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b14a705362
freebsd-nq/sys/fs
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Rick Macklem d189dcb6e2 Alex Burlyga reported a POLA violation for the new NFS client as 
compared to the old NFS client via email to the freebsd-fs@ mailing list.
For the new client, when multiple clients attempted to create a symbolic
link concurrently, more that one client would report success instead of
EEXIST. This was caused by code in the new client that mapped EEXIST to
OK assuming it was caused by a retried RPC request.
Since the old client did not do this, the patch defaults to the old
behaviour and permits the new behaviour to be enabled via a sysctl.

Reported by:	alex.burlyga.ietf@gmail.com
Tested by:	alex.burlyga.ietf@gmail.com
MFC after:	2 weeks
2015-07-03 01:15:21 +00:00
..
autofs Restore ABI compatibility, broken in r273127. Note that while this fixes 2015-02-10 16:17:16 +00:00
cd9660 Fix a bunch of -Wcast-qual warnings in cd9660_util.c, by using 2015-01-29 20:40:25 +00:00
cuse
deadfs
devfs Add a new file operations hook for mmap operations. File type-specific 2015-06-04 19:41:15 +00:00
ext2fs Provide VOP_GETPAGES_ASYNC() for extfs. 2015-05-28 21:06:59 +00:00
fdescfs Replace struct filedesc argument in getvnode with struct thread 2015-06-16 13:09:18 +00:00
fifofs Make SIGSTOP working for sleeps done while waiting for fifo readers or 2015-01-18 15:03:26 +00:00
fuse File systems that do not use the buffer cache (such as ZFS) must 2015-04-15 20:16:31 +00:00
msdosfs File systems that do not use the buffer cache (such as ZFS) must 2015-04-15 20:16:31 +00:00
nandfs File systems that do not use the buffer cache (such as ZFS) must 2015-04-15 20:16:31 +00:00
nfs Make the size of the hash tables used by the NFSv4 server tunable. 2015-05-27 22:00:05 +00:00
nfsclient Alex Burlyga reported a POLA violation for the new NFS client as 2015-07-03 01:15:21 +00:00
nfsserver Make the NFS server use shared vnode locks for a few cases 2015-05-29 20:22:53 +00:00
nullfs File systems that do not use the buffer cache (such as ZFS) must 2015-04-15 20:16:31 +00:00
procfs Provide vnode in memory map info for files on tmpfs 2015-06-02 18:37:04 +00:00
pseudofs Hide vfs.pfs.trace variable if it is not used. 2015-05-24 18:11:22 +00:00
smbfs Fix a -Wcast-qual warning in smbfs_subr.c, by using __DECONST. No 2015-01-30 22:02:32 +00:00
tmpfs Huge cleanup of random(4) code. 2015-06-30 17:00:45 +00:00
udf Fix a -Wcast-qual warning in udf_vnops.c, by using __DECONST. No 2015-01-30 22:01:45 +00:00
unionfs unionfs: fix suspendability check bugs 2015-06-06 16:36:13 +00:00