block: Add Kconfig help which notes that ext4 needs CONFIG_LBD

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Theodore Ts'o 2009-01-06 15:16:33 -05:00
parent abda141892
commit 4d783b093c

View file

@ -36,6 +36,12 @@ config LBD
This option also enables support for single files larger than
2TB.
The ext4 filesystem requires that this feature be enabled in
order to support filesystems that have the huge_file feature
enabled. Otherwise, it will refuse to mount any filesystems
that use the huge_file feature, which is enabled by default
by mke2fs.ext4. The GFS2 filesystem also requires this feature.
If unsure, say N.
config BLK_DEV_IO_TRACE