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| author | Jeff Layton <jlayton@redhat.com> | 2010-10-28 19:16:44 +0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-11-02 22:20:23 +0300 |
| commit | b647c35f77af9c07d336247b23014596e9f0a593 (patch) | |
| tree | 653949250681fd1c23ad529b631da793f95778a6 /fs/cifs/cifs_fs_sb.h | |
| parent | 413e661c136c52290de1ee19a1b049a4da9dbf51 (diff) | |
| download | linux-b647c35f77af9c07d336247b23014596e9f0a593.tar.xz | |
cifs: convert tlink_tree to a rbtree
Radix trees are ideal when you want to track a bunch of pointers and
can't embed a tracking structure within the target of those pointers.
The tradeoff is an increase in memory, particularly if the tree is
sparse.
In CIFS, we use the tlink_tree to track tcon_link structs. A tcon_link
can never be in more than one tlink_tree, so there's no impediment to
using a rb_tree here instead of a radix tree.
Convert the new multiuser mount code to use a rb_tree instead. This
should reduce the memory required to manage the tlink_tree.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/cifs_fs_sb.h')
| -rw-r--r-- | fs/cifs/cifs_fs_sb.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h index 79576dac336f..e9a393c9c2ca 100644 --- a/fs/cifs/cifs_fs_sb.h +++ b/fs/cifs/cifs_fs_sb.h @@ -15,7 +15,7 @@ * the GNU Lesser General Public License for more details. * */ -#include <linux/radix-tree.h> +#include <linux/rbtree.h> #ifndef _CIFS_FS_SB_H #define _CIFS_FS_SB_H @@ -42,7 +42,7 @@ #define CIFS_MOUNT_MULTIUSER 0x20000 /* multiuser mount */ struct cifs_sb_info { - struct radix_tree_root tlink_tree; + struct rb_root tlink_tree; spinlock_t tlink_tree_lock; struct tcon_link *master_tlink; struct nls_table *local_nls; |