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authorDmitry Kasatkin <d.kasatkin@samsung.com>2014-11-05 17:01:17 +0200
committerMimi Zohar <zohar@linux.vnet.ibm.com>2014-11-17 23:14:22 -0500
commit6fb5032ebb1c5b852461d64ee33829081de8ca61 (patch)
tree1645235b1ff4461a8f67ed8fec24e0c15c64c614 /security/integrity/iint.c
parentima: require signature based appraisal (diff)
downloadlinux-dev-6fb5032ebb1c5b852461d64ee33829081de8ca61.tar.xz
linux-dev-6fb5032ebb1c5b852461d64ee33829081de8ca61.zip
VFS: refactor vfs_read()
integrity_kernel_read() duplicates the file read operations code in vfs_read(). This patch refactors vfs_read() code creating a helper function __vfs_read(). It is used by both vfs_read() and integrity_kernel_read(). Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Diffstat (limited to '')
-rw-r--r--security/integrity/iint.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index df45640fbac6..dbb6d141c3db 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -184,20 +184,16 @@ int integrity_kernel_read(struct file *file, loff_t offset,
{
mm_segment_t old_fs;
char __user *buf = (char __user *)addr;
- ssize_t ret = -EINVAL;
+ ssize_t ret;
if (!(file->f_mode & FMODE_READ))
return -EBADF;
old_fs = get_fs();
set_fs(get_ds());
- if (file->f_op->read)
- ret = file->f_op->read(file, buf, count, &offset);
- else if (file->f_op->aio_read)
- ret = do_sync_read(file, buf, count, &offset);
- else if (file->f_op->read_iter)
- ret = new_sync_read(file, buf, count, &offset);
+ ret = __vfs_read(file, buf, count, &offset);
set_fs(old_fs);
+
return ret;
}