Browse Source
Note: Upstream git repository: git://fuse.git.sourceforge.net/gitroot/fuse/fuse ----------------------------------------------------------------------------- shell> git format-patch --stdout \ --src-prefix=fuse-2.8.6/ \ --dst-prefix=fuse-2.8.6-bugfix/ \ fuse_2_8_6..origin/fuse_2_8_bugfix -----------------------------------------------------------------------------user/amery/next/luajit
Christian Wiese
13 years ago
1 changed files with 201 additions and 0 deletions
@ -0,0 +1,201 @@
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# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: package/.../fuse/fuse-2.8.6-upstream-bugfixes.patch
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# Copyright (C) 2011 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This patch file is dual-licensed. It is available under the license the
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# patched project is licensed under, as long as it is an OpenSource license
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# as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
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# of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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# --- SDE-COPYRIGHT-NOTE-END ---
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From 9294657fb966c685cf6a99f4bbe73a91eb2b8f3c Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@suse.cz>
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Date: Sun, 23 Oct 2011 10:07:20 +0200
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Subject: [PATCH 1/3] Reply with ENOMEM in case of failure to allocate request
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Reply to request with ENOMEM in case of failure to allocate request
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structure. Otherwise the task issuing the request will just freeze up
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until the filesystem daemon is killed. Reported by Stephan Kulow
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---
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ChangeLog | 7 +++++++
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lib/fuse_lowlevel.c | 11 +++++++++++
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2 files changed, 18 insertions(+), 0 deletions(-)
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diff --git fuse-2.8.6/ChangeLog fuse-2.8.6-bugfix/ChangeLog
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index 4be41e3..77a9b9e 100644
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--- fuse-2.8.6/ChangeLog
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+++ fuse-2.8.6-bugfix/ChangeLog
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@@ -1,3 +1,10 @@
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+2011-10-13 Miklos Szeredi <miklos@szeredi.hu>
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+
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+ * Reply to request with ENOMEM in case of failure to allocate
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+ request structure. Otherwise the task issuing the request will
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+ just freeze up until the filesystem daemon is killed. Reported by
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+ Stephan Kulow
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+
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2011-09-13 Miklos Szeredi <miklos@szeredi.hu>
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* Released 2.8.6
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diff --git fuse-2.8.6/lib/fuse_lowlevel.c fuse-2.8.6-bugfix/lib/fuse_lowlevel.c
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index c519bfb..c86a910 100644
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--- fuse-2.8.6/lib/fuse_lowlevel.c
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+++ fuse-2.8.6-bugfix/lib/fuse_lowlevel.c
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@@ -1467,7 +1467,18 @@ static void fuse_ll_process(void *data, const char *buf, size_t len,
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req = (struct fuse_req *) calloc(1, sizeof(struct fuse_req));
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if (req == NULL) {
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+ struct fuse_out_header out = {
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+ .unique = in->unique,
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+ .error = -ENOMEM,
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+ .len = sizeof(struct fuse_out_header),
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+ };
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+ struct iovec iov = {
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+ .iov_base = &out,
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+ .iov_len = sizeof(struct fuse_out_header),
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+ };
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+
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fprintf(stderr, "fuse: failed to allocate request\n");
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+ fuse_chan_send(ch, &iov, 1);
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return;
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}
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--
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1.7.2.3
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From 655794f4a1515f1eb5b00b2fcc32d3f31f56839b Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@suse.cz>
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Date: Thu, 17 Nov 2011 12:36:38 +0100
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Subject: [PATCH 2/3] Fix the following compile error
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fusermount.c: In function 'clone_newns':
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fusermount.c:315:2: warning: implicit declaration of function 'clone' [-Wimplicit-function-declaration]
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fusermount.c:315:44: error: 'CLONE_NEWNS' undeclared (first use in this function)
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fusermount.c:315:44: note: each undeclared identifier is reported only once for each function it appears in
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fusermount.c:317:1: warning: control reaches end of non-void function [-Wreturn-type]
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---
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util/fusermount.c | 1 +
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1 files changed, 1 insertions(+), 0 deletions(-)
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diff --git fuse-2.8.6/util/fusermount.c fuse-2.8.6-bugfix/util/fusermount.c
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index 70c18b7..6855b7e 100644
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--- fuse-2.8.6/util/fusermount.c
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+++ fuse-2.8.6-bugfix/util/fusermount.c
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@@ -7,6 +7,7 @@
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*/
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/* This program does the mounting and unmounting of FUSE filesystems */
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+#define _GNU_SOURCE /* for clone */
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#include <config.h>
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#include "mount_util.h"
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--
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1.7.2.3
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From 3743f3fe52cfd52bb1d75bcb8324a00f153dc9f8 Mon Sep 17 00:00:00 2001
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From: Miklos Szeredi <mszeredi@suse.cz>
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Date: Fri, 9 Dec 2011 16:07:55 +0100
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Subject: [PATCH 3/3] Fix hang in wait_on_path()
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Ville Silventoinen reported that fs_racer in LTP triggered a hang in
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wait_on_path(). This bug was caused by try_get_path() not resetting "ticket" on
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permanent failure.
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---
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ChangeLog | 4 ++++
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lib/fuse.c | 38 ++++++++++++++++++++++++++++++++++----
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2 files changed, 38 insertions(+), 4 deletions(-)
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diff --git fuse-2.8.6/ChangeLog fuse-2.8.6-bugfix/ChangeLog
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index 77a9b9e..2c25c0b 100644
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--- fuse-2.8.6/ChangeLog
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+++ fuse-2.8.6-bugfix/ChangeLog
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@@ -1,3 +1,7 @@
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+2011-12-09 Miklos Szeredi <miklos@szeredi.hu>
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+
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+ * Fix hang in wait_on_path(). Reported by Ville Silventoinen
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+
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2011-10-13 Miklos Szeredi <miklos@szeredi.hu>
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* Reply to request with ENOMEM in case of failure to allocate
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diff --git fuse-2.8.6/lib/fuse.c fuse-2.8.6-bugfix/lib/fuse.c
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index 95cf50b..d511964 100644
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--- fuse-2.8.6/lib/fuse.c
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+++ fuse-2.8.6-bugfix/lib/fuse.c
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@@ -495,6 +495,26 @@ static void unlock_path(struct fuse *f, fuse_ino_t nodeid, struct node *wnode,
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}
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}
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+static void release_tickets(struct fuse *f, fuse_ino_t nodeid,
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+ struct node *wnode, int ticket)
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+{
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+ struct node *node;
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+
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+ if (wnode) {
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+ if (wnode->ticket != ticket)
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+ return;
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+
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+ wnode->ticket = 0;
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+ }
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+
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+ for (node = get_node(f, nodeid);
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+ node->nodeid != FUSE_ROOT_ID; node = node->parent) {
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+ if (node->ticket != ticket)
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+ return;
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+ node->ticket = 0;
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+ }
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+}
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+
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static int try_get_path(struct fuse *f, fuse_ino_t nodeid, const char *name,
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char **path, struct node **wnodep, int ticket)
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{
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@@ -507,9 +527,10 @@ static int try_get_path(struct fuse *f, fuse_ino_t nodeid, const char *name,
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*path = NULL;
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+ err = -ENOMEM;
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buf = malloc(bufsize);
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if (buf == NULL)
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- return -ENOMEM;
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+ goto out_err;
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s = buf + bufsize - 1;
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*s = '\0';
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@@ -577,6 +598,10 @@ static int try_get_path(struct fuse *f, fuse_ino_t nodeid, const char *name,
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out_free:
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free(buf);
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+ out_err:
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+ if (ticket && err != -EAGAIN)
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+ release_tickets(f, nodeid, wnode, ticket);
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+
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return err;
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}
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@@ -711,9 +736,14 @@ static int try_get_path2(struct fuse *f, fuse_ino_t nodeid1, const char *name1,
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err = try_get_path(f, nodeid1, name1, path1, wnode1, ticket);
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if (!err) {
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err = try_get_path(f, nodeid2, name2, path2, wnode2, ticket);
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- if (err)
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- unlock_path(f, nodeid1, wnode1 ? *wnode1 : NULL, NULL,
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- ticket);
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+ if (err) {
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+ struct node *wn1 = wnode1 ? *wnode1 : NULL;
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+
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+ unlock_path(f, nodeid1, wn1, NULL, ticket);
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+ free(path1);
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+ if (ticket && err != -EAGAIN)
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+ release_tickets(f, nodeid1, wn1, ticket);
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+ }
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}
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return err;
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}
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--
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1.7.2.3
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