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-rw-r--r--fs/nfs/file.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 2f093ed1698..28b8c3f3cda 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -55,7 +55,7 @@ static ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
static int nfs_file_flush(struct file *, fl_owner_t id);
-static int nfs_file_fsync(struct file *, int datasync);
+static int nfs_file_fsync(struct file *, loff_t, loff_t, int datasync);
static int nfs_check_flags(int flags);
static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl);
static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl);
@@ -187,8 +187,11 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
filp->f_path.dentry->d_name.name,
offset, origin);
- /* origin == SEEK_END => we must revalidate the cached file length */
- if (origin == SEEK_END) {
+ /*
+ * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
+ * the cached file length
+ */
+ if (origin != SEEK_SET || origin != SEEK_CUR) {
struct inode *inode = filp->f_mapping->host;
int retval = nfs_revalidate_file_size(inode, filp);
@@ -305,7 +308,7 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
* fall back to doing a synchronous write.
*/
static int
-nfs_file_fsync(struct file *file, int datasync)
+nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
@@ -313,11 +316,15 @@ nfs_file_fsync(struct file *file, int datasync)
int have_error, status;
int ret = 0;
-
dprintk("NFS: fsync file(%s/%s) datasync %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
datasync);
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret)
+ return ret;
+ mutex_lock(&inode->i_mutex);
+
nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
status = nfs_commit_inode(inode, FLUSH_SYNC);
@@ -329,6 +336,7 @@ nfs_file_fsync(struct file *file, int datasync)
if (!ret && !datasync)
/* application has asked for meta-data sync */
ret = pnfs_layoutcommit_inode(inode, true);
+ mutex_unlock(&inode->i_mutex);
return ret;
}