diff options
Diffstat (limited to 'lib/libc/sys/fcntl.2')
| -rw-r--r-- | lib/libc/sys/fcntl.2 | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/lib/libc/sys/fcntl.2 b/lib/libc/sys/fcntl.2 index 92b7440..804b4ab 100644 --- a/lib/libc/sys/fcntl.2 +++ b/lib/libc/sys/fcntl.2 @@ -52,7 +52,8 @@ The argument .Fa fd is a descriptor to be operated on by .Fa cmd -as described below. Depending on the value of +as described below. +Depending on the value of .Fa cmd , .Fn fcntl can take an additional third argument @@ -157,8 +158,10 @@ corresponds to the flag of .Xr open 2 . .It Dv O_DIRECT -Minimize or eliminate the cache effects of reading and writing. The system -will attempt to avoid caching the data you read or write. If it cannot +Minimize or eliminate the cache effects of reading and writing. +The system +will attempt to avoid caching the data you read or write. +If it cannot avoid caching the data, it will minimize the impact the data has on the cache. Use of this flag can drastically reduce performance if not used with care. .It Dv O_ASYNC |
