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Message-Id: <20241017-tonyk-tmpfs-v7-5-a9c056f8391f@igalia.com>
Date: Thu, 17 Oct 2024 18:14:15 -0300
From: André Almeida <andrealmeid@...lia.com>
To: Gabriel Krisman Bertazi <krisman@...nel.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>,
Theodore Ts'o <tytso@....edu>, Andreas Dilger <adilger.kernel@...ger.ca>,
Hugh Dickins <hughd@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>,
Jonathan Corbet <corbet@....net>, smcv@...labora.com
Cc: kernel-dev@...lia.com, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org,
linux-mm@...ck.org, linux-doc@...r.kernel.org,
André Almeida <andrealmeid@...lia.com>
Subject: [PATCH v7 5/9] libfs: Export generic_ci_ dentry functions
Export generic_ci_ dentry functions so they can be used by
case-insensitive filesystems that need something more custom than the
default one set by `struct generic_ci_dentry_ops`.
Signed-off-by: André Almeida <andrealmeid@...lia.com>
---
Changes from v4:
- Guard func signatures inside IS_ENABLED(CONFIG_UNICODE)
Changes from v3:
- New patch
---
fs/libfs.c | 8 +++++---
include/linux/fs.h | 4 ++++
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/fs/libfs.c b/fs/libfs.c
index 46966fd8bcf9f042e85d0b66134e59fbef83abfd..7b290404c5f9901010ada2f921a214dbc94eb5fa 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1791,8 +1791,8 @@ bool is_empty_dir_inode(struct inode *inode)
*
* Return: 0 if names match, 1 if mismatch, or -ERRNO
*/
-static int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
- const char *str, const struct qstr *name)
+int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name)
{
const struct dentry *parent;
const struct inode *dir;
@@ -1835,6 +1835,7 @@ static int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
return utf8_strncasecmp(dentry->d_sb->s_encoding, name, &qstr);
}
+EXPORT_SYMBOL(generic_ci_d_compare);
/**
* generic_ci_d_hash - generic d_hash implementation for casefolding filesystems
@@ -1843,7 +1844,7 @@ static int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
*
* Return: 0 if hash was successful or unchanged, and -EINVAL on error
*/
-static int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str)
+int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str)
{
const struct inode *dir = READ_ONCE(dentry->d_inode);
struct super_block *sb = dentry->d_sb;
@@ -1858,6 +1859,7 @@ static int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str)
return -EINVAL;
return 0;
}
+EXPORT_SYMBOL(generic_ci_d_hash);
static const struct dentry_operations generic_ci_dentry_ops = {
.d_hash = generic_ci_d_hash,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 403ee5d54c60a0a97e2eba9ef80d8fb4bbd2288f..b277369672a140eba13dce7fa7b0883359c643f8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3458,6 +3458,10 @@ extern int generic_ci_match(const struct inode *parent,
const u8 *de_name, u32 de_name_len);
#if IS_ENABLED(CONFIG_UNICODE)
+int generic_ci_d_hash(const struct dentry *dentry, struct qstr *str);
+int generic_ci_d_compare(const struct dentry *dentry, unsigned int len,
+ const char *str, const struct qstr *name);
+
/**
* generic_ci_validate_strict_name - Check if a given name is suitable
* for a directory
--
2.47.0
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