renumber-ext4_ex-flags

   1 ext4: renumber EXT4_EX_* flags to avoid flag aliasing problems
   2
   3 Suggested-by: Andreas Dilger <adilger@dilger.ca>
   4 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
   5 ---
   6  fs/ext4/ext4.h | 5 ++---
   7  1 file changed, 2 insertions(+), 3 deletions(-)
   8
   9 diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
  10 index 4855800..f70c3fc 100644
  11 --- a/fs/ext4/ext4.h
  12 +++ b/fs/ext4/ext4.h
  13 @@ -569,7 +569,6 @@ enum {
  14  #define EXT4_GET_BLOCKS_NO_PUT_HOLE            0x0200
  15         /* Convert written extents to unwritten */
  16  #define EXT4_GET_BLOCKS_CONVERT_UNWRITTEN      0x0400
  17 -/* DO NOT ASSIGN ADDITIONAL FLAG VALUES WITHOUT ADJUSTING THE FLAGS BELOW */
  18
  19  /*
  20   * The bit position of these flags must not overlap with any of the
  21 @@ -580,8 +579,8 @@ enum {
  22   * caching the extents when reading from the extent tree while a
  23   * truncate or punch hole operation is in progress.
  24   */
  25 -#define EXT4_EX_NOCACHE                                0x0800
  26 -#define EXT4_EX_FORCE_CACHE                    0x1000
  27 +#define EXT4_EX_NOCACHE                                0x40000000
  28 +#define EXT4_EX_FORCE_CACHE                    0x20000000
  29
  30  /*
  31   * Flags used by ext4_free_blocks