ext4: move s_reserved_gdt_blocks and addressable checking into ext4_check_geometry()

These two checkings are more suitable to be put into
ext4_check_geometry() rather than spreading outside.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Link: https://lore.kernel.org/r/20230323140517.1070239-7-yanaijie@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 53e2945..6e069f8 100644 (file)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4718,6 +4718,25 @@ static int ext4_check_geometry(struct super_block *sb,
 {
        struct ext4_sb_info *sbi = EXT4_SB(sb);
        __u64 blocks_count;
+       int err;
+
+       if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) {
+               ext4_msg(sb, KERN_ERR,
+                        "Number of reserved GDT blocks insanely large: %d",
+                        le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
+               return -EINVAL;
+       }
+       /*
+        * Test whether we have more sectors than will fit in sector_t,
+        * and whether the max offset is addressable by the page cache.
+        */
+       err = generic_check_addressable(sb->s_blocksize_bits,
+                                       ext4_blocks_count(es));
+       if (err) {
+               ext4_msg(sb, KERN_ERR, "filesystem"
+                        " too large to mount safely on this system");
+               return err;
+       }
 
        /* check blocks count against device size */
        blocks_count = sb_bdev_nr_blocks(sb);
@@ -5174,13 +5193,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
        if (ext4_check_feature_compatibility(sb, es, silent))
                goto failed_mount;
 
-       if (le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) > (sb->s_blocksize / 4)) {
-               ext4_msg(sb, KERN_ERR,
-                        "Number of reserved GDT blocks insanely large: %d",
-                        le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks));
-               goto failed_mount;
-       }
-
        if (sbi->s_daxdev) {
                if (sb->s_blocksize == PAGE_SIZE)
                        set_bit(EXT4_FLAGS_BDEV_IS_DAX, &sbi->s_ext4_flags);
@@ -5252,18 +5264,6 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
        if (ext4_handle_clustersize(sb))
                goto failed_mount;
 
-       /*
-        * Test whether we have more sectors than will fit in sector_t,
-        * and whether the max offset is addressable by the page cache.
-        */
-       err = generic_check_addressable(sb->s_blocksize_bits,
-                                       ext4_blocks_count(es));
-       if (err) {
-               ext4_msg(sb, KERN_ERR, "filesystem"
-                        " too large to mount safely on this system");
-               goto failed_mount;
-       }
-
        if (ext4_check_geometry(sb, es))
                goto failed_mount;