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ext4: pack holes in ext4_inode_info

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When CONFIG_DEBUG_SPINLOCK is not enabled (general case), there are four
4 bytes holes and one 2 bytes hole in struct ext4_inode_info. Move the
members to pack the four 4 bytes holes.

Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20250122110533.4116662-10-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Baokun Li 2025-01-22 19:05:33 +08:00 committed by Theodore Ts'o
parent 5a1cd0e975
commit bd29881aff
1 changed files with 3 additions and 4 deletions
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7
fs/ext4/ext4.h
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@ -1064,6 +1064,8 @@ struct ext4_inode_info {
/* Number of ongoing updates on this inode */
atomic_t i_fc_updates;
spinlock_t i_raw_lock; /* protects updates to the raw inode */
/* Fast commit wait queue for this inode */
wait_queue_head_t i_fc_wait;
@ -1101,8 +1103,6 @@ struct ext4_inode_info {
struct inode vfs_inode;
struct jbd2_inode *jinode;
spinlock_t i_raw_lock; /* protects updates to the raw inode */
/*
* File creation time. Its function is same as that of
* struct timespec64 i_{a,c,m}time in the generic inode.
@ -1145,6 +1145,7 @@ struct ext4_inode_info {
/* quota space reservation, managed internally by quota code */
qsize_t i_reserved_quota;
#endif
spinlock_t i_block_reservation_lock;
/* Lock protecting lists below */
spinlock_t i_completed_io_lock;
@ -1155,8 +1156,6 @@ struct ext4_inode_info {
struct list_head i_rsv_conversion_list;
struct work_struct i_rsv_conversion_work;
spinlock_t i_block_reservation_lock;
/*
* Transactions that contain inode's metadata needed to complete
* fsync and fdatasync, respectively.