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authorChristoph Hellwig2023-08-02 17:41:24 +0200
committerChristian Brauner2023-08-10 10:34:57 +0200
commit4b41828be268544286794c18200e83861de3554e (patch)
tree24a24cf32c1fb160643ca41058762d1a9798646f /fs
parentc1e012ea9e835f81ac6062e8aa9e72940a671b95 (diff)
ext4: make the IS_EXT2_SB/IS_EXT3_SB checks more robust
Check for sb->s_type which is the right place to look at the file system type, not the holder, which is just an implementation detail in the VFS helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Christian Brauner <brauner@kernel.org> Message-Id: <20230802154131.2221419-6-hch@lst.de> Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/super.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 17c3e792d07e..fa8888f0fed9 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -141,7 +141,7 @@ static struct file_system_type ext2_fs_type = {
};
MODULE_ALIAS_FS("ext2");
MODULE_ALIAS("ext2");
-#define IS_EXT2_SB(sb) ((sb)->s_bdev->bd_holder == &ext2_fs_type)
+#define IS_EXT2_SB(sb) ((sb)->s_type == &ext2_fs_type)
#else
#define IS_EXT2_SB(sb) (0)
#endif
@@ -157,7 +157,7 @@ static struct file_system_type ext3_fs_type = {
};
MODULE_ALIAS_FS("ext3");
MODULE_ALIAS("ext3");
-#define IS_EXT3_SB(sb) ((sb)->s_bdev->bd_holder == &ext3_fs_type)
+#define IS_EXT3_SB(sb) ((sb)->s_type == &ext3_fs_type)
static inline void __ext4_read_bh(struct buffer_head *bh, blk_opf_t op_flags,