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| author | Qi Zheng <zhengqi.arch@bytedance.com> | 2022-01-14 14:05:51 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-15 16:30:27 +0200 |
| commit | 36ef159f4408b08eae7f2af6d62bedd3f4343758 (patch) | |
| tree | a47fe8e7c98ce5058e1504c251aa914ce9d82f69 /arch/sh | |
| parent | 2c769ed7137a75a8297936fb54e6ff1f56d3d0f1 (diff) | |
| download | linux-36ef159f4408b08eae7f2af6d62bedd3f4343758.tar.gz linux-36ef159f4408b08eae7f2af6d62bedd3f4343758.tar.bz2 linux-36ef159f4408b08eae7f2af6d62bedd3f4343758.zip | |
mm: remove redundant check about FAULT_FLAG_ALLOW_RETRY bit
Since commit 4064b9827063 ("mm: allow VM_FAULT_RETRY for multiple
times") allowed VM_FAULT_RETRY for multiple times, the
FAULT_FLAG_ALLOW_RETRY bit of fault_flag will not be changed in the page
fault path, so the following check is no longer needed:
flags & FAULT_FLAG_ALLOW_RETRY
So just remove it.
[akpm@linux-foundation.org: coding style fixes]
Link: https://lkml.kernel.org/r/20211110123358.36511-1-zhengqi.arch@bytedance.com
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Cc: Peter Xu <peterx@redhat.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Chengming Zhou <zhouchengming@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/mm/fault.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index 1e1aa75df3ca..e175667b1363 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -485,17 +485,15 @@ good_area: if (mm_fault_error(regs, error_code, address, fault)) return; - if (flags & FAULT_FLAG_ALLOW_RETRY) { - if (fault & VM_FAULT_RETRY) { - flags |= FAULT_FLAG_TRIED; - - /* - * No need to mmap_read_unlock(mm) as we would - * have already released it in __lock_page_or_retry - * in mm/filemap.c. - */ - goto retry; - } + if (fault & VM_FAULT_RETRY) { + flags |= FAULT_FLAG_TRIED; + + /* + * No need to mmap_read_unlock(mm) as we would + * have already released it in __lock_page_or_retry + * in mm/filemap.c. + */ + goto retry; } mmap_read_unlock(mm); |