Make pathwalk use d_is_reg() rather than S_ISREG() to determine whether to
honour O_TRUNC. Since this occurs after complete_walk(), the dentry type
field cannot change and the inode pointer cannot change as we hold a ref on
the dentry, so this should be safe.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
---
fs/namei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/namei.c b/fs/namei.c
index 66234b836360..5a8dee5c333e 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3079,7 +3079,7 @@ finish_open:
error = -ENOTDIR;
if ((nd->flags & LOOKUP_DIRECTORY) && !d_can_lookup(nd->path.dentry))
goto out;
- if (!S_ISREG(nd->inode->i_mode))
+ if (!d_is_reg(nd->path.dentry))
will_truncate = false;
if (will_truncate) {
--
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