From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- drivers/pcmcia/at91_cf.c | 1 + drivers/pcmcia/au1000_generic.c | 1 + drivers/pcmcia/bcm63xx_pcmcia.c | 1 + drivers/pcmcia/bfin_cf_pcmcia.c | 1 + drivers/pcmcia/db1xxx_ss.c | 1 + drivers/pcmcia/ds.c | 1 + drivers/pcmcia/electra_cf.c | 1 + drivers/pcmcia/i82365.c | 1 - drivers/pcmcia/m32r_cfc.c | 1 - drivers/pcmcia/m32r_pcc.c | 1 - drivers/pcmcia/m8xx_pcmcia.c | 1 - drivers/pcmcia/omap_cf.c | 1 + drivers/pcmcia/pcmcia_ioctl.c | 1 + drivers/pcmcia/pcmcia_resource.c | 1 + drivers/pcmcia/pd6729.c | 1 + drivers/pcmcia/pxa2xx_base.c | 1 + drivers/pcmcia/rsrc_mgr.c | 1 + drivers/pcmcia/sa1100_generic.c | 1 + drivers/pcmcia/sa1111_generic.c | 1 + drivers/pcmcia/sa11xx_base.c | 1 + drivers/pcmcia/socket_sysfs.c | 1 - drivers/pcmcia/tcic.c | 1 - drivers/pcmcia/xxs1500_ss.c | 1 + drivers/pcmcia/yenta_socket.c | 1 + 24 files changed, 18 insertions(+), 6 deletions(-) (limited to 'drivers/pcmcia') diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c index fb904f444d9..fb33fa42d24 100644 --- a/drivers/pcmcia/at91_cf.c +++ b/drivers/pcmcia/at91_cf.c @@ -15,6 +15,7 @@ #include #include #include +#include #include diff --git a/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c index ac4d089430f..88c4c409878 100644 --- a/drivers/pcmcia/au1000_generic.c +++ b/drivers/pcmcia/au1000_generic.c @@ -43,6 +43,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/bcm63xx_pcmcia.c b/drivers/pcmcia/bcm63xx_pcmcia.c index bc88a3b19bb..693577e0fef 100644 --- a/drivers/pcmcia/bcm63xx_pcmcia.c +++ b/drivers/pcmcia/bcm63xx_pcmcia.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c index 93f9ddeb0c3..9e84d039de4 100644 --- a/drivers/pcmcia/bfin_cf_pcmcia.c +++ b/drivers/pcmcia/bfin_cf_pcmcia.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c index a520193b645..6206408e196 100644 --- a/drivers/pcmcia/db1xxx_ss.c +++ b/drivers/pcmcia/db1xxx_ss.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 52d33b2a5bc..cb6036d89e5 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c index 89cfddca089..2e59fe947d2 100644 --- a/drivers/pcmcia/electra_cf.c +++ b/drivers/pcmcia/electra_cf.c @@ -31,6 +31,7 @@ #include #include #include +#include #include diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c index d53d9b5659c..9e2a15628de 100644 --- a/drivers/pcmcia/i82365.c +++ b/drivers/pcmcia/i82365.c @@ -40,7 +40,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pcmcia/m32r_cfc.c b/drivers/pcmcia/m32r_cfc.c index ab21264468d..7e16ed8eb0a 100644 --- a/drivers/pcmcia/m32r_cfc.c +++ b/drivers/pcmcia/m32r_cfc.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pcmcia/m32r_pcc.c b/drivers/pcmcia/m32r_pcc.c index 0caf3db7c70..6c5c3f910d7 100644 --- a/drivers/pcmcia/m32r_pcc.c +++ b/drivers/pcmcia/m32r_pcc.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c index 01ef7de1532..41cc954a5ff 100644 --- a/drivers/pcmcia/m8xx_pcmcia.c +++ b/drivers/pcmcia/m8xx_pcmcia.c @@ -42,7 +42,6 @@ #include #include -#include #include #include #include diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index 9edc396577b..a7cfc7964c7 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -16,6 +16,7 @@ #include #include #include +#include #include diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c index 13a7132cf68..104e73d5d86 100644 --- a/drivers/pcmcia/pcmcia_ioctl.c +++ b/drivers/pcmcia/pcmcia_ioctl.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index c4612c52e4c..caec1dee2a4 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c index 4a34268cc51..b61a13663a0 100644 --- a/drivers/pcmcia/pd6729.c +++ b/drivers/pcmcia/pd6729.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include diff --git a/drivers/pcmcia/pxa2xx_base.c b/drivers/pcmcia/pxa2xx_base.c index 0a876fabfe4..df4532e91b1 100644 --- a/drivers/pcmcia/pxa2xx_base.c +++ b/drivers/pcmcia/pxa2xx_base.c @@ -17,6 +17,7 @@ ======================================================================*/ #include +#include #include #include #include diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c index 452c83b512c..ffa5f3cae57 100644 --- a/drivers/pcmcia/rsrc_mgr.c +++ b/drivers/pcmcia/rsrc_mgr.c @@ -12,6 +12,7 @@ * (C) 1999 David A. Hinds */ +#include #include #include diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c index 51889624142..edbd8c47262 100644 --- a/drivers/pcmcia/sa1100_generic.c +++ b/drivers/pcmcia/sa1100_generic.c @@ -32,6 +32,7 @@ #include #include +#include #include #include diff --git a/drivers/pcmcia/sa1111_generic.c b/drivers/pcmcia/sa1111_generic.c index 799e9793e49..59866905ea3 100644 --- a/drivers/pcmcia/sa1111_generic.c +++ b/drivers/pcmcia/sa1111_generic.c @@ -12,6 +12,7 @@ #include #include #include +#include #include diff --git a/drivers/pcmcia/sa11xx_base.c b/drivers/pcmcia/sa11xx_base.c index fc9a6527019..fa28d8911b0 100644 --- a/drivers/pcmcia/sa11xx_base.c +++ b/drivers/pcmcia/sa11xx_base.c @@ -37,6 +37,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c index 08278016e58..80e36bc407d 100644 --- a/drivers/pcmcia/socket_sysfs.c +++ b/drivers/pcmcia/socket_sysfs.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c index bac85f3236b..56004a1b5bb 100644 --- a/drivers/pcmcia/tcic.c +++ b/drivers/pcmcia/tcic.c @@ -39,7 +39,6 @@ #include #include #include -#include #include #include #include diff --git a/drivers/pcmcia/xxs1500_ss.c b/drivers/pcmcia/xxs1500_ss.c index f9009d34254..201ccfa1e97 100644 --- a/drivers/pcmcia/xxs1500_ss.c +++ b/drivers/pcmcia/xxs1500_ss.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index f19ad02374d..83ace277426 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3-70-g09d2