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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-15 04:13:32 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-15 04:13:32 +0300
commit581bfce969cbfc7ce43ee92273be9cb7c3fdfa61 (patch)
tree0a693778ce39c49b9b7d93d0d6795c576896f5cf /fs/binfmt_elf.c
parentcc73fee0bae2d66594d1fa2df92bbd783aa98e04 (diff)
parent9725d4cef62229b4ec4c912e0db0761e7d400650 (diff)
downloadlinux-581bfce969cbfc7ce43ee92273be9cb7c3fdfa61.tar.xz
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more set_fs removal from Al Viro: "Christoph's 'use kernel_read and friends rather than open-coding set_fs()' series" * 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: unexport vfs_readv and vfs_writev fs: unexport vfs_read and vfs_write fs: unexport __vfs_read/__vfs_write lustre: switch to kernel_write gadget/f_mass_storage: stop messing with the address limit mconsole: switch to kernel_read btrfs: switch write_buf to kernel_write net/9p: switch p9_fd_read to kernel_write mm/nommu: switch do_mmap_private to kernel_read serial2002: switch serial2002_tty_write to kernel_{read/write} fs: make the buf argument to __kernel_write a void pointer fs: fix kernel_write prototype fs: fix kernel_read prototype fs: move kernel_read to fs/read_write.c fs: move kernel_write to fs/read_write.c autofs4: switch autofs4_write to __kernel_write ashmem: switch to ->read_iter
Diffstat (limited to 'fs/binfmt_elf.c')
-rw-r--r--fs/binfmt_elf.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index ec45d24875b1..73b01e474fdc 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -409,6 +409,7 @@ static struct elf_phdr *load_elf_phdrs(struct elfhdr *elf_ex,
{
struct elf_phdr *elf_phdata = NULL;
int retval, size, err = -1;
+ loff_t pos = elf_ex->e_phoff;
/*
* If the size of this structure has changed, then punt, since
@@ -432,8 +433,7 @@ static struct elf_phdr *load_elf_phdrs(struct elfhdr *elf_ex,
goto out;
/* Read in the program headers */
- retval = kernel_read(elf_file, elf_ex->e_phoff,
- (char *)elf_phdata, size);
+ retval = kernel_read(elf_file, elf_phdata, size, &pos);
if (retval != size) {
err = (retval < 0) ? retval : -EIO;
goto out;
@@ -698,6 +698,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
struct elfhdr interp_elf_ex;
} *loc;
struct arch_elf_state arch_state = INIT_ARCH_ELF_STATE;
+ loff_t pos;
loc = kmalloc(sizeof(*loc), GFP_KERNEL);
if (!loc) {
@@ -750,9 +751,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
if (!elf_interpreter)
goto out_free_ph;
- retval = kernel_read(bprm->file, elf_ppnt->p_offset,
- elf_interpreter,
- elf_ppnt->p_filesz);
+ pos = elf_ppnt->p_offset;
+ retval = kernel_read(bprm->file, elf_interpreter,
+ elf_ppnt->p_filesz, &pos);
if (retval != elf_ppnt->p_filesz) {
if (retval >= 0)
retval = -EIO;
@@ -776,9 +777,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
would_dump(bprm, interpreter);
/* Get the exec headers */
- retval = kernel_read(interpreter, 0,
- (void *)&loc->interp_elf_ex,
- sizeof(loc->interp_elf_ex));
+ pos = 0;
+ retval = kernel_read(interpreter, &loc->interp_elf_ex,
+ sizeof(loc->interp_elf_ex), &pos);
if (retval != sizeof(loc->interp_elf_ex)) {
if (retval >= 0)
retval = -EIO;
@@ -1175,9 +1176,10 @@ static int load_elf_library(struct file *file)
unsigned long elf_bss, bss, len;
int retval, error, i, j;
struct elfhdr elf_ex;
+ loff_t pos = 0;
error = -ENOEXEC;
- retval = kernel_read(file, 0, (char *)&elf_ex, sizeof(elf_ex));
+ retval = kernel_read(file, &elf_ex, sizeof(elf_ex), &pos);
if (retval != sizeof(elf_ex))
goto out;
@@ -1201,7 +1203,8 @@ static int load_elf_library(struct file *file)
eppnt = elf_phdata;
error = -ENOEXEC;
- retval = kernel_read(file, elf_ex.e_phoff, (char *)eppnt, j);
+ pos = elf_ex.e_phoff;
+ retval = kernel_read(file, eppnt, j, &pos);
if (retval != j)
goto out_free_ph;