Fix over-zealous flush_disk when changing device size.

[thirdparty/kernel/stable.git] / fs / inode.c

diff --git a/fs/inode.c b/fs/inode.c
index da85e56378f3e1d98c241901171e24e83882f189..c50d7feb87b1203b62df1f15d065d1dc109b6120 100644 (file)
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -540,11 +540,14 @@ void evict_inodes(struct super_block *sb)
 /**
  * invalidate_inodes   - attempt to free all inodes on a superblock
  * @sb:                superblock to operate on
+ * @kill_dirty: flag to guide handling of dirty inodes
  *
  * Attempts to free all inodes for a given superblock.  If there were any
  * busy inodes return a non-zero value, else zero.
+ * If @kill_dirty is set, discard dirty inodes too, otherwise treat
+ * them as busy.
  */
-int invalidate_inodes(struct super_block *sb)
+int invalidate_inodes(struct super_block *sb, bool kill_dirty)
 {
        int busy = 0;
        struct inode *inode, *next;
@@ -556,6 +559,10 @@ int invalidate_inodes(struct super_block *sb)
        list_for_each_entry_safe(inode, next, &sb->s_inodes, i_sb_list) {
                if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE))
                        continue;
+               if (inode->i_state & I_DIRTY && !kill_dirty) {
+                       busy = 1;
+                       continue;
+               }
                if (atomic_read(&inode->i_count)) {
                        busy = 1;
                        continue;