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76246c9219
kernel_optimize_test/fs/nfs
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Ahmed S. Darwish 76246c9219 NFSv4: Use sequence counter with associated spinlock 
A sequence counter write side critical section must be protected by some
form of locking to serialize writers. A plain seqcount_t does not
contain the information of which lock must be held when entering a write
side critical section.

Use the new seqcount_spinlock_t data type, which allows to associate a
spinlock with the sequence counter. This enables lockdep to verify that
the spinlock used for writer serialization is held when the write side
critical section is entered.

If lockdep is disabled this lock association is compiled out and has
neither storage size nor runtime overhead.

Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200720155530.1173732-22-a.darwish@linutronix.de
2020-07-29 16:14:28 +02:00
..
blocklayout mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
filelayout NFS/pNFS: Clean up pNFS commit operations 2020-03-27 16:34:35 -04:00
flexfilelayout pNFS/flexfiles: Fix list corruption if the mirror count changes 2020-06-26 08:43:14 -04:00
cache_lib.c
cache_lib.h
callback_proc.c NFSv4: Add support for CB_RECALL_ANY for flexfiles layouts 2020-03-16 08:34:30 -04:00
callback_xdr.c NFS4: Report callback authentication errors 2020-01-15 10:54:31 -05:00
callback.c SUNRPC: Cache the process user cred in the RPC server listener 2019-04-24 09:46:35 -04:00
callback.h NFSv4: Add support for CB_RECALL_ANY for flexfiles layouts 2020-03-16 08:34:30 -04:00
client.c nfs: add minor version to nfs_server_key for fscache 2020-02-25 13:53:24 -05:00
delegation.c NFS: Beware when dereferencing the delegation cred 2020-04-03 18:26:02 -04:00
delegation.h NFSv4: Ensure the delegation is pinned in nfs_do_return_delegation() 2020-02-13 16:18:50 -05:00
dir.c NFS client updates for Linux 5.7 2020-04-07 13:51:39 -07:00
direct.c SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion") 2020-07-17 14:47:38 -04:00
dns_resolve.c NFS: remove duplicate headers 2020-05-27 10:10:12 -04:00
dns_resolve.h
export.c NFS: Add a tracepoint in nfs_fh_to_dentry() 2019-11-03 21:28:46 -05:00
file.c SUNRPC reverting d03727b248 ("NFSv4 fix CLOSE not waiting for direct IO compeletion") 2020-07-17 14:47:38 -04:00
fs_context.c NFS: Fix a few constant_table array definitions 2020-04-02 18:37:13 -04:00
fscache-index.c nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
fscache.c NFSv4: Fix fscache cookie aux_data to ensure change_attr is included 2020-05-08 22:20:24 +01:00
fscache.h nfs: fscache: use timespec64 in inode auxdata 2020-01-15 10:54:30 -05:00
getroot.c NFS: Ensure security label is set for root inode 2020-03-30 19:56:50 -04:00
inode.c nfs: set invalid blocks after NFSv4 writes 2020-06-11 13:33:48 -04:00
internal.h mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead 2020-06-02 10:59:08 -07:00
io.c NFS: Fix up documentation warnings 2019-02-20 15:14:21 -05:00
iostat.h
Kconfig Documentation: nfsroot.rst: Fix references to nfsroot.rst 2020-03-02 13:11:46 -07:00
Makefile NFS: Move mount parameterisation bits into their own file 2020-01-15 10:15:17 -05:00
mount_clnt.c NFSv3: fix rpc receive buffer size for MOUNT call 2020-05-14 18:42:44 -04:00
namespace.c NFS: Add a module parameter to set nfs_mountpoint_expiry_timeout 2020-04-02 18:53:59 -04:00
netns.h NFS: Add sysfs support for per-container identifier 2019-07-06 14:54:49 -04:00
nfs.h
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c nfs: remove timespec from xdr_encode_nfstime 2020-01-15 10:54:30 -05:00
nfs3_fs.h NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3acl.c nfs: Fix potential posix_acl refcnt leak in nfs3_set_acl 2020-04-20 09:58:59 -04:00
nfs3client.c NFS: Additional refactoring for fs_context conversion 2020-01-15 10:15:17 -05:00
nfs3proc.c NFS: move dprintk after nfs_alloc_fattr in nfs3_proc_lookup 2020-05-27 10:08:26 -04:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-01-15 10:54:32 -05:00
nfs4_fs.h NFSv4: Use sequence counter with associated spinlock 2020-07-29 16:14:28 +02:00
nfs4client.c nfs: add minor version to nfs_server_key for fscache 2020-02-25 13:53:24 -05:00
nfs4file.c NFSv4.2: error out when relink swapfile 2020-03-16 10:14:30 -04:00
nfs4getroot.c
nfs4idmap.c Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs" 2019-07-10 18:43:43 -07:00
nfs4idmap.h
nfs4namespace.c nfs: Fix memory leak of export_path 2020-06-26 08:43:14 -04:00
nfs4proc.c NFS: Fix interrupted slots by sending a solo SEQUENCE operation 2020-07-13 10:50:41 -04:00
nfs4renewd.c NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals 2020-02-04 12:27:55 -05:00
nfs4session.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
nfs4session.h NFSv4.1: Bump the default callback session slot count to 16 2019-03-02 16:25:26 -05:00
nfs4state.c NFSv4: Use sequence counter with associated spinlock 2020-07-29 16:14:28 +02:00
nfs4super.c NFS: Attach supplementary error information to fs_context. 2020-01-15 10:15:17 -05:00
nfs4sysctl.c
nfs4trace.c pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4trace.h NFSv4: Add support for CB_RECALL_ANY for flexfiles layouts 2020-03-16 08:34:30 -04:00
nfs4xdr.c NFS/pnfs: Fix pnfs_generic_prepare_to_resend_writes() 2020-01-15 10:54:32 -05:00
nfs42.h NFS based on file size issue sync copy or fallback to generic copy offload 2019-10-09 12:06:22 -04:00
nfs42proc.c NFS: Fix memory leaks 2020-02-04 11:01:54 -05:00
nfs42xdr.c NFS: add ca_source_server<> to COPY 2019-10-09 12:05:49 -04:00
nfsroot.c nfsroot: set tcp as the default transport protocol 2020-03-25 08:45:47 -04:00
nfstrace.c NFS: Add trace events to report non-zero NFS status codes 2019-02-13 12:03:21 -05:00
nfstrace.h NFS: Add a tracepoint in nfs_set_pgio_error() 2020-06-11 13:33:48 -04:00
pagelist.c NFS: Add a tracepoint in nfs_set_pgio_error() 2020-06-11 13:33:48 -04:00
pnfs_dev.c NFS/flexfiles: Speed up read failover when DSes are down 2019-03-01 22:37:38 -05:00
pnfs_nfs.c NFS/pnfs: Don't use RPC_TASK_CRED_NOREF with pnfs 2020-05-13 09:55:36 -04:00
pnfs.c NFS/pnfs: Fix a credential use-after-free issue in pnfs_roc() 2020-04-19 23:53:52 -04:00
pnfs.h pNFS/flexfiles: Check the layout segment range before doing I/O 2020-03-27 16:34:35 -04:00
proc.c NFS: Add softreval behaviour to nfs_lookup_revalidate() 2020-01-24 16:51:13 -05:00
read.c NFS: Trace short NFS READs 2020-06-11 13:33:48 -04:00
super.c Merge tag 'fscache-fixes-20200508-2' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs 2020-05-11 14:06:50 -04:00
symlink.c nfs: pass the correct prototype to read_cache_page 2019-05-09 16:26:57 -04:00
sysctl.c
sysfs.c fs: nfs: sysfs: Remove NULL check before kfree 2019-11-18 10:38:04 +01:00
sysfs.h NFS: Use the correct style for SPDX License Identifier 2020-05-27 10:08:26 -04:00
unlink.c NFS: Avoid referencing the cred twice in async rename/unlink 2020-03-16 08:34:29 -04:00
write.c mm/writeback: discard NR_UNSTABLE_NFS, use NR_WRITEBACK instead 2020-06-02 10:59:08 -07:00