| commit | 83668e7141c7a0aa4035bde94344b81f9cf966ab | [log] [tgz] |
|---|---|---|
| author | Theodore Ts'o <tytso@mit.edu> | Mon Nov 08 13:45:33 2010 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Mon Nov 08 13:45:33 2010 -0500 |
| tree | 34d9fd52470b475d6e9d88ece8ca1ba80bf85a42 | |
| parent | f7ad6d2e9201a6e1c9ee6530a291452eb695feb8 [diff] [blame] |
ext4: fix potential race when freeing ext4_io_page structures Use an atomic_t and make sure we don't free the structure while we might still be submitting I/O for that page. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 670d134..6a5edea 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h
@@ -177,7 +177,7 @@ struct ext4_io_page { struct page *p_page; - int p_count; + atomic_t p_count; }; #define MAX_IO_PAGES 128