mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-09 11:23:09 -04:00
Code Issues Packages Projects Releases Wiki Activity

mm: remove prev check from do_vmi_align_munmap()

Browse Source 
If the prev does not exist, the vma iterator will be set to MAS_NONE,
which will be treated as a MAS_START when the mas_next or mas_find is
used.  In this case, the next caller will be the vma iterator, which
uses mas_find() under the hood and will now do what the user expects.

Link: https://lkml.kernel.org/r/20230724183157.3939892-5-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett
2023-07-24 14:31:46 -04:00
committed by Andrew Morton
parent fd892593d4
commit 445a2ea0ef
1 changed files with 0 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
mm/mmap.c
View File

@@ -2459,8 +2459,6 @@ do_vmi_align_munmap(struct vma_iterator *vmi, struct vm_area_struct *vma,
}
prev = vma_prev(vmi);
if (unlikely((!prev)))
vma_iter_set(vmi, start);
/*
* Detach a range of VMAs from the mm. Using next as a temp variable as