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| author | Al Viro <viro@zeniv.linux.org.uk> | 2013-03-20 13:19:30 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-03-21 13:11:11 -0400 |
| commit | 06ae43f34bcc07a0b6be8bf78a1c895bcd12c839 (patch) | |
| tree | b74fe0c7e9370dfed956a1607dd10282c9ba1096 /Documentation/volatile-considered-harmful.txt | |
| parent | f6161aa153581da4a3867a2d1a7caf4be19b6ec9 (diff) | |
| download | op-kernel-dev-06ae43f34bcc07a0b6be8bf78a1c895bcd12c839.zip op-kernel-dev-06ae43f34bcc07a0b6be8bf78a1c895bcd12c839.tar.gz | |
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>
Diffstat (limited to 'Documentation/volatile-considered-harmful.txt')
0 files changed, 0 insertions, 0 deletions
