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Btrfs: Disable sysfs files on older kernels 

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2008-02-20 16:02:51 -05:00
parent 2e1a992e31
commit 55d4741489
1 changed files with 34 additions and 0 deletions
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34
fs/btrfs/sysfs.c
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@ -28,6 +28,7 @@
#include "disk-io.h"
#include "transaction.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
static ssize_t root_blocks_used_show(struct btrfs_root *root, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%llu\n",
@ -265,3 +266,36 @@ void btrfs_exit_sysfs()
{
kset_unregister(btrfs_kset);
}
#else
int btrfs_sysfs_add_super(struct btrfs_fs_info *fs)
{
return 0;
}
int btrfs_sysfs_add_root(struct btrfs_root *root)
{
return 0;
}
void btrfs_sysfs_del_root(struct btrfs_root *root)
{
return;
}
void btrfs_sysfs_del_super(struct btrfs_fs_info *fs)
{
return;
}
int btrfs_init_sysfs()
{
return 0;
}
void btrfs_exit_sysfs()
{
return;
}
#endif