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* NetBSD build fixes.Emmanuel Dreyfus2012-07-051-0/+2
| | | | | | | | | | | This is a backport of Change-Id: Ib8183d4b585465d05a7adf3a4ceae93ae1bded15 BUG: 764655 Change-Id: I552b87b72c234b3a11af6ffd4a03975879602363 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.com/3574 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse, glusterfsd: mount logic fixesCsaba Henk2012-05-271-205/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7d0397c2 introduced two issues: i) broke the libfuse derived mount logic (details below) ii) in case of a daemonized glusterfs client is ran as daemon, parent process can return earlier than the mount is in place, which breaks agents that programmatically do a gluster mount via a direct call to glusterfs (ie. not via mount(8)). This patch fixes these issues by a refactor that merges the approaches sported by commits 7d0397c2 fuse: allow requests during mount (needed for SELinux labels) c5d781e0 upon daemonizing, wait on mtab update to terminate in parent Original daemonized libfuse event flow is as follows: try: fd = open("/dev/fuse") mount("-oopts,fd=%s" % fd ...) mount(8) -f # manipulate mtab except: sp = socketpair() env _FUSE_COMMFD=sp fusermount -oopts fd = receive_fd(sp) where fusermount(1) does: fd = open("/dev/fuse") mount("-oopts,fd=%d" % fd ...) sp = atoi(getenv("_FUSE_COMMFD")) send_fd(sp, fd) daemonize( # in child fuse_loop(fd) ) # in parent exit() As of 013850c9 (instead of adopting FUSE's 47e61004¹), we went for async mtab manipulation, and as of c5d781e0, still wanted keep that in sync with termination of daemon parent, so we changed it to: try: fd = open("/dev/fuse") mount("-oopts,fd=%s" % fd ...) pid = fork( # in child mount(8) -f ) except: sp = socketpair() env _FUSE_COMMFD=sp fusermount -oopts fd = receive_fd(sp) daemonize( fuse_loop(fd) ) waitpid(pid) exit() (Note the new approch came only to direct [privileged] mount, so fusermount based mounting was already partially broken.) As of 7d0397c2, with the purpose of facilitating async mount, the event flow was practically reduced to: fd = open("/dev/fuse") fork( mount("-oopts,fd=%s" % fd ...) fork( mount(8) -n ) ) daemonize( fuse_loop(fd) ) exit() Thus fusermount based mounting become defunct; however, the dead code was still kept around. So, we should either drop it or fix it. Also, the mtab manipulator is forked into yet another child with no purpose, while syncing with it in daemon parent is broken. mount(2) is neither synced with parent. Now we are coming to the following scheme: fd = open("/dev/fuse") pid = fork( try: mount("-oopts,fd=%s" % fd ...) mount(8) -n except: env _FUSE_DEVFD=fd fusermount -oopts ) where fusermount(1) does: fd = getenv("_FUSE_DEVFD") mount("-oopts,fd=%s" % fd ...) daemonize( fuse_loop(fd) ) waitpid(pid) exit() Nb.: - We can't help losing compatibility with upstream fusermount, as it sends back the fd only when mount(2) is completed, thus defeating the async mount approach. The 'getenv("_FUSE_DEVFD")' mechanism is specfic to glusterfs' fusermount (at the moment -- sure we can talk about it with upstream) - fusermount opens /dev/fuse at same privilege level as of original process², so we can bravely go on with doing the open unconditionally in original process - Original mounting code actually tries to mount through fusermount _twice_: if first attempt fails, then, assuming subtype support is missing in kernel, it tries again subtype stripped. However, this is redundant, as fusermount internally also performs the subtype check³. Therefore we simplified the logic to have just a single fusermount call. - we revert the changes to mount.glusterfs as of 7d0397c2, as now there is no issue with glusterfs to work around in that scope ¹ http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blobdiff;f=ChangeLog;h=47e61004;hb=4c3d9b19;hpb=e61b775a ² http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blob;f=util/fusermount.c;h=b2e87d95#l1023 ³ http://fuse.git.sourceforge.net/git/gitweb.cgi?p=fuse/fuse;a=blob;f=util/fusermount.c;h=b2e87d95#l839 Change-Id: I0c4ab70e0c5ad7b27337228749b266bcd0ba941d BUG: 811217 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3428 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* fuse: allow requests during mount (needed for SELinux labels)Csaba Henk2012-05-271-10/+50
| | | | | | | | | | | | | | | | | | | | | | | Resurrecting Jeff's commit: commit 7d0397c2144810c8a396e00187a6617873c94002 Author: Jeff Darcy <jdarcy@redhat.com> fuse: allow requests during mount (needed for SELinux labels) that was reverted as of: commit 4ab1c326f3862714b960302f06c6323d6291b695 Author: Vijay Bellur <vijay@gluster.com> Revert "fuse: allow requests during mount (needed for SELinux labels)" BUG: 811217 Change-Id: Ia1af402897e6a7290acf79617c34fdc804751729 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3452 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Revert "fuse: allow requests during mount (needed for SELinux labels)"Vijay Bellur2012-05-101-50/+10
| | | | This reverts commit 7d0397c2144810c8a396e00187a6617873c94002.
* fuse: allow requests during mount (needed for SELinux labels)Jeff Darcy2012-04-231-10/+50
| | | | | | | | | Change-Id: Ia1af402897e6a7290acf79617c34fdc804751729 BUG: 811217 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.com/3199 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: change lk-owner as a 1k bufferAmar Tumballi2012-01-241-1/+1
| | | | | | | | | | | | | so, NLM can send the lk-owner field directly to the locks translators, while doing the same effort, also enabled sending maximum of 500 aux gid over protocol. Change-Id: I87c2514392748416f7ffe21d5154faad2e413969 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 767229 Reviewed-on: http://review.gluster.com/779 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* We must #include <signal.h> for sigprocmask(2). Failure to do so will breakEmmanuel Dreyfus2011-11-231-0/+1
| | | | | | | | | | | on NetBSD kernel without COMPAT_13 option. Change-Id: Ia710bbe31ed48e4df4cd47f99e335d7226b99173 BUG: 2923 Reviewed-on: http://review.gluster.com/594 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@gluster.com>
* Use /bin/mount on Linux, /sbin/mount on other systemsEmmanuel Dreyfus2011-11-231-3/+9
| | | | | | | | | Change-Id: I8d2e518d29cedb1fbfa77d0189a2d4a24957e662 BUG: 2923 Reviewed-on: http://review.gluster.com/752 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* fuse: NetBSD portability fixesAnand Avati2011-05-301-0/+11
| | | | | | | | | | | | On NetBSD use libperfuse(3), rename umount2(2) as unmount(2), and skip inexistant /etc/mtab management. Thanks to: Emmanuel Dreyfus <manu@netbsd.org> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2923 (NetBSD port) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2923
* upon daemonizing, wait on mtab update to terminate in parentCsaba Henk2011-05-191-22/+30
| | | | | | | | | | | | | | This fixes the race in between the mtab update attempts of mount and umount when we do a lazy umount right after mounting, in order to hide the given fs instance; yet this way we still avoid the deadlock of the fs and mount which we can hit if we wait unconditionally for the mtab update to terminate (cf. bz #511). Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2690 (race between mtab updates of mount and umount) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2690
* build fixesVenky Shankar2011-04-111-2/+8
| | | | | | | | Signed-off-by: Venky Shankar <venky@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2550 (build warnings) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2550
* removed reference to GF_LOG_NORMALAmar Tumballi2011-04-071-1/+1
| | | | | | | | | | instead used GF_LOG_INFO, which is more standard log level. Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@gluster.com> BUG: 2669 (RuntimeError: cannot recognize log level "normal") URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2669
* Copyright changesVijay Bellur2010-10-111-1/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Changes to replace flock with gf_flock across GlusterFS.Pavan Sondur2010-10-011-1/+4
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
* contrib/fuse: update from upstream [555d6b50 in ↵Csaba Henk2010-10-011-2/+38
| | | | | | | | | | | | | | | | | | | | | | | | git://fuse.git.sourceforge.net/fuse/fuse] """ commit 555d6b504308eac6b976321ce938ee4bec62c354 Author: Miklos Szeredi <mszeredi@suse.cz> Date: Tue Sep 28 10:13:24 2010 +0200 Fix option escaping for fusermount. If the "fsname=" option contained a comma then the option parser in fusermount was confused (Novell bugzilla #641480). Fix by escaping commas when passing them over to fusermount. Reported by Jan Engelhardt """ Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1752 (sync with upstream for "Fix option escaping for fusermount.") URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1752
* fuse: bring over recent mounting code changes from libfuse upstreamCsaba Henk2010-02-211-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Following commits were ported (commit ids as of http://git.gluster.com/?p=users/csaba/fuse.git repo): commit 06fe3eb9c864b69bea98600c0a7eab7b63834735 Author: mszeredi <mszeredi> Date: Thu Feb 18 11:05:12 2010 +0000 * Fix stack alignment for clone() ChangeLog | 4 ++++ include/fuse_lowlevel.h | 1 + util/fusermount.c | 9 ++++----- 3 files changed, 9 insertions(+), 5 deletions(-) commit dfe1aab6520d70d72d36edf0508fef9a865daa5f Author: mszeredi <mszeredi> Date: Tue Jan 26 18:20:12 2010 +0000 * Fix race if two "fusermount -u" instances are run in parallel. Reported by Dan Rosenberg * Make sure that the path to be unmounted doesn't refer to a symlink ChangeLog | 8 + lib/mount.c | 2 +- lib/mount_util.c | 31 +++-- lib/mount_util.h | 3 +- util/fusermount.c | 380 +++++++++++++++++++++++++++++++++++++++++++++-------- 5 files changed, 351 insertions(+), 73 deletions(-) Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 657 (Metabug for tracking fuse upstream) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=657
* fuse: add mtab entry asynchronouslyCsaba Henk2009-12-281-0/+15
| | | | | | | | | | | | | | Instead of taking libfuse's approach to the bug referred -- making use of an ad-hoc mount option --, we get over the issue by not waiting for mtab manipulation to complete. If mtab manipulation happens to fail for some reason, just log an error message (instead of aborting the mount). Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 511 (mount hangs with some audit configurations) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=511
* Changed occurrences of Z Research to Gluster.Vijay Bellur2009-10-071-1/+1
| | | | Signed-off-by: Anand V. Avati <avati@dev.gluster.com>
* bring in fusermountCsaba Henk2009-08-121-3/+91
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* fuse: add proper mounting support, based on libfuse routinesCsaba Henk2009-08-121-0/+528
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* fuse: move libfuse derived code over under contrib/Csaba Henk2009-08-122-0/+533
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