tree wide: get rid of __GFP_REPEAT for order-0 allocations part I

This is the third version of the patchset previously sent [1].  I have
basically only rebased it on top of 4.7-rc1 tree and dropped "dm: get
rid of superfluous gfp flags" which went through dm tree.  I am sending
it now because it is tree wide and chances for conflicts are reduced
considerably when we want to target rc2.  I plan to send the next step
and rename the flag and move to a better semantic later during this
release cycle so we will have a new semantic ready for 4.8 merge window
hopefully.

Motivation:

While working on something unrelated I've checked the current usage of
__GFP_REPEAT in the tree.  It seems that a majority of the usage is and
always has been bogus because __GFP_REPEAT has always been about costly
high order allocations while we are using it for order-0 or very small
orders very often.  It seems that a big pile of them is just a
copy&paste when a code has been adopted from one arch to another.

I think it makes some sense to get rid of them because they are just
making the semantic more unclear.  Please note that GFP_REPEAT is
documented as

* __GFP_REPEAT: Try hard to allocate the memory, but the allocation attempt

* _might_ fail.  This depends upon the particular VM implementation.
  while !costly requests have basically nofail semantic.  So one could
  reasonably expect that order-0 request with __GFP_REPEAT will not loop
  for ever.  This is not implemented right now though.

I would like to move on with __GFP_REPEAT and define a better semantic
for it.

  $ git grep __GFP_REPEAT origin/master | wc -l
  111
  $ git grep __GFP_REPEAT | wc -l
  36

So we are down to the third after this patch series.  The remaining
places really seem to be relying on __GFP_REPEAT due to large allocation
requests.  This still needs some double checking which I will do later
after all the simple ones are sorted out.

I am touching a lot of arch specific code here and I hope I got it right
but as a matter of fact I even didn't compile test for some archs as I
do not have cross compiler for them.  Patches should be quite trivial to
review for stupid compile mistakes though.  The tricky parts are usually
hidden by macro definitions and thats where I would appreciate help from
arch maintainers.

[1] http://lkml.kernel.org/r/1461849846-27209-1-git-send-email-mhocko@kernel.org

This patch (of 19):

__GFP_REPEAT has a rather weak semantic but since it has been introduced
around 2.6.12 it has been ignored for low order allocations.  Yet we
have the full kernel tree with its usage for apparently order-0
allocations.  This is really confusing because __GFP_REPEAT is
explicitly documented to allow allocation failures which is a weaker
semantic than the current order-0 has (basically nofail).

Let's simply drop __GFP_REPEAT from those places.  This would allow to
identify place which really need allocator to retry harder and formulate
a more specific semantic for what the flag is supposed to do actually.

Link: http://lkml.kernel.org/r/1464599699-30131-2-git-send-email-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Liqin <liqin.linux@gmail.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com> [for tile]
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: John Crispin <blogic@openwrt.org>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index aab14a019c20f82c7cc60084026b120727971214..c2ebb6f36c9d3358699eac1ebb5f9dfad081b68f 100644 (file)
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -40,7 +40,7 @@ pgd_free(struct mm_struct *mm, pgd_t *pgd)
 static inline pmd_t *
 pmd_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-       pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        return ret;
 }
 
@@ -53,7 +53,7 @@ pmd_free(struct mm_struct *mm, pmd_t *pmd)
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        return pte;
 }
 

diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 19cfab526d13a37dd33d476f1270179fc4fe5d5c..20febb36884424a0b23984c776e23abab3509a40 100644 (file)
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -29,7 +29,7 @@
 
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-       return (pmd_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
+       return (pmd_t *)get_zeroed_page(GFP_KERNEL);
 }
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)

diff --git a/arch/avr32/include/asm/pgalloc.h b/arch/avr32/include/asm/pgalloc.h
index 1aba19d68c5ededf4ce986340bf410bb8e05eb3e..db039cb368bef85edaf7461f2f9f834be79a6bfd 100644 (file)
--- a/arch/avr32/include/asm/pgalloc.h
+++ b/arch/avr32/include/asm/pgalloc.h
@@ -43,7 +43,7 @@ static inline void pgd_ctor(void *x)
  */
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-       return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
+       return quicklist_alloc(QUICK_PGD, GFP_KERNEL, pgd_ctor);
 }
 
 static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
@@ -54,7 +54,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+       return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@@ -63,7 +63,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
        struct page *page;
        void *pg;
 
-       pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+       pg = quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
        if (!pg)
                return NULL;
 

diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 235ece437dddc7196be819a8b7b30dc3f26028a5..42f1affb9c2dda555041404be054b9ae5e873f85 100644 (file)
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -24,14 +24,14 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        return pte;
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
        struct page *pte;
-       pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+       pte = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
        if (!pte)
                return NULL;
        if (!pgtable_page_ctor(pte)) {

diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c
index 41907d25ed384e2ee42e46d1df461bbd2886732f..c9ed14f6c67de118ac789f7f58e3937df7ad3ddf 100644 (file)
--- a/arch/frv/mm/pgalloc.c
+++ b/arch/frv/mm/pgalloc.c
@@ -22,7 +22,7 @@ pgd_t swapper_pg_dir[PTRS_PER_PGD] __attribute__((aligned(PAGE_SIZE)));
 
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL);
        if (pte)
                clear_page(pte);
        return pte;
@@ -33,9 +33,9 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
        struct page *page;
 
 #ifdef CONFIG_HIGHPTE
-       page = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT, 0);
+       page = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0);
 #else
-       page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
+       page = alloc_pages(GFP_KERNEL, 0);
 #endif
        if (!page)
                return NULL;

diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index 77da3b0ae3c2b2c37636f4f0e8dc3ee296e80268..eeebf862c46c6aa16a5a994686f80439b4db6c4b 100644 (file)
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -64,7 +64,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 {
        struct page *pte;
 
-       pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+       pte = alloc_page(GFP_KERNEL | __GFP_ZERO);
        if (!pte)
                return NULL;
        if (!pgtable_page_ctor(pte)) {
@@ -78,7 +78,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       gfp_t flags =  GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO;
+       gfp_t flags =  GFP_KERNEL | __GFP_ZERO;
        return (pte_t *) __get_free_page(flags);
 }
 

diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index f9924fbcfe42b8f279d83758e4fc987cb32da409..fb95aed5f428110ef54a43ef355c12ab0bf59389 100644 (file)
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -14,7 +14,7 @@ extern const char bad_pmd_string[];
 extern inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
        unsigned long address)
 {
-       unsigned long page = __get_free_page(GFP_DMA|__GFP_REPEAT);
+       unsigned long page = __get_free_page(GFP_DMA);
 
        if (!page)
                return NULL;
@@ -51,7 +51,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page,
 static inline struct page *pte_alloc_one(struct mm_struct *mm,
        unsigned long address)
 {
-       struct page *page = alloc_pages(GFP_DMA|__GFP_REPEAT, 0);
+       struct page *page = alloc_pages(GFP_DMA, 0);
        pte_t *pte;
 
        if (!page)

diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 24bcba496c7505e94d5c45512c399e773106b029..c895b987202cd07fbc9f38ad727bf79b53587a29 100644 (file)
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -11,7 +11,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long ad
 {
        pte_t *pte;
 
-       pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        if (pte) {
                __flush_page_to_ram(pte);
                flush_tlb_kernel_page(pte);
@@ -32,7 +32,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
        struct page *page;
        pte_t *pte;
 
-       page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+       page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0);
        if(!page)
                return NULL;
        if (!pgtable_page_ctor(page)) {

diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 0931388de47f600d75bf52a4fd8a60b8117fe1b2..1901f61f926f5ec5b855d51c9b3fea7f835b29da 100644 (file)
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -37,7 +37,7 @@ do {                                                  \
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       unsigned long page = __get_free_page(GFP_KERNEL|__GFP_REPEAT);
+       unsigned long page = __get_free_page(GFP_KERNEL);
 
        if (!page)
                return NULL;
@@ -49,7 +49,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
                                        unsigned long address)
 {
-        struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
+        struct page *page = alloc_pages(GFP_KERNEL, 0);
 
        if (page == NULL)
                return NULL;

diff --git a/arch/metag/include/asm/pgalloc.h b/arch/metag/include/asm/pgalloc.h
index 3104df0a4822fdf766aa8821e3dc17165e5bbc0c..c2caa1ee436057368753bfea9fb839078d41b636 100644 (file)
--- a/arch/metag/include/asm/pgalloc.h
+++ b/arch/metag/include/asm/pgalloc.h
@@ -42,8 +42,7 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT |
-                                             __GFP_ZERO);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
        return pte;
 }
 
@@ -51,7 +50,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
                                      unsigned long address)
 {
        struct page *pte;
-       pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0);
+       pte = alloc_pages(GFP_KERNEL  | __GFP_ZERO, 0);
        if (!pte)
                return NULL;
        if (!pgtable_page_ctor(pte)) {

diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index 61436d69775ca216096cd95169e2bd89eb34b526..7c89390c0c13dc8bfafd35c30bd9fd7372ffa385 100644 (file)
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -116,9 +116,9 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
        struct page *ptepage;
 
 #ifdef CONFIG_HIGHPTE
-       int flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_REPEAT;
+       int flags = GFP_KERNEL | __GFP_HIGHMEM;
 #else
-       int flags = GFP_KERNEL | __GFP_REPEAT;
+       int flags = GFP_KERNEL;
 #endif
 
        ptepage = alloc_pages(flags, 0);

diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 4f4520e779a5bf06ccfc69c7b3671961c1967dff..eb99fcc760884e4ee01f1e6bf73a6802a1277169 100644 (file)
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -239,8 +239,7 @@ __init_refok pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 {
        pte_t *pte;
        if (mem_init_done) {
-               pte = (pte_t *)__get_free_page(GFP_KERNEL |
-                                       __GFP_REPEAT | __GFP_ZERO);
+               pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
        } else {
                pte = (pte_t *)early_get_page();
                if (pte)

diff --git a/arch/mn10300/mm/pgtable.c b/arch/mn10300/mm/pgtable.c
index e77a7c728081125233ebf569dac465960a997aff..9577cf768875c8bd207b1ceb6f1ba8ddb8d943a3 100644 (file)
--- a/arch/mn10300/mm/pgtable.c
+++ b/arch/mn10300/mm/pgtable.c
@@ -63,7 +63,7 @@ void set_pmd_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags)
 
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL);
        if (pte)
                clear_page(pte);
        return pte;
@@ -74,9 +74,9 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
        struct page *pte;
 
 #ifdef CONFIG_HIGHPTE
-       pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM|__GFP_REPEAT, 0);
+       pte = alloc_pages(GFP_KERNEL|__GFP_HIGHMEM, 0);
 #else
-       pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
+       pte = alloc_pages(GFP_KERNEL, 0);
 #endif
        if (!pte)
                return NULL;

diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 21484e5b9e9af1cec95e2d786d87816caccb13e4..87eebd18508953733ddc5cd9ed1f387b7abfb88d 100644 (file)
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -77,7 +77,7 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
                                         unsigned long address)
 {
        struct page *pte;
-       pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
+       pte = alloc_pages(GFP_KERNEL, 0);
        if (!pte)
                return NULL;
        clear_page(page_address(pte));

diff --git a/arch/openrisc/mm/ioremap.c b/arch/openrisc/mm/ioremap.c
index 62b08ef392be2c202f5ed73326fe708b9eda8e41..5b2a95116e8fa0e3d3fc95d3094bfdcc682b47d9 100644 (file)
--- a/arch/openrisc/mm/ioremap.c
+++ b/arch/openrisc/mm/ioremap.c
@@ -122,7 +122,7 @@ pte_t __init_refok *pte_alloc_one_kernel(struct mm_struct *mm,
        pte_t *pte;
 
        if (likely(mem_init_done)) {
-               pte = (pte_t *) __get_free_page(GFP_KERNEL | __GFP_REPEAT);
+               pte = (pte_t *) __get_free_page(GFP_KERNEL);
        } else {
                pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
 #if 0

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f2fd327dce2edc14db5717211fe27943e957fcf0..52c3defb40c9dc4505e9914eba88334f313da432 100644 (file)
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -124,7 +124,7 @@ pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
 static inline pgtable_t
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-       struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       struct page *page = alloc_page(GFP_KERNEL|__GFP_ZERO);
        if (!page)
                return NULL;
        if (!pgtable_page_ctor(page)) {
@@ -137,7 +137,7 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 static inline pte_t *
 pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr)
 {
-       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        return pte;
 }
 

diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h
index 488279edb1f045e00cb8bf2261367d319ad862ea..049b80359db67971460afb9cb6840cb8d1410da9 100644 (file)
--- a/arch/powerpc/include/asm/book3s/64/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h
@@ -151,7 +151,7 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd)
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+       return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,

diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h
index 069369f6414bd1443586e84eae65b259b596a515..8a8a7d991249b56d38d9731cd29ac431d87fa9e8 100644 (file)
--- a/arch/powerpc/include/asm/nohash/64/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h
@@ -88,7 +88,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+       return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index bf7bf32b54f8a7ca025c06ca7e74e3f0d78f1d70..7f922f5579365f2a3b3b9404cc7b22d855f587bf 100644 (file)
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -84,7 +84,7 @@ __init_refok pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long add
        pte_t *pte;
 
        if (slab_is_available()) {
-               pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+               pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        } else {
                pte = __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
                if (pte)
@@ -97,7 +97,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
        struct page *ptepage;
 
-       gfp_t flags = GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO;
+       gfp_t flags = GFP_KERNEL | __GFP_ZERO;
 
        ptepage = alloc_pages(flags, 0);
        if (!ptepage)

diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index e009e0604a8ab76f7b9b1efd2004c8c45f210c6c..f5e8d4edb808f8748d8eaf630f027f0d5796b344 100644 (file)
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -350,8 +350,7 @@ static pte_t *get_from_cache(struct mm_struct *mm)
 static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
 {
        void *ret = NULL;
-       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
-                                      __GFP_REPEAT | __GFP_ZERO);
+       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
        if (!page)
                return NULL;
        if (!kernel && !pgtable_page_ctor(page)) {

diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index a33673b3687df2fa1e76022635cc3961a60810c5..f3f42c84c40fd3a2b81ea523ee841c99d1e82f4b 100644 (file)
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -34,7 +34,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                                          unsigned long address)
 {
-       return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+       return quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@@ -43,7 +43,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
        struct page *page;
        void *pg;
 
-       pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+       pg = quicklist_alloc(QUICK_PT, GFP_KERNEL, NULL);
        if (!pg)
                return NULL;
        page = virt_to_page(pg);

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 14bb0d5ed3c605cc71680d95102c832295abbbb8..aec508e374906ba0b1860f3669a609407c080125 100644 (file)
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2704,8 +2704,7 @@ void __flush_tlb_all(void)
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
                            unsigned long address)
 {
-       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
-                                      __GFP_REPEAT | __GFP_ZERO);
+       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
        pte_t *pte = NULL;
 
        if (page)
@@ -2717,8 +2716,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 pgtable_t pte_alloc_one(struct mm_struct *mm,
                        unsigned long address)
 {
-       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
-                                      __GFP_REPEAT | __GFP_ZERO);
+       struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO);
        if (!page)
                return NULL;
        if (!pgtable_page_ctor(page)) {

diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index b2a2dff50b4e1983a89b9257de79417333c1f2b6..e7437ec627108a263f105ad042f6529201d1775c 100644 (file)
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -204,7 +204,7 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
 {
        pte_t *pte;
 
-       pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
        return pte;
 }
 
@@ -212,7 +212,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
        struct page *pte;
 
-       pte = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
+       pte = alloc_page(GFP_KERNEL|__GFP_ZERO);
        if (!pte)
                return NULL;
        if (!pgtable_page_ctor(pte)) {

diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index bf7f8b55b0f9d8940d839b695466d32999078c10..574c23cf761ac97b50f6042cd86cc58ef1575add 100644 (file)
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -81,7 +81,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
        struct page *page;
-       page = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0);
+       page = alloc_pages(GFP_KERNEL |  __GFP_ZERO, 0);
        if (!page)
                return NULL;
        if (!pgtable_pmd_page_ctor(page)) {
@@ -125,7 +125,7 @@ static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
 
 static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-       return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+       return (pud_t *)get_zeroed_page(GFP_KERNEL);
 }
 
 static inline void pud_free(struct mm_struct *mm, pud_t *pud)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index cab9f766bb06b28b8f0f8f35583e70ae50adb30e..dd2a49a8aacc6b1dfaeac32980c94c71af991ed9 100644 (file)
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -182,7 +182,7 @@ static void * __ref alloc_p2m_page(void)
        if (unlikely(!slab_is_available()))
                return alloc_bootmem_align(PAGE_SIZE, PAGE_SIZE);
 
-       return (void *)__get_free_page(GFP_KERNEL | __GFP_REPEAT);
+       return (void *)__get_free_page(GFP_KERNEL);
 }
 
 static void __ref free_p2m_page(void *p)

diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index d38eb9237e645cf5affd4964d8d289abb1a2ee4f..1065bc8bcae56bba87f8d1a55b2c5155d489777d 100644 (file)
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -44,7 +44,7 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
        pte_t *ptep;
        int i;
 
-       ptep = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+       ptep = (pte_t *)__get_free_page(GFP_KERNEL);
        if (!ptep)
                return NULL;
        for (i = 0; i < 1024; i++)

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index d597e432e195305906d357e113b90659cbdadbd6..ab19adb07a126ae0cae4f0d37170a2929367b115 100644 (file)
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1750,7 +1750,7 @@ aoecmd_init(void)
        int ret;
 
        /* get_zeroed_page returns page with ref count 1 */
-       p = (void *) get_zeroed_page(GFP_KERNEL | __GFP_REPEAT);
+       p = (void *) get_zeroed_page(GFP_KERNEL);
        if (!p)
                return -ENOMEM;
        empty_page = virt_to_page(p);