We save EXT4_SB(sb) to local variable sbi at beginning of function
ext4_resize_begin. Use sbi directly instead of EXT4_SB(sb) to
remove unnecessary pointer dereference.
Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>
Reviewed-by: Theodore Ts'o <tytso@xxxxxxx>
---
fs/ext4/resize.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index d4ab2cde0a03..e2c81b589de8 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -55,7 +55,7 @@ int ext4_resize_begin(struct super_block *sb)
* If the reserved GDT blocks is non-zero, the resize_inode feature
* should always be set.
*/
- if (EXT4_SB(sb)->s_es->s_reserved_gdt_blocks &&
+ if (sbi->s_es->s_reserved_gdt_blocks &&
!ext4_has_feature_resize_inode(sb)) {
ext4_error(sb, "resize_inode disabled but reserved GDT blocks non-zero");
return -EFSCORRUPTED;
@@ -67,9 +67,9 @@ int ext4_resize_begin(struct super_block *sb)
* bad time to do it anyways.
*/
if (EXT4_B2C(sbi, sbi->s_sbh->b_blocknr) !=
- le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
+ le32_to_cpu(sbi->s_es->s_first_data_block)) {
ext4_warning(sb, "won't resize using backup superblock at %llu",
- (unsigned long long)EXT4_SB(sb)->s_sbh->b_blocknr);
+ (unsigned long long)sbi->s_sbh->b_blocknr);
return -EPERM;
}
@@ -77,7 +77,7 @@ int ext4_resize_begin(struct super_block *sb)
* We are not allowed to do online-resizing on a filesystem mounted
* with error, because it can destroy the filesystem easily.
*/
- if (EXT4_SB(sb)->s_mount_state & EXT4_ERROR_FS) {
+ if (sbi->s_mount_state & EXT4_ERROR_FS) {
ext4_warning(sb, "There are errors in the filesystem, "
"so online resizing is not allowed");
return -EPERM;
@@ -89,7 +89,7 @@ int ext4_resize_begin(struct super_block *sb)
}
if (test_and_set_bit_lock(EXT4_FLAGS_RESIZING,
- &EXT4_SB(sb)->s_ext4_flags))
+ &sbi->s_ext4_flags))
ret = -EBUSY;
return ret;
--
2.30.0
