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authorTrond Myklebust <trond.myklebust@hammerspace.com>2022-03-21 22:32:09 +0300
committerTrond Myklebust <trond.myklebust@hammerspace.com>2022-03-22 22:52:56 +0300
commit63d8a41b1dbf24dfc2480cb28236e2f6844d89b9 (patch)
treed468be3b6af9d9ecbb4be2f368db2a54ea3b685c /fs/nfs
parent0bae835b63c53f86cdc524f5962e39409585b22c (diff)
downloadlinux-63d8a41b1dbf24dfc2480cb28236e2f6844d89b9.tar.xz
NFSv4/pnfs: Ensure pNFS allocation modes are consistent with nfsiod
Ensure that pNFS allocations that can be called from rpciod/nfsiod callback can fail in low memory mode, so that the threads don't block and loop forever. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs42proc.c2
-rw-r--r--fs/nfs/pnfs.c39
2 files changed, 18 insertions, 23 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 882bf84484ac..b841e267b764 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -1017,7 +1017,7 @@ int nfs42_proc_layouterror(struct pnfs_layout_segment *lseg,
return -EOPNOTSUPP;
if (n > NFS42_LAYOUTERROR_MAX)
return -EINVAL;
- data = nfs42_alloc_layouterror_data(lseg, GFP_KERNEL);
+ data = nfs42_alloc_layouterror_data(lseg, nfs_io_gfp_mask());
if (!data)
return -ENOMEM;
for (i = 0; i < n; i++) {
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index f089e11fd001..de318bb5d349 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1233,7 +1233,7 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo,
int status = 0;
*pcred = NULL;
- lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);
+ lrp = kzalloc(sizeof(*lrp), nfs_io_gfp_mask());
if (unlikely(lrp == NULL)) {
status = -ENOMEM;
spin_lock(&ino->i_lock);
@@ -2206,7 +2206,7 @@ _pnfs_grab_empty_layout(struct inode *ino, struct nfs_open_context *ctx)
struct pnfs_layout_hdr *lo;
spin_lock(&ino->i_lock);
- lo = pnfs_find_alloc_layout(ino, ctx, GFP_KERNEL);
+ lo = pnfs_find_alloc_layout(ino, ctx, nfs_io_gfp_mask());
if (!lo)
goto out_unlock;
if (!test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags))
@@ -2249,8 +2249,8 @@ static void _lgopen_prepare_attached(struct nfs4_opendata *data,
lo = _pnfs_grab_empty_layout(ino, ctx);
if (!lo)
return;
- lgp = pnfs_alloc_init_layoutget_args(ino, ctx, &current_stateid,
- &rng, GFP_KERNEL);
+ lgp = pnfs_alloc_init_layoutget_args(ino, ctx, &current_stateid, &rng,
+ nfs_io_gfp_mask());
if (!lgp) {
pnfs_clear_first_layoutget(lo);
nfs_layoutget_end(lo);
@@ -2275,8 +2275,8 @@ static void _lgopen_prepare_floating(struct nfs4_opendata *data,
};
struct nfs4_layoutget *lgp;
- lgp = pnfs_alloc_init_layoutget_args(ino, ctx, &current_stateid,
- &rng, GFP_KERNEL);
+ lgp = pnfs_alloc_init_layoutget_args(ino, ctx, &current_stateid, &rng,
+ nfs_io_gfp_mask());
if (!lgp)
return;
data->lgp = lgp;
@@ -2691,13 +2691,11 @@ pnfs_generic_pg_init_read(struct nfs_pageio_descriptor *pgio, struct nfs_page *r
else
rd_size = nfs_dreq_bytes_left(pgio->pg_dreq);
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- nfs_req_openctx(req),
- req_offset(req),
- rd_size,
- IOMODE_READ,
- false,
- GFP_KERNEL);
+ pgio->pg_lseg =
+ pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req),
+ req_offset(req), rd_size,
+ IOMODE_READ, false,
+ nfs_io_gfp_mask());
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
@@ -2718,13 +2716,10 @@ pnfs_generic_pg_init_write(struct nfs_pageio_descriptor *pgio,
pnfs_generic_pg_check_layout(pgio);
pnfs_generic_pg_check_range(pgio, req);
if (pgio->pg_lseg == NULL) {
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- nfs_req_openctx(req),
- req_offset(req),
- wb_size,
- IOMODE_RW,
- false,
- GFP_KERNEL);
+ pgio->pg_lseg =
+ pnfs_update_layout(pgio->pg_inode, nfs_req_openctx(req),
+ req_offset(req), wb_size, IOMODE_RW,
+ false, nfs_io_gfp_mask());
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
@@ -3183,7 +3178,7 @@ pnfs_layoutcommit_inode(struct inode *inode, bool sync)
status = -ENOMEM;
/* Note kzalloc ensures data->res.seq_res.sr_slot == NULL */
- data = kzalloc(sizeof(*data), GFP_NOFS);
+ data = kzalloc(sizeof(*data), nfs_io_gfp_mask());
if (!data)
goto clear_layoutcommitting;
@@ -3250,7 +3245,7 @@ struct nfs4_threshold *pnfs_mdsthreshold_alloc(void)
{
struct nfs4_threshold *thp;
- thp = kzalloc(sizeof(*thp), GFP_KERNEL);
+ thp = kzalloc(sizeof(*thp), nfs_io_gfp_mask());
if (!thp) {
dprintk("%s mdsthreshold allocation failed\n", __func__);
return NULL;