Module Name: src Committed By: dholland Date: Fri Jul 25 08:30:47 UTC 2014
Modified Files: src/include: unistd.h src/lib/libc/sys: Makefile.inc truncate.2 Added Files: src/lib/libc/sys: fdiscard.2 Log Message: Add userlevel manifestations of posix_fallocate and fdiscard, in unistd.h and libc, and add a man page. Allow wiggle room in the man page for implementations of fallocate that either (a) don't fully unwind on failure, leaving new blocks allocated without changing the file size, or (b) create only in-memory transient reservations that disappear when crashing or rebooting. Also, add crossreference to fdiscard from ftruncate(2), and remove the old BUGS entry from there that called for a generalized version that allows discarding ranges of a file: that's what fdiscard is. To generate a diff of this commit: cvs rdiff -u -r1.141 -r1.142 src/include/unistd.h cvs rdiff -u -r1.223 -r1.224 src/lib/libc/sys/Makefile.inc cvs rdiff -u -r0 -r1.1 src/lib/libc/sys/fdiscard.2 cvs rdiff -u -r1.28 -r1.29 src/lib/libc/sys/truncate.2 Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.