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/ata/ahci.c | 1 + drivers/ata/ata_piix.c | 1 + drivers/ata/libata-acpi.c | 1 + drivers/ata/libata-core.c | 1 + drivers/ata/libata-pmp.c | 1 + drivers/ata/libata-scsi.c | 1 + drivers/ata/libata-sff.c | 1 + drivers/ata/pata_acpi.c | 1 + drivers/ata/pata_at32.c | 1 + drivers/ata/pata_at91.c | 1 + drivers/ata/pata_atp867x.c | 1 + drivers/ata/pata_cmd640.c | 1 + drivers/ata/pata_icside.c | 1 + drivers/ata/pata_it821x.c | 1 + drivers/ata/pata_macio.c | 1 + drivers/ata/pata_mpc52xx.c | 2 +- drivers/ata/pata_octeon_cf.c | 1 + drivers/ata/pata_pcmcia.c | 1 + drivers/ata/pata_rb532_cf.c | 1 + drivers/ata/pata_rdc.c | 1 + drivers/ata/pata_via.c | 1 + drivers/ata/pdc_adma.c | 1 + drivers/ata/sata_fsl.c | 1 + drivers/ata/sata_inic162x.c | 1 + drivers/ata/sata_mv.c | 1 + drivers/ata/sata_nv.c | 1 + drivers/ata/sata_promise.c | 1 + drivers/ata/sata_qstor.c | 1 + drivers/ata/sata_sil24.c | 1 + drivers/ata/sata_sx4.c | 1 + drivers/ata/sata_uli.c | 1 + 31 files changed, 31 insertions(+), 1 deletion(-) (limited to 'drivers/ata') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index fdc9bcb..5326af2 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -42,6 +42,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index c338066..83bc49f 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -90,6 +90,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 292fdbc..7b5eea7 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include "libata.h" diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 4a28420..3f6771e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -58,6 +58,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c index 51f0ffb..00305f4 100644 --- a/drivers/ata/libata-pmp.c +++ b/drivers/ata/libata-pmp.c @@ -9,6 +9,7 @@ #include #include +#include #include "libata.h" const struct ata_port_operations sata_pmp_port_ops = { diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index bea003a..0088cde 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -33,6 +33,7 @@ * */ +#include #include #include #include diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 2774772..6411e0c 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -33,6 +33,7 @@ */ #include +#include #include #include #include diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index 8e5e132..1ea2be0 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/pata_at32.c b/drivers/ata/pata_at32.c index 5c129f9..66ce6a5 100644 --- a/drivers/ata/pata_at32.c +++ b/drivers/ata/pata_at32.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c index 376dd38..c6a946a 100644 --- a/drivers/ata/pata_at91.c +++ b/drivers/ata/pata_at91.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c index 6fe7ded..bb6e074 100644 --- a/drivers/ata/pata_atp867x.c +++ b/drivers/ata/pata_atp867x.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c index 6cd5d5d..45896b3 100644 --- a/drivers/ata/pata_cmd640.c +++ b/drivers/ata/pata_cmd640.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/pata_icside.c b/drivers/ata/pata_icside.c index b663b7f..fa812e2 100644 --- a/drivers/ata/pata_icside.c +++ b/drivers/ata/pata_icside.c @@ -2,6 +2,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c index 9bde1cb..5cb286f 100644 --- a/drivers/ata/pata_it821x.c +++ b/drivers/ata/pata_it821x.c @@ -75,6 +75,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c index 4cc7bbd..211b643 100644 --- a/drivers/ata/pata_macio.c +++ b/drivers/ata/pata_macio.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c index 2bc2dbe..9f5b053 100644 --- a/drivers/ata/pata_mpc52xx.c +++ b/drivers/ata/pata_mpc52xx.c @@ -16,7 +16,7 @@ #include #include -#include +#include #include #include #include diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c index 37ef416..005a444 100644 --- a/drivers/ata/pata_octeon_cf.c +++ b/drivers/ata/pata_octeon_cf.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c index 147de2f..3c3172d 100644 --- a/drivers/ata/pata_pcmcia.c +++ b/drivers/ata/pata_pcmcia.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c index 45f1e10..0ffd631 100644 --- a/drivers/ata/pata_rb532_cf.c +++ b/drivers/ata/pata_rb532_cf.c @@ -19,6 +19,7 @@ * */ +#include #include #include #include diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c index 237a24d..37092cf 100644 --- a/drivers/ata/pata_rdc.c +++ b/drivers/ata/pata_rdc.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c index c59b4071..741e7cb 100644 --- a/drivers/ata/pata_via.c +++ b/drivers/ata/pata_via.c @@ -58,6 +58,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/pdc_adma.c b/drivers/ata/pdc_adma.c index 6c65b07..5904cfd 100644 --- a/drivers/ata/pdc_adma.c +++ b/drivers/ata/pdc_adma.c @@ -34,6 +34,7 @@ #include #include +#include #include #include #include diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index ce4136e..a69192b 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index 4406902..27dc6c8 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -39,6 +39,7 @@ * happy to assist. */ +#include #include #include #include diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index df8ee32..71cc0d4 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -64,6 +64,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c index 684fe04..2a98b09 100644 --- a/drivers/ata/sata_nv.c +++ b/drivers/ata/sata_nv.c @@ -38,6 +38,7 @@ #include #include +#include #include #include #include diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c index 6330628..5356ec0 100644 --- a/drivers/ata/sata_promise.c +++ b/drivers/ata/sata_promise.c @@ -33,6 +33,7 @@ #include #include +#include #include #include #include diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c index 326c0cf..92ba45e 100644 --- a/drivers/ata/sata_qstor.c +++ b/drivers/ata/sata_qstor.c @@ -29,6 +29,7 @@ #include #include +#include #include #include #include diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 1370df6..433b6b8 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -19,6 +19,7 @@ #include #include +#include #include #include #include diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c index bbcf970..232468f 100644 --- a/drivers/ata/sata_sx4.c +++ b/drivers/ata/sata_sx4.c @@ -81,6 +81,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/ata/sata_uli.c b/drivers/ata/sata_uli.c index e5bff47..011e098 100644 --- a/drivers/ata/sata_uli.c +++ b/drivers/ata/sata_uli.c @@ -26,6 +26,7 @@ #include #include +#include #include #include #include -- cgit v1.1