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authorChristoph Hellwig <hch@lst.de>2009-04-17 10:37:41 +0200
committerChris Mason <chris.mason@oracle.com>2009-06-10 11:29:52 -0400
commit6cbff00f4632c8060b06bfc9585805217f11e12e (patch)
tree1886c4c855662172b84be2bfbd2aa5ac6a5c429d /fs/btrfs/ctree.h
parentc289811cc096c57ff35550ee8132793a4f9b5b59 (diff)
downloadop-kernel-dev-6cbff00f4632c8060b06bfc9585805217f11e12e.zip
op-kernel-dev-6cbff00f4632c8060b06bfc9585805217f11e12e.tar.gz
Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION
Add support for the standard attributes set via chattr and read via lsattr. Currently we store the attributes in the flags value in the btrfs inode, but I wonder whether we should split it into two so that we don't have to keep converting between the two formats. Remove the btrfs_clear_flag/btrfs_set_flag/btrfs_test_flag macros as they were confusing the existing code and got in the way of the new additions. Also add the FS_IOC_GETVERSION ioctl for getting i_generation as it's trivial. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h16
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 5fa7d7d..4d6e0b6 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1115,12 +1115,14 @@ struct btrfs_root {
#define BTRFS_INODE_READONLY (1 << 2)
#define BTRFS_INODE_NOCOMPRESS (1 << 3)
#define BTRFS_INODE_PREALLOC (1 << 4)
-#define btrfs_clear_flag(inode, flag) (BTRFS_I(inode)->flags &= \
- ~BTRFS_INODE_##flag)
-#define btrfs_set_flag(inode, flag) (BTRFS_I(inode)->flags |= \
- BTRFS_INODE_##flag)
-#define btrfs_test_flag(inode, flag) (BTRFS_I(inode)->flags & \
- BTRFS_INODE_##flag)
+#define BTRFS_INODE_SYNC (1 << 5)
+#define BTRFS_INODE_IMMUTABLE (1 << 6)
+#define BTRFS_INODE_APPEND (1 << 7)
+#define BTRFS_INODE_NODUMP (1 << 8)
+#define BTRFS_INODE_NOATIME (1 << 9)
+#define BTRFS_INODE_DIRSYNC (1 << 10)
+
+
/* some macros to generate set/get funcs for the struct fields. This
* assumes there is a lefoo_to_cpu for every type, so lets make a simple
* one for u8:
@@ -2260,6 +2262,8 @@ int btrfs_cont_expand(struct inode *inode, loff_t size);
/* ioctl.c */
long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
+void btrfs_update_iflags(struct inode *inode);
+void btrfs_inherit_iflags(struct inode *inode, struct inode *dir);
/* file.c */
int btrfs_sync_file(struct file *file, struct dentry *dentry, int datasync);
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