On Oct 18, 2006  02:24 -0400, Theodore Ts'o wrote:
> On-disk format for large number of subdirectories
> 
> - EXT4_FEATURE_RO_COMPAT_DIR_NLINK (0x0020?) - allow directories to have
>   > 65000 subdirectories (i_nlinks) by setting i_nlinks = 1 for such
>   directories.  RO_COMPAT protects old filesystems from unlinking such
>   directories incorrectly and losing all files therein.  
> 
> Signed-off-by: "Theodore Ts'o" <[EMAIL PROTECTED]>

Looks good.  Will try to get a new patch out with this support.

> Index: e2fsprogs/lib/ext2fs/ext2_fs.h
> ===================================================================
> --- e2fsprogs.orig/lib/ext2fs/ext2_fs.h       2006-10-18 01:42:48.000000000 
> -0400
> +++ e2fsprogs/lib/ext2fs/ext2_fs.h    2006-10-18 01:49:51.000000000 -0400
> @@ -71,7 +71,7 @@
>  /*
>   * Maximal count of links to a file
>   */
> -#define EXT2_LINK_MAX                32000
> +#define EXT2_LINK_MAX                65000
>  
>  /*
>   * Macro-instructions used to manage several block sizes
> @@ -606,6 +606,7 @@
>  /* #define EXT2_FEATURE_RO_COMPAT_BTREE_DIR  0x0004 not used */
>  #define EXT4_FEATURE_RO_COMPAT_HUGE_FILE     0x0008
>  #define EXT4_FEATURE_RO_COMPAT_GDT_CSUM              0x0010
> +#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK     0x0020
>  
>  #define EXT2_FEATURE_INCOMPAT_COMPRESSION    0x0001
>  #define EXT2_FEATURE_INCOMPAT_FILETYPE               0x0002

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

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