korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-25 13:14:07 +08:00
Code Issues Packages Projects Releases Wiki Activity

ext4: mballoc: Remove useless setting of ac_criteria

Browse Source 
There will be changes coming in future patches which will introduce a new
criteria for block allocation. This removes the useless setting of ac_criteria.
AFAIU, this might be only used to differentiate between whether a preallocated
blocks was allocated or was regular allocator called for allocating blocks.
Hence this also adds the debug prints to identify what type of block allocation
was done in ext4_mb_show_ac().

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/1dbae05617519cb6202f1b299c9d1be3e7cda763.1685449706.git.ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ritesh Harjani 2023-05-30 18:03:40 +05:30 committed by Theodore Ts'o
parent 2ec6d0a5ea
commit 569f196f1e
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
fs/ext4/mballoc.c
View File

@ -4617,7 +4617,6 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
atomic_inc(&tmp_pa->pa_count);
ext4_mb_use_inode_pa(ac, tmp_pa);
spin_unlock(&tmp_pa->pa_lock);
ac->ac_criteria = 10;
read_unlock(&ei->i_prealloc_lock);
return true;
}
@ -4660,7 +4659,6 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
}
if (cpa) {
ext4_mb_use_group_pa(ac, cpa);
ac->ac_criteria = 20;
return true;
}
return false;
@ -5434,6 +5432,10 @@ static void ext4_mb_show_ac(struct ext4_allocation_context *ac)
(unsigned long)ac->ac_b_ex.fe_logical,
(int)ac->ac_criteria);
mb_debug(sb, "%u found", ac->ac_found);
mb_debug(sb, "used pa: %s, ", ac->ac_pa ? "yes" : "no");
if (ac->ac_pa)
mb_debug(sb, "pa_type %s\n", ac->ac_pa->pa_type == MB_GROUP_PA ?
"group pa" : "inode pa");
ext4_mb_show_pa(sb);
}
#else