The patch titled
failslab: remove __GFP_HIGHMEM filtering
has been added to the -mm tree. Its filename is
fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: failslab: remove __GFP_HIGHMEM filtering
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Filtering __GFP_HIGHMEM flag for slab allocations is useless. Because no
one sets __GFP_HIGHMEM for slab allocator, unlike for page allocator.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
Documentation/fault-injection/fault-injection.txt | 2 -
mm/slab.c | 17 +-----------
2 files changed, 2 insertions(+), 17 deletions(-)
diff -puN Documentation/fault-injection/fault-injection.txt~fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering Documentation/fault-injection/fault-injection.txt
--- a/Documentation/fault-injection/fault-injection.txt~fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering
+++ a/Documentation/fault-injection/fault-injection.txt
@@ -86,7 +86,6 @@ configuration of fault-injection capabil
specifies the maximum stacktrace depth walked during search
for a caller within [address-start,address-end).
-- /debug/failslab/ignore-gfp-highmem:
- /debug/fail_page_alloc/ignore-gfp-highmem:
Format: { 0 | 1 }
@@ -167,7 +166,6 @@ echo 10 > /debug/$FAILNAME/probability
echo 100 > /debug/$FAILNAME/interval
echo -1 > /debug/$FAILNAME/times
echo 2 > /debug/$FAILNAME/verbose
-echo 1 > /debug/$FAILNAME/ignore-gfp-highmem
echo 1 > /debug/$FAILNAME/ignore-gfp-wait
blacklist()
diff -puN mm/slab.c~fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering mm/slab.c
--- a/mm/slab.c~fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering
+++ a/mm/slab.c
@@ -3101,15 +3101,10 @@ static struct failslab_attr {
struct fault_attr attr;
- u32 ignore_gfp_highmem;
u32 ignore_gfp_wait;
-
#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS
-
- struct dentry *ignore_gfp_highmem_file;
struct dentry *ignore_gfp_wait_file;
-
-#endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */
+#endif
} failslab = {
.attr = FAULT_ATTR_INITIALIZER,
@@ -3127,8 +3122,6 @@ static int should_failslab(struct kmem_c
return 0;
if (flags & __GFP_NOFAIL)
return 0;
- if (failslab.ignore_gfp_highmem && (flags & __GFP_HIGHMEM))
- return 0;
if (failslab.ignore_gfp_wait && (flags & __GFP_WAIT))
return 0;
@@ -3152,15 +3145,9 @@ static int __init failslab_debugfs(void)
debugfs_create_bool("ignore-gfp-wait", mode, dir,
&failslab.ignore_gfp_wait);
- failslab.ignore_gfp_highmem_file =
- debugfs_create_bool("ignore-gfp-highmem", mode, dir,
- &failslab.ignore_gfp_highmem);
-
- if (!failslab.ignore_gfp_wait_file ||
- !failslab.ignore_gfp_highmem_file) {
+ if (!failslab.ignore_gfp_wait_file) {
err = -ENOMEM;
debugfs_remove(failslab.ignore_gfp_wait_file);
- debugfs_remove(failslab.ignore_gfp_highmem_file);
cleanup_fault_attr_dentries(&failslab.attr);
}
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
acpi-fix-single-linked-list-manipulation.patch
drm-fix-return-value-check.patch
git-input.patch
input-make-serio_register_driver-return-error.patch
input-check-serio_register_driver-error.patch
input-check-whether-serio-dirver-registration-is-completed.patch
input-change-to-gfp_kernel-for-serio_register_driver-event-allocation.patch
git-mtd.patch
gss_spkm3-fix-error-handling-in-module-init.patch
auth_gss-unregister-gss_domain-when-unloading-module.patch
auth_gss-unregister-gss_domain-when-unloading-module-fix.patch
git-pcmcia.patch
git-watchdog.patch
paride-return-proper-error-code.patch
bit-revese-library.patch
crc32-replace-bitreverse-by-bitrev32.patch
video-use-bitrev8.patch
net-use-bitrev8.patch
isdn-hisax-use-bitrev8.patch
atm-ambassador-use-bitrev8.patch
isdn-gigaset-use-bitrev8.patch
isdn-fix-missing-unregister_capi_driver.patch
fault-injection-documentation-and-scripts.patch
fault-injection-capabilities-infrastructure.patch
fault-injection-capabilities-infrastructure-tidy.patch
fault-injection-capabilities-infrastructure-tweaks.patch
fault-injection-capability-for-kmalloc.patch
fault-injection-capability-for-kmalloc-failslab-remove-__gfp_highmem-filtering.patch
fault-injection-capability-for-alloc_pages.patch
fault-injection-capability-for-disk-io.patch
fault-injection-process-filtering-for-fault-injection-capabilities.patch
fault-injection-stacktrace-filtering.patch
fault-injection-Kconfig-cleanup.patch
fault-injection-stacktrace-filtering-kconfig-fix.patch
fault-injection-Kconfig-cleanup-config_fault_injection-help-text.patch
-
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