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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-02-18 18:02:29 +0300 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-02-20 23:14:21 +0300 |
| commit | a1231fda7e944adf37d8368b2e182041a39ea1ca (patch) | |
| tree | 82eb1c7fa4acc00f7a6d2ce06dca07ac44666719 /net/sunrpc/xprt.c | |
| parent | e9acf2105fdba95953e786612243a4a3a1d0b166 (diff) | |
| download | linux-a1231fda7e944adf37d8368b2e182041a39ea1ca.tar.xz | |
SUNRPC: Set memalloc_nofs_save() on all rpciod/xprtiod jobs
Set memalloc_nofs_save() on all the rpciod/xprtiod jobs so that we
ensure memory allocations for asynchronous rpc calls don't ever end
up recursing back to the NFS layer for memory reclaim.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'net/sunrpc/xprt.c')
| -rw-r--r-- | net/sunrpc/xprt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index f1ec2110efeb..b95f4452dbc6 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -49,6 +49,7 @@ #include <linux/sunrpc/metrics.h> #include <linux/sunrpc/bc_xprt.h> #include <linux/rcupdate.h> +#include <linux/sched/mm.h> #include <trace/events/sunrpc.h> @@ -643,11 +644,13 @@ static void xprt_autoclose(struct work_struct *work) { struct rpc_xprt *xprt = container_of(work, struct rpc_xprt, task_cleanup); + unsigned int pflags = memalloc_nofs_save(); clear_bit(XPRT_CLOSE_WAIT, &xprt->state); xprt->ops->close(xprt); xprt_release_write(xprt, NULL); wake_up_bit(&xprt->state, XPRT_LOCKED); + memalloc_nofs_restore(pflags); } /** |