Btrfs: avoid potential super block corruption

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The data in fs_info->super_for_commit are zeros before the
first transaction commit. If tree log sync and system crash
both occur before the first transaction commit, super block
will get corrupted.

This fixes it by properly filling in the super_for_commit field at
open time.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>

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Yan Zheng 2009-01-05 15:43:42 -05:00 • committed by Chris Mason

parent dd3fd8bdf7

commit 2d69a0f884

1 changed files with 3 additions and 1 deletions

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4

fs/btrfs/disk-io.c

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