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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 03:13:32 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-15 03:13:32 +0200 |
commit | 581bfce969cbfc7ce43ee92273be9cb7c3fdfa61 (patch) | |
tree | 0a693778ce39c49b9b7d93d0d6795c576896f5cf /fs/binfmt_elf.c | |
parent | Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro... (diff) | |
parent | fs: unexport vfs_readv and vfs_writev (diff) | |
download | linux-581bfce969cbfc7ce43ee92273be9cb7c3fdfa61.tar.xz linux-581bfce969cbfc7ce43ee92273be9cb7c3fdfa61.zip |
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.c | 23 |
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; |