Btrfs: Do fsync log replay when mount -o ro, except when on readonly media

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fsync log replay can change the filesystem, so it cannot be delayed until
mount -o rw,remount, and it can't be forgotten entirely.  So, this patch
changes btrfs to do with reiserfs, ext3 and xfs do, which is to do the
log replay even when mounted readonly.

On a readonly device if log replay is required, the mount is aborted.

Getting all of this right had required fixing up some of the error
handling in open_ctree.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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This commit is contained in:

Chris Mason 2008-11-19 15:13:35 -05:00

parent d2c3f4f695

commit 7c2ca4682a

1 changed files with 23 additions and 8 deletions

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31

fs/btrfs/disk-io.c

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