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9aee228607
linux/fs/ext4
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Toshiyuki Okajima 9aee228607 ext4: fix dx_map_entry to support 256k directory blocks 
The dx_map_entry structure doesn't support over 64KB block size by
current usage of its member("offs"). Because "offs" treats an offset
of copies of the ext4_dir_entry_2 structure as is. This member size is
16 bits. But real offset for over 64KB(256KB) block size needs 18
bits. However, real offset keeps 4 byte boundary, so lower 2 bits is
not used.

Therefore, we do the following to fix this limitation:
For "store": 
	we divide the real offset by 4 and then store this result to "offs" 
	member.
For "use":
	we multiply "offs" member by 4 and then use this result 
	as real offset.

Signed-off-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-06-08 12:41:35 -04:00
..
acl.c New helper - current_umask() 2009-03-31 23:00:26 -04:00
acl.h ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
balloc.c ext4: Convert ext4_lock_group to use sb_bgl_lock 2009-05-02 20:35:09 -04:00
bitmap.c ext4: Change unsigned long to unsigned int 2008-11-05 00:14:04 -05:00
block_validity.c ext4: Add a comprehensive block validity check to ext4_get_blocks() 2009-05-17 15:38:01 -04:00
dir.c ext4: Define a new set of flags for ext4_get_blocks() 2009-05-14 00:58:52 -04:00
ext4_extents.h ext4: Validate extent details only when read from the disk 2009-03-27 16:39:58 -04:00
ext4_jbd2.c ext4: Allow ext4 to run without a journal 2009-01-07 00:06:22 -05:00
ext4_jbd2.h ext4: Remove "extents" mount option 2009-01-06 14:53:16 -05:00
ext4.h ext4: Get rid of EXTEND_DISKSIZE flag of ext4_get_blocks_handle() 2009-06-09 00:17:05 -04:00
extents.c ext4: Get rid of EXTEND_DISKSIZE flag of ext4_get_blocks_handle() 2009-06-09 00:17:05 -04:00
file.c ext4: Fix discard of inode prealloc space with delayed allocation. 2009-03-27 22:36:43 -04:00
fsync.c ext4: Add debugging markers that can be used by systemtap 2008-10-05 20:50:06 -04:00
hash.c ext4: Add support for non-native signed/unsigned htree hash algorithms 2008-10-28 13:21:44 -04:00
ialloc.c ext4: Clean up calls to ext4_get_group_desc() 2009-05-25 11:50:39 -04:00
inode.c ext4: Avoid leaking blocks after a block allocation failure 2009-06-05 01:00:26 -04:00
ioctl.c ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl 2009-02-26 01:04:07 -05:00
Kconfig trivial: fix typos/grammar errors in Kconfig texts 2009-03-30 15:22:01 +02:00
Makefile ext4: Add a comprehensive block validity check to ext4_get_blocks() 2009-05-17 15:38:01 -04:00
mballoc.c ext4: Add a comprehensive block validity check to ext4_get_blocks() 2009-05-17 15:38:01 -04:00
mballoc.h ext4: Move fs/ext4/group.h into ext4.h 2009-05-01 19:44:44 -04:00
migrate.c ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling 2009-02-15 20:02:19 -05:00
namei.c ext4: fix dx_map_entry to support 256k directory blocks 2009-06-08 12:41:35 -04:00
resize.c ext4: Move fs/ext4/group.h into ext4.h 2009-05-01 19:44:44 -04:00
super.c ext4: Change all super.c messages to print the device 2009-06-04 17:36:36 -04:00
symlink.c ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
xattr_security.c ext4: move headers out of include/linux 2008-04-29 18:13:32 -04:00
xattr_trusted.c ext4: remove double definitions of xattr macros 2008-07-11 19:27:31 -04:00
xattr_user.c ext4: remove double definitions of xattr macros 2008-07-11 19:27:31 -04:00
xattr.c ext4: Use lowercase names of quota functions 2009-03-26 02:18:36 +01:00
xattr.h ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00