[PATCH] Btrfs: Fix NOCOW file attribute
From: Andrei Popa <hidden>
Date: 2012-06-16 12:38:34
Subsystem:
btrfs file system, filesystems (vfs and infrastructure), the rest · Maintainers:
Chris Mason, David Sterba, Alexander Viro, Christian Brauner, Linus Torvalds
Adds BTRFS_INODE_NODATASUM to inode flags when setting NOCOW for a file (chattr +C file). In btrfs, NOCOW implies NODATASUM and without setting NODATASUM, btrfs doesn't honour correctly the NOCOW attribute. Signed-off-by: Andrei Popa <redacted> --- fs/btrfs/ioctl.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 0e92e57..8a7be76 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c@@ -139,7 +139,7 @@ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir) } if (flags & BTRFS_INODE_NODATACOW) - BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW; + BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW | BTRFS_INODE_NODATASUM; btrfs_update_iflags(inode); }
@@ -236,7 +236,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) else ip->flags &= ~BTRFS_INODE_DIRSYNC; if (flags & FS_NOCOW_FL) - ip->flags |= BTRFS_INODE_NODATACOW; + ip->flags |= BTRFS_INODE_NODATACOW | BTRFS_INODE_NODATASUM; else ip->flags &= ~BTRFS_INODE_NODATACOW;
--
1.7.3.4