Attachment 703021 Details for Bug 915862 – potential fix for upstream kernel

[patch] potential fix for upstream kernel

0001-NFSv4-Fix-the-sync-mount-option-for-nfs4-mounts.patch (text/plain), 1.21 KB, created by Scott Mayhew on 2013-02-26 16:40:34 UTC

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Creator: Scott Mayhew

Created: 2013-02-26 16:40:34 UTC

Size: 1.21 KB

patch

obsolete

>From 34235e4f76279b39ea86e3871d5214b284d2479e Mon Sep 17 00:00:00 2001
>From: Scott Mayhew <smayhew@redhat.com>
>Date: Tue, 26 Feb 2013 11:24:31 -0500
>Subject: [PATCH] NFSv4: Fix the sync mount option for nfs4 mounts
>
>The sync mount option stopped working for NFSv4 mounts after commit
>c02d7adf8c5429727a98bad1d039bccad4c61c50 (NFSv4: Replace nfs4_path_walk() with
>FS path lookup in a private namespace).  If MS_SYNCHRONOUS is set in the
>super_block that we're cloning from, then it should be set in the new
>super_block as well.
>---
> fs/nfs/super.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
>diff --git a/fs/nfs/super.c b/fs/nfs/super.c
>index befbae0..a739bfe 100644
>--- a/fs/nfs/super.c
>+++ b/fs/nfs/super.c
>@@ -2405,6 +2405,10 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
> 	if (server->flags & NFS_MOUNT_NOAC)
> 		sb_mntdata.mntflags |= MS_SYNCHRONOUS;
> 
>+	if (mount_info->cloned != NULL && mount_info->cloned->sb != NULL)
>+		if (mount_info->cloned->sb->s_flags & MS_SYNCHRONOUS)
>+			sb_mntdata.mntflags |= MS_SYNCHRONOUS;
>+
> 	/* Get a superblock - note that we may end up sharing one that already exists */
> 	s = sget(nfs_mod->nfs_fs, compare_super, nfs_set_super, flags, &sb_mntdata);
> 	if (IS_ERR(s)) {
>-- 
>1.7.11.7
>

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