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Diffstat (limited to 'fs/nfs/filelayout/filelayout.c')
-rw-r--r--fs/nfs/filelayout/filelayout.c151
1 files changed, 96 insertions, 55 deletions
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 44347f4bdc15..acd30baca461 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -202,10 +202,10 @@ static int filelayout_async_handle_error(struct rpc_task *task,
task->tk_status);
nfs4_mark_deviceid_unavailable(devid);
pnfs_error_mark_layout_for_return(inode, lseg);
- pnfs_set_lo_fail(lseg);
rpc_wake_up(&tbl->slot_tbl_waitq);
/* fall through */
default:
+ pnfs_set_lo_fail(lseg);
reset:
dprintk("%s Retry through MDS. Error %d\n", __func__,
task->tk_status);
@@ -560,6 +560,50 @@ filelayout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
return PNFS_ATTEMPTED;
}
+static int
+filelayout_check_deviceid(struct pnfs_layout_hdr *lo,
+ struct nfs4_filelayout_segment *fl,
+ gfp_t gfp_flags)
+{
+ struct nfs4_deviceid_node *d;
+ struct nfs4_file_layout_dsaddr *dsaddr;
+ int status = -EINVAL;
+
+ /* find and reference the deviceid */
+ d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), &fl->deviceid,
+ lo->plh_lc_cred, gfp_flags);
+ if (d == NULL)
+ goto out;
+
+ dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
+ /* Found deviceid is unavailable */
+ if (filelayout_test_devid_unavailable(&dsaddr->id_node))
+ goto out_put;
+
+ fl->dsaddr = dsaddr;
+
+ if (fl->first_stripe_index >= dsaddr->stripe_count) {
+ dprintk("%s Bad first_stripe_index %u\n",
+ __func__, fl->first_stripe_index);
+ goto out_put;
+ }
+
+ if ((fl->stripe_type == STRIPE_SPARSE &&
+ fl->num_fh > 1 && fl->num_fh != dsaddr->ds_num) ||
+ (fl->stripe_type == STRIPE_DENSE &&
+ fl->num_fh != dsaddr->stripe_count)) {
+ dprintk("%s num_fh %u not valid for given packing\n",
+ __func__, fl->num_fh);
+ goto out_put;
+ }
+ status = 0;
+out:
+ return status;
+out_put:
+ nfs4_fl_put_deviceid(dsaddr);
+ goto out;
+}
+
/*
* filelayout_check_layout()
*
@@ -572,11 +616,8 @@ static int
filelayout_check_layout(struct pnfs_layout_hdr *lo,
struct nfs4_filelayout_segment *fl,
struct nfs4_layoutget_res *lgr,
- struct nfs4_deviceid *id,
gfp_t gfp_flags)
{
- struct nfs4_deviceid_node *d;
- struct nfs4_file_layout_dsaddr *dsaddr;
int status = -EINVAL;
dprintk("--> %s\n", __func__);
@@ -601,41 +642,10 @@ filelayout_check_layout(struct pnfs_layout_hdr *lo,
goto out;
}
- /* find and reference the deviceid */
- d = nfs4_find_get_deviceid(NFS_SERVER(lo->plh_inode), id,
- lo->plh_lc_cred, gfp_flags);
- if (d == NULL)
- goto out;
-
- dsaddr = container_of(d, struct nfs4_file_layout_dsaddr, id_node);
- /* Found deviceid is unavailable */
- if (filelayout_test_devid_unavailable(&dsaddr->id_node))
- goto out_put;
-
- fl->dsaddr = dsaddr;
-
- if (fl->first_stripe_index >= dsaddr->stripe_count) {
- dprintk("%s Bad first_stripe_index %u\n",
- __func__, fl->first_stripe_index);
- goto out_put;
- }
-
- if ((fl->stripe_type == STRIPE_SPARSE &&
- fl->num_fh > 1 && fl->num_fh != dsaddr->ds_num) ||
- (fl->stripe_type == STRIPE_DENSE &&
- fl->num_fh != dsaddr->stripe_count)) {
- dprintk("%s num_fh %u not valid for given packing\n",
- __func__, fl->num_fh);
- goto out_put;
- }
-
status = 0;
out:
dprintk("--> %s returns %d\n", __func__, status);
return status;
-out_put:
- nfs4_fl_put_deviceid(dsaddr);
- goto out;
}
static void _filelayout_free_lseg(struct nfs4_filelayout_segment *fl)
@@ -657,7 +667,6 @@ static int
filelayout_decode_layout(struct pnfs_layout_hdr *flo,
struct nfs4_filelayout_segment *fl,
struct nfs4_layoutget_res *lgr,
- struct nfs4_deviceid *id,
gfp_t gfp_flags)
{
struct xdr_stream stream;
@@ -682,9 +691,9 @@ filelayout_decode_layout(struct pnfs_layout_hdr *flo,
if (unlikely(!p))
goto out_err;
- memcpy(id, p, sizeof(*id));
+ memcpy(&fl->deviceid, p, sizeof(fl->deviceid));
p += XDR_QUADLEN(NFS4_DEVICEID4_SIZE);
- nfs4_print_deviceid(id);
+ nfs4_print_deviceid(&fl->deviceid);
nfl_util = be32_to_cpup(p++);
if (nfl_util & NFL4_UFLG_COMMIT_THRU_MDS)
@@ -831,15 +840,14 @@ filelayout_alloc_lseg(struct pnfs_layout_hdr *layoutid,
{
struct nfs4_filelayout_segment *fl;
int rc;
- struct nfs4_deviceid id;
dprintk("--> %s\n", __func__);
fl = kzalloc(sizeof(*fl), gfp_flags);
if (!fl)
return NULL;
- rc = filelayout_decode_layout(layoutid, fl, lgr, &id, gfp_flags);
- if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, &id, gfp_flags)) {
+ rc = filelayout_decode_layout(layoutid, fl, lgr, gfp_flags);
+ if (rc != 0 || filelayout_check_layout(layoutid, fl, lgr, gfp_flags)) {
_filelayout_free_lseg(fl);
return NULL;
}
@@ -888,18 +896,51 @@ filelayout_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
return min(stripe_unit - (unsigned int)stripe_offset, size);
}
+static struct pnfs_layout_segment *
+fl_pnfs_update_layout(struct inode *ino,
+ struct nfs_open_context *ctx,
+ loff_t pos,
+ u64 count,
+ enum pnfs_iomode iomode,
+ bool strict_iomode,
+ gfp_t gfp_flags)
+{
+ struct pnfs_layout_segment *lseg = NULL;
+ struct pnfs_layout_hdr *lo;
+ struct nfs4_filelayout_segment *fl;
+ int status;
+
+ lseg = pnfs_update_layout(ino, ctx, pos, count, iomode, strict_iomode,
+ gfp_flags);
+ if (!lseg)
+ lseg = ERR_PTR(-ENOMEM);
+ if (IS_ERR(lseg))
+ goto out;
+
+ lo = NFS_I(ino)->layout;
+ fl = FILELAYOUT_LSEG(lseg);
+
+ status = filelayout_check_deviceid(lo, fl, gfp_flags);
+ if (status)
+ lseg = ERR_PTR(status);
+out:
+ if (IS_ERR(lseg))
+ pnfs_put_lseg(lseg);
+ return lseg;
+}
+
static void
filelayout_pg_init_read(struct nfs_pageio_descriptor *pgio,
struct nfs_page *req)
{
if (!pgio->pg_lseg) {
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- req->wb_context,
- 0,
- NFS4_MAX_UINT64,
- IOMODE_READ,
- false,
- GFP_KERNEL);
+ pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,
+ req->wb_context,
+ 0,
+ NFS4_MAX_UINT64,
+ IOMODE_READ,
+ false,
+ GFP_KERNEL);
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
@@ -919,13 +960,13 @@ filelayout_pg_init_write(struct nfs_pageio_descriptor *pgio,
int status;
if (!pgio->pg_lseg) {
- pgio->pg_lseg = pnfs_update_layout(pgio->pg_inode,
- req->wb_context,
- 0,
- NFS4_MAX_UINT64,
- IOMODE_RW,
- false,
- GFP_NOFS);
+ pgio->pg_lseg = fl_pnfs_update_layout(pgio->pg_inode,
+ req->wb_context,
+ 0,
+ NFS4_MAX_UINT64,
+ IOMODE_RW,
+ false,
+ GFP_NOFS);
if (IS_ERR(pgio->pg_lseg)) {
pgio->pg_error = PTR_ERR(pgio->pg_lseg);
pgio->pg_lseg = NULL;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-15 08:37:39 +0100