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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2005-04-11 15:04:27 +0000 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2005-04-11 15:04:27 +0000 |
| commit | f21a10c814f9548c84bf7e88404e5979d1b1f0c2 (patch) | |
| tree | eca7453ce8fb80b6f67a8df5c1b8dad158bca8c5 /man2/posix_fadvise.2 | |
| parent | 2b44301c2ad3374a07bc271696f310a413b13e99 (diff) | |
Noted kernel version where posix_fadvise() appeared and
noted bug in handling of 'len' in kernels < 2.6.6.
Diffstat (limited to 'man2/posix_fadvise.2')
| -rw-r--r-- | man2/posix_fadvise.2 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/man2/posix_fadvise.2 b/man2/posix_fadvise.2 index 814e3b21f..59a3d1495 100644 --- a/man2/posix_fadvise.2 +++ b/man2/posix_fadvise.2 @@ -21,6 +21,8 @@ .\" Formatted or processed versions of this manual, if unaccompanied by .\" the source, must acknowledge the copyright and authors of this work. .\" +.\" 2005-04-08 mtk, noted kernel version and added BUGS +.\" .TH POSIX_FADVISE 2 "14 Feb 2003" "Linux 2.5.60" "Linux Programmer's Manual" .SH NAME posix_fadvise \- predeclare an access pattern for file data @@ -78,6 +80,10 @@ An invalid value was specified for \fIadvice\fP. The specified file descriptor refers to a pipe or FIFO. (Linux actually returns EINVAL in this case.) .SH NOTES +.BR posix_fadvise +appeared in kernel 2.5.60. +.\" Actually as fadvise64() -- MTK + Under Linux, \fBPOSIX_FADV_NORMAL\fP sets the readahead window to the default size for the backing device; \fBPOSIX_FADV_SEQUENTIAL\fP doubles this size, and \fBPOSIX_FADV_RANDOM\fP disables file readahead entirely. @@ -103,5 +109,10 @@ SUSv3 (Advanced Realtime Option), POSIX 1003.1-2003. Note that the type of the .I len parameter was changed from size_t to off_t in POSIX 1003.1-2003 TC5. +.SH BUGS +In kernels before 2.6.6, if +.I len +was specified as 0, then this was interpreted literally as "zero bytes", +rather than as meaning "all bytes through to the end of the file". .SH "SEE ALSO" .BR posix_fallocate "(2), " posix_madvise "(2)." |