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Remove fs.h from mm.h
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Remove fs.h from mm.h. For this,
 1) Uninline vma_wants_writenotify(). It's pretty huge anyway.
 2) Add back fs.h or less bloated headers (err.h) to files that need it.

As result, on x86_64 allyesconfig, fs.h dependencies cut down from 3929 files
rebuilt down to 3444 (-12.3%).

Cross-compile tested without regressions on my two usual configs and (sigh):

alpha              arm-mx1ads        mips-bigsur          powerpc-ebony
alpha-allnoconfig  arm-neponset      mips-capcella        powerpc-g5
alpha-defconfig    arm-netwinder     mips-cobalt          powerpc-holly
alpha-up           arm-netx          mips-db1000          powerpc-iseries
arm                arm-ns9xxx        mips-db1100          powerpc-linkstation
arm-assabet        arm-omap_h2_1610  mips-db1200          powerpc-lite5200
arm-at91rm9200dk   arm-onearm        mips-db1500          powerpc-maple
arm-at91rm9200ek   arm-picotux200    mips-db1550          powerpc-mpc7448_hpc2
arm-at91sam9260ek  arm-pleb          mips-ddb5477         powerpc-mpc8272_ads
arm-at91sam9261ek  arm-pnx4008       mips-decstation      powerpc-mpc8313_rdb
arm-at91sam9263ek  arm-pxa255-idp    mips-e55             powerpc-mpc832x_mds
arm-at91sam9rlek   arm-realview      mips-emma2rh         powerpc-mpc832x_rdb
arm-ateb9200       arm-realview-smp  mips-excite          powerpc-mpc834x_itx
arm-badge4         arm-rpc           mips-fulong          powerpc-mpc834x_itxgp
arm-carmeva        arm-s3c2410       mips-ip22            powerpc-mpc834x_mds
arm-cerfcube       arm-shannon       mips-ip27            powerpc-mpc836x_mds
arm-clps7500       arm-shark         mips-ip32            powerpc-mpc8540_ads
arm-collie         arm-simpad        mips-jazz            powerpc-mpc8544_ds
arm-corgi          arm-spitz         mips-jmr3927         powerpc-mpc8560_ads
arm-csb337         arm-trizeps4      mips-malta           powerpc-mpc8568mds
arm-csb637         arm-versatile     mips-mipssim         powerpc-mpc85xx_cds
arm-ebsa110        i386              mips-mpc30x          powerpc-mpc8641_hpcn
arm-edb7211        i386-allnoconfig  mips-msp71xx         powerpc-mpc866_ads
arm-em_x270        i386-defconfig    mips-ocelot          powerpc-mpc885_ads
arm-ep93xx         i386-up           mips-pb1100          powerpc-pasemi
arm-footbridge     ia64              mips-pb1500          powerpc-pmac32
arm-fortunet       ia64-allnoconfig  mips-pb1550          powerpc-ppc64
arm-h3600          ia64-bigsur       mips-pnx8550-jbs     powerpc-prpmc2800
arm-h7201          ia64-defconfig    mips-pnx8550-stb810  powerpc-ps3
arm-h7202          ia64-gensparse    mips-qemu            powerpc-pseries
arm-hackkit        ia64-sim          mips-rbhma4200       powerpc-up
arm-integrator     ia64-sn2          mips-rbhma4500       s390
arm-iop13xx        ia64-tiger        mips-rm200           s390-allnoconfig
arm-iop32x         ia64-up           mips-sb1250-swarm    s390-defconfig
arm-iop33x         ia64-zx1          mips-sead            s390-up
arm-ixp2000        m68k              mips-tb0219          sparc
arm-ixp23xx        m68k-amiga        mips-tb0226          sparc-allnoconfig
arm-ixp4xx         m68k-apollo       mips-tb0287          sparc-defconfig
arm-jornada720     m68k-atari        mips-workpad         sparc-up
arm-kafa           m68k-bvme6000     mips-wrppmc          sparc64
arm-kb9202         m68k-hp300        mips-yosemite        sparc64-allnoconfig
arm-ks8695         m68k-mac          parisc               sparc64-defconfig
arm-lart           m68k-mvme147      parisc-allnoconfig   sparc64-up
arm-lpd270         m68k-mvme16x      parisc-defconfig     um-x86_64
arm-lpd7a400       m68k-q40          parisc-up            x86_64
arm-lpd7a404       m68k-sun3         powerpc              x86_64-allnoconfig
arm-lubbock        m68k-sun3x        powerpc-cell         x86_64-defconfig
arm-lusl7200       mips              powerpc-celleb       x86_64-up
arm-mainstone      mips-atlas        powerpc-chrp32

Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Alexey Dobriyan authored and Linus Torvalds committed Jul 30, 2007
1 parent 673d5b4 commit 4e950f6
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Showing 45 changed files with 81 additions and 33 deletions.
1 change: 1 addition & 0 deletions arch/alpha/kernel/smp.c
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Expand Up @@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/threads.h>
#include <linux/smp.h>
#include <linux/interrupt.h>
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1 change: 1 addition & 0 deletions arch/arm/kernel/setup.c
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Expand Up @@ -23,6 +23,7 @@
#include <linux/cpu.h>
#include <linux/interrupt.h>
#include <linux/smp.h>
#include <linux/fs.h>

#include <asm/cpu.h>
#include <asm/elf.h>
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1 change: 1 addition & 0 deletions arch/arm/kernel/smp.c
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Expand Up @@ -17,6 +17,7 @@
#include <linux/profile.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <linux/seq_file.h>
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1 change: 1 addition & 0 deletions arch/frv/kernel/sys_frv.c
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Expand Up @@ -13,6 +13,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
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1 change: 1 addition & 0 deletions arch/i386/kernel/microcode.c
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Expand Up @@ -82,6 +82,7 @@
#include <linux/miscdevice.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/cpu.h>
#include <linux/firmware.h>
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1 change: 1 addition & 0 deletions arch/i386/kernel/sys_i386.c
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Expand Up @@ -9,6 +9,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
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1 change: 1 addition & 0 deletions arch/i386/kernel/sysenter.c
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Expand Up @@ -16,6 +16,7 @@
#include <linux/string.h>
#include <linux/elf.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/module.h>

#include <asm/cpufeature.h>
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1 change: 1 addition & 0 deletions arch/ia64/kernel/init_task.c
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Expand Up @@ -8,6 +8,7 @@

#include <linux/init.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init_task.h>
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1 change: 1 addition & 0 deletions arch/m68k/kernel/process.c
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Expand Up @@ -15,6 +15,7 @@
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/stddef.h>
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1 change: 1 addition & 0 deletions arch/m68k/kernel/sys_m68k.c
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Expand Up @@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/sem.h>
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1 change: 1 addition & 0 deletions arch/mips/kernel/smp.c
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Expand Up @@ -30,6 +30,7 @@
#include <linux/sched.h>
#include <linux/cpumask.h>
#include <linux/cpu.h>
#include <linux/err.h>

#include <asm/atomic.h>
#include <asm/cpu.h>
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1 change: 1 addition & 0 deletions arch/mips/kernel/syscall.c
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Expand Up @@ -12,6 +12,7 @@
#include <linux/errno.h>
#include <linux/linkage.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/mman.h>
#include <linux/ptrace.h>
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1 change: 1 addition & 0 deletions arch/parisc/hpux/fs.c
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Expand Up @@ -23,6 +23,7 @@

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/file.h>
#include <linux/slab.h>
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1 change: 1 addition & 0 deletions arch/parisc/kernel/init_task.c
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Expand Up @@ -23,6 +23,7 @@
*/

#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init.h>
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1 change: 1 addition & 0 deletions arch/parisc/kernel/process.c
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Expand Up @@ -38,6 +38,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/personality.h>
#include <linux/ptrace.h>
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1 change: 1 addition & 0 deletions arch/parisc/kernel/smp.c
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Expand Up @@ -28,6 +28,7 @@
#include <linux/smp.h>
#include <linux/kernel_stat.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/bitops.h>

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1 change: 1 addition & 0 deletions arch/powerpc/kernel/syscalls.c
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Expand Up @@ -23,6 +23,7 @@
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
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1 change: 1 addition & 0 deletions arch/powerpc/lib/rheap.c
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Expand Up @@ -16,6 +16,7 @@
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/slab.h>

#include <asm/rheap.h>
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1 change: 1 addition & 0 deletions arch/powerpc/oprofile/cell/spu_task_sync.c
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Expand Up @@ -21,6 +21,7 @@
#include <linux/dcookies.h>
#include <linux/kref.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/numa.h>
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1 change: 1 addition & 0 deletions arch/s390/kernel/init_task.c
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Expand Up @@ -7,6 +7,7 @@
*/

#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init_task.h>
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1 change: 1 addition & 0 deletions arch/s390/kernel/process.c
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Expand Up @@ -21,6 +21,7 @@
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
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1 change: 1 addition & 0 deletions arch/s390/kernel/smp.c
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Expand Up @@ -23,6 +23,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/spinlock.h>
#include <linux/kernel_stat.h>
#include <linux/delay.h>
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1 change: 1 addition & 0 deletions arch/s390/kernel/sys_s390.c
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Expand Up @@ -16,6 +16,7 @@
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
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1 change: 1 addition & 0 deletions arch/sparc/kernel/init_task.c
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@@ -1,4 +1,5 @@
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init_task.h>
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1 change: 1 addition & 0 deletions arch/sparc64/kernel/init_task.c
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@@ -1,4 +1,5 @@
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init_task.h>
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1 change: 1 addition & 0 deletions arch/sparc64/kernel/process.c
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Expand Up @@ -18,6 +18,7 @@
#include <linux/kernel.h>
#include <linux/kallsyms.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/stddef.h>
#include <linux/ptrace.h>
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1 change: 1 addition & 0 deletions arch/um/drivers/mmapper_kern.c
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Expand Up @@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <asm/uaccess.h>
#include "mem_user.h"
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1 change: 1 addition & 0 deletions arch/um/kernel/exec.c
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Expand Up @@ -6,6 +6,7 @@
#include "linux/slab.h"
#include "linux/smp_lock.h"
#include "linux/ptrace.h"
#include "linux/fs.h"
#include "asm/ptrace.h"
#include "asm/pgtable.h"
#include "asm/tlbflush.h"
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1 change: 1 addition & 0 deletions arch/um/kernel/init_task.c
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Expand Up @@ -4,6 +4,7 @@
*/

#include "linux/mm.h"
#include "linux/fs.h"
#include "linux/module.h"
#include "linux/sched.h"
#include "linux/init_task.h"
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1 change: 1 addition & 0 deletions arch/um/kernel/syscall.c
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Expand Up @@ -7,6 +7,7 @@
#include "linux/file.h"
#include "linux/smp_lock.h"
#include "linux/mm.h"
#include "linux/fs.h"
#include "linux/utsname.h"
#include "linux/msg.h"
#include "linux/shm.h"
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1 change: 1 addition & 0 deletions arch/x86_64/ia32/ptrace32.c
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Expand Up @@ -15,6 +15,7 @@
#include <linux/syscalls.h>
#include <linux/unistd.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/ptrace.h>
#include <asm/ptrace.h>
#include <asm/compat.h>
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1 change: 1 addition & 0 deletions arch/x86_64/kernel/process.c
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Expand Up @@ -23,6 +23,7 @@
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/elfcore.h>
#include <linux/smp.h>
#include <linux/slab.h>
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1 change: 1 addition & 0 deletions arch/x86_64/kernel/sys_x86_64.c
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Expand Up @@ -6,6 +6,7 @@
#include <linux/sched.h>
#include <linux/syscalls.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/smp.h>
#include <linux/sem.h>
#include <linux/msg.h>
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1 change: 1 addition & 0 deletions arch/x86_64/vdso/vma.c
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Expand Up @@ -4,6 +4,7 @@
* Subject to the GPL, v.2
*/
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/random.h>
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1 change: 1 addition & 0 deletions drivers/char/agp/compat_ioctl.c
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Expand Up @@ -28,6 +28,7 @@

#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/fs.h>
#include <linux/agpgart.h>
#include <asm/uaccess.h>
#include "agp.h"
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1 change: 1 addition & 0 deletions drivers/char/agp/frontend.c
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Expand Up @@ -37,6 +37,7 @@
#include <linux/agpgart.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
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1 change: 1 addition & 0 deletions drivers/char/mmtimer.c
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Expand Up @@ -25,6 +25,7 @@
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/mmtimer.h>
#include <linux/miscdevice.h>
#include <linux/posix-timers.h>
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1 change: 1 addition & 0 deletions drivers/char/mspec.c
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Expand Up @@ -38,6 +38,7 @@
#include <linux/miscdevice.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <linux/vmalloc.h>
#include <linux/string.h>
#include <linux/slab.h>
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1 change: 1 addition & 0 deletions drivers/infiniband/hw/ipath/ipath_diag.c
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Expand Up @@ -44,6 +44,7 @@
#include <linux/io.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <asm/uaccess.h>

#include "ipath_kernel.h"
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1 change: 1 addition & 0 deletions fs/dcookies.c
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Expand Up @@ -20,6 +20,7 @@
#include <linux/capability.h>
#include <linux/dcache.h>
#include <linux/mm.h>
#include <linux/err.h>
#include <linux/errno.h>
#include <linux/dcookies.h>
#include <linux/mutex.h>
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2 changes: 2 additions & 0 deletions include/linux/hugetlb.h
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@@ -1,6 +1,8 @@
#ifndef _LINUX_HUGETLB_H
#define _LINUX_HUGETLB_H

#include <linux/fs.h>

#ifdef CONFIG_HUGETLB_PAGE

#include <linux/mempolicy.h>
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36 changes: 3 additions & 33 deletions include/linux/mm.h
Original file line number Diff line number Diff line change
Expand Up @@ -10,15 +10,16 @@
#include <linux/mmzone.h>
#include <linux/rbtree.h>
#include <linux/prio_tree.h>
#include <linux/fs.h>
#include <linux/mutex.h>
#include <linux/debug_locks.h>
#include <linux/backing-dev.h>
#include <linux/mm_types.h>

struct mempolicy;
struct anon_vma;
struct file_ra_state;
struct user_struct;
struct writeback_control;

#ifndef CONFIG_DISCONTIGMEM /* Don't use mapnrs, do it properly */
extern unsigned long max_mapnr;
Expand Down Expand Up @@ -861,38 +862,7 @@ struct shrinker {
extern void register_shrinker(struct shrinker *);
extern void unregister_shrinker(struct shrinker *);

/*
* Some shared mappigns will want the pages marked read-only
* to track write events. If so, we'll downgrade vm_page_prot
* to the private version (using protection_map[] without the
* VM_SHARED bit).
*/
static inline int vma_wants_writenotify(struct vm_area_struct *vma)
{
unsigned int vm_flags = vma->vm_flags;

/* If it was private or non-writable, the write bit is already clear */
if ((vm_flags & (VM_WRITE|VM_SHARED)) != ((VM_WRITE|VM_SHARED)))
return 0;

/* The backer wishes to know when pages are first written to? */
if (vma->vm_ops && vma->vm_ops->page_mkwrite)
return 1;

/* The open routine did something to the protections already? */
if (pgprot_val(vma->vm_page_prot) !=
pgprot_val(protection_map[vm_flags &
(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]))
return 0;

/* Specialty mapping? */
if (vm_flags & (VM_PFNMAP|VM_INSERTPAGE))
return 0;

/* Can the mapping track the dirty pages? */
return vma->vm_file && vma->vm_file->f_mapping &&
mapping_cap_account_dirty(vma->vm_file->f_mapping);
}
int vma_wants_writenotify(struct vm_area_struct *vma);

extern pte_t *FASTCALL(get_locked_pte(struct mm_struct *mm, unsigned long addr, spinlock_t **ptl));

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