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authorAl Viro <viro@zeniv.linux.org.uk>2013-03-02 01:48:30 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2013-03-02 01:48:30 +0100
commitdd37978c50bc8b354e5c4633f69387f16572fdac (patch)
treed233c7027f26869485f96556cc9cddacbb3a8f2d /include
parent9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry (diff)
downloadlinux-dd37978c50bc8b354e5c4633f69387f16572fdac.tar.xz
linux-dd37978c50bc8b354e5c4633f69387f16572fdac.zip
cache the value of file_inode() in struct file
Note that this thing does *not* contribute to inode refcount; it's pinned down by dentry. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4e686a099465..74a907b8b950 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -769,6 +769,7 @@ struct file {
} f_u;
struct path f_path;
#define f_dentry f_path.dentry
+ struct inode *f_inode; /* cached value */
const struct file_operations *f_op;
/*
@@ -2217,7 +2218,7 @@ static inline bool execute_ok(struct inode *inode)
static inline struct inode *file_inode(struct file *f)
{
- return f->f_path.dentry->d_inode;
+ return f->f_inode;
}
/*