| commit | 06ae43f34bcc07a0b6be8bf78a1c895bcd12c839 | [log] [tgz] |
|---|---|---|
| author | Al Viro <viro@zeniv.linux.org.uk> | Wed Mar 20 13:19:30 2013 -0400 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Thu Mar 21 13:11:11 2013 -0400 |
| tree | b74fe0c7e9370dfed956a1607dd10282c9ba1096 | |
| parent | f6161aa153581da4a3867a2d1a7caf4be19b6ec9 [diff] |
Don't bother with redoing rw_verify_area() from default_file_splice_from() default_file_splice_from() ends up calling vfs_write() (via very convoluted callchain). It's an overkill, since we already have done rw_verify_area() in the caller by the time we call vfs_write() we are under set_fs(KERNEL_DS), so access_ok() is also pointless. Add a new helper (__kernel_write()), use it instead of kernel_write() in there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>