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    Subject[Patch 17/21] Calculate the size of the core file
    Calculate the size of the core file

    Signed-off-by: Suzuki K. Poulose <suzuki@in.ibm.com>
    Signed-off-by: Ananth N. Mavinakayanahalli <ananth@in.ibm.com>

    ---
    fs/proc/gencore-elf.c | 6 ++++++
    fs/proc/gencore.h | 1 +
    2 files changed, 7 insertions(+)

    Index: linux-2.6.36-rc7/fs/proc/gencore.h
    ===================================================================
    --- linux-2.6.36-rc7.orig/fs/proc/gencore.h
    +++ linux-2.6.36-rc7/fs/proc/gencore.h
    @@ -27,6 +27,7 @@ struct core_proc {
    size_t elf_buflen; /* size of elf_buf */
    size_t nphdrs; /* number of phdrs */
    size_t notes_size;
    + size_t size;
    };

    extern void try_to_freeze_core_threads(struct core_proc *cp);
    Index: linux-2.6.36-rc7/fs/proc/gencore-elf.c
    ===================================================================
    --- linux-2.6.36-rc7.orig/fs/proc/gencore-elf.c
    +++ linux-2.6.36-rc7/fs/proc/gencore-elf.c
    @@ -310,6 +310,9 @@ static int create_elf_header(struct core
    dataoff, cp->nphdrs);
    dataoff += sizeof(struct elf_shdr);
    }
    +
    + cp->size = dataoff;
    +
    /* Store the notes */
    tinfo = cp->tinfo;
    do {
    @@ -371,6 +374,9 @@ ssize_t elf_read_gencore(struct core_pro
    }
    }

    + if (*fpos > cp->size)
    + goto out;
    +
    out:
    return ret;
    }

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