search for: new_log

Displaying 3 results from an estimated 3 matches for "new_log".

2007 Dec 18
0
branch cuts of log() and sqrt()
...ase find following two context diffs for Log.Rd and Math.Rd. [The pedants amongst us will observe that both sqrt() and log() have a branch point at complex infinity, which is not mentioned in the patch. Comments anyone?] rksh 245-10:~/scratch/R-devel/src/library/base/man% diff -c Log.Rd new_Log.Rd *** Log.Rd Fri Jul 27 16:51:42 2007 --- new_Log.Rd Tue Dec 18 08:57:03 2007 *************** *** 66,71 **** --- 66,75 ---- \code{logb} is a wrapper for \code{log} for compatibility with S. If (S3 or S4) methods are set for \code{log} they will be dispatched. Do not set S4...
2019 May 07
4
[PATCH RFC] vhost: don't use kmap() to log dirty pages
Vhost log dirty pages directly to a userspace bitmap through GUP and kmap_atomic() since kernel doesn't have a set_bit_to_user() helper. This will cause issues for the arch that has virtually tagged caches. The way to fix is to keep using userspace virtual address. Fortunately, futex has a cmpxchg to userspace memory helper futex_atomic_cmpxchg_inatomic(). So switch to use it to exchange the
2019 May 07
4
[PATCH RFC] vhost: don't use kmap() to log dirty pages
Vhost log dirty pages directly to a userspace bitmap through GUP and kmap_atomic() since kernel doesn't have a set_bit_to_user() helper. This will cause issues for the arch that has virtually tagged caches. The way to fix is to keep using userspace virtual address. Fortunately, futex has a cmpxchg to userspace memory helper futex_atomic_cmpxchg_inatomic(). So switch to use it to exchange the