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mm/vmalloc: fix comments about vmap_area struct 

The vmap_area_root should be in the "busy" tree and the
free_vmap_area_root should be in the "free" tree.

Link: https://lkml.kernel.org/r/20220305011510.33596-1-libang.linuxer@gmail.com
Fixes: 688fcbfc06 ("mm/vmalloc: modify struct vmap_area to reduce its size")
Signed-off-by: Bang Li <libang.linuxer@gmail.com>
Reviewed-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Pengfei Li <lpf.vector@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Bang Li 2022-03-22 14:43:02 -07:00 committed by Linus Torvalds
parent c3385e8458
commit ff11a7ce1f
1 changed files with 2 additions and 2 deletions
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4
include/linux/vmalloc.h
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@ -80,8 +80,8 @@ struct vmap_area {
/*
* The following two variables can be packed, because
* a vmap_area object can be either:
* 1) in "free" tree (root is vmap_area_root)
* 2) or "busy" tree (root is free_vmap_area_root)
* 1) in "free" tree (root is free_vmap_area_root)
* 2) or "busy" tree (root is vmap_area_root)
*/
union {
unsigned long subtree_max_size; /* in "free" tree */