Btrfs: fix permissions of empty files not affected by umask
When a new file is created with btrfs_create(), the inode will initially be created with permissions 0666 and later on in btrfs_init_acl() it will be adapted to mask out the umask bits. The problem is that this change won't make it into the btrfs_inode unless there's another change to the inode (e.g. writing content changing the size or touching the file changing the mtime.) This fix adds a call to btrfs_update_inode() to btrfs_create() to make sure that the change will not get lost if the in-memory inode is flushed before other changes are made to the file. Signed-off-by: NFilipe Brandenburger <filbranden@google.com> Reviewed-by: NLiu Bo <bo.li.liu@oracle.com> Signed-off-by: NChris Mason <chris.mason@fusionio.com>
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