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NFSv4/pnfs: Give nfs4_proc_layoutreturn() a flags argument

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Replace the boolean in nfs4_proc_layoutreturn() with a set of flags that
will allow us to craft a version that is appropriate for reboot
recovery.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2024-06-13 01:00:53 -04:00 committed by Anna Schumaker
parent bbbff6d5ed
commit 42375c2bfa
3 changed files with 21 additions and 11 deletions
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8
fs/nfs/nfs4proc.c
View File

@ -10048,7 +10048,7 @@ static const struct rpc_call_ops nfs4_layoutreturn_call_ops = {
.rpc_release = nfs4_layoutreturn_release,
};
int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync)
int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, unsigned int flags)
{
struct rpc_task *task;
struct rpc_message msg = {
@ -10071,7 +10071,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync)
&task_setup_data.rpc_client, &msg);
lrp->inode = nfs_igrab_and_active(lrp->args.inode);
if (!sync) {
if (flags & PNFS_FL_LAYOUTRETURN_ASYNC) {
if (!lrp->inode) {
nfs4_layoutreturn_release(lrp);
return -EAGAIN;
@ -10079,6 +10079,8 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync)
task_setup_data.flags |= RPC_TASK_ASYNC;
}
if (!lrp->inode)
flags |= PNFS_FL_LAYOUTRETURN_PRIVILEGED;
if (flags & PNFS_FL_LAYOUTRETURN_PRIVILEGED)
nfs4_init_sequence(&lrp->args.seq_args, &lrp->res.seq_res, 1,
1);
else
@ -10087,7 +10089,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync)
task = rpc_run_task(&task_setup_data);
if (IS_ERR(task))
return PTR_ERR(task);
if (sync)
if (!(flags & PNFS_FL_LAYOUTRETURN_ASYNC))
status = task->tk_status;
trace_nfs4_layoutreturn(lrp->args.inode, &lrp->args.stateid, status);
dprintk("<-- %s status=%d\n", __func__, status);

18
fs/nfs/pnfs.c
View File

@ -1279,7 +1279,7 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo,
const nfs4_stateid *stateid,
const struct cred **pcred,
enum pnfs_iomode iomode,
bool sync)
unsigned int flags)
{
struct inode *ino = lo->plh_inode;
struct pnfs_layoutdriver_type *ld = NFS_SERVER(ino)->pnfs_curr_ld;
@ -1306,7 +1306,7 @@ pnfs_send_layoutreturn(struct pnfs_layout_hdr *lo,
if (ld->prepare_layoutreturn)
ld->prepare_layoutreturn(&lrp->args);
status = nfs4_proc_layoutreturn(lrp, sync);
status = nfs4_proc_layoutreturn(lrp, flags);
out:
dprintk("<-- %s status: %d\n", __func__, status);
return status;
@ -1340,7 +1340,8 @@ static void pnfs_layoutreturn_before_put_layout_hdr(struct pnfs_layout_hdr *lo)
spin_unlock(&inode->i_lock);
if (send) {
/* Send an async layoutreturn so we dont deadlock */
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false);
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode,
PNFS_FL_LAYOUTRETURN_ASYNC);
}
} else
spin_unlock(&inode->i_lock);
@ -1407,7 +1408,8 @@ _pnfs_return_layout(struct inode *ino)
send = pnfs_prepare_layoutreturn(lo, &stateid, &cred, NULL);
spin_unlock(&ino->i_lock);
if (send)
status = pnfs_send_layoutreturn(lo, &stateid, &cred, IOMODE_ANY, true);
status = pnfs_send_layoutreturn(lo, &stateid, &cred, IOMODE_ANY,
0);
out_wait_layoutreturn:
wait_on_bit(&lo->plh_flags, NFS_LAYOUT_RETURN, TASK_UNINTERRUPTIBLE);
out_put_layout_hdr:
@ -1548,7 +1550,7 @@ out_noroc:
return true;
}
if (layoutreturn)
pnfs_send_layoutreturn(lo, &stateid, &lc_cred, iomode, true);
pnfs_send_layoutreturn(lo, &stateid, &lc_cred, iomode, 0);
pnfs_put_layout_hdr(lo);
return false;
}
@ -2595,7 +2597,8 @@ pnfs_mark_layout_for_return(struct inode *inode,
return_now = pnfs_prepare_layoutreturn(lo, &stateid, &cred, &iomode);
spin_unlock(&inode->i_lock);
if (return_now)
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false);
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode,
PNFS_FL_LAYOUTRETURN_ASYNC);
} else {
spin_unlock(&inode->i_lock);
nfs_commit_inode(inode, 0);
@ -2711,7 +2714,8 @@ restart:
}
spin_unlock(&inode->i_lock);
rcu_read_unlock();
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode, false);
pnfs_send_layoutreturn(lo, &stateid, &cred, iomode,
PNFS_FL_LAYOUTRETURN_ASYNC);
pnfs_put_layout_hdr(lo);
cond_resched();
goto restart;

6
fs/nfs/pnfs.h
View File

@ -248,6 +248,9 @@ extern const struct pnfs_layoutdriver_type *pnfs_find_layoutdriver(u32 id);
extern void pnfs_put_layoutdriver(const struct pnfs_layoutdriver_type *ld);
/* nfs4proc.c */
#define PNFS_FL_LAYOUTRETURN_ASYNC (1U << 0)
#define PNFS_FL_LAYOUTRETURN_PRIVILEGED (1U << 1)
extern size_t max_response_pages(struct nfs_server *server);
extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
struct pnfs_device *dev,
@ -255,7 +258,8 @@ extern int nfs4_proc_getdeviceinfo(struct nfs_server *server,
extern struct pnfs_layout_segment *
nfs4_proc_layoutget(struct nfs4_layoutget *lgp,
struct nfs4_exception *exception);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp, bool sync);
extern int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp,
unsigned int flags);
/* pnfs.c */
void pnfs_get_layout_hdr(struct pnfs_layout_hdr *lo);