s_last_trim_minblks 1529 fs/ext4/ext4.h atomic_t s_last_trim_minblks; s_last_trim_minblks 5198 fs/ext4/mballoc.c minblocks >= atomic_read(&EXT4_SB(sb)->s_last_trim_minblks)) s_last_trim_minblks 5334 fs/ext4/mballoc.c atomic_set(&EXT4_SB(sb)->s_last_trim_minblks, minlen);