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dc4fd9ab01
linux-next/fs/nfs
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Scott Mayhew dc4fd9ab01 nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests 
If there were no commit requests, then nfs_commit_inode() should not
wait on the commit or mark the inode dirty, otherwise the following
BUG_ON can be triggered:

[ 1917.130762] kernel BUG at fs/inode.c:578!
[ 1917.130766] Oops: Exception in kernel mode, sig: 5 [#1]
[ 1917.130768] SMP NR_CPUS=2048 NUMA pSeries
[ 1917.130772] Modules linked in: iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi blocklayoutdriver rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache sunrpc sg nx_crypto pseries_rng ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common ibmvscsi scsi_transport_srp ibmveth scsi_tgt dm_mirror dm_region_hash dm_log dm_mod
[ 1917.130805] CPU: 2 PID: 14923 Comm: umount.nfs4 Tainted: G               ------------ T 3.10.0-768.el7.ppc64 #1
[ 1917.130810] task: c0000005ecd88040 ti: c00000004cea0000 task.ti: c00000004cea0000
[ 1917.130813] NIP: c000000000354178 LR: c000000000354160 CTR: c00000000012db80
[ 1917.130816] REGS: c00000004cea3720 TRAP: 0700   Tainted: G               ------------ T  (3.10.0-768.el7.ppc64)
[ 1917.130820] MSR: 8000000100029032 <SF,EE,ME,IR,DR,RI>  CR: 22002822  XER: 20000000
[ 1917.130828] CFAR: c00000000011f594 SOFTE: 1
GPR00: c000000000354160 c00000004cea39a0 c0000000014c4700 c0000000018cc750
GPR04: 000000000000c750 80c0000000000000 0600000000000000 04eeb76bea749a03
GPR08: 0000000000000034 c0000000018cc758 0000000000000001 d000000005e619e8
GPR12: c00000000012db80 c000000007b31200 0000000000000000 0000000000000000
GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
GPR24: 0000000000000000 c000000000dfc3ec 0000000000000000 c0000005eefc02c0
GPR28: d0000000079dbd50 c0000005b94a02c0 c0000005b94a0250 c0000005b94a01c8
[ 1917.130867] NIP [c000000000354178] .evict+0x1c8/0x350
[ 1917.130871] LR [c000000000354160] .evict+0x1b0/0x350
[ 1917.130873] Call Trace:
[ 1917.130876] [c00000004cea39a0] [c000000000354160] .evict+0x1b0/0x350 (unreliable)
[ 1917.130880] [c00000004cea3a30] [c0000000003558cc] .evict_inodes+0x13c/0x270
[ 1917.130884] [c00000004cea3af0] [c000000000327d20] .kill_anon_super+0x70/0x1e0
[ 1917.130896] [c00000004cea3b80] [d000000005e43e30] .nfs_kill_super+0x20/0x60 [nfs]
[ 1917.130900] [c00000004cea3c00] [c000000000328a20] .deactivate_locked_super+0xa0/0x1b0
[ 1917.130903] [c00000004cea3c80] [c00000000035ba54] .cleanup_mnt+0xd4/0x180
[ 1917.130907] [c00000004cea3d10] [c000000000119034] .task_work_run+0x114/0x150
[ 1917.130912] [c00000004cea3db0] [c00000000001ba6c] .do_notify_resume+0xcc/0x100
[ 1917.130916] [c00000004cea3e30] [c00000000000a7b0] .ret_from_except_lite+0x5c/0x60
[ 1917.130919] Instruction dump:
[ 1917.130921] 7fc3f378 486734b5 60000000 387f00a0 38800003 4bdcb365 60000000 e95f00a0
[ 1917.130927] 694a0060 7d4a0074 794ad182 694a0001 <0b0a0000> 892d02a4 2f890000 40de0134

Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2017-12-15 14:31:50 -05:00
..
blocklayout block: replace bi_bdev with a gendisk pointer and partitions index 2017-08-23 12:49:55 -06:00
filelayout fs, nfs: convert nfs_client.cl_count from atomic_t to refcount_t 2017-11-17 13:48:01 -05:00
flexfilelayout fs, nfs: convert nfs_client.cl_count from atomic_t to refcount_t 2017-11-17 13:48:01 -05:00
cache_lib.c fs, nfs: convert nfs_cache_defer_req.count from atomic_t to refcount_t 2017-11-17 13:48:00 -05:00
cache_lib.h fs, nfs: convert nfs_cache_defer_req.count from atomic_t to refcount_t 2017-11-17 13:48:00 -05:00
callback_proc.c NFS: Fix bool initialization/comparison 2017-11-17 16:43:43 -05:00
callback_xdr.c Chuck's RDMA update overhauls the "call receive" side of the 2017-07-13 13:56:24 -07:00
callback.c nfs: remove net pointer from messages 2017-11-17 16:43:51 -05:00
callback.h nfs: don't cast callback decode/proc/encode routines 2017-07-13 15:57:56 -04:00
client.c nfs: fix a deadlock in nfs client initialization 2017-12-15 14:31:49 -05:00
delegation.c NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID. 2017-11-17 16:43:47 -05:00
delegation.h NFSv4: Retry CLOSE and DELEGRETURN on NFS4ERR_OLD_STATEID. 2017-11-17 16:43:47 -05:00
dir.c NFS: Fix a typo in nfs_rename() 2017-11-17 16:43:46 -05:00
direct.c NFSv4: Use a mutex to protect the per-inode commit lists 2017-08-15 11:54:47 -04:00
dns_resolve.c
dns_resolve.h
export.c nfs: add export operations 2017-07-13 17:12:04 -04:00
file.c NFS: Revert "NFS: Move the flock open mode check into nfs_flock()" 2017-11-17 16:43:52 -05:00
fscache-index.c fscache: remove unused ->now_uncached callback 2017-09-06 17:27:26 -07:00
fscache.c
fscache.h
getroot.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
inode.c nfs client: exit_net cleanup check added 2017-11-17 16:43:50 -05:00
internal.h NFS: various changes relating to reporting IO errors. 2017-09-11 22:28:56 -04:00
io.c NFS: Do not serialise O_DIRECT reads and writes 2016-07-05 19:11:04 -04:00
iostat.h
Kconfig pnfs/blocklayout: require 64-bit sector_t 2017-08-11 14:10:13 -04:00
Makefile nfs: add export operations 2017-07-13 17:12:04 -04:00
mount_clnt.c nfs: count correct array for mnt3_counts array size 2017-07-21 08:49:57 -04:00
namespace.c NFS: Use ERR_CAST() to avoid cross-structure cast 2017-05-28 10:11:47 -07:00
netns.h netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nfs2super.c
nfs2xdr.c NFS: convert flags to bool 2017-07-13 15:58:04 -04:00
nfs3_fs.h
nfs3acl.c posix_acl: Inode acl caching fixes 2016-03-31 00:30:15 -04:00
nfs3client.c NFS: Remove unused authflavour parameter from nfs_get_client() 2016-12-01 17:46:32 -05:00
nfs3proc.c NFS: Don't compare apples to elephants to determine access bits 2017-10-16 13:51:27 -04:00
nfs3super.c
nfs3xdr.c NFS: convert flags to bool 2017-07-13 15:58:04 -04:00
nfs4_fs.h NFSv4: Replace closed stateids with the "invalid special stateid" 2017-11-17 16:43:49 -05:00
nfs4client.c nfs: fix a deadlock in nfs client initialization 2017-12-15 14:31:49 -05:00
nfs4file.c NFSv4: add flock_owner to open context 2016-12-01 17:57:27 -05:00
nfs4getroot.c NFS: Clean up nfs4_get_rootfh() 2017-04-20 13:39:35 -04:00
nfs4idmap.c NFS: Cleanup error handling in nfs_idmap_request_key() 2017-10-01 18:51:30 -04:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c NFS: Remove extra dprintk()s from nfs4namespace.c 2017-04-20 13:39:35 -04:00
nfs4proc.c NFS: Revert "NFS: Move the flock open mode check into nfs_flock()" 2017-11-17 16:43:52 -05:00
nfs4renewd.c NFSv4: Set the connection timeout to match the lease period 2017-02-09 14:15:16 -05:00
nfs4session.c NFSv4.1: Fix regression in callback retry handling 2016-12-01 17:21:38 -05:00
nfs4session.h NFS: Make trace_nfs4_setup_sequence() available to NFS v4.0 2017-01-30 13:14:50 -05:00
nfs4state.c NFSv4: Ensure gcc 4.4.4 can compile initialiser for "invalid_stateid" 2017-11-29 13:46:32 -05:00
nfs4super.c NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4sysctl.c nfs: do not initialise statics to 0 2015-12-28 09:57:15 -05:00
nfs4trace.c pNFS: Modify pnfs_update_layout tracepoints to use layout stateid 2015-12-28 09:57:14 -05:00
nfs4trace.h NFSv4: Add a tracepoint to document open stateid updates 2017-11-17 16:43:45 -05:00
nfs4xdr.c NFSv4: Replace closed stateids with the "invalid special stateid" 2017-11-17 16:43:49 -05:00
nfs42.h NFS: Add COPY nfs operation 2016-05-17 15:47:55 -04:00
nfs42proc.c NFSv4.2 fix size storage for nfs42_proc_copy 2017-07-13 16:00:14 -04:00
nfs42xdr.c nfs: fix decoder callback prototypes 2017-07-13 15:57:56 -04:00
nfs.h
nfsroot.c nfsroot: make nfsroot to accept the 1024 bytes long directory name 2015-10-21 15:49:19 -05:00
nfstrace.c NFSv4: Allow tracing of NFSv4 fsync calls 2015-03-27 12:39:34 -04:00
nfstrace.h NFS: Add static NFS I/O tracepoints 2017-09-11 22:20:38 -04:00
pagelist.c NFS: various changes relating to reporting IO errors. 2017-09-11 22:28:56 -04:00
pnfs_dev.c NFSv4.1: Don't cache deviceids that have no notifications 2015-03-27 12:32:24 -04:00
pnfs_nfs.c fs, nfs: convert nfs4_pnfs_ds.ds_count from atomic_t to refcount_t 2017-11-17 13:47:59 -05:00
pnfs.c pNFS: Retry NFS4ERR_OLD_STATEID errors in layoutreturn-on-close 2017-11-17 16:43:47 -05:00
pnfs.h pNFS: Retry NFS4ERR_OLD_STATEID errors in layoutreturn-on-close 2017-11-17 16:43:47 -05:00
proc.c NFS: convert flags to bool 2017-07-13 15:58:04 -04:00
read.c NFS: Add static NFS I/O tracepoints 2017-09-11 22:20:38 -04:00
super.c NFS: Fix typo in nomigration mount option 2017-11-17 16:43:52 -05:00
symlink.c vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
sysctl.c
unlink.c NFS: nfs_rename() - revalidate directories on -ERESTARTSYS 2017-07-13 15:58:04 -04:00
write.c nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests 2017-12-15 14:31:50 -05:00