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From e18d900f585d2fe319d3c0f6d10c11dc0acefed4 Mon Sep 17 00:00:00 2001
From: Marc Dionne <marc.c.dionne@gmail.com>
Date: Wed, 9 Jan 2013 21:22:27 -0500
Subject: [PATCH] Linux 3.8: vmtruncate removal
vmtruncate had been deprecated for a while and has now been
removed. Do things the new way based on truncate_setsize.
Reviewed-on: http://gerrit.openafs.org/8906
Reviewed-by: Chas Williams - CONTRACTOR <chas@cmf.nrl.navy.mil>
Tested-by: BuildBot <buildbot@rampaginggeek.com>
Reviewed-by: Derrick Brashear <shadow@your-file-system.com>
(cherry picked from commit d0479bbaf43900d6733c3f7517926ee9813c9610)
Change-Id: Ie0065cb0ca817c1af5ed51418a0474012050f34d
---
acinclude.m4 | 1 +
src/afs/LINUX/osi_compat.h | 14 ++++++++++++++
src/afs/LINUX/osi_vm.c | 5 ++---
3 files changed, 17 insertions(+), 3 deletions(-)
diff --git a/acinclude.m4 b/acinclude.m4
index 0a05caa..4223bb1 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -824,6 +824,7 @@ case $AFS_SYSNAME in *_linux* | *_umlinux*)
AC_CHECK_LINUX_STRUCT([file_operations], [sendfile], [fs.h])
AC_CHECK_LINUX_STRUCT([file_system_type], [mount], [fs.h])
AC_CHECK_LINUX_STRUCT([filename], [name], [fs.h])
+ AC_CHECK_LINUX_STRUCT([inode_operations], [truncate], [fs.h])
AC_CHECK_LINUX_STRUCT([key_type], [preparse], [key-type.h])
AC_CHECK_LINUX_STRUCT([nameidata], [path], [namei.h])
AC_CHECK_LINUX_STRUCT([proc_dir_entry], [owner], [proc_fs.h])
diff --git a/src/afs/LINUX/osi_compat.h b/src/afs/LINUX/osi_compat.h
index a777542..e8bf003 100644
--- a/src/afs/LINUX/osi_compat.h
+++ b/src/afs/LINUX/osi_compat.h
@@ -537,4 +537,18 @@ afs_set_session_keyring(struct key *keyring)
return old;
}
+static inline int
+afs_truncate(struct inode *inode, int len)
+{
+ int code;
+#if defined(STRUCT_INODE_OPERATIONS_HAS_TRUNCATE)
+ code = vmtruncate(inode, len);
+#else
+ code = inode_newsize_ok(inode, len);
+ if (!code)
+ truncate_setsize(inode, len);
+#endif
+ return code;
+}
+
#endif /* AFS_LINUX_OSI_COMPAT_H */
diff --git a/src/afs/LINUX/osi_vm.c b/src/afs/LINUX/osi_vm.c
index 2cd34f9..8bc792e 100644
--- a/src/afs/LINUX/osi_vm.c
+++ b/src/afs/LINUX/osi_vm.c
@@ -51,8 +51,7 @@ osi_VM_FlushVCache(struct vcache *avc, int *slept)
if (avc->opens != 0)
return EBUSY;
- return vmtruncate(ip, 0);
- return 0;
+ return afs_truncate(ip, 0);
}
/* Try to invalidate pages, for "fs flush" or "fs flushv"; or
@@ -132,5 +131,5 @@ osi_VM_FlushPages(struct vcache *avc, afs_ucred_t *credp)
void
osi_VM_Truncate(struct vcache *avc, int alen, afs_ucred_t *acred)
{
- vmtruncate(AFSTOV(avc), alen);
+ afs_truncate(AFSTOV(avc), alen);
}
--
1.7.2.5
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