The patch titled
Subject: proc: skip branch in /proc/*/* lookup
has been removed from the -mm tree. Its filename was
proc-skip-branch-in-proc-lookup.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: proc: skip branch in /proc/*/* lookup
Code is structured like this:
for ( ... p < last; p++) {
if (memcmp == 0)
break;
}
if (p >= last)
ERROR
OK
gcc doesn't see that if if lookup succeeds than post loop branch will
never be taken and skip it.
[akpm@xxxxxxxxxxxxxxxxxxxx: proc_pident_instantiate() no longer takes an inode*]
Link: http://lkml.kernel.org/r/20180423213954.GD9043@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/base.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff -puN fs/proc/base.c~proc-skip-branch-in-proc-lookup fs/proc/base.c
--- a/fs/proc/base.c~proc-skip-branch-in-proc-lookup
+++ a/fs/proc/base.c
@@ -2439,14 +2439,11 @@ static struct dentry *proc_pident_lookup
for (p = ents; p < last; p++) {
if (p->len != dentry->d_name.len)
continue;
- if (!memcmp(dentry->d_name.name, p->name, p->len))
+ if (!memcmp(dentry->d_name.name, p->name, p->len)) {
+ res = proc_pident_instantiate(dentry, task, p);
break;
+ }
}
- if (p >= last)
- goto out;
-
- res = proc_pident_instantiate(dentry, task, p);
-out:
put_task_struct(task);
out_no_task:
return res;
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
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