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30 Commits

Author SHA1 Message Date
Edward Tomasz Napierala
e635011374 Silence down the "insmntque() failed" autofs error; it happens 
on shutdown and is perfectly normal.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2016-05-17 12:04:39 +00:00
Pedro F. Giffuni
02abd40029 kernel: use our nitems() macro when it is available through param.h. 
No functional change, only trivial cases are done in this sweep,

Discussed in:	freebsd-current
 2016-04-19 23:48:27 +00:00
Edward Tomasz Napierala
42ed64e39b Speed up lookups in autofs(5) by using red-black trees instead of linear 
searches.

Reviewed by:	kib@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5627
 2016-03-24 13:34:39 +00:00
Edward Tomasz Napierala
f8eecb9709 Pacify Coverity in a better way, to avoid write-only variable when building 
without INVARIANTS.

MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2016-03-16 14:00:45 +00:00
Edward Tomasz Napierala
ee4256cf01 Pacify Coverity. 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2016-03-15 20:42:36 +00:00
Edward Tomasz Napierala
49d8ebfe0e Remove name length limitation from autofs(5). The linear search with 
strlens is somewhat suboptimal, but it's a temporary measure that will
be replaced with red-black trees later on.

PR:		204417
Reviewed by:	kib@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5266
 2016-03-13 14:17:23 +00:00
Edward Tomasz Napierala
7571d31339 Use S_BLKSIZE instead of magic constant. 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2016-03-12 09:33:26 +00:00
Edward Tomasz Napierala
213ed83855 Fix autofs triggering problem. Assume you have an NFS server, 
192.168.1.1, with share "share". This commit fixes a problem
where "mkdir /net/192.168.1.1/share/meh" would return spurious
error instead of creating the directory if the target filesystem
wasn't mounted yet; subsequent attempts would work correctly.

The failure scenario is kind of complicated to explain, but it all
boils down to calling VOP_MKDIR() for the target filesystem (NFS)
with wrong dvp - the autofs vnode instead of the filesystem root
mounted over it.

Reviewed by:	kib@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5442
 2016-03-12 07:54:42 +00:00
Edward Tomasz Napierala
29836e077a Restore ABI compatibility, broken in r273127. Note that while this fixes 
ABI with 10.1, it breaks ABI for 11-CURRENT, so rebuild of automountd(8)
is neccessary.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2015-02-10 16:17:16 +00:00
Edward Tomasz Napierala
e3d5f1fe3b Implement "automount -c". 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-11-22 16:48:29 +00:00
Edward Tomasz Napierala
5742494d29 Remove useless debug. 
Sponsored by:	The FreeBSD Foundation
 2014-10-17 12:06:48 +00:00
Edward Tomasz Napierala
4cdc52bdef Make automountd(8) inform autofs(4) whether directory being handled can 
have wildcards.  This makes it possible for autofs(4) to avoid requesting
automountd(8) action on access to nonexistent nodes - unless wildcards
are actually used.

Note that this change breaks ABI for automountd(8).

Tested by:	dhw@
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-10-15 09:28:45 +00:00
Edward Tomasz Napierala
3e4adf76c4 Add assertion to catch duplicated notes. 
Sponsored by:	The FreeBSD Foundation
 2014-10-11 05:11:23 +00:00
Edward Tomasz Napierala
1609230854 Remove remnants of some cleanup; no functional changes. 
Sponsored by:	The FreeBSD Foundation
 2014-10-09 18:49:58 +00:00
Edward Tomasz Napierala
5d28b9ed32 Simplify; no functional changes. 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-10-08 09:44:02 +00:00
Edward Tomasz Napierala
d19c297e5f Make autofs use shared vnode locks. 
Reviewed by:	kib
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-10-04 09:37:40 +00:00
Edward Tomasz Napierala
baf9297e87 Fix autofs debug macros. 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-10-03 10:18:22 +00:00
Edward Tomasz Napierala
2eaebf35d6 Make autofs(4) use shared lock for lookups, instead of exclusive one. 
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
 2014-10-03 09:58:05 +00:00
Edward Tomasz Napierala
28a23d3d82 Call uma_zfree() outside of lock, and improve comment. 
Sponsored by:	The FreeBSD Foundation
 2014-10-02 10:37:56 +00:00
Edward Tomasz Napierala
759489f9e2 Make autofs timeout handling use timeout task instead of callout; 
that's because the handler can sleep on sx lock.

Reviewed by:	kib
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
 2014-10-02 10:31:32 +00:00
Edward Tomasz Napierala
5a66f6b3c4 Fix thinko that, with two map entries like shown below, in that order, 
made autofs mix them up: the second one wasn't visible in ls(1) output,
and trying to access it would trigger mount for the first one.

foobar		host:/foobar
foo		host:/foo

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
 2014-09-23 11:27:43 +00:00
Edward Tomasz Napierala
31a4b1aa03 Turns out -1 is a perfectly valid error number, ERESTART. Remove useless 
code written under assumption that it wasn't.

Sponsored by:	The FreeBSD Foundation
 2014-09-21 10:34:15 +00:00
Edward Tomasz Napierala
787b524980 Fix typos. 
Sponsored by:	The FreeBSD Foundation
 2014-09-18 10:33:23 +00:00
Edward Tomasz Napierala
7cb570d0ae Fix bug that, assuming a/ is a root of NFS filesystem mounted on autofs, 
prevented "mv a/from a/to" from working, while "cd a && mv from to" was ok.

PR:		192948
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-24 17:03:52 +00:00
Edward Tomasz Napierala
f81018caf2 Autofs softc needs to be global anyway, so don't pass it as a local 
variable, and don't store in autofs_mount.  Also rename it from 'sc'
to 'autofs_softc', since it's global and extern.

MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-23 11:45:14 +00:00
Edward Tomasz Napierala
a32ba4e63e Add comment explaining one of the quirks in autofs. 
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-23 11:38:31 +00:00
Edward Tomasz Napierala
f5440d1a9d Fix includes. 
Suggested by:	pluknet@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-21 15:59:25 +00:00
Edward Tomasz Napierala
925fd94584 Use __FBSDID() properly. 
Suggested by:	pluknet@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-21 15:07:25 +00:00
Edward Tomasz Napierala
2f438a99cd Rework ".." lookup; previous one failed to properly busy the mountpoint. 
Reviewed by:	kib@
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
 2014-08-20 13:46:51 +00:00
Edward Tomasz Napierala
3914ddf8a7 Bring in the new automounter, similar to what's provided in most other 
UNIX systems, eg. MacOS X and Solaris.  It uses Sun-compatible map format,
has proper kernel support, and LDAP integration.

There are still a few outstanding problems; they will be fixed shortly.

Reviewed by:	allanjude@, emaste@, kib@, wblock@ (earlier versions)
Phabric:	D523
MFC after:	2 weeks
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
 2014-08-17 09:44:42 +00:00