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8ac092519a
linux/fs/nfs
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Trond Myklebust 8ac092519a NFSv4.1: Fix a deadlock in layoutget 
We cannot call nfs4_handle_exception() without first ensuring that the
slot has been freed. If not, we end up deadlocking with the process
waiting for recovery to complete, and recovery waiting for the slot
table to drain.

Fixes: 2e80dbe7ac ("NFSv4.1: Close callback races for OPEN, LAYOUTGET...")
Cc: stable@vger.kernel.org # v4.8+
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2017-01-23 22:44:12 -05:00
..
blocklayout pnfs/blocklayout: fix last_write_offset incorrectly set to page boundary 2016-10-13 16:42:53 -04:00
filelayout NFSv4.1: nfs4_fl_prepare_ds must be careful about reporting success. 2016-12-19 17:29:48 -05:00
flexfilelayout ktime: Get rid of ktime_equal() 2016-12-25 17:21:23 +01:00
objlayout pNFS: Get rid of unnecessary layout parameter in encode_layoutreturn callback 2016-12-01 17:21:44 -05:00
cache_lib.c NFS: cache_lib: use complete() instead of complete_all() 2016-09-23 09:40:12 -04:00
cache_lib.h
callback_proc.c pNFS: Delay getting the layout header in CB_LAYOUTRECALL handlers 2016-12-01 17:21:42 -05:00
callback_xdr.c nfs: add handling for CB_NOTIFY_LOCK in client 2016-09-22 13:56:04 -04:00
callback.c NFSv4.x: hide array-bounds warning 2016-11-22 16:11:44 -05:00
callback.h nfs: add handling for CB_NOTIFY_LOCK in client 2016-09-22 13:56:04 -04:00
client.c NFS: Remove unused authflavour parameter from nfs_get_client() 2016-12-01 17:46:32 -05:00
delegation.c NFSv4: Optimise away forced revalidation when we know the attributes are OK 2016-12-01 17:21:37 -05:00
delegation.h NFSv4: nfs_inode_find_state_and_recover() should check all stateids 2016-09-27 14:34:35 -04:00
dir.c NFS: Fix and clean up the access cache validity checking 2016-12-19 17:29:39 -05:00
direct.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
dns_resolve.c
dns_resolve.h
file.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fscache-index.c
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 Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
internal.h NFS: Clean up cache validity checking 2016-12-19 17:29:35 -05:00
io.c NFS: Do not serialise O_DIRECT reads and writes 2016-07-05 19:11:04 -04:00
iostat.h
Kconfig kernel: conditionally support non-root users, groups and capabilities 2015-04-15 16:35:22 -07:00
Makefile NFS: Do not serialise O_DIRECT reads and writes 2016-07-05 19:11:04 -04:00
mount_clnt.c NFS: Remove unneeded NFS_DEBUG checking before define NFSDBG_FACILITY 2015-10-21 15:49:23 -05:00
namespace.c NFS: Trim extra slash in v4 nfs_path 2016-10-24 12:06:01 -04:00
netns.h netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
nfs2super.c
nfs2xdr.c nfs: save server READ/WRITE/COMMIT status 2015-02-03 11:06:40 -08:00
nfs3_fs.h nfsv3: introduce nfs3_set_ds_client 2015-02-03 11:06:34 -08:00
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 vfs: Remove {get,set,remove}xattr inode operations 2016-10-07 21:48:36 -04:00
nfs3super.c nfsv3: introduce nfs3_set_ds_client 2015-02-03 11:06:34 -08:00
nfs3xdr.c xprtrdma: Fix large NFS SYMLINK calls 2015-08-05 16:21:28 -04:00
nfs4_fs.h NFSv4: change nfs4_select_rw_stateid to take a lock_context inplace of lock_owner 2016-12-01 17:57:56 -05:00
nfs4client.c NFS: Remove unused authflavour parameter from nfs_get_client() 2016-12-01 17:46:32 -05:00
nfs4file.c NFSv4: add flock_owner to open context 2016-12-01 17:57:27 -05:00
nfs4getroot.c nfs: Remove invalid NFS_ATTR_FATTR_V4_REFERRAL checking in nfs4_get_rootfh 2015-07-01 11:31:22 -04:00
nfs4idmap.c KEYS: Add a facility to restrict new links into a keyring 2016-04-11 22:37:37 +01:00
nfs4idmap.h NFS: Move nfs_idmap.h into fs/nfs/ 2015-04-23 15:16:14 -04:00
nfs4namespace.c qstr: constify instances in nfs 2016-07-20 23:30:06 -04:00
nfs4proc.c NFSv4.1: Fix a deadlock in layoutget 2017-01-23 22:44:12 -05:00
nfs4renewd.c NFSv4: Cap the transport reconnection timer at 1/2 lease period 2016-08-05 19:22:22 -04:00
nfs4session.c NFSv4.1: Fix regression in callback retry handling 2016-12-01 17:21:38 -05:00
nfs4session.h NFSv4.1: Don't deadlock the state manager on the SEQUENCE status flags 2016-09-27 14:31:27 -04:00
nfs4state.c NFSv4: Fix client recovery when server reboots multiple times 2017-01-13 13:31:32 -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 tracing: Use __get_str() when manipulating strings 2016-07-15 15:52:20 -04:00
nfs4xdr.c NFSv4: Retry the DELEGRETURN if the embedded GETATTR is rejected with EACCES 2016-12-19 17:30:03 -05:00
nfs42.h NFS: Add COPY nfs operation 2016-05-17 15:47:55 -04:00
nfs42proc.c pNFS/flexfiles: Minor refactoring before adding iostats to layoutreturn 2016-12-03 15:37:45 -05:00
nfs42xdr.c pNFS/flexfiles: Minor refactoring before adding iostats to layoutreturn 2016-12-03 15:37:45 -05:00
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 client updates for Linux 4.8 2016-07-30 16:33:25 -07:00
pagelist.c NFS: discard nfs_lockowner structure. 2016-12-01 17:58:13 -05:00
pnfs_dev.c NFSv4.1: Don't cache deviceids that have no notifications 2015-03-27 12:32:24 -04:00
pnfs_nfs.c NFS: Remove unused authflavour parameter from nfs_get_client() 2016-12-01 17:46:32 -05:00
pnfs.c pNFS: Return RW layouts on OPEN_DOWNGRADE 2016-12-19 17:29:55 -05:00
pnfs.h pNFS/flexfiles: Minor refactoring before adding iostats to layoutreturn 2016-12-03 15:37:45 -05:00
proc.c fs: rename "rename2" i_op to "rename" 2016-09-27 11:03:58 +02:00
read.c mm: remove page_file_index 2016-10-07 18:46:28 -07:00
super.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
symlink.c vfs: remove ".readlink = generic_readlink" assignments 2016-12-09 16:45:04 +01:00
sysctl.c
unlink.c qstr: constify instances in nfs 2016-07-20 23:30:06 -04:00
write.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00