linux/fs
J. Bruce Fields af558e33be nfsd: common grace period control
Rewrite grace period code to unify management of grace period across
lockd and nfsd.  The current code has lockd and nfsd cooperate to
compute a grace period which is satisfactory to them both, and then
individually enforce it.  This creates a slight race condition, since
the enforcement is not coordinated.  It's also more complicated than
necessary.

Here instead we have lockd and nfsd each inform common code when they
enter the grace period, and when they're ready to leave the grace
period, and allow normal locking only after both of them are ready to
leave.

We also expect the locks_start_grace()/locks_end_grace() interface here
to be simpler to build on for future cluster/high-availability work,
which may require (for example) putting individual filesystems into
grace, or enforcing grace periods across multiple cluster nodes.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2008-10-03 16:19:02 -04:00
..
9p
adfs
affs
afs
autofs
autofs4
befs
bfs
cifs
coda
configfs
cramfs
debugfs
devpts
dlm
ecryptfs
efs
exportfs
ext2
ext3
ext4
fat
freevxfs
fuse
gfs2
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs
isofs
jbd
jbd2
jffs2
jfs
lockd nfsd: common grace period control 2008-10-03 16:19:02 -04:00
minix
msdos
ncpfs
nfs
nfs_common
nfsd nfsd: common grace period control 2008-10-03 16:19:02 -04:00
nls
ntfs
ocfs2
omfs
openpromfs
partitions
proc
qnx4
ramfs
reiserfs
romfs
smbfs
sysfs
sysv
ubifs
udf
ufs
vfat
xfs
aio.c
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf_fdpic.c
binfmt_elf.c
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
binfmt_som.c
bio-integrity.c
bio.c
block_dev.c
buffer.c
char_dev.c
compat_binfmt_elf.c
compat_ioctl.c
compat.c
dcache.c
dcookies.c
direct-io.c
dnotify.c
dquot.c
drop_caches.c
eventfd.c
eventpoll.c
exec.c
fcntl.c
fifo.c
file_table.c
file.c
filesystems.c
fs-writeback.c
generic_acl.c
inode.c
inotify_user.c
inotify.c
internal.h
ioctl.c
ioprio.c
Kconfig
Kconfig.binfmt
libfs.c
locks.c
Makefile
mbcache.c
mpage.c
namei.c
namespace.c
nfsctl.c
no-block.c
open.c
pipe.c
pnode.c
pnode.h
posix_acl.c
quota_v1.c
quota_v2.c
quota.c
read_write.c
read_write.h
readdir.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
super.c
sync.c
timerfd.c
utimes.c
xattr_acl.c
xattr.c