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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:27 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:19 +1100
commit621e155a3591962420eacdd39f6f0aa29ceb221e (patch)
tree387a9fb396f1bf24514b712c294182e36ba51076 /include/linux/ncp_fs.h
parentfb2d5b86aff355a27ebfc132d3c99f4a940cc3fe (diff)
fs: change d_compare for rcu-walk
Change d_compare so it may be called from lock-free RCU lookups. This does put significant restrictions on what may be done from the callback, however there don't seem to have been any problems with in-tree fses. If some strange use case pops up that _really_ cannot cope with the rcu-walk rules, we can just add new rcu-unaware callbacks, which would cause name lookup to drop out of rcu-walk mode. For in-tree filesystems, this is just a mechanical change. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'include/linux/ncp_fs.h')
-rw-r--r--include/linux/ncp_fs.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/ncp_fs.h b/include/linux/ncp_fs.h
index ef663061d5ac..1c27f201c856 100644
--- a/include/linux/ncp_fs.h
+++ b/include/linux/ncp_fs.h
@@ -184,13 +184,13 @@ struct ncp_entry_info {
__u8 file_handle[6];
};
-static inline struct ncp_server *NCP_SBP(struct super_block *sb)
+static inline struct ncp_server *NCP_SBP(const struct super_block *sb)
{
return sb->s_fs_info;
}
#define NCP_SERVER(inode) NCP_SBP((inode)->i_sb)
-static inline struct ncp_inode_info *NCP_FINFO(struct inode *inode)
+static inline struct ncp_inode_info *NCP_FINFO(const struct inode *inode)
{
return container_of(inode, struct ncp_inode_info, vfs_inode);
}