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Message-ID: <20240911144502.115260-7-andrealmeid@igalia.com>
Date: Wed, 11 Sep 2024 11:44:58 -0300
From: André Almeida <andrealmeid@...lia.com>
To: Hugh Dickins <hughd@...gle.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Christian Brauner <brauner@...nel.org>,
Jan Kara <jack@...e.cz>,
krisman@...nel.org
Cc: linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
linux-fsdevel@...r.kernel.org,
kernel-dev@...lia.com,
Daniel Rosenberg <drosen@...gle.com>,
smcv@...labora.com,
Christoph Hellwig <hch@....de>,
Theodore Ts'o <tytso@....edu>,
André Almeida <andrealmeid@...lia.com>
Subject: [PATCH v4 06/10] 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 v3:
- New patch
---
fs/libfs.c | 8 +++++---
include/linux/fs.h | 3 +++
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/fs/libfs.c b/fs/libfs.c
index 838524314b1b..c09254ecdcdd 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1783,8 +1783,8 @@ 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;
@@ -1827,6 +1827,7 @@ 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
@@ -1835,7 +1836,7 @@ 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;
@@ -1850,6 +1851,7 @@ 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 937142950dfe..4cd86d36c03d 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3386,6 +3386,9 @@ extern int generic_ci_match(const struct inode *parent,
const struct qstr *folded_name,
const u8 *de_name, u32 de_name_len);
bool generic_ci_validate_strict_name(struct inode *dir, struct qstr *name);
+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);
static inline bool sb_has_encoding(const struct super_block *sb)
{
--
2.46.0
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