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ext4: use saved local variable sbi instead of EXT4_SB(sb)

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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@huaweicloud.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20230826174712.4059355-11-shikemeng@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Kemeng Shi 2023-08-27 01:47:09 +08:00 committed by Theodore Ts'o
parent 95b635689b
commit 70cbfd2579
1 changed files with 5 additions and 5 deletions
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10
fs/ext4/resize.c
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@ -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;