[PATCH v2 1/9] ima: Rename backing_inode to real_inode

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Rename the backing_inode variable to real_inode since it gets its value
from real_inode().

Suggested-by: Amir Goldstein <amir73il@xxxxxxxxx>
Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
---
 security/integrity/ima/ima_main.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index cc1217ac2c6f..f1a01d32b92a 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -208,7 +208,7 @@ static int process_measurement(struct file *file, const struct cred *cred,
 			       u32 secid, char *buf, loff_t size, int mask,
 			       enum ima_hooks func)
 {
-	struct inode *backing_inode, *inode = file_inode(file);
+	struct inode *real_inode, *inode = file_inode(file);
 	struct integrity_iint_cache *iint = NULL;
 	struct ima_template_desc *template_desc = NULL;
 	char *pathbuf = NULL;
@@ -285,14 +285,16 @@ static int process_measurement(struct file *file, const struct cred *cred,
 		iint->measured_pcrs = 0;
 	}
 
-	/* Detect and re-evaluate changes made to the backing file. */
-	backing_inode = d_real_inode(file_dentry(file));
-	if (backing_inode != inode &&
+	/*
+	 * Detect and re-evaluate changes made to the inode holding file data.
+	 */
+	real_inode = d_real_inode(file_dentry(file));
+	if (real_inode != inode &&
 	    (action & IMA_DO_MASK) && (iint->flags & IMA_DONE_MASK)) {
-		if (!IS_I_VERSION(backing_inode) ||
-		    backing_inode->i_sb->s_dev != iint->real_dev ||
-		    backing_inode->i_ino != iint->real_ino ||
-		    !inode_eq_iversion(backing_inode, iint->version)) {
+		if (!IS_I_VERSION(real_inode) ||
+		    real_inode->i_sb->s_dev != iint->real_dev ||
+		    real_inode->i_ino != iint->real_ino ||
+		    !inode_eq_iversion(real_inode, iint->version)) {
 			iint->flags &= ~IMA_DONE_MASK;
 			iint->measured_pcrs = 0;
 		}
-- 
2.43.0





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