG_SUN_OPENPROMFS)	+= openpromfs/
obj-$(CONFIG_OMFS_FS)		+= omfs/
obj-$(CONFIG_JFS_FS)		+= jfs/
obj-$(CONFIG_XFS_FS)		+= xfs/
obj-$(CONFIG_9P_FS)		+= 9p/
obj-$(CONFIG_AFS_FS)		+= afs/
obj-$(CONFIG_NILFS2_FS)		+= nilfs2/
obj-$(CONFIG_BEFS_FS)		+= befs/
obj-$(CONFIG_HOSTFS)		+= hostfs/
obj-$(CONFIG_HPPFS)		+= hppfs/
obj-$(CONFIG_CACHEFILES)	+= cachefiles/
obj-$(CONFIG_DEBUG_FS)		+= debugfs/
obj-$(CONFIG_OCFS2_FS)		+= ocfs2/
obj-$(CONFIG_BTRFS_FS)		+= btrfs/
obj-$(CONFIG_GFS2_FS)           += gfs2/
obj-$(CONFIG_EXOFS_FS)          += exofs/
obj-$(CONFIG_CEPH_FS)		+= ceph/
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