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authorLinus Torvalds <torvalds@linux-foundation.org>2013-05-02 02:51:54 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-02 02:51:54 +0200
commit20b4fb485227404329e41ad15588afad3df23050 (patch)
treef3e099f0ab3da8a93b447203e294d2bb22f6dc05 /fs/compat.c
parentMerge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff)
parentdon't bother with deferred freeing of fdtables (diff)
downloadlinux-20b4fb485227404329e41ad15588afad3df23050.tar.xz
linux-20b4fb485227404329e41ad15588afad3df23050.zip
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull VFS updates from Al Viro, Misc cleanups all over the place, mainly wrt /proc interfaces (switch create_proc_entry to proc_create(), get rid of the deprecated create_proc_read_entry() in favor of using proc_create_data() and seq_file etc). 7kloc removed. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits) don't bother with deferred freeing of fdtables proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h proc: Make the PROC_I() and PDE() macros internal to procfs proc: Supply a function to remove a proc entry by PDE take cgroup_open() and cpuset_open() to fs/proc/base.c ppc: Clean up scanlog ppc: Clean up rtas_flash driver somewhat hostap: proc: Use remove_proc_subtree() drm: proc: Use remove_proc_subtree() drm: proc: Use minor->index to label things, not PDE->name drm: Constify drm_proc_list[] zoran: Don't print proc_dir_entry data in debug reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show() proc: Supply an accessor for getting the data from a PDE's parent airo: Use remove_proc_subtree() rtl8192u: Don't need to save device proc dir PDE rtl8187se: Use a dir under /proc/net/r8180/ proc: Add proc_mkdir_data() proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h} proc: Move PDE_NET() to fs/proc/proc_net.c ...
Diffstat (limited to 'fs/compat.c')
-rw-r--r--fs/compat.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/fs/compat.c b/fs/compat.c
index 5f83ffa42115..d0560c93973d 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1068,190 +1068,6 @@ asmlinkage long compat_sys_getdents64(unsigned int fd,
}
#endif /* ! __ARCH_OMIT_COMPAT_SYS_GETDENTS64 */
-static ssize_t compat_do_readv_writev(int type, struct file *file,
- const struct compat_iovec __user *uvector,
- unsigned long nr_segs, loff_t *pos)
-{
- compat_ssize_t tot_len;
- struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov = iovstack;
- ssize_t ret;
- io_fn_t fn;
- iov_fn_t fnv;
-
- ret = -EINVAL;
- if (!file->f_op)
- goto out;
-
- ret = compat_rw_copy_check_uvector(type, uvector, nr_segs,
- UIO_FASTIOV, iovstack, &iov);
- if (ret <= 0)
- goto out;
-
- tot_len = ret;
- ret = rw_verify_area(type, file, pos, tot_len);
- if (ret < 0)
- goto out;
-
- fnv = NULL;
- if (type == READ) {
- fn = file->f_op->read;
- fnv = file->f_op->aio_read;
- } else {
- fn = (io_fn_t)file->f_op->write;
- fnv = file->f_op->aio_write;
- }
-
- if (fnv)
- ret = do_sync_readv_writev(file, iov, nr_segs, tot_len,
- pos, fnv);
- else
- ret = do_loop_readv_writev(file, iov, nr_segs, pos, fn);
-
-out:
- if (iov != iovstack)
- kfree(iov);
- if ((ret + (type == READ)) > 0) {
- if (type == READ)
- fsnotify_access(file);
- else
- fsnotify_modify(file);
- }
- return ret;
-}
-
-static size_t compat_readv(struct file *file,
- const struct compat_iovec __user *vec,
- unsigned long vlen, loff_t *pos)
-{
- ssize_t ret = -EBADF;
-
- if (!(file->f_mode & FMODE_READ))
- goto out;
-
- ret = -EINVAL;
- if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read))
- goto out;
-
- ret = compat_do_readv_writev(READ, file, vec, vlen, pos);
-
-out:
- if (ret > 0)
- add_rchar(current, ret);
- inc_syscr(current);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_readv(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen)
-{
- struct fd f = fdget(fd);
- ssize_t ret;
- loff_t pos;
-
- if (!f.file)
- return -EBADF;
- pos = f.file->f_pos;
- ret = compat_readv(f.file, vec, vlen, &pos);
- f.file->f_pos = pos;
- fdput(f);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_preadv64(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, loff_t pos)
-{
- struct fd f;
- ssize_t ret;
-
- if (pos < 0)
- return -EINVAL;
- f = fdget(fd);
- if (!f.file)
- return -EBADF;
- ret = -ESPIPE;
- if (f.file->f_mode & FMODE_PREAD)
- ret = compat_readv(f.file, vec, vlen, &pos);
- fdput(f);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_preadv(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high)
-{
- loff_t pos = ((loff_t)pos_high << 32) | pos_low;
- return compat_sys_preadv64(fd, vec, vlen, pos);
-}
-
-static size_t compat_writev(struct file *file,
- const struct compat_iovec __user *vec,
- unsigned long vlen, loff_t *pos)
-{
- ssize_t ret = -EBADF;
-
- if (!(file->f_mode & FMODE_WRITE))
- goto out;
-
- ret = -EINVAL;
- if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
- goto out;
-
- ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos);
-
-out:
- if (ret > 0)
- add_wchar(current, ret);
- inc_syscw(current);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_writev(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen)
-{
- struct fd f = fdget(fd);
- ssize_t ret;
- loff_t pos;
-
- if (!f.file)
- return -EBADF;
- pos = f.file->f_pos;
- ret = compat_writev(f.file, vec, vlen, &pos);
- f.file->f_pos = pos;
- fdput(f);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_pwritev64(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, loff_t pos)
-{
- struct fd f;
- ssize_t ret;
-
- if (pos < 0)
- return -EINVAL;
- f = fdget(fd);
- if (!f.file)
- return -EBADF;
- ret = -ESPIPE;
- if (f.file->f_mode & FMODE_PWRITE)
- ret = compat_writev(f.file, vec, vlen, &pos);
- fdput(f);
- return ret;
-}
-
-asmlinkage ssize_t
-compat_sys_pwritev(unsigned long fd, const struct compat_iovec __user *vec,
- unsigned long vlen, u32 pos_low, u32 pos_high)
-{
- loff_t pos = ((loff_t)pos_high << 32) | pos_low;
- return compat_sys_pwritev64(fd, vec, vlen, pos);
-}
-
/*
* Exactly like fs/open.c:sys_open(), except that it doesn't set the
* O_LARGEFILE flag.