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ANDROID: khugepaged: fix mixing declarations warning in retract_page_tables

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vm_write_begin() was added before variable definition, producing a
"mixing declarations and code is a C99 extension" warning. Fix by
rearranging the code.

Fixes: ("ANDROID: mm/khugepaged: add missing vm_write_{begin|end}")
Bug: 257443051
Change-Id: I6e85ccfabd5e37b1397c654d61d0b8177326c3d8
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan
2022-11-27 10:00:18 -08:00
parent aaf03dd58c
commit d95f5e3da7
1 changed files with 2 additions and 1 deletions
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3
mm/khugepaged.c
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@@ -1605,8 +1605,9 @@ static void retract_page_tables(struct address_space *mapping, pgoff_t pgoff)
*/
if (mmap_write_trylock(mm)) {
if (!khugepaged_test_exit(mm)) {
spinlock_t *ptl;
vm_write_begin(vma);
spinlock_t *ptl = pmd_lock(mm, pmd);
ptl = pmd_lock(mm, pmd);
/* assume page table is clear */
_pmd = pmdp_collapse_flush(vma, addr, pmd);
spin_unlock(ptl);