diff --git a/util-linux-swapon-btrfs-limitations b/util-linux-swapon-btrfs-limitations deleted file mode 100644 index 59722da..0000000 --- a/util-linux-swapon-btrfs-limitations +++ /dev/null @@ -1,42 +0,0 @@ -From: Jeff Mahoney -Subject: swapon: Document btrfs limitation with swapfiles -References: bnc#616617 - - Btrfs, as of 2.6.35, is unable to allow swapfiles to be used on its - filesystems. This is due to the swapfile implementation wanting to build - an extent map of each block in the file and expecting it to be static - for the life of the swapfile. - - Btrfs can't guarantee this and refuses to return the mapping. The swapfile - implementation just makes a comment about there being holes in the file - - but that's how btrfs denies the mapping. - - This patch adds a section to the swapon manpage to document it. - -Signed-off-by: Jeff Mahoney - ---- - mount/swapon.8 | 12 ++++++++++++ - 1 file changed, 12 insertions(+) - ---- a/mount/swapon.8 -+++ b/mount/swapon.8 -@@ -167,6 +167,18 @@ automatically detects and rewrites swap - suspend data (e.g S1SUSPEND, S2SUSPEND, ...). The problem is that if we don't - do it, then we get data corruption the next time an attempt at unsuspending is - made. -+.PP -+.B swapon -+may not work correctly when using a swap file with some versions of btrfs. -+This is due to the swap file implementation in the kernel expecting to be able -+to write to the file directly, without the assistance of the file system. -+Since btrfs is a copy-on-write file system, the file location may not be -+static and corruption can result. Btrfs actively disallows the use of files -+on its file systems by refusing to map the file. This can be seen in the system -+log as "swapon: swapfile has holes." One possible workaround is to map the -+file to a loopback device. This will allow the file system to determine the -+mapping properly but may come with a performance impact. -+ - .SH SEE ALSO - .BR swapon (2), - .BR swapoff (2), diff --git a/util-linux.changes b/util-linux.changes index d84ec7b..9732cbd 100644 --- a/util-linux.changes +++ b/util-linux.changes @@ -1,13 +1,3 @@ -------------------------------------------------------------------- -Thu Jun 24 23:24:41 CEST 2010 - jeffm@suse.de - -- document btrfs limitation with swapfiles (bnc#616617) - -------------------------------------------------------------------- -Tue Jun 22 16:48:29 UTC 2010 - bg@novell.com - -- hppa specific binaries are parisc{,32,64} - ------------------------------------------------------------------- Tue Jun 1 14:23:23 UTC 2010 - puzel@novell.com diff --git a/util-linux.spec b/util-linux.spec index 2b717aa..1de8871 100644 --- a/util-linux.spec +++ b/util-linux.spec @@ -75,7 +75,6 @@ Patch4: util-linux-2.17.1-losetup-honor-documented-c-option Patch5: util-linux-addpart-use-atoll.patch # bnc#481123 Patch6: util-linux-mount-detect-ro-mount.patch -Patch7: util-linux-swapon-btrfs-limitations ## ## adjtimex ## @@ -166,7 +165,6 @@ unique IDs (UUIDs). %patch4 -p1 %patch5 -p1 %patch6 -p1 -%patch7 -p1 # cd adjtimex-* %patch50 -p1 @@ -351,10 +349,10 @@ rm -f $RPM_BUILD_ROOT%{_mandir}/man8/fdisk.8* %find_lang %{name}-ng %{name}.lang # create list of setarch(8) symlinks find $RPM_BUILD_ROOT%{_bindir}/ -regextype posix-egrep -type l \ - -regex ".*(linux32|linux64|s390|s390x|i386|ppc|ppc64|ppc32|sparc|sparc64|sparc32|sparc32bash|mips|mips64|mips32|ia64|x86_64|parisc|parisc32|parisc64)$" \ + -regex ".*(linux32|linux64|s390|s390x|i386|ppc|ppc64|ppc32|sparc|sparc64|sparc32|sparc32bash|mips|mips64|mips32|ia64|x86_64)$" \ -printf "%{_bindir}/%f\n" >> %{name}.files find $RPM_BUILD_ROOT%{_mandir}/man8 -regextype posix-egrep \ - -regex ".*(linux32|linux64|s390|s390x|i386|ppc|ppc64|ppc32|sparc|sparc64|sparc32|sparc32bash|mips|mips64|mips32|ia64|x86_64|parisc|parisc32|parisc64)\.8.*" \ + -regex ".*(linux32|linux64|s390|s390x|i386|ppc|ppc64|ppc32|sparc|sparc64|sparc32|sparc32bash|mips|mips64|mips32|ia64|x86_64)\.8.*" \ -printf "%{_mandir}/man8/%f*\n" >> %{name}.files %clean