diff options
Diffstat (limited to 'fs/coredump.c')
| -rw-r--r-- | fs/coredump.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/fs/coredump.c b/fs/coredump.c index eb9c92c9b20f..ae6b05629ca1 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -38,7 +38,7 @@ #include <linux/path.h> #include <linux/timekeeping.h> -#include <asm/uaccess.h> +#include <linux/uaccess.h> #include <asm/mmu_context.h> #include <asm/tlb.h> #include <asm/exec.h> @@ -833,3 +833,21 @@ int dump_align(struct coredump_params *cprm, int align) return mod ? dump_skip(cprm, align - mod) : 1; } EXPORT_SYMBOL(dump_align); + +/* + * Ensures that file size is big enough to contain the current file + * postion. This prevents gdb from complaining about a truncated file + * if the last "write" to the file was dump_skip. + */ +void dump_truncate(struct coredump_params *cprm) +{ + struct file *file = cprm->file; + loff_t offset; + + if (file->f_op->llseek && file->f_op->llseek != no_llseek) { + offset = file->f_op->llseek(file, 0, SEEK_CUR); + if (i_size_read(file->f_mapping->host) < offset) + do_truncate(file->f_path.dentry, offset, 0, file); + } +} +EXPORT_SYMBOL(dump_truncate); |