* [PATCH] ovl: add debug print to ovl_do_getxattr()
@ 2021-04-10 9:17 Amir Goldstein
2021-04-12 8:22 ` Miklos Szeredi
0 siblings, 1 reply; 2+ messages in thread
From: Amir Goldstein @ 2021-04-10 9:17 UTC (permalink / raw)
To: Miklos Szeredi; +Cc: Chris Murphy, linux-unionfs
It was the only ovl_do helper missing it.
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---
fs/overlayfs/overlayfs.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 2322f854533c..d1e08d804207 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -186,7 +186,12 @@ static inline ssize_t ovl_do_getxattr(struct ovl_fs *ofs, struct dentry *dentry,
size_t size)
{
const char *name = ovl_xattr(ofs, ox);
- return vfs_getxattr(&init_user_ns, dentry, name, value, size);
+ int err = vfs_getxattr(&init_user_ns, dentry, name, value, size);
+ int len = (value && err > 0) ? err : 0;
+
+ pr_debug("getxattr(%pd2, \"%s\", \"%*pE\", %zu, 0) = %i\n",
+ dentry, name, min(len, 48), value, size, err);
+ return err;
}
static inline int ovl_do_setxattr(struct ovl_fs *ofs, struct dentry *dentry,
--
2.30.0
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2021-04-10 9:17 [PATCH] ovl: add debug print to ovl_do_getxattr() Amir Goldstein
2021-04-12 8:22 ` Miklos Szeredi
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