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 fb904f444d90..fb33fa42d249 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 ac4d089430fd..88c4c4098789 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 bc88a3b19bb3..693577e0fefc 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 93f9ddeb0c36..9e84d039de41 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 a520193b6453..6206408e196c 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 52d33b2a5bc5..cb6036d89e59 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 89cfddca089a..2e59fe947d28 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 d53d9b5659c7..9e2a15628de5 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 ab21264468d6..7e16ed8eb0a4 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 0caf3db7c700..6c5c3f910d71 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 01ef7de15322..41cc954a5ffe 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 9edc396577b9..a7cfc7964c7c 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 13a7132cf688..104e73d5d86c 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 c4612c52e4cb..caec1dee2a4b 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 4a34268cc512..b61a13663a0a 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 0a876fabfe44..df4532e91b1a 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 452c83b512c4..ffa5f3cae57b 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 518896241429..edbd8c472628 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 799e9793e49e..59866905ea37 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 fc9a6527019b..fa28d8911b00 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 08278016e58d..80e36bc407da 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 bac85f3236bb..56004a1b5bba 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 f9009d34254b..201ccfa1e97b 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 f19ad02374d9..83ace277426c 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