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ext4: determine group descriptor size for 64bit feature

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If EXT4_FEATURE_INCOMPAT_64BIT is set, the descriptor can be read from
the superblocks, otherwise it defaults to 32.

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
This commit is contained in:
Stefan Brüns 2016-09-17 02:10:07 +02:00 • committed by Tom Rini
parent 3ee2f977f3
commit fc214ef909
2 changed files with 17 additions and 5 deletions
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2
include/ext4fs.h
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@ -87,6 +87,8 @@ struct ext_filesystem {
uint32_t inodesz;
/* Sectors per Block */
uint32_t sect_perblk;
/* Group Descriptor size */
uint16_t gdsize;
/* Group Descriptor Block Number */
uint32_t gdtable_blkno;
/* Total block groups of partition */