Dai Ngo c3b2013544 fs/lock: add 2 callbacks to lock_manager_operations to resolve conflict ... [ Upstream commit 2443da2259 ] Add 2 new callbacks, lm_lock_expirable and lm_expire_lock, to lock_manager_operations to allow the lock manager to take appropriate action to resolve the lock conflict if possible. A new field, lm_mod_owner, is also added to lock_manager_operations. The lm_mod_owner is used by the fs/lock code to make sure the lock manager module such as nfsd, is not freed while lock conflict is being resolved. lm_lock_expirable checks and returns true to indicate that the lock conflict can be resolved else return false. This callback must be called with the flc_lock held so it can not block. lm_expire_lock is called to resolve the lock conflict if the returned value from lm_lock_expirable is true. This callback is called without the flc_lock held since it's allowed to block. Upon returning from this callback, the lock conflict should be resolved and the caller is expected to restart the conflict check from the beginnning of the list. Lock manager, such as NFSv4 courteous server, uses this callback to resolve conflict by destroying lock owner, or the NFSv4 courtesy client (client that has expired but allowed to maintains its states) that owns the lock. Reviewed-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Dai Ngo <dai.ngo@oracle.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>		2024-04-10 16:19:04 +02:00
..
caching	docs: filesystems: Replace HTTP links with HTTPS ones	2020-07-13 09:33:22 -06:00
cifs	ksmbd: update SMB3 multi-channel support in ksmbd.rst	2021-08-13 08:18:15 +09:00
ext4	ext4, doc: fix incorrect h_reserved size	2022-04-27 14:39:01 +02:00
nfs	nfsd: close cached files prior to a REMOVE or RENAME that would replace target	2020-12-09 09:39:38 -05:00
spufs	docs: filesystems: convert spufs/spu_run.txt to ReST	2020-05-05 09:22:24 -06:00
9p.rst	Replace HTTP links with HTTPS ones: 9P FILE SYSTEM	2020-07-13 11:28:12 -06:00
adfs.rst	docs: filesystems: convert adfs.txt to ReST	2020-03-02 13:58:44 -07:00
affs.rst	affs: fix basic permission bits to actually work	2020-08-31 12:20:31 +02:00
afs.rst	AFS: Documentation: fix a few typos in afs.rst	2021-01-21 14:06:00 -07:00
api-summary.rst	block: move fs/block_dev.c to block/bdev.c	2021-09-07 08:39:40 -06:00
autofs-mount-control.rst	autofs: use flexible array in ioctl structure	2023-07-23 13:47:33 +02:00
autofs.rst	autofs: use flexible array in ioctl structure	2023-07-23 13:47:33 +02:00
automount-support.rst	docs: filesystems: convert automount-support.txt to ReST	2020-05-05 09:22:21 -06:00
befs.rst	docs: filesystems: convert befs.txt to ReST	2020-03-02 14:01:25 -07:00
bfs.rst	docs: filesystems: convert bfs.txt to ReST	2020-03-02 14:01:26 -07:00
btrfs.rst	docs: filesystems: convert btrfs.txt to ReST	2020-03-02 14:01:28 -07:00
ceph.rst	libceph, rbd, ceph: "blacklist" -> "blocklist"	2020-10-12 15:29:26 +02:00
coda.rst	Documentation: coda: annotate duplicated words	2020-07-13 10:02:32 -06:00
configfs.rst	Documentation: filesystems: configfs: drop doubled word	2020-07-05 14:44:29 -06:00
cramfs.rst	docs: filesystems: convert cramfs.txt to ReST	2020-03-02 14:02:07 -07:00
dax.rst	docs: convert dax.txt to rst	2021-06-04 11:31:02 -06:00
debugfs.rst	debugfs: remove return value of debugfs_create_bool()	2021-05-21 20:59:03 +02:00
devpts.rst	docs: filesystems: convert devpts.txt to ReST	2020-05-05 09:22:21 -06:00
directory-locking.rst	rename(): fix the locking of subdirectories	2024-02-23 08:54:26 +01:00
dlmfs.rst	ocfs2: replace HTTP links with HTTPS ones	2020-08-07 11:33:22 -07:00
dnotify.rst	docs: filesystems: convert dnotify.txt to ReST	2020-05-05 09:22:22 -06:00
ecryptfs.rst	docs: prevent warnings due to autosectionlabel	2020-03-20 17:01:29 -06:00
efivarfs.rst	docs: filesystems: add info about efivars content	2020-05-25 18:59:59 -06:00
erofs.rst	erofs: introduce chunk-based file on-disk format	2021-08-20 22:38:01 +08:00
ext2.rst	docs: fix a cross-ref	2021-06-13 17:02:46 -06:00
ext3.rst	docs: filesystems: convert ext3.txt to ReST	2020-03-02 14:03:16 -07:00
f2fs.rst	f2fs: support fault injection for dquot_initialize()	2022-06-09 10:23:13 +02:00
fiemap.rst	A lot of bug fixes and cleanups for ext4, including:	2020-06-05 16:19:28 -07:00
files.rst	file: Rename fcheck lookup_fd_rcu	2020-12-10 12:40:07 -06:00
fscrypt.rst	fscrypt: allow 256-bit master keys with AES-256-XTS	2021-11-18 19:16:11 +01:00
fsverity.rst	fs-verity: support reading signature with ioctl	2021-02-07 14:51:19 -08:00
fuse-io.rst	docs: filesystems: convert fuse-io.txt to ReST	2020-05-05 09:22:22 -06:00
fuse.rst	fuse: update project homepage	2020-09-04 11:32:10 +02:00
gfs2-glocks.rst	docs: filesystems: convert gfs2-glocks.txt to ReST	2020-06-02 19:45:05 +02:00
gfs2-uevents.rst	docs: filesystems: convert gfs2-uevents.txt to ReST	2020-03-02 14:03:35 -07:00
gfs2.rst	Documentation: Update filesystems/gfs2.rst	2020-12-01 00:25:20 +01:00
hfs.rst	Replace HTTP links with HTTPS ones: Documentation/filesystems	2020-06-26 11:14:12 -06:00
hfsplus.rst	docs: filesystems: convert hfsplus.txt to ReST	2020-03-02 14:03:47 -07:00
hpfs.rst	Replace HTTP links with HTTPS ones: Documentation/filesystems	2020-06-26 11:14:12 -06:00
idmappings.rst	docs: update mapping documentation	2022-07-02 16:41:15 +02:00
index.rst	Merge git://github.com/Paragon-Software-Group/linux-ntfs3	2021-09-04 11:15:50 -07:00
inotify.rst	docs: filesystems: convert inotify.txt to ReST	2020-03-02 14:03:55 -07:00
isofs.rst	docs: filesystems: convert isofs.txt to ReST	2020-03-02 14:04:06 -07:00
journalling.rst	jbd2: drop jbd2_fc_init documentation	2020-11-06 23:01:03 -05:00
locking.rst	fs/lock: add 2 callbacks to lock_manager_operations to resolve conflict	2024-04-10 16:19:04 +02:00
locks.rst	docs: filesystems: convert mandatory-locking.txt to ReST	2020-05-05 09:22:22 -06:00
mount_api.rst	Documentation: mount_api: change kernel log wording	2020-12-03 15:53:13 -07:00
netfs_library.rst	netfs: Documentation for helper library	2021-04-23 10:14:32 +01:00
nilfs2.rst	docs: filesystems: convert nilfs2.txt to ReST	2020-03-02 14:04:06 -07:00
ntfs3.rst	Doc/fs/ntfs3: Fix rst format and make it cleaner	2021-09-20 18:53:12 +03:00
ntfs.rst	docs: filesystems: convert ntfs.txt to ReST	2020-03-02 14:04:06 -07:00
ocfs2-online-filecheck.rst	docs: filesystems: convert ocfs2-online-filecheck.txt to ReST	2020-03-02 14:04:06 -07:00
ocfs2.rst	ocfs2: replace HTTP links with HTTPS ones	2020-08-07 11:33:22 -07:00
omfs.rst	Replace HTTP links with HTTPS ones: OMFS	2020-07-13 11:24:43 -06:00
orangefs.rst	docs: orangefs: fix pvfs2tab literal block	2020-04-28 12:35:47 -06:00
overlayfs.rst	ovl: skip checking lower file's i_writecount on truncate	2021-08-17 11:47:44 +02:00
path-lookup.rst	Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:41:14 -07:00
path-lookup.txt	Replace HTTP links with HTTPS ones: documentation	2020-06-08 09:30:19 -06:00
porting.rst	rename(): fix the locking of subdirectories	2024-02-23 08:54:26 +01:00
proc.rst	procfs/dmabuf: add inode number to /proc/*/fdinfo	2021-07-01 11:06:04 -07:00
qnx6.rst	docs: filesystems: fix typo in qnx6.rst	2020-04-07 13:20:56 -06:00
quota.rst	quota: Fixup http links in quota doc	2020-07-09 08:14:01 +02:00
ramfs-rootfs-initramfs.rst	Documentation: Fix intiramfs script name	2021-07-18 23:48:14 +09:00
relay.rst	docs: filesystems: convert relay.txt to ReST	2020-03-02 14:04:41 -07:00
romfs.rst	docs: filesystems: convert romfs.txt to ReST	2020-03-02 14:04:41 -07:00
seq_file.rst	seq_file: document how per-entry resources are managed.	2021-02-26 09:41:05 -08:00
sharedsubtree.rst	docs: filesystems: convert sharedsubtree.txt to ReST	2020-05-05 09:22:23 -06:00
splice.rst	docs: Bring some order to filesystem documentation	2019-03-06 09:46:10 -07:00
squashfs.rst	docs: filesystems: convert squashfs.txt to ReST	2020-03-02 14:04:41 -07:00
sysfs.rst	Driver Core patches for 5.10-rc1	2020-10-14 16:09:32 -07:00
sysv-fs.rst	docs: filesystems: convert sysv-fs.txt to ReST	2020-03-02 14:04:41 -07:00
tmpfs.rst	tmpfs: fix Documentation nits	2020-12-15 12:13:39 -08:00
ubifs-authentication.rst	docs: ubifs-authentication: Add a top-level heading	2020-09-09 11:53:33 -06:00
ubifs.rst	docs: filesystems: convert ubifs.txt to ReST	2020-03-02 14:04:41 -07:00
udf.rst	udf: Replace HTTP links with HTTPS ones	2020-07-14 14:37:39 +02:00
vfat.rst	docs: filesystems: Fix a mundane typo	2021-03-25 11:51:23 -06:00
vfs.rst	docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate	2023-03-22 13:31:22 +01:00
virtiofs.rst	virtiofs: Add mount option and atime behavior to the doc	2020-04-20 17:01:34 +02:00
xfs-delayed-logging-design.rst	docs: filesystems: convert xfs-delayed-logging-design.txt to ReST	2020-05-05 09:22:24 -06:00
xfs-self-describing-metadata.rst	New code for 5.8:	2020-06-02 19:21:40 -07:00
zonefs.rst	zonefs: document the explicit-open mount option	2020-09-15 18:32:58 +09:00