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authorTrond Myklebust <Trond.Myklebust@netapp.com>2011-05-11 18:00:51 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-05-11 22:52:13 -0400
commita75b9df9d3bfc3cd1083974c045ae31ce5f3434f (patch)
tree039cc65774c895d704f23a2c89b7f1bcd736e0b9 /fs/nfs/read.c
parent2887fe45522843149ccf72e01f43813be4fb36c5 (diff)
NFSv4.1: Ensure that layoutget uses the correct gfp modes
Currently, writebacks may end up recursing back into the filesystem due to GFP_KERNEL direct reclaims in the pnfs subsystem. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r--fs/nfs/read.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 7cded2b12a0..2bcf0dc306a 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -288,7 +288,7 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc)
atomic_set(&req->wb_complete, requests);
BUG_ON(desc->pg_lseg != NULL);
- lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ);
+ lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL);
ClearPageError(page);
offset = 0;
nbytes = desc->pg_count;
@@ -351,7 +351,7 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc)
}
req = nfs_list_entry(data->pages.next);
if ((!lseg) && list_is_singular(&data->pages))
- lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ);
+ lseg = pnfs_update_layout(desc->pg_inode, req->wb_context, IOMODE_READ, GFP_KERNEL);
ret = nfs_read_rpcsetup(req, data, &nfs_read_full_ops, desc->pg_count,
0, lseg);