diff mbox series

[v2,7/7] f2fs: Reuse generic_ci_match for ci comparisons

Message ID 20220428221027.269084-8-krisman@collabora.com
State Superseded
Headers show
Series Clean up the case-insenstive lookup path | expand

Commit Message

Gabriel Krisman Bertazi April 28, 2022, 10:10 p.m. UTC
Now that ci_match is part of libfs, make f2fs reuse it instead of having
a different implementation.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
---
 fs/f2fs/dir.c | 58 ++++-----------------------------------------------
 1 file changed, 4 insertions(+), 54 deletions(-)

Comments

kernel test robot April 29, 2022, 9:12 a.m. UTC | #1
Hi Gabriel,

I love your patch! Yet something to improve:

[auto build test ERROR on tytso-ext4/dev]
[also build test ERROR on jaegeuk-f2fs/dev-test linus/master v5.18-rc4 next-20220428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/Clean-up-the-case-insenstive-lookup-path/20220429-061233
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
config: microblaze-buildonly-randconfig-r004-20220428 (https://download.01.org/0day-ci/archive/20220429/202204291733.QRyzoWB6-lkp@intel.com/config)
compiler: microblaze-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/8955999168ad8e2d440ec534ebe26830da9bc6f6
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/Clean-up-the-case-insenstive-lookup-path/20220429-061233
        git checkout 8955999168ad8e2d440ec534ebe26830da9bc6f6
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=microblaze SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "generic_ci_match" [fs/f2fs/f2fs.ko] undefined!
ERROR: modpost: "generic_ci_match" [fs/ext4/ext4.ko] undefined!
Gabriel Krisman Bertazi April 29, 2022, 5:36 p.m. UTC | #2
kernel test robot <lkp@intel.com> writes:

> Hi Gabriel,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on tytso-ext4/dev]
> [also build test ERROR on jaegeuk-f2fs/dev-test linus/master v5.18-rc4 next-20220428]
> [If your patch is applied to the wrong git tree, kindly drop us a note.
> And when submitting patch, we suggest to use '--base' as documented in
> https://git-scm.com/docs/git-format-patch]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Gabriel-Krisman-Bertazi/Clean-up-the-case-insenstive-lookup-path/20220429-061233
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
> config: microblaze-buildonly-randconfig-r004-20220428 (https://download.01.org/0day-ci/archive/20220429/202204291733.QRyzoWB6-lkp@intel.com/config)
> compiler: microblaze-linux-gcc (GCC) 11.3.0
> reproduce (this is a W=1 build):
>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # https://github.com/intel-lab-lkp/linux/commit/8955999168ad8e2d440ec534ebe26830da9bc6f6
>         git remote add linux-review https://github.com/intel-lab-lkp/linux
>         git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/Clean-up-the-case-insenstive-lookup-path/20220429-061233
>         git checkout 8955999168ad8e2d440ec534ebe26830da9bc6f6
>         # save the config file
>         mkdir build_dir && cp config build_dir/.config
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=microblaze SHELL=/bin/bash
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
> All errors (new ones prefixed by >>, old ones prefixed by <<):
>
>>> ERROR: modpost: "generic_ci_match" [fs/f2fs/f2fs.ko] undefined!
> ERROR: modpost: "generic_ci_match" [fs/ext4/ext4.ko] undefined!

Missing an EXPORT_SYMBOL, I guess. sorry for the noise. will fix and
resend.
diff mbox series

Patch

diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 166f08623362..c39b3abbf99e 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -208,69 +208,19 @@  static struct f2fs_dir_entry *find_in_block(struct inode *dir,
 	return f2fs_find_target_dentry(&d, fname, max_slots);
 }
 
-#if IS_ENABLED(CONFIG_UNICODE)
-/*
- * Test whether a case-insensitive directory entry matches the filename
- * being searched for.
- *
- * Returns 1 for a match, 0 for no match, and -errno on an error.
- */
-static int f2fs_match_ci_name(const struct inode *dir, const struct qstr *name,
-			       const u8 *de_name, u32 de_name_len)
-{
-	const struct super_block *sb = dir->i_sb;
-	const struct unicode_map *um = sb->s_encoding;
-	struct fscrypt_str decrypted_name = FSTR_INIT(NULL, de_name_len);
-	struct qstr entry = QSTR_INIT(de_name, de_name_len);
-	int res;
-
-	if (IS_ENCRYPTED(dir)) {
-		const struct fscrypt_str encrypted_name =
-			FSTR_INIT((u8 *)de_name, de_name_len);
-
-		if (WARN_ON_ONCE(!fscrypt_has_encryption_key(dir)))
-			return -EINVAL;
-
-		decrypted_name.name = kmalloc(de_name_len, GFP_KERNEL);
-		if (!decrypted_name.name)
-			return -ENOMEM;
-		res = fscrypt_fname_disk_to_usr(dir, 0, 0, &encrypted_name,
-						&decrypted_name);
-		if (res < 0)
-			goto out;
-		entry.name = decrypted_name.name;
-		entry.len = decrypted_name.len;
-	}
-
-	res = utf8_strncasecmp_folded(um, name, &entry);
-	/*
-	 * In strict mode, ignore invalid names.  In non-strict mode,
-	 * fall back to treating them as opaque byte sequences.
-	 */
-	if (res < 0 && !sb_has_strict_encoding(sb)) {
-		res = name->len == entry.len &&
-				memcmp(name->name, entry.name, name->len) == 0;
-	} else {
-		/* utf8_strncasecmp_folded returns 0 on match */
-		res = (res == 0);
-	}
-out:
-	kfree(decrypted_name.name);
-	return res;
-}
-#endif /* CONFIG_UNICODE */
-
 static inline int f2fs_match_name(const struct inode *dir,
 				   const struct f2fs_filename *fname,
 				   const u8 *de_name, u32 de_name_len)
 {
 	struct fscrypt_name f;
+	struct unicode_name u;
 
 #if IS_ENABLED(CONFIG_UNICODE)
 	if (fname->cf_name.name) {
 		struct qstr cf = FSTR_TO_QSTR(&fname->cf_name);
-
-		return f2fs_match_ci_name(dir, &cf, de_name, de_name_len);
+		u.folded_name = &cf;
+		u.usr_name = fname->usr_fname;
+		return generic_ci_match(dir, &u, (u8*) de_name, de_name_len);
 	}
 #endif
 	f.usr_fname = fname->usr_fname;