[MIPS] IRIX: Fix off-by-one error in signal compat code.

[linux-2.6-omap-h63xx.git] / mm / page-writeback.c

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bcdbbf6c4a85e727de84a6df9f5cb02958fffe44..838a5e31394cbbbe0e9a34b66e1570cf03b5bb86 100644 (file)
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -37,7 +37,7 @@
 
 /*
  * The maximum number of pages to writeout in a single bdflush/kupdate
- * operation.  We do this so we don't hold I_LOCK against an inode for
+ * operation.  We do this so we don't hold I_SYNC against an inode for
  * enormous amounts of time, which would block a userspace task which has
  * been forced to throttle against that inode.  Also, the code reevaluates
  * the dirty each time it has written this many pages.
@@ -502,16 +502,6 @@ void throttle_vm_writeout(gfp_t gfp_mask)
        long background_thresh;
        long dirty_thresh;
 
-       if ((gfp_mask & (__GFP_FS|__GFP_IO)) != (__GFP_FS|__GFP_IO)) {
-               /*
-                * The caller might hold locks which can prevent IO completion
-                * or progress in the filesystem.  So we cannot just sit here
-                * waiting for IO to complete.
-                */
-               congestion_wait(WRITE, HZ/10);
-               return;
-       }
-
         for ( ; ; ) {
                get_dirty_limits(&background_thresh, &dirty_thresh, NULL, NULL);
 
@@ -525,6 +515,14 @@ void throttle_vm_writeout(gfp_t gfp_mask)
                        global_page_state(NR_WRITEBACK) <= dirty_thresh)
                                break;
                 congestion_wait(WRITE, HZ/10);
+
+               /*
+                * The caller might hold locks which can prevent IO completion
+                * or progress in the filesystem.  So we cannot just sit here
+                * waiting for IO to complete.
+                */
+               if ((gfp_mask & (__GFP_FS|__GFP_IO)) != (__GFP_FS|__GFP_IO))
+                       break;
         }
 }
 
@@ -991,7 +989,7 @@ int __set_page_dirty_no_writeback(struct page *page)
  * mapping is pinned by the vma's ->vm_file reference.
  *
  * We take care to handle the case where the page was truncated from the
- * mapping by re-checking page_mapping() insode tree_lock.
+ * mapping by re-checking page_mapping() inside tree_lock.
  */
 int __set_page_dirty_nobuffers(struct page *page)
 {