Btrfs: fix several potential problems in copy_nocow_pages_for_inode

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- It makes no sense that we deal with a inode in the dead tree.
- fix the race between dio and page copy by waiting the dio completion
- avoid the page copy vs truncate/punch hole
- check if the page is in the page cache or not

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

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Miao Xie 2013-06-27 18:51:00 +08:00 • committed by Josef Bacik

parent 826aa0a82c

commit edd1400be9

1 changed files with 22 additions and 1 deletions

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fs/btrfs/scrub.c

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