ath10k: rename ath10k_pci_hif_dump_area() to ath10k_pci_fw_crashed_dump()

[cascardo/linux.git] / mm / msync.c

diff --git a/mm/msync.c b/mm/msync.c
index 632df45..a5c6736 100644 (file)
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -58,6 +58,7 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
        vma = find_vma(mm, start);
        for (;;) {
                struct file *file;
+               loff_t fstart, fend;
 
                /* Still start < end. */
                error = -ENOMEM;
@@ -77,12 +78,17 @@ SYSCALL_DEFINE3(msync, unsigned long, start, size_t, len, int, flags)
                        goto out_unlock;
                }
                file = vma->vm_file;
+               fstart = start + ((loff_t)vma->vm_pgoff << PAGE_SHIFT);
+               fend = fstart + (min(end, vma->vm_end) - start) - 1;
                start = vma->vm_end;
                if ((flags & MS_SYNC) && file &&
                                (vma->vm_flags & VM_SHARED)) {
                        get_file(file);
                        up_read(&mm->mmap_sem);
-                       error = vfs_fsync(file, 0);
+                       if (vma->vm_flags & VM_NONLINEAR)
+                               error = vfs_fsync(file, 1);
+                       else
+                               error = vfs_fsync_range(file, fstart, fend, 1);
                        fput(file);
                        if (error || start >= end)
                                goto out;