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47e6a3971f
freebsd-nq/sys
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Ed Schouten 47e6a3971f Block when initially opening a TTY multiple times. 
In the original MPSAFE TTY code, I changed the behaviour by returning
EBUSY. I thought this made more sense, because it's basically a race to
see who gets the TTY first.

It turns out this is not a good change, because it also causes EBUSY to
be returned when another process is closing the TTY. This can happen
during startup, when /etc/rc (or one of its children) is still busy
draining its data and /sbin/init is attempting to open the TTY to spawn
a getty.

Reported by:	bz
Tested by:	bz
2009-05-24 12:32:03 +00:00
..
amd64 Don't bother reading the initial value of the machine check banks during 2009-05-20 16:11:22 +00:00
arm accumulate npe statistics and expose them through dev.npe.X.stats 2009-05-23 19:14:20 +00:00
boot Improve the accf_dns_load description. 2009-05-17 10:58:50 +00:00
bsm Merge OpenBSM 1.1 from OpenBSM vendor branch to head. 2009-04-19 16:17:13 +00:00
cam Remove dead code. 2009-05-12 16:38:32 +00:00
cddl Unexpand $FreeBSD$. 2009-05-23 16:01:58 +00:00
compat Comment nits. 2009-05-20 18:36:17 +00:00
conf Add sysctls to toggle the behaviour of the (former) IPSEC_FILTERTUNNEL 2009-05-23 16:42:38 +00:00
contrib tbr_timeout() is a timer driven function[1]. While the previous commit 2009-05-18 01:05:09 +00:00
crypto identify routine takes driver_t *, not device_t *. 2009-02-05 19:30:28 +00:00
ddb Prefer prototypes to k&r definitions. 2009-03-09 13:32:19 +00:00
dev Partial reversion of previous commit. The CXGB_SHUTDOWN flag does NOT 2009-05-22 18:26:47 +00:00
fs Fix the experimental nfsv4 client so that it works for the 2009-05-24 03:22:49 +00:00
gdb
geom Check return value of gctl_get_asciiparam(). 2009-05-12 16:59:50 +00:00
gnu Remove empty files and do nto try to build them. 2009-05-18 17:20:24 +00:00
i386 We don't need d_thread_t for cross-branch portability here anymore. 2009-05-20 16:47:40 +00:00
ia64 Rename ia64_invalidate_icache() to ia64_sync_icache(). We're 2009-05-18 18:44:54 +00:00
isa Rename statclock_disable variable to atrtcclock_disable that it actually is, 2009-05-03 17:47:21 +00:00
kern Block when initially opening a TTY multiple times. 2009-05-24 12:32:03 +00:00
kgssapi Fix build of KGSSAPI bits post-vimage. 2009-05-24 11:10:27 +00:00
legacy/dev Garbage collect legacy upgt driver now that it is available in the new 2009-05-13 17:11:25 +00:00
libkern Add memmove() to the kernel, making the kernel compile with Clang. 2009-02-28 16:21:25 +00:00
mips pmap_enter() *must* set PG_WRITEABLE on the given page if it creates a 2009-05-23 22:05:14 +00:00
modules Remove the unmaintained University of Michigan NFSv4 client from 8.x 2009-05-22 12:35:12 +00:00
net V_irtualize the if_clone framework, thus allowing for clonable ifnets 2009-05-23 21:43:44 +00:00
net80211 Prepare to distribute sysctl code to reduce global definitions: 2009-05-20 20:18:01 +00:00
netatalk Lock interface address list lock around ifaddr inserts and deletes 2009-04-19 22:01:38 +00:00
netgraph Fix copy-paste bug in NGM_NETFLOW_SETCONFIG argument size verification. 2009-05-13 02:26:34 +00:00
netinet For UDP with introducing the UDP control block, the uma zone had to 2009-05-23 17:02:30 +00:00
netinet6 Implement UDP control block support. 2009-05-23 16:51:13 +00:00
netipsec Add sysctls to toggle the behaviour of the (former) IPSEC_FILTERTUNNEL 2009-05-23 16:42:38 +00:00
netipx Make the SPX code use its own copies of insque()/remque(). 2009-04-26 21:03:27 +00:00
netnatm Replace d_thread_t * with struct thread *. 2009-05-20 17:00:16 +00:00
netncp
netsmb Implement device cloning for /dev/nsmb, the netsmb control pseudo-device. 2008-11-03 14:23:15 +00:00
nfs Add cpu_flush_dcache() for use after non-DMA based I/O so that a 2009-05-18 18:37:18 +00:00
nfsclient While r192615 fixed the former problems, make this file VIMAGE 2009-05-23 16:27:42 +00:00
nfsserver Fix build of KGSSAPI bits post-vimage. 2009-05-24 11:10:27 +00:00
nlm Remove the unmaintained University of Michigan NFSv4 client from 8.x 2009-05-22 12:35:12 +00:00
opencrypto Fix cryptodev UIO creation. 2009-05-23 13:23:46 +00:00
pc98 Add cpu_flush_dcache() for use after non-DMA based I/O so that a 2009-05-18 18:37:18 +00:00
pci For RTL8139C+ controllers, have controller handle padding short 2009-04-20 07:13:04 +00:00
powerpc Improve style(9), clean up. 2009-05-21 12:05:15 +00:00
rpc Remove the unmaintained University of Michigan NFSv4 client from 8.x 2009-05-22 12:35:12 +00:00
security Remove the thread argument from the FSD (File-System Dependent) parts of 2009-05-11 15:33:26 +00:00
sparc64 Add nge(4), nge(4) should work on all architectures. 2009-05-21 02:19:01 +00:00
sun4v Add cpu_flush_dcache() for use after non-DMA based I/O so that a 2009-05-18 18:37:18 +00:00
sys Even if not entirely style clean the heavy nesting of the various 2009-05-23 22:57:49 +00:00
tools Add SDT DTrace probes for VFS vnode operations in the vfs:vop 2009-03-29 03:30:15 +00:00
ufs Make 'struct acl' larger, as required to support NFSv4 ACLs. Provide 2009-05-22 15:56:43 +00:00
vm - back out direct map hack 2009-05-19 01:14:37 +00:00
xdr Add memmove() to the kernel, making the kernel compile with Clang. 2009-02-28 16:21:25 +00:00
xen Fix the Xen build for i386 PV mode. 2009-04-01 17:06:28 +00:00
Makefile Remove the unmaintained University of Michigan NFSv4 client from 8.x 2009-05-22 12:35:12 +00:00