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f79e2abb9b
Remove the recently-added LINUX_FADV_ASYNC_WRITE and LINUX_FADV_WRITE_WAIT fadvise() additions, do it in a new sys_sync_file_range() syscall instead. Reasons: - It's more flexible. Things which would require two or three syscalls with fadvise() can be done in a single syscall. - Using fadvise() in this manner is something not covered by POSIX. The patch wires up the syscall for x86. The sycall is implemented in the new fs/sync.c. The intention is that we can move sys_fsync(), sys_fdatasync() and perhaps sys_sync() into there later. Documentation for the syscall is in fs/sync.c. A test app (sync_file_range.c) is in http://www.zip.com.au/~akpm/linux/patches/stuff/ext3-tools.tar.gz. The available-to-GPL-modules do_sync_file_range() is for knfsd: "A COMMIT can say NFS_DATA_SYNC or NFS_FILE_SYNC. I can skip the ->fsync call for NFS_DATA_SYNC which is hopefully the more common." Note: the `async' writeout mode SYNC_FILE_RANGE_WRITE will turn synchronous if the queue is congested. This is trivial to fix: add a new flag bit, set wbc->nonblocking. But I'm not sure that we want to expose implementation details down to that level. Note: it's notable that we can sync an fd which wasn't opened for writing. Same with fsync() and fdatasync()). Note: the code takes some care to handle attempts to sync file contents outside the 16TB offset on 32-bit machines. It makes such attempts appear to succeed, for best 32-bit/64-bit compatibility. Perhaps it should make such requests fail... Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Ulrich Drepper <drepper@redhat.com> Cc: Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
105 lines
3.3 KiB
Makefile
105 lines
3.3 KiB
Makefile
#
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# Makefile for the Linux filesystems.
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#
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# 14 Sep 2000, Christoph Hellwig <hch@infradead.org>
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# Rewritten to use lists instead of if-statements.
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#
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obj-y := open.o read_write.o file_table.o buffer.o bio.o super.o \
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block_dev.o char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
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ioctl.o readdir.o select.o fifo.o locks.o dcache.o inode.o \
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attr.o bad_inode.o file.o filesystems.o namespace.o aio.o \
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seq_file.o xattr.o libfs.o fs-writeback.o mpage.o direct-io.o \
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ioprio.o pnode.o drop_caches.o splice.o sync.o
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obj-$(CONFIG_INOTIFY) += inotify.o
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obj-$(CONFIG_EPOLL) += eventpoll.o
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obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
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nfsd-$(CONFIG_NFSD) := nfsctl.o
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obj-y += $(nfsd-y) $(nfsd-m)
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obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
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obj-$(CONFIG_BINFMT_EM86) += binfmt_em86.o
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obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
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# binfmt_script is always there
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obj-y += binfmt_script.o
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obj-$(CONFIG_BINFMT_ELF) += binfmt_elf.o
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obj-$(CONFIG_BINFMT_ELF_FDPIC) += binfmt_elf_fdpic.o
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obj-$(CONFIG_BINFMT_SOM) += binfmt_som.o
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obj-$(CONFIG_BINFMT_FLAT) += binfmt_flat.o
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obj-$(CONFIG_FS_MBCACHE) += mbcache.o
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obj-$(CONFIG_FS_POSIX_ACL) += posix_acl.o xattr_acl.o
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obj-$(CONFIG_NFS_COMMON) += nfs_common/
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obj-$(CONFIG_QUOTA) += dquot.o
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obj-$(CONFIG_QFMT_V1) += quota_v1.o
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obj-$(CONFIG_QFMT_V2) += quota_v2.o
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obj-$(CONFIG_QUOTACTL) += quota.o
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obj-$(CONFIG_DNOTIFY) += dnotify.o
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obj-$(CONFIG_PROC_FS) += proc/
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obj-y += partitions/
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obj-$(CONFIG_SYSFS) += sysfs/
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obj-y += devpts/
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obj-$(CONFIG_PROFILING) += dcookies.o
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# Do not add any filesystems before this line
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obj-$(CONFIG_REISERFS_FS) += reiserfs/
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obj-$(CONFIG_EXT3_FS) += ext3/ # Before ext2 so root fs can be ext3
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obj-$(CONFIG_JBD) += jbd/
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obj-$(CONFIG_EXT2_FS) += ext2/
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obj-$(CONFIG_CRAMFS) += cramfs/
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obj-$(CONFIG_RAMFS) += ramfs/
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obj-$(CONFIG_HUGETLBFS) += hugetlbfs/
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obj-$(CONFIG_CODA_FS) += coda/
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obj-$(CONFIG_MINIX_FS) += minix/
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obj-$(CONFIG_FAT_FS) += fat/
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obj-$(CONFIG_MSDOS_FS) += msdos/
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obj-$(CONFIG_VFAT_FS) += vfat/
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obj-$(CONFIG_BFS_FS) += bfs/
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obj-$(CONFIG_ISO9660_FS) += isofs/
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obj-$(CONFIG_DEVFS_FS) += devfs/
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obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+
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obj-$(CONFIG_HFS_FS) += hfs/
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obj-$(CONFIG_VXFS_FS) += freevxfs/
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obj-$(CONFIG_NFS_FS) += nfs/
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obj-$(CONFIG_EXPORTFS) += exportfs/
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obj-$(CONFIG_NFSD) += nfsd/
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obj-$(CONFIG_LOCKD) += lockd/
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obj-$(CONFIG_NLS) += nls/
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obj-$(CONFIG_SYSV_FS) += sysv/
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obj-$(CONFIG_SMB_FS) += smbfs/
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obj-$(CONFIG_CIFS) += cifs/
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obj-$(CONFIG_NCP_FS) += ncpfs/
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obj-$(CONFIG_HPFS_FS) += hpfs/
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obj-$(CONFIG_NTFS_FS) += ntfs/
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obj-$(CONFIG_UFS_FS) += ufs/
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obj-$(CONFIG_EFS_FS) += efs/
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obj-$(CONFIG_JFFS_FS) += jffs/
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obj-$(CONFIG_JFFS2_FS) += jffs2/
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obj-$(CONFIG_AFFS_FS) += affs/
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obj-$(CONFIG_ROMFS_FS) += romfs/
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obj-$(CONFIG_QNX4FS_FS) += qnx4/
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obj-$(CONFIG_AUTOFS_FS) += autofs/
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obj-$(CONFIG_AUTOFS4_FS) += autofs4/
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obj-$(CONFIG_ADFS_FS) += adfs/
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obj-$(CONFIG_FUSE_FS) += fuse/
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obj-$(CONFIG_UDF_FS) += udf/
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obj-$(CONFIG_SUN_OPENPROMFS) += openpromfs/
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obj-$(CONFIG_JFS_FS) += jfs/
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obj-$(CONFIG_XFS_FS) += xfs/
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obj-$(CONFIG_9P_FS) += 9p/
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obj-$(CONFIG_AFS_FS) += afs/
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obj-$(CONFIG_BEFS_FS) += befs/
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obj-$(CONFIG_HOSTFS) += hostfs/
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obj-$(CONFIG_HPPFS) += hppfs/
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obj-$(CONFIG_DEBUG_FS) += debugfs/
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obj-$(CONFIG_CONFIGFS_FS) += configfs/
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obj-$(CONFIG_OCFS2_FS) += ocfs2/
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