[PATCH v7 06/16] hfsplus: Report case sensitivity in fileattr_get
From: Chuck Lever <cel@kernel.org>
Date: 2026-01-22 16:03:31
Also in:
linux-cifs, linux-ext4, linux-f2fs-devel, linux-fsdevel, linux-nfs, linux-xfs
Subsystem:
filesystems (vfs and infrastructure), hfsplus filesystem, the rest · Maintainers:
Alexander Viro, Christian Brauner, Viacheslav Dubeyko, John Paul Adrian Glaubitz, Yangtao Li, Linus Torvalds
From: Chuck Lever <chuck.lever@oracle.com> Add case sensitivity reporting to the existing hfsplus_fileattr_get() function via the FS_XFLAG_CASEFOLD flag. HFS+ always preserves case at rest. Case sensitivity depends on how the volume was formatted: HFSX volumes may be either case-sensitive or case-insensitive, indicated by the HFSPLUS_SB_CASEFOLD superblock flag. Reviewed-by: Viacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> --- fs/hfsplus/inode.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 7ae6745ca7ae..ec9a144aac02 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c@@ -694,6 +694,7 @@ int hfsplus_fileattr_get(struct dentry *dentry, struct file_kattr *fa) { struct inode *inode = d_inode(dentry); struct hfsplus_inode_info *hip = HFSPLUS_I(inode); + struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); unsigned int flags = 0; if (inode->i_flags & S_IMMUTABLE)
@@ -705,6 +706,13 @@ int hfsplus_fileattr_get(struct dentry *dentry, struct file_kattr *fa) fileattr_fill_flags(fa, flags); + /* + * HFS+ preserves case (the default). Case sensitivity depends + * on how the filesystem was formatted: HFSX volumes may be + * either case-sensitive or case-insensitive. + */ + if (test_bit(HFSPLUS_SB_CASEFOLD, &sbi->flags)) + fa->fsx_xflags |= FS_XFLAG_CASEFOLD; return 0; }
--
2.52.0