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Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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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
This commit is contained in:
Linus Torvalds
2017-09-14 18:13:32 -07:00
parent cc73fee0ba 9725d4cef6
commit 581bfce969
31 changed files with 147 additions and 236 deletions
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18
fs/binfmt_flat.c
View File

@@ -176,19 +176,14 @@ static int create_flat_tables(struct linux_binprm *bprm, unsigned long arg_start
#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
#define RESERVED 0xC0 /* bit 6,7: reserved */
static int decompress_exec(
struct linux_binprm *bprm,
unsigned long offset,
char *dst,
long len,
int fd)
static int decompress_exec(struct linux_binprm *bprm, loff_t fpos, char *dst,
long len, int fd)
{
unsigned char *buf;
z_stream strm;
loff_t fpos;
int ret, retval;
pr_debug("decompress_exec(offset=%lx,buf=%p,len=%lx)\n", offset, dst, len);
pr_debug("decompress_exec(offset=%llx,buf=%p,len=%lx)\n", fpos, dst, len);
memset(&strm, 0, sizeof(strm));
strm.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
@@ -202,13 +197,11 @@ static int decompress_exec(
}
/* Read in first chunk of data and parse gzip header. */
fpos = offset;
ret = kernel_read(bprm->file, offset, buf, LBUFSIZE);
ret = kernel_read(bprm->file, buf, LBUFSIZE, &fpos);
strm.next_in = buf;
strm.avail_in = ret;
strm.total_in = 0;
fpos += ret;
retval = -ENOEXEC;
@@ -274,7 +267,7 @@ static int decompress_exec(
}
while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) {
ret = kernel_read(bprm->file, fpos, buf, LBUFSIZE);
ret = kernel_read(bprm->file, buf, LBUFSIZE, &fpos);
if (ret <= 0)
break;
len -= ret;
@@ -282,7 +275,6 @@ static int decompress_exec(
strm.next_in = buf;
strm.avail_in = ret;
strm.total_in = 0;
fpos += ret;
}
if (ret < 0) {