From: Eric Biggers <[email protected]>

Now that a fscrypt_info may be set up for inodes that are currently
being created and haven't yet had an inode number assigned, avoid
logging confusing messages about "inode 0".

Signed-off-by: Eric Biggers <[email protected]>
---
 fs/crypto/crypto.c  | 4 +++-
 fs/crypto/keyring.c | 9 +++++++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index 9212325763b0f..4ef3f714046aa 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -343,9 +343,11 @@ void fscrypt_msg(const struct inode *inode, const char 
*level,
        va_start(args, fmt);
        vaf.fmt = fmt;
        vaf.va = &args;
-       if (inode)
+       if (inode && inode->i_ino)
                printk("%sfscrypt (%s, inode %lu): %pV\n",
                       level, inode->i_sb->s_id, inode->i_ino, &vaf);
+       else if (inode)
+               printk("%sfscrypt (%s): %pV\n", level, inode->i_sb->s_id, &vaf);
        else
                printk("%sfscrypt: %pV\n", level, &vaf);
        va_end(args);
diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c
index e74f239c44280..53cc552a7b8fd 100644
--- a/fs/crypto/keyring.c
+++ b/fs/crypto/keyring.c
@@ -817,6 +817,7 @@ static int check_for_busy_inodes(struct super_block *sb,
        struct list_head *pos;
        size_t busy_count = 0;
        unsigned long ino;
+       char ino_str[50] = "";
 
        spin_lock(&mk->mk_decrypted_inodes_lock);
 
@@ -838,11 +839,15 @@ static int check_for_busy_inodes(struct super_block *sb,
        }
        spin_unlock(&mk->mk_decrypted_inodes_lock);
 
+       /* If the inode is currently being created, ino may still be 0. */
+       if (ino)
+               snprintf(ino_str, sizeof(ino_str), ", including ino %lu", ino);
+
        fscrypt_warn(NULL,
-                    "%s: %zu inode(s) still busy after removing key with %s 
%*phN, including ino %lu",
+                    "%s: %zu inode(s) still busy after removing key with %s 
%*phN%s",
                     sb->s_id, busy_count, master_key_spec_type(&mk->mk_spec),
                     master_key_spec_len(&mk->mk_spec), (u8 *)&mk->mk_spec.u,
-                    ino);
+                    ino_str);
        return -EBUSY;
 }
 
-- 
2.28.0



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