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| author | Filipe Brandenburger <filbranden@google.com> | 2012-11-30 03:40:08 +0000 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-12-16 20:46:28 -0500 |
| commit | 9185aa587b7425f8f4520da2e66792f5f3c2b815 (patch) | |
| tree | 33ec92228186bbb37215a7e8db2c2a4519b102ad /fs | |
| parent | 31e502298d80e2af9001d17dc419a3fd4b0bebef (diff) | |
| download | blackbird-op-linux-9185aa587b7425f8f4520da2e66792f5f3c2b815.tar.gz blackbird-op-linux-9185aa587b7425f8f4520da2e66792f5f3c2b815.zip | |
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: Filipe Brandenburger <filbranden@google.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/inode.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 1673dbdf1f76..2e6918c85b72 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5041,6 +5041,10 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry, if (err) goto out_unlock; + err = btrfs_update_inode(trans, root, inode); + if (err) + goto out_unlock; + /* * If the active LSM wants to access the inode during * d_instantiate it needs these. Smack checks to see |
