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nfsd: Set PF_LOCAL_THROTTLE on local filesystems only

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[ Upstream commit 01cbf3853959feec40ec9b9a399e12a021cd4d81 ]

Don't set PF_LOCAL_THROTTLE on remote filesystems like NFS, since they
aren't expected to ever be subject to double buffering.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Trond Myklebust
2020-11-30 17:03:19 -05:00
committed by Greg Kroah-Hartman
parent f3056a0ac2
commit 0750e494c7
3 changed files with 14 additions and 3 deletions
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include/linux/exportfs.h
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@@ -216,6 +216,7 @@ struct export_operations {
#define EXPORT_OP_NOWCC (0x1) /* don't collect v3 wcc data */
#define EXPORT_OP_NOSUBTREECHK (0x2) /* no subtree checking */
#define EXPORT_OP_CLOSE_BEFORE_UNLINK (0x4) /* close files before unlink */
#define EXPORT_OP_REMOTE_FS (0x8) /* Filesystem is remote */
unsigned long flags;
};