If the client needs to delay the layout callback, then speed up the recall
process by marking the remaining layout segments to be actively returned
by the client.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfs/callback_proc.c | 3 +++
fs/nfs/pnfs.c | 4 +++-
fs/nfs/pnfs.h | 3 +++
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 807eb6ef4f91..320f9d37eee2 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -184,6 +184,9 @@ static u32 initiate_file_draining(struct nfs_client *clp,
if (test_bit(NFS_LAYOUT_BULK_RECALL, &lo->plh_flags) ||
pnfs_mark_matching_lsegs_invalid(lo, &free_me_list,
&args->cbl_range)) {
+ pnfs_mark_matching_lsegs_return(lo,
+ &free_me_list,
+ &args->cbl_range);
rv = NFS4ERR_DELAY;
goto unlock;
}
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 113c3b327e24..cc50eaecd367 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1733,7 +1733,7 @@ out_forget_reply:
goto out;
}
-static void
+void
pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
struct pnfs_layout_range *return_range)
@@ -1745,6 +1745,8 @@ pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
if (list_empty(&lo->plh_segs))
return;
+ assert_spin_locked(&lo->plh_inode->i_lock);
+
list_for_each_entry_safe(lseg, next, &lo->plh_segs, pls_list)
if (should_free_lseg(&lseg->pls_range, return_range)) {
dprintk("%s: marking lseg %p iomode %d "
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 6916ff4e86f9..4ad4c5fb2e7d 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -265,6 +265,9 @@ int pnfs_choose_layoutget_stateid(nfs4_stateid *dst,
int pnfs_mark_matching_lsegs_invalid(struct pnfs_layout_hdr *lo,
struct list_head *tmp_list,
struct pnfs_layout_range *recall_range);
+void pnfs_mark_matching_lsegs_return(struct pnfs_layout_hdr *lo,
+ struct list_head *tmp_list,
+ struct pnfs_layout_range *recall_range);
bool pnfs_roc(struct inode *ino);
void pnfs_roc_release(struct inode *ino);
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
--
2.5.0
--
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