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Btrfs: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION

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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>
This commit is contained in:
Christoph Hellwig 2009-04-17 10:37:41 +02:00 • committed by Chris Mason
parent c289811cc0
commit 6cbff00f46
5 changed files with 200 additions and 21 deletions
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1
fs/btrfs/btrfs_inode.h
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@ -157,5 +157,4 @@ static inline void btrfs_i_size_write(struct inode *inode, u64 size)
BTRFS_I(inode)->disk_i_size = size;
}
#endif