Update file_append documentation

Signed-off-by: Jens Axboe <axboe@fb.com>

diff --git a/HOWTO b/HOWTO
index 7e77c40372066a56a0f6ab9533b197ca4b630a50..47eff96a9158989f0b178ae168ec25faf7fd2f98 100644 (file)
--- a/HOWTO
+++ b/HOWTO
@@ -438,7 +438,8 @@ filesize=int        Individual file sizes. May be a range, in which case fio
 file_append=bool       Perform IO after the end of the file. Normally fio will
                operate within the size of a file. If this option is set, then
                fio will append to the file instead. This has identical
-               behavior to setting offset to the size of a file.
+               behavior to setting offset to the size of a file. This option
+               is ignored on non-regular files.
 
 fill_device=bool
 fill_fs=bool   Sets size to something really large and waits for ENOSPC (no

diff --git a/fio.1 b/fio.1
index fee5427dbcf32000dcda8ba167f9ed48fd1153b7..91f96e028e553a67753ec8aa9672bbd8a066b53e 100644 (file)
--- a/fio.1
+++ b/fio.1
@@ -390,7 +390,7 @@ same size.
 Perform IO after the end of the file. Normally fio will operate within the
 size of a file. If this option is set, then fio will append to the file
 instead. This has identical behavior to setting \fRoffset\fP to the size
-of a file.
+of a file. This option is ignored on non-regular files.
 .TP
 .BI blocksize \fR=\fPint[,int] "\fR,\fB bs" \fR=\fPint[,int]
 Block size for I/O units.  Default: 4k.  Values for reads, writes, and trims