linux/fs
David Howells f94f70d39c afs: Provide a way to configure address priorities
AFS servers may have multiple addresses, but the client can't easily judge
between them as to which one is best.  For instance, an address that has a
larger RTT might actually have a better bandwidth because it goes through a
switch rather than being directly connected - but we can't work this out
dynamically unless we push through sufficient data that we can measure it.

To allow the administrator to configure this, add a list of preference
weightings for server addresses by IPv4/IPv6 address or subnet and allow
this to be viewed through a procfile and altered by writing text commands
to that same file.  Preference rules can be added/updated by:

	echo "add <proto> <addr>[/<subnet>] <prior>" >/proc/fs/afs/addr_prefs
	echo "add udp 1.2.3.4 1000" >/proc/fs/afs/addr_prefs
	echo "add udp 192.168.0.0/16 3000" >/proc/fs/afs/addr_prefs
	echo "add udp 1001:2002:0:6::/64 4000" >/proc/fs/afs/addr_prefs

and removed by:

	echo "del <proto> <addr>[/<subnet>]" >/proc/fs/afs/addr_prefs
	echo "del udp 1.2.3.4" >/proc/fs/afs/addr_prefs

where the priority is a number between 0 and 65535.

The list is split between IPv4 and IPv6 addresses and each sublist is kept
in numerical order, with rules that would otherwise match but have
different subnet masking being ordered with the most specific submatch
first.

A subsequent patch will apply these rules.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
2024-01-01 16:37:26 +00:00
..
9p Bunch of small fixes: 2023-11-04 09:20:04 -10:00
adfs adfs: convert to new timestamp accessors 2023-10-18 13:26:18 +02:00
affs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
afs afs: Provide a way to configure address priorities 2024-01-01 16:37:26 +00:00
autofs autofs: add: new_inode check in autofs_fill_super() 2023-11-20 14:56:36 +01:00
bcachefs bcachefs: Fix bch2_alloc_sectors_start_trans() error handling 2023-12-19 19:01:52 -05:00
befs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
bfs bfs: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
btrfs for-6.7-rc5-tag 2023-12-17 09:27:36 -08:00
cachefiles - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
ceph Two items: 2023-11-10 09:52:56 -08:00
coda coda: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
configfs configfs: convert to new timestamp accessors 2023-10-18 13:26:19 +02:00
cramfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
crypto This update includes the following changes: 2023-11-02 16:15:30 -10:00
debugfs debugfs: initialize cancellations earlier 2023-12-22 07:33:02 +01:00
devpts devpts: convert to new timestamp accessors 2023-10-18 13:26:20 +02:00
dlm dlm: slow down filling up processing queue 2023-10-12 15:21:00 -05:00
ecryptfs fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-11-18 14:54:07 +01:00
efivarfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
efs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
erofs MAINTAINERS: erofs: add EROFS webpage 2023-11-17 19:55:46 +08:00
exfat exfat: fix ctime is not updated 2023-11-03 22:24:11 +09:00
exportfs fs: fix build error with CONFIG_EXPORTFS=m or not defined 2023-10-28 16:16:19 +02:00
ext2 ext2: Fix ki_pos update for DIO buffered-io fallback case 2023-11-22 10:17:10 +01:00
ext4 ext4: fix warning in ext4_dio_write_end_io() 2023-11-30 23:29:34 -05:00
f2fs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
fat vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
freevxfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
fscache
fuse fuse: disable FOPEN_PARALLEL_DIRECT_WRITES with FUSE_DIRECT_IO_ALLOW_MMAP 2023-12-04 10:19:32 +01:00
gfs2 gfs2 fixes 2023-11-07 11:54:17 -08:00
hfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
hfsplus vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
hostfs hostfs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
hpfs hpfs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
hugetlbfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
iomap Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
isofs isofs: convert to new timestamp accessors 2023-10-18 14:08:22 +02:00
jbd2 jbd2: fix soft lockup in journal_finish_inode_data_buffers() 2023-12-12 10:25:46 -05:00
jffs2 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
jfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
kernfs Driver core changes for 6.7-rc1 2023-11-03 15:15:47 -10:00
lockd SUNRPC: change how svc threads are asked to exit. 2023-10-16 12:44:04 -04:00
minix minix: convert to new timestamp accessors 2023-10-18 14:08:23 +02:00
netfs netfs: Only call folio_start_fscache() one time for each folio 2023-09-18 12:03:46 -07:00
nfs NFS client updates for Linux 6.7 2023-11-08 13:39:16 -08:00
nfs_common
nfsd nfsd-6.7 fixes: 2023-12-20 11:16:50 -08:00
nilfs2 nilfs2: prevent WARNING in nilfs_sufile_set_segment_usage() 2023-12-06 16:12:50 -08:00
nls nls: Hide new NLS_UCS2_UTILS 2023-08-31 12:07:34 -05:00
notify vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ntfs vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ntfs3 vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
ocfs2 As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
omfs omfs: convert to new timestamp accessors 2023-10-18 14:08:25 +02:00
openpromfs openpromfs: convert to new timestamp accessors 2023-10-18 14:08:25 +02:00
orangefs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
overlayfs overlayfs fixes for 6.7-rc7 2023-12-20 12:04:03 -08:00
proc mm/pagemap: fix wr-protect even if PM_SCAN_WP_MATCHING not set 2023-12-06 16:12:45 -08:00
pstore pstore updates for v6.7-rc1 2023-10-30 19:26:39 -10:00
qnx4 qnx4: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
qnx6 qnx6: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
quota Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
ramfs ramfs: convert to new timestamp accessors 2023-10-18 14:08:26 +02:00
reiserfs Many singleton patches against the MM code. The patch series which are 2023-11-02 19:38:47 -10:00
romfs vfs-6.7.ctime 2023-10-30 09:47:13 -10:00
smb cifs: do not let cifs_chan_update_iface deallocate channels 2023-12-19 11:04:04 -06:00
squashfs squashfs: squashfs_read_data need to check if the length is 0 2023-12-06 16:12:45 -08:00
sysfs kernfs: sysfs: support custom llseek method for sysfs entries 2023-10-05 13:42:11 +02:00
sysv sysv: convert to new timestamp accessors 2023-10-18 14:08:28 +02:00
tracefs eventfs: Have event files and directories default to parent uid and gid 2023-12-21 09:58:02 -05:00
ubifs This pull request contains updates for UBI and UBIFS 2023-11-05 08:28:32 -10:00
udf \n 2023-11-02 08:19:51 -10:00
ufs fix ufs_get_locked_folio() breakage 2023-12-13 11:14:09 -05:00
unicode
vboxsf vboxsf: convert to new timestamp accessors 2023-10-18 14:08:29 +02:00
verity fsverity: skip PKCS#7 parser when keyring is empty 2023-08-20 10:33:43 -07:00
xfs Code changes for 6.7-rc2: 2023-11-25 08:57:09 -08:00
zonefs zonefs: convert to new timestamp accessors 2023-10-18 14:08:29 +02:00
aio.c aio: Annotate struct kioctx_table with __counted_by 2023-09-20 14:22:01 +02:00
anon_inodes.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
attr.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
bad_inode.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
binfmt_elf_fdpic.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_elf_test.c
binfmt_elf.c binfmt_elf: Only report padzero() errors when PROT_WRITE 2023-10-03 19:48:44 -07:00
binfmt_flat.c
binfmt_misc.c execve updates for v6.7-rc1 2023-10-30 19:28:19 -10:00
binfmt_script.c
buffer.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
char_dev.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
compat_binfmt_elf.c
coredump.c v6.5/vfs.misc 2023-06-26 09:50:21 -07:00
d_path.c
dax.c mm: convert DAX lock/unlock page to lock/unlock folio 2023-10-04 10:32:20 -07:00
dcache.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
direct-io.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
drop_caches.c fs: drop_caches: draining pages before dropping caches 2023-08-18 10:12:11 -07:00
eventfd.c eventfd: prevent underflow for eventfd semaphores 2023-07-11 11:41:34 +02:00
eventpoll.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
exec.c mm/mremap: allow moves within the same VMA for stack moves 2023-10-04 10:32:20 -07:00
fcntl.c treewide: mark stuff as __ro_after_init 2023-10-18 14:43:23 -07:00
fhandle.c exportfs: add helpers to check if filesystem can encode/decode file handles 2023-10-24 17:57:45 +02:00
file_table.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
file.c file, i915: fix file reference for mmap_singleton() 2023-10-25 22:17:04 +02:00
filesystems.c
fs_context.c fs: factor out vfs_parse_monolithic_sep() helper 2023-10-12 18:53:36 +03:00
fs_parser.c
fs_pin.c
fs_struct.c kill do_each_thread() 2023-08-21 13:46:25 -07:00
fs_types.c
fs-writeback.c vfs-6.7.misc 2023-10-30 09:14:19 -10:00
fsopen.c fsconfig: ensure that dirfd is set to aux 2023-09-22 14:09:06 +02:00
init.c fs: add a new SB_I_NOUMASK flag 2023-10-19 11:02:47 +02:00
inode.c filemap: add a per-mapping stable writes flag 2023-11-20 15:05:18 +01:00
internal.h fs: store real path instead of fake path in backing file f_path 2023-10-19 11:03:15 +02:00
ioctl.c v6.6-vfs.super 2023-08-28 11:04:18 -07:00
Kconfig mm/hugetlb: have CONFIG_HUGETLB_PAGE select CONFIG_XARRAY_MULTI 2023-12-06 16:12:49 -08:00
Kconfig.binfmt riscv: support the elf-fdpic binfmt loader 2023-08-23 14:17:43 -07:00
kernel_read_file.c fs: Fix kernel-doc warnings 2023-08-19 12:12:12 +02:00
libfs.c libfs: getdents() should return 0 after reaching EOD 2023-11-20 15:34:22 +01:00
locks.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
Makefile bcachefs: Initial commit 2023-10-22 17:08:07 -04:00
mbcache.c mbcache: dynamically allocate the mbcache shrinker 2023-10-04 10:32:25 -07:00
mnt_idmapping.c fs: export mnt_idmap_get/mnt_idmap_put 2023-11-03 23:28:33 +01:00
mount.h
mpage.c buffer: remove folio_create_empty_buffers() 2023-10-25 16:47:10 -07:00
namei.c vfs-6.7.misc 2023-10-30 09:14:19 -10:00
namespace.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
nsfs.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
open.c cred: get rid of CONFIG_DEBUG_CREDENTIALS 2023-12-15 14:19:48 -08:00
pipe.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
pnode.c
pnode.h
posix_acl.c fs: convert to ctime accessor functions 2023-07-13 10:28:04 +02:00
proc_namespace.c tty, proc, kernfs, random: Use copy_splice_read() 2023-05-24 08:42:16 -06:00
read_write.c fs: Fix one kernel-doc comment 2023-08-15 08:32:45 +02:00
readdir.c vfs: get rid of old '->iterate' directory operation 2023-08-06 15:08:35 +02:00
remap_range.c fs: use UB-safe check for signed addition overflow in remap_verify_area 2023-05-24 11:03:59 +02:00
select.c
seq_file.c
signalfd.c
splice.c - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
stack.c fs: convert core infrastructure to new timestamp accessors 2023-10-18 13:26:15 +02:00
stat.c fs: Pass AT_GETATTR_NOSEC flag to getattr interface function 2023-11-18 14:54:07 +01:00
statfs.c
super.c overlayfs update for 6.7-rc1 2023-11-07 11:46:31 -08:00
sync.c
sysctls.c sysctl: Refactor base paths registrations 2023-05-23 21:43:26 -07:00
timerfd.c
userfaultfd.c As usual, lots of singleton and doubleton patches all over the tree and 2023-11-02 20:53:31 -10:00
utimes.c
xattr.c xattr: make the xattr array itself const 2023-10-09 16:24:16 +02:00