Date: Sun, 22 Oct 2017 23:53:45 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 223015] [tmpfs] tmpfs does not support sparse files Message-ID: <bug-223015-3630-RgQFtcshXu@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-223015-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-223015-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D223015 Keith White <kwhite@site.uottawa.ca> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #187197|0 |1 is obsolete| | --- Comment #6 from Keith White <kwhite@site.uottawa.ca> --- Created attachment 187384 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D187384&action= =3Dedit POC for using resident_page_count This patch allows me to use large files with holes. e.g. # mkdir /tmp/_x # mount -t tmpfs -osize=3D10m tmp /tmp/_x # truncate -s4g /tmp/_x/4g # ls -ls /tmp/_x/4g 0 -rw-r--r-- 1 root wheel 4294967296 Oct 22 19:51 /tmp/_x/4g # df /tmp/_x Filesystem 1K-blocks Used Avail Capacity Mounted on tmpfs 10240 4 10236 0% /tmp/_x # du /tmp/_x 0 /tmp/_x # umount /tmp/_x # rmdir /tmp/_x --=20 You are receiving this mail because: You are the assignee for the bug.=
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