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Date: Fri, 16 Sep 2022 12:08:24 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Dave Wysochanski <dwysocha@...hat.com>, Trond Myklebust <trond.myklebust@...merspace.com> Subject: [PATCH 5.15 01/35] NFS: Fix WARN_ON due to unionization of nfs_inode.nrequests From: Dave Wysochanski <dwysocha@...hat.com> commit 0ebeebcf59601bcfa0284f4bb7abdec051eb856d upstream. Fixes the following WARN_ON WARNING: CPU: 2 PID: 18678 at fs/nfs/inode.c:123 nfs_clear_inode+0x3b/0x50 [nfs] ... Call Trace: nfs4_evict_inode+0x57/0x70 [nfsv4] evict+0xd1/0x180 dispose_list+0x48/0x60 evict_inodes+0x156/0x190 generic_shutdown_super+0x37/0x110 nfs_kill_super+0x1d/0x40 [nfs] deactivate_locked_super+0x36/0xa0 Signed-off-by: Dave Wysochanski <dwysocha@...hat.com> Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- include/linux/nfs_fs.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -593,7 +593,9 @@ bool nfs_commit_end(struct nfs_mds_commi static inline int nfs_have_writebacks(struct inode *inode) { - return atomic_long_read(&NFS_I(inode)->nrequests) != 0; + if (S_ISREG(inode->i_mode)) + return atomic_long_read(&NFS_I(inode)->nrequests) != 0; + return 0; } /*
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