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authorScott Wood <scottwood@freescale.com>2013-12-14 01:15:24 (GMT)
committerScott Wood <scottwood@freescale.com>2013-12-14 01:15:24 (GMT)
commitb7c81aa3ab2ac2c140e278b6d0e9a0b95112cf0b (patch)
tree87828aaf5f82c7042bfc0307bc4ac499e10f93fb /arch/powerpc/platforms/cell/spufs/coredump.c
parent22c782a4b14773fab7eab3c1db54ad7ad077e9b8 (diff)
parent78fd82238d0e5716578c326404184a27ba67fd6e (diff)
downloadlinux-fsl-qoriq-b7c81aa3ab2ac2c140e278b6d0e9a0b95112cf0b.tar.xz
Merge remote-tracking branch 'linus/master' into merge
Conflicts: Documentation/hwmon/ina2xx arch/powerpc/Kconfig arch/powerpc/boot/dts/b4860emu.dts arch/powerpc/boot/dts/b4qds.dtsi arch/powerpc/boot/dts/fsl/b4si-post.dtsi arch/powerpc/boot/dts/fsl/qoriq-sec6.0-0.dtsi arch/powerpc/boot/dts/p1023rdb.dts arch/powerpc/boot/dts/t4240emu.dts arch/powerpc/boot/dts/t4240qds.dts arch/powerpc/configs/85xx/p1023_defconfig arch/powerpc/configs/corenet32_smp_defconfig arch/powerpc/configs/corenet64_smp_defconfig arch/powerpc/configs/mpc85xx_smp_defconfig arch/powerpc/include/asm/cputable.h arch/powerpc/include/asm/device.h arch/powerpc/include/asm/epapr_hcalls.h arch/powerpc/include/asm/kvm_host.h arch/powerpc/include/asm/mpic.h arch/powerpc/include/asm/pci.h arch/powerpc/include/asm/ppc-opcode.h arch/powerpc/include/asm/ppc_asm.h arch/powerpc/include/asm/reg_booke.h arch/powerpc/kernel/epapr_paravirt.c arch/powerpc/kernel/process.c arch/powerpc/kernel/prom.c arch/powerpc/kernel/setup-common.c arch/powerpc/kernel/setup_32.c arch/powerpc/kernel/setup_64.c arch/powerpc/kernel/smp.c arch/powerpc/kernel/swsusp_asm64.S arch/powerpc/kernel/swsusp_booke.S arch/powerpc/kvm/book3s_pr.c arch/powerpc/kvm/booke.c arch/powerpc/kvm/booke.h arch/powerpc/kvm/e500.c arch/powerpc/kvm/e500.h arch/powerpc/kvm/e500_emulate.c arch/powerpc/kvm/e500mc.c arch/powerpc/kvm/powerpc.c arch/powerpc/perf/e6500-pmu.c arch/powerpc/platforms/85xx/Kconfig arch/powerpc/platforms/85xx/Makefile arch/powerpc/platforms/85xx/b4_qds.c arch/powerpc/platforms/85xx/c293pcie.c arch/powerpc/platforms/85xx/corenet_ds.c arch/powerpc/platforms/85xx/corenet_ds.h arch/powerpc/platforms/85xx/p1023_rds.c arch/powerpc/platforms/85xx/p2041_rdb.c arch/powerpc/platforms/85xx/p3041_ds.c arch/powerpc/platforms/85xx/p4080_ds.c arch/powerpc/platforms/85xx/p5020_ds.c arch/powerpc/platforms/85xx/p5040_ds.c arch/powerpc/platforms/85xx/smp.c arch/powerpc/platforms/85xx/t4240_qds.c arch/powerpc/platforms/Kconfig arch/powerpc/sysdev/Makefile arch/powerpc/sysdev/fsl_mpic_timer_wakeup.c arch/powerpc/sysdev/fsl_msi.c arch/powerpc/sysdev/fsl_pci.c arch/powerpc/sysdev/fsl_pci.h arch/powerpc/sysdev/fsl_soc.h arch/powerpc/sysdev/mpic.c arch/powerpc/sysdev/mpic_timer.c drivers/Kconfig drivers/clk/Kconfig drivers/clk/clk-ppc-corenet.c drivers/cpufreq/Kconfig.powerpc drivers/cpufreq/Makefile drivers/cpufreq/ppc-corenet-cpufreq.c drivers/crypto/caam/Kconfig drivers/crypto/caam/Makefile drivers/crypto/caam/ctrl.c drivers/crypto/caam/desc_constr.h drivers/crypto/caam/intern.h drivers/crypto/caam/jr.c drivers/crypto/caam/regs.h drivers/dma/fsldma.c drivers/hwmon/ina2xx.c drivers/iommu/Kconfig drivers/iommu/fsl_pamu.c drivers/iommu/fsl_pamu.h drivers/iommu/fsl_pamu_domain.c drivers/iommu/fsl_pamu_domain.h drivers/misc/Makefile drivers/mmc/card/block.c drivers/mmc/core/core.c drivers/mmc/host/sdhci-esdhc.h drivers/mmc/host/sdhci-pltfm.c drivers/mtd/nand/fsl_ifc_nand.c drivers/net/ethernet/freescale/gianfar.c drivers/net/ethernet/freescale/gianfar.h drivers/net/ethernet/freescale/gianfar_ethtool.c drivers/net/phy/at803x.c drivers/net/phy/phy_device.c drivers/net/phy/vitesse.c drivers/pci/msi.c drivers/staging/Kconfig drivers/staging/Makefile drivers/uio/Kconfig drivers/uio/Makefile drivers/uio/uio.c drivers/usb/host/ehci-fsl.c drivers/vfio/Kconfig drivers/vfio/Makefile include/crypto/algapi.h include/linux/iommu.h include/linux/mmc/sdhci.h include/linux/msi.h include/linux/netdev_features.h include/linux/phy.h include/linux/skbuff.h include/net/ip.h include/uapi/linux/vfio.h net/core/ethtool.c net/ipv4/route.c net/ipv6/route.c
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/coredump.c')
-rw-r--r--arch/powerpc/platforms/cell/spufs/coredump.c89
1 files changed, 25 insertions, 64 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index c9500ea..be6212d 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -27,6 +27,8 @@
#include <linux/gfp.h>
#include <linux/list.h>
#include <linux/syscalls.h>
+#include <linux/coredump.h>
+#include <linux/binfmts.h>
#include <asm/uaccess.h>
@@ -48,44 +50,6 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer,
return ++ret; /* count trailing NULL */
}
-/*
- * These are the only things you should do on a core-file: use only these
- * functions to write out all the necessary info.
- */
-static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset)
-{
- unsigned long limit = rlimit(RLIMIT_CORE);
- ssize_t written;
-
- if (*foffset + nr > limit)
- return -EIO;
-
- written = file->f_op->write(file, addr, nr, &file->f_pos);
- *foffset += written;
-
- if (written != nr)
- return -EIO;
-
- return 0;
-}
-
-static int spufs_dump_align(struct file *file, char *buf, loff_t new_off,
- loff_t *foffset)
-{
- int rc, size;
-
- size = min((loff_t)PAGE_SIZE, new_off - *foffset);
- memset(buf, 0, size);
-
- rc = 0;
- while (rc == 0 && new_off > *foffset) {
- size = min((loff_t)PAGE_SIZE, new_off - *foffset);
- rc = spufs_dump_write(file, buf, size, foffset);
- }
-
- return rc;
-}
-
static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
{
int i, sz, total = 0;
@@ -165,10 +129,10 @@ int spufs_coredump_extra_notes_size(void)
}
static int spufs_arch_write_note(struct spu_context *ctx, int i,
- struct file *file, int dfd, loff_t *foffset)
+ struct coredump_params *cprm, int dfd)
{
loff_t pos = 0;
- int sz, rc, nread, total = 0;
+ int sz, rc, total = 0;
const int bufsz = PAGE_SIZE;
char *name;
char fullname[80], *buf;
@@ -186,42 +150,39 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
en.n_descsz = sz;
en.n_type = NT_SPU;
- rc = spufs_dump_write(file, &en, sizeof(en), foffset);
- if (rc)
- goto out;
+ if (!dump_emit(cprm, &en, sizeof(en)))
+ goto Eio;
- rc = spufs_dump_write(file, fullname, en.n_namesz, foffset);
- if (rc)
- goto out;
+ if (!dump_emit(cprm, fullname, en.n_namesz))
+ goto Eio;
- rc = spufs_dump_align(file, buf, roundup(*foffset, 4), foffset);
- if (rc)
- goto out;
+ if (!dump_align(cprm, 4))
+ goto Eio;
do {
- nread = do_coredump_read(i, ctx, buf, bufsz, &pos);
- if (nread > 0) {
- rc = spufs_dump_write(file, buf, nread, foffset);
- if (rc)
- goto out;
- total += nread;
+ rc = do_coredump_read(i, ctx, buf, bufsz, &pos);
+ if (rc > 0) {
+ if (!dump_emit(cprm, buf, rc))
+ goto Eio;
+ total += rc;
}
- } while (nread == bufsz && total < sz);
+ } while (rc == bufsz && total < sz);
- if (nread < 0) {
- rc = nread;
+ if (rc < 0)
goto out;
- }
-
- rc = spufs_dump_align(file, buf, roundup(*foffset - total + sz, 4),
- foffset);
+ if (!dump_skip(cprm,
+ roundup(cprm->written - total + sz, 4) - cprm->written))
+ goto Eio;
out:
free_page((unsigned long)buf);
return rc;
+Eio:
+ free_page((unsigned long)buf);
+ return -EIO;
}
-int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
+int spufs_coredump_extra_notes_write(struct coredump_params *cprm)
{
struct spu_context *ctx;
int fd, j, rc;
@@ -233,7 +194,7 @@ int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
return rc;
for (j = 0; spufs_coredump_read[j].name != NULL; j++) {
- rc = spufs_arch_write_note(ctx, j, file, fd, foffset);
+ rc = spufs_arch_write_note(ctx, j, cprm, fd);
if (rc) {
spu_release_saved(ctx);
return rc;