* [PATCH for mm-unstable 1/3] mm/vmscan: Use folio_test_transhuge() for THP check
2022-05-04 20:07 [PATCH for mm-unstable 0/3] Fix build errors due to folio_test_large() misuse SeongJae Park
@ 2022-05-04 20:07 ` SeongJae Park
2022-05-04 20:07 ` [PATCH for mm-unstable 2/3] mm/shmem: " SeongJae Park
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: SeongJae Park @ 2022-05-04 20:07 UTC (permalink / raw)
To: akpm, willy; +Cc: linux-mm, linux-kernel, SeongJae Park
Commit 22bf1b68e572 ("vmscan: remove remaining uses of page in
shrink_page_list") on 'mm-unstable' replaces 'PageTransHuge()' with
'folio_test_large()' instead of 'folio_test_transhuge()'. This results
in below build error when 'CONFIG_TRANSPARENT_HUGEPAGE' is unset.
CC mm/vmscan.o
In file included from <command-line>:
In function ‘can_split_folio’,
inlined from ‘shrink_page_list’ at .../linux/mm/vmscan.c:1719:11:
.../linux/include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_178’ declared with attribute error: BUILD_BUG failed
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
.../linux/include/linux/compiler_types.h:333:4: note: in definition of macro ‘__compiletime_assert’
333 | prefix ## suffix(); \
| ^~~~~~
.../linux/include/linux/compiler_types.h:352:2: note: in expansion of macro ‘_compiletime_assert’
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
| ^~~~~~~~~~~~~~~~
.../linux/include/linux/huge_mm.h:351:2: note: in expansion of macro ‘BUILD_BUG’
351 | BUILD_BUG();
| ^~~~~~~~~
This commit fixes the issue by replacing the check to use
'folio_test_transhuge()'.
Fixes: 22bf1b68e572 ("vmscan: remove remaining uses of page in shrink_page_list")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 40cda196d802..5a0f081a7be5 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1714,7 +1714,7 @@ static unsigned int shrink_page_list(struct list_head *page_list,
goto keep_locked;
if (folio_maybe_dma_pinned(folio))
goto keep_locked;
- if (folio_test_large(folio)) {
+ if (folio_test_transhuge(folio)) {
/* cannot split folio, skip it */
if (!can_split_folio(folio, NULL))
goto activate_locked;
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH for mm-unstable 2/3] mm/shmem: Use folio_test_transhuge() for THP check
2022-05-04 20:07 [PATCH for mm-unstable 0/3] Fix build errors due to folio_test_large() misuse SeongJae Park
2022-05-04 20:07 ` [PATCH for mm-unstable 1/3] mm/vmscan: Use folio_test_transhuge() for THP check SeongJae Park
@ 2022-05-04 20:07 ` SeongJae Park
2022-05-04 20:07 ` [PATCH for mm-unstable 3/3] " SeongJae Park
2022-05-04 20:10 ` [PATCH for mm-unstable 0/3] Fix build errors due to folio_test_large() misuse Matthew Wilcox
3 siblings, 0 replies; 6+ messages in thread
From: SeongJae Park @ 2022-05-04 20:07 UTC (permalink / raw)
To: akpm, willy; +Cc: linux-mm, linux-kernel, SeongJae Park
Commit 9a44f3462edc ("mm/shmem: convert shmem_add_to_page_cache to take
a folio") on 'mm-unstable' replaces 'PageTransHuge()' with
'folio_test_large()' instead of 'folio_test_transhuge()'. This results
in below build error when 'CONFIG_TRANSPARENT_HUGEPAGE' is unset.
CC mm/shmem.o
In file included from <command-line>:
In function ‘shmem_add_to_page_cache’,
inlined from ‘shmem_getpage_gfp.isra.0’ at .../linux/mm/shmem.c:1912:10:
.../linux/include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_244’ declared with attribute error: BUILD_BUG failed
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
.../linux/include/linux/compiler_types.h:333:4: note: in definition of macro ‘__compiletime_assert’
333 | prefix ## suffix(); \
| ^~~~~~
.../linux/include/linux/compiler_types.h:352:2: note: in expansion of macro ‘_compiletime_assert’
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
| ^~~~~~~~~~~~~~~~
.../linux/include/linux/vm_event_item.h:147:27: note: in expansion of macro ‘BUILD_BUG’
147 | #define THP_FILE_ALLOC ({ BUILD_BUG(); 0; })
| ^~~~~~~~~
.../linux/mm/shmem.c:743:19: note: in expansion of macro ‘THP_FILE_ALLOC’
743 | count_vm_event(THP_FILE_ALLOC);
| ^~~~~~~~~~~~~~
This commit fixes the issue by replacing the check to use
'folio_test_transhuge()'.
Fixes: 9a44f3462edc ("mm/shmem: convert shmem_add_to_page_cache to take a folio")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 6a18641a90ff..3dc34a5a7923 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -739,7 +739,7 @@ static int shmem_add_to_page_cache(struct folio *folio,
xas_store(&xas, folio);
if (xas_error(&xas))
goto unlock;
- if (folio_test_large(folio)) {
+ if (folio_test_transhuge(folio)) {
count_vm_event(THP_FILE_ALLOC);
__lruvec_stat_mod_folio(folio, NR_SHMEM_THPS, nr);
}
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH for mm-unstable 3/3] mm/shmem: Use folio_test_transhuge() for THP check
2022-05-04 20:07 [PATCH for mm-unstable 0/3] Fix build errors due to folio_test_large() misuse SeongJae Park
2022-05-04 20:07 ` [PATCH for mm-unstable 1/3] mm/vmscan: Use folio_test_transhuge() for THP check SeongJae Park
2022-05-04 20:07 ` [PATCH for mm-unstable 2/3] mm/shmem: " SeongJae Park
@ 2022-05-04 20:07 ` SeongJae Park
2022-05-04 20:10 ` [PATCH for mm-unstable 0/3] Fix build errors due to folio_test_large() misuse Matthew Wilcox
3 siblings, 0 replies; 6+ messages in thread
From: SeongJae Park @ 2022-05-04 20:07 UTC (permalink / raw)
To: akpm, willy; +Cc: linux-mm, linux-kernel, SeongJae Park
Commit 94cdf3e8c0bf ("mm/shmem: convert shmem_getpage_gfp to use a
folio") on 'mm-unstable' replaces 'PageTransHuge()' with
'folio_test_large()' instead of 'folio_test_transhuge()'. This results
in below build error when 'CONFIG_TRANSPARENT_HUGEPAGE' is unset.
CC mm/shmem.o
In file included from .../linux/include/linux/kernel.h:25,
from .../linux/arch/x86/include/asm/percpu.h:27,
from .../linux/arch/x86/include/asm/preempt.h:6,
from .../linux/include/linux/preempt.h:78,
from .../linux/include/linux/spinlock.h:55,
from .../linux/include/linux/wait.h:9,
from .../linux/include/linux/wait_bit.h:8,
from .../linux/include/linux/fs.h:6,
from .../linux/mm/shmem.c:24:
.../linux/mm/shmem.c: In function ‘shmem_getpage_gfp.isra.0’:
.../linux/include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_252’ declared with attribute error: BUILD_BUG failed
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
.../linux/include/linux/math.h:15:46: note: in definition of macro ‘__round_mask’
15 | #define __round_mask(x, y) ((__typeof__(x))((y)-1))
| ^
.../linux/mm/shmem.c:1900:12: note: in expansion of macro ‘round_down’
1900 | hindex = round_down(index, HPAGE_PMD_NR);
| ^~~~~~~~~~
.../linux/include/linux/compiler_types.h:340:2: note: in expansion of macro ‘__compiletime_assert’
340 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~~~~~~~~~~~~
.../linux/include/linux/compiler_types.h:352:2: note: in expansion of macro ‘_compiletime_assert’
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
| ^~~~~~~~~~~~~~~~
.../linux/include/linux/huge_mm.h:307:28: note: in expansion of macro ‘BUILD_BUG’
307 | #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
| ^~~~~~~~~
.../linux/include/linux/huge_mm.h:105:26: note: in expansion of macro ‘HPAGE_PMD_SHIFT’
105 | #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
| ^~~~~~~~~~~~~~~
.../linux/include/linux/huge_mm.h:106:26: note: in expansion of macro ‘HPAGE_PMD_ORDER’
106 | #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
| ^~~~~~~~~~~~~~~
.../linux/mm/shmem.c:1900:30: note: in expansion of macro ‘HPAGE_PMD_NR’
1900 | hindex = round_down(index, HPAGE_PMD_NR);
| ^~~~~~~~~~~~
In file included from <command-line>:
.../linux/include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_253’ declared with attribute error: BUILD_BUG failed
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^
.../linux/include/linux/compiler_types.h:333:4: note: in definition of macro ‘__compiletime_assert’
333 | prefix ## suffix(); \
| ^~~~~~
.../linux/include/linux/compiler_types.h:352:2: note: in expansion of macro ‘_compiletime_assert’
352 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:39:37: note: in expansion of macro ‘compiletime_assert’
39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
| ^~~~~~~~~~~~~~~~~~
.../linux/include/linux/build_bug.h:59:21: note: in expansion of macro ‘BUILD_BUG_ON_MSG’
59 | #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
| ^~~~~~~~~~~~~~~~
.../linux/include/linux/huge_mm.h:307:28: note: in expansion of macro ‘BUILD_BUG’
307 | #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
| ^~~~~~~~~
.../linux/include/linux/huge_mm.h:105:26: note: in expansion of macro ‘HPAGE_PMD_SHIFT’
105 | #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
| ^~~~~~~~~~~~~~~
.../linux/include/linux/huge_mm.h:106:26: note: in expansion of macro ‘HPAGE_PMD_ORDER’
106 | #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
| ^~~~~~~~~~~~~~~
.../linux/mm/shmem.c:1923:13: note: in expansion of macro ‘HPAGE_PMD_NR’
1923 | hindex + HPAGE_PMD_NR - 1) {
| ^~~~~~~~~~~~
Fixes: 94cdf3e8c0bf ("mm/shmem: convert shmem_getpage_gfp to use a folio")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
mm/shmem.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/shmem.c b/mm/shmem.c
index 3dc34a5a7923..c51d3532c962 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1888,7 +1888,7 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
goto unlock;
}
- if (folio_test_large(folio))
+ if (folio_test_transhuge(folio))
hindex = round_down(index, HPAGE_PMD_NR);
else
hindex = index;
@@ -1910,7 +1910,7 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
spin_unlock_irq(&info->lock);
alloced = true;
- if (folio_test_large(folio) &&
+ if (folio_test_transhuge(folio) &&
DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE) <
hindex + HPAGE_PMD_NR - 1) {
/*
@@ -1973,7 +1973,7 @@ static int shmem_getpage_gfp(struct inode *inode, pgoff_t index,
unacct:
shmem_inode_unacct_blocks(inode, folio_nr_pages(folio));
- if (folio_test_large(folio)) {
+ if (folio_test_transhuge(folio)) {
folio_unlock(folio);
folio_put(folio);
goto alloc_nohuge;
--
2.25.1
^ permalink raw reply related [flat|nested] 6+ messages in thread