[PATCH 3/8] cifs: don't use ->d_time

From: Miklos Szeredi
Date: Wed Jun 22 2016 - 10:35:45 EST


Use d_fsdata instead, which is the same size. Introduce helpers to hide
the typecasts.

Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx>
Cc: Steve French <sfrench@xxxxxxxxx>
---
fs/cifs/cifsfs.h | 10 ++++++++++
fs/cifs/dir.c | 6 +++---
fs/cifs/inode.c | 2 +-
3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 9dcf974acc47..c9c00a862036 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -41,6 +41,16 @@ cifs_uniqueid_to_ino_t(u64 fileid)

}

+static inline void cifs_set_time(struct dentry *dentry, unsigned long time)
+{
+ dentry->d_fsdata = (void *) time;
+}
+
+static inline unsigned long cifs_get_time(struct dentry *dentry)
+{
+ return (unsigned long) dentry->d_fsdata;
+}
+
extern struct file_system_type cifs_fs_type;
extern const struct address_space_operations cifs_addr_ops;
extern const struct address_space_operations cifs_addr_ops_smallbuf;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index c3eb998a99bd..49e13ecbdca9 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -40,7 +40,7 @@ renew_parental_timestamps(struct dentry *direntry)
/* BB check if there is a way to get the kernel to do this or if we
really need this */
do {
- direntry->d_time = jiffies;
+ cifs_set_time(direntry, jiffies);
direntry = direntry->d_parent;
} while (!IS_ROOT(direntry));
}
@@ -768,7 +768,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,

} else if (rc == -ENOENT) {
rc = 0;
- direntry->d_time = jiffies;
+ cifs_set_time(direntry, jiffies);
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
@@ -828,7 +828,7 @@ cifs_d_revalidate(struct dentry *direntry, unsigned int flags)
if (flags & (LOOKUP_CREATE | LOOKUP_RENAME_TARGET))
return 0;

- if (time_after(jiffies, direntry->d_time + HZ) || !lookupCacheEnabled)
+ if (time_after(jiffies, cifs_get_time(direntry) + HZ) || !lookupCacheEnabled)
return 0;

return 1;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 514dadb0575d..cc916adb49f0 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1933,7 +1933,7 @@ int cifs_revalidate_dentry_attr(struct dentry *dentry)

cifs_dbg(FYI, "Update attributes: %s inode 0x%p count %d dentry: 0x%p d_time %ld jiffies %ld\n",
full_path, inode, inode->i_count.counter,
- dentry, dentry->d_time, jiffies);
+ dentry, cifs_get_time(dentry), jiffies);

if (cifs_sb_master_tcon(CIFS_SB(sb))->unix_ext)
rc = cifs_get_inode_info_unix(&inode, full_path, sb, xid);
--
2.5.5