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fs/ext2: bump journal overhead to 1300 blocks

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A quick test with a ~3.5MB ext4 filesystem shows that 1081 blocks isn't
enough:

tune2fs 1.42.7 (21-Jan-2013)

Please run e2fsck on the filesystem.

Creating journal inode:
Journal size too big for filesystem.

So bump it a bit. Overestimating the journal size is probably not really
a big deal for the kind of systems using ext3/4 anyway.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Peter Korsgaard 2013-04-12 14:57:36 +02:00
parent a2a266e0cf
commit 0fab0a4afd
1 changed files with 3 additions and 6 deletions
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9
fs/ext2/genext2fs.sh
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@ -34,14 +34,11 @@ then
# we scale inodes / blocks with 10% to compensate for bitmaps size + slack
BLOCKS=$(du -s -c -k $TARGET_DIR | grep total | sed -e "s/total//")
BLOCKS=$(expr 500 + \( $BLOCKS + $INODES / 8 \) \* 11 / 10)
# we add 1081 blocks (a bit more than 1 MiB, assuming 1KiB blocks) for
# we add 1300 blocks (a bit more than 1 MiB, assuming 1KiB blocks) for
# the journal if ext3/4
# Note: I came to 1081 blocks after trial-and-error checks. With 1080 or
# less additional blocks, and tune2fs would refuse to add the journal;
# with 1081 additional blocks or above, tune2fs wil happily add a journal.
# YMMV.
# Note: I came to 1300 blocks after trial-and-error checks. YMMV.
if [ ${GEN} -ge 3 ]; then
BLOCKS=$(expr 1081 + $BLOCKS )
BLOCKS=$(expr 1300 + $BLOCKS )
fi
set -- $@ -b $BLOCKS
fi