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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-07-06 16:32:31 +0530
committerEric Van Hensbergen <ericvh@gmail.com>2011-07-23 09:32:50 -0500
commited80fcfac2565fa866d93ba14f0e75de17a8223e (patch)
tree504a4efb5377bc5d8e9ff3a8eb45bb2b00303b93 /fs/9p/v9fs.h
parent4d63055fa9657aa402da25575045c23f37c3da05 (diff)
downloadop-kernel-dev-ed80fcfac2565fa866d93ba14f0e75de17a8223e.zip
op-kernel-dev-ed80fcfac2565fa866d93ba14f0e75de17a8223e.tar.gz
fs/9p: Always ask new inode in create
This make sure we don't end up reusing the unlinked inode object. The ideal way is to use inode i_generation. But i_generation is not available in userspace always. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/v9fs.h')
-rw-r--r--fs/9p/v9fs.h27
1 files changed, 23 insertions, 4 deletions
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index 5d7392e..e78956c 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -153,13 +153,13 @@ extern void v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd,
void *p);
extern struct inode *v9fs_inode_from_fid(struct v9fs_session_info *v9ses,
struct p9_fid *fid,
- struct super_block *sb);
+ struct super_block *sb, int new);
extern const struct inode_operations v9fs_dir_inode_operations_dotl;
extern const struct inode_operations v9fs_file_inode_operations_dotl;
extern const struct inode_operations v9fs_symlink_inode_operations_dotl;
extern struct inode *v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses,
struct p9_fid *fid,
- struct super_block *sb);
+ struct super_block *sb, int new);
/* other default globals */
#define V9FS_PORT 564
@@ -201,8 +201,27 @@ v9fs_get_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
struct super_block *sb)
{
if (v9fs_proto_dotl(v9ses))
- return v9fs_inode_from_fid_dotl(v9ses, fid, sb);
+ return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 0);
else
- return v9fs_inode_from_fid(v9ses, fid, sb);
+ return v9fs_inode_from_fid(v9ses, fid, sb, 0);
}
+
+/**
+ * v9fs_get_new_inode_from_fid - Helper routine to populate an inode by
+ * issuing a attribute request
+ * @v9ses: session information
+ * @fid: fid to issue attribute request for
+ * @sb: superblock on which to create inode
+ *
+ */
+static inline struct inode *
+v9fs_get_new_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+ struct super_block *sb)
+{
+ if (v9fs_proto_dotl(v9ses))
+ return v9fs_inode_from_fid_dotl(v9ses, fid, sb, 1);
+ else
+ return v9fs_inode_from_fid(v9ses, fid, sb, 1);
+}
+
#endif
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