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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:37 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:37 -0500
commit5db3a7b2cabe8f0957683f798c4f8fa8605f9ebb (patch)
tree969aa2e7561796b3b8796a2f6645693f7ebe8d20 /fs/nfs
parenta8881f5a5c723f82da84b786d3ca83a0df9e0c33 (diff)
NFS: Debugging code for nfs_direct_(read|write)_schedule()
Make sure that we're doing our list accounting correctly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/direct.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index e6585b9ff45a..1e3725e51df1 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -339,6 +339,7 @@ static void nfs_direct_read_schedule(struct nfs_direct_req *dreq)
339 if (count < rsize) 339 if (count < rsize)
340 bytes = count; 340 bytes = count;
341 341
342 BUG_ON(list_empty(list));
342 data = list_entry(list->next, struct nfs_read_data, pages); 343 data = list_entry(list->next, struct nfs_read_data, pages);
343 list_del_init(&data->pages); 344 list_del_init(&data->pages);
344 345
@@ -378,6 +379,7 @@ static void nfs_direct_read_schedule(struct nfs_direct_req *dreq)
378 379
379 count -= bytes; 380 count -= bytes;
380 } while (count != 0); 381 } while (count != 0);
382 BUG_ON(!list_empty(list));
381} 383}
382 384
383static ssize_t nfs_direct_read(struct kiocb *iocb, unsigned long user_addr, size_t count, loff_t pos, struct page **pages, unsigned int nr_pages) 385static ssize_t nfs_direct_read(struct kiocb *iocb, unsigned long user_addr, size_t count, loff_t pos, struct page **pages, unsigned int nr_pages)
@@ -657,6 +659,7 @@ static void nfs_direct_write_schedule(struct nfs_direct_req *dreq, int sync)
657 if (count < wsize) 659 if (count < wsize)
658 bytes = count; 660 bytes = count;
659 661
662 BUG_ON(list_empty(list));
660 data = list_entry(list->next, struct nfs_write_data, pages); 663 data = list_entry(list->next, struct nfs_write_data, pages);
661 list_move_tail(&data->pages, &dreq->rewrite_list); 664 list_move_tail(&data->pages, &dreq->rewrite_list);
662 665
@@ -697,6 +700,7 @@ static void nfs_direct_write_schedule(struct nfs_direct_req *dreq, int sync)
697 700
698 count -= bytes; 701 count -= bytes;
699 } while (count != 0); 702 } while (count != 0);
703 BUG_ON(!list_empty(list));
700} 704}
701 705
702static ssize_t nfs_direct_write(struct kiocb *iocb, unsigned long user_addr, size_t count, loff_t pos, struct page **pages, int nr_pages) 706static ssize_t nfs_direct_write(struct kiocb *iocb, unsigned long user_addr, size_t count, loff_t pos, struct page **pages, int nr_pages)