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-rw-r--r--include/linux/backing-dev.h1
-rw-r--r--include/linux/nfs_fs.h1
-rw-r--r--include/linux/nfs_fs_sb.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 7011d6255593..f2542c24b328 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -93,6 +93,7 @@ static inline int bdi_rw_congested(struct backing_dev_info *bdi)
void clear_bdi_congested(struct backing_dev_info *bdi, int rw);
void set_bdi_congested(struct backing_dev_info *bdi, int rw);
long congestion_wait(int rw, long timeout);
+long congestion_wait_interruptible(int rw, long timeout);
void congestion_end(int rw);
#define bdi_cap_writeback_dirty(bdi) \
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 47aaa2c66738..e9ae0c6e2c62 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -415,6 +415,7 @@ extern void nfs_complete_unlink(struct dentry *);
/*
* linux/fs/nfs/write.c
*/
+extern int nfs_congestion_kb;
extern int nfs_writepage(struct page *page, struct writeback_control *wbc);
extern int nfs_writepages(struct address_space *, struct writeback_control *);
extern int nfs_flush_incompatible(struct file *file, struct page *page);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 95796e6924f1..c95d5e642548 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -82,6 +82,7 @@ struct nfs_server {
struct rpc_clnt * client_acl; /* ACL RPC client handle */
struct nfs_iostats * io_stats; /* I/O statistics */
struct backing_dev_info backing_dev_info;
+ atomic_t writeback; /* number of writeback pages */
int flags; /* various flags */
unsigned int caps; /* server capabilities */
unsigned int rsize; /* read size */