Patchwork sstate: Add a two character subdirectory to the sstate directory layout

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Submitter Richard Purdie
Date July 25, 2012, 9:09 p.m.
Message ID <1343250562.29991.0.camel@ted>
Download mbox | patch
Permalink /patch/33083/
State Not Applicable
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Comments

Richard Purdie - July 25, 2012, 9:09 p.m.
Currently all sstate files are placed into one directory. This does not scale and
causes a variety of filesystem issues. This patch adds a two character subdirectory
to the layout (based on the first two characters of the hash) so that files
can be split into several directories.

This should help performance of sstate in most cases by avoding creating directories with 
huge numbers of files.

The SSTATE_MIRRORS syntax needs updating to account for the extra path element by
the addition of a PATH item, for example:

SSTATE_MIRRORS = "file://.* file:///some/path/to/sstate-cache/PATH"
SSTATE_MIRRORS = "file://.* http://192.168.1.23/sstate-cache/PATH"

This change also sets the scene for using things like lsb-release in
the 

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---
McClintock Matthew-B29882 - July 25, 2012, 10:12 p.m.
On Wed, Jul 25, 2012 at 4:09 PM, Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:
> Currently all sstate files are placed into one directory. This does not scale and
> causes a variety of filesystem issues. This patch adds a two character subdirectory
> to the layout (based on the first two characters of the hash) so that files
> can be split into several directories.
>
> This should help performance of sstate in most cases by avoding creating directories with
> huge numbers of files.
>
> The SSTATE_MIRRORS syntax needs updating to account for the extra path element by
> the addition of a PATH item, for example:
>
> SSTATE_MIRRORS = "file://.* file:///some/path/to/sstate-cache/PATH"
> SSTATE_MIRRORS = "file://.* http://192.168.1.23/sstate-cache/PATH"
>
> This change also sets the scene for using things like lsb-release in
> the
>
> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

What about backwards compatibility?

-M

> ---
> diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
> index 570b371..d00779a 100644
> --- a/meta/classes/sstate.bbclass
> +++ b/meta/classes/sstate.bbclass
> @@ -4,16 +4,21 @@ SSTATE_MANIFESTS ?= "${TMPDIR}/sstate-control"
>  SSTATE_MANFILEBASE = "${SSTATE_MANIFESTS}/manifest-${SSTATE_MANMACH}-"
>  SSTATE_MANFILEPREFIX = "${SSTATE_MANFILEBASE}${PN}"
>
> +def generate_sstatefn(spec, hash, d):
> +    if not hash:
> +        hash = "INVALID"
> +    return hash[:2] + "/" + spec + hash
>
>  SSTATE_PKGARCH    = "${PACKAGE_ARCH}"
>  SSTATE_PKGSPEC    = "sstate-${PN}-${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}-${PV}-${PR}-${SSTATE_PKGARCH}-${SSTATE_VERSION}-"
> -SSTATE_PKGNAME    = "${SSTATE_PKGSPEC}${BB_TASKHASH}"
> +SSTATE_PKGNAME    = "${@generate_sstatefn(d.getVar('SSTATE_PKGSPEC', True), d.getVar('BB_TASKHASH', True), d)}"
>  SSTATE_PKG        = "${SSTATE_DIR}/${SSTATE_PKGNAME}"
> +SSTATE_PATHSPEC   = "${SSTATE_DIR}/*/${SSTATE_PKGSPEC}"
>
>  SSTATE_SCAN_FILES ?= "*.la *-config *_config"
>  SSTATE_SCAN_CMD ?= 'find ${SSTATE_BUILDDIR} \( -name "${@"\" -o -name \"".join(d.getVar("SSTATE_SCAN_FILES", True).split())}" \) -type f'
>
> -BB_HASHFILENAME = "${SSTATE_PKGNAME}"
> +BB_HASHFILENAME = "${SSTATE_PKGSPEC}"
>
>  SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
>
> @@ -158,10 +163,11 @@ def sstate_installpkg(ss, d):
>          oe.path.remove(dir)
>
>      sstateinst = d.expand("${WORKDIR}/sstate-install-%s/" % ss['name'])
> +    sstatefetch = d.getVar('SSTATE_PKGNAME', True) + '_' + ss['name'] + ".tgz"
>      sstatepkg = d.getVar('SSTATE_PKG', True) + '_' + ss['name'] + ".tgz"
>
>      if not os.path.exists(sstatepkg):
> -       pstaging_fetch(sstatepkg, d)
> +       pstaging_fetch(sstatefetch, sstatepkg, d)
>
>      if not os.path.isfile(sstatepkg):
>          bb.note("Staging package %s does not exist" % sstatepkg)
> @@ -223,8 +229,7 @@ def sstate_installpkg(ss, d):
>  def sstate_clean_cachefile(ss, d):
>      import oe.path
>
> -    sstatepkgdir = d.getVar('SSTATE_DIR', True)
> -    sstatepkgfile = sstatepkgdir + '/' + d.getVar('SSTATE_PKGSPEC', True) + "*_" + ss['name'] + ".tgz*"
> +    sstatepkgfile = d.getVar('SSTATE_PATHSPEC', True) + "*_" + ss['name'] + ".tgz*"
>      bb.note("Removing %s" % sstatepkgfile)
>      oe.path.remove(sstatepkgfile)
>
> @@ -417,7 +422,7 @@ def sstate_package(ss, d):
>
>      return
>
> -def pstaging_fetch(sstatepkg, d):
> +def pstaging_fetch(sstatefetch, sstatepkg, d):
>      import bb.fetch2
>
>      # Only try and fetch if the user has configured a mirror
> @@ -430,7 +435,7 @@ def pstaging_fetch(sstatepkg, d):
>      bb.data.update_data(localdata)
>
>      dldir = localdata.expand("${SSTATE_DIR}")
> -    srcuri = "file://" + os.path.basename(sstatepkg)
> +    srcuri = "file://" + sstatefetch
>
>      bb.mkdirhier(dldir)
>
> @@ -519,8 +524,7 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
>      }
>
>      for task in range(len(sq_fn)):
> -        sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
> -        sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
> +        sstatefile = d.expand("${SSTATE_DIR}/" + generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
>          if os.path.exists(sstatefile):
>              bb.debug(2, "SState: Found valid sstate file %s" % sstatefile)
>              ret.append(task)
> @@ -544,10 +548,9 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
>              if task in ret:
>                  continue
>
> -            sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
> -            sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
> +            sstatefile = d.expand(generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
>
> -            srcuri = "file://" + os.path.basename(sstatefile)
> +            srcuri = "file://" + sstatefile
>              localdata.setVar('SRC_URI', srcuri)
>              bb.debug(2, "SState: Attempting to fetch %s" % srcuri)
>
>
>
>
>
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
Martin Jansa - Aug. 2, 2012, 1:53 p.m.
On Wed, Jul 25, 2012 at 10:09:22PM +0100, Richard Purdie wrote:
> Currently all sstate files are placed into one directory. This does not scale and
> causes a variety of filesystem issues. This patch adds a two character subdirectory
> to the layout (based on the first two characters of the hash) so that files
> can be split into several directories.
> 
> This should help performance of sstate in most cases by avoding creating directories with 
> huge numbers of files.
> 
> The SSTATE_MIRRORS syntax needs updating to account for the extra path element by
> the addition of a PATH item, for example:
> 
> SSTATE_MIRRORS = "file://.* file:///some/path/to/sstate-cache/PATH"
> SSTATE_MIRRORS = "file://.* http://192.168.1.23/sstate-cache/PATH"
> 
> This change also sets the scene for using things like lsb-release in
> the 

Is it possible to create 2nd level cache with this?

I have some server with slow upload but fully populated sstate-cache.

So on server with faster upload which could be used as offical
SSTATE_MIRROR for SHR distro I would like to add

SSTATE_MIRRORS ?= "file://.* http://slow-server/sstate-cache/PATH"

And then sync my sstate-cache directory to public accessible web root (with rsync).

Problem is that now sstate-cache has all files in slightly different 
layout then original sstate-cache on slow server. From what I see I guess 
it finds URL with correct prefix "sstate-cache/Gentoo-2.1/0d" and downloads it 
directly to sstate-cache dir (and adds .done)

OE @ ~/oe-core $ ll sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-*populate-lic*
-rw-r--r-- 1 bitbake bitbake 9257 Jul 30 12:31 sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz
-rw-r--r-- 1 bitbake bitbake    0 Aug  2 15:40 sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz.done

And then creates symlink in right prefix back to absolute path of sstate-cache/file:
OE @ ~/oe-core $ ll sstate-cache/Gentoo-2.1/0d/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-*populate-lic*
lrwxrwxrwx 1 bitbake bitbake 123 Aug  2 15:40 sstate-cache/Gentoo-2.1/0d/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz -> 
/OE/oe-core/sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz

But after sstate-cache directory is rsynced somewhere else and oe-core/sstate-cache is removed, 
all those symlinks point nowhere and public sstate-cache is unusable.

Can we have relative paths used in symlinks or even instruct fetcher to download that 
file directly to right prefix?

Cheers,

> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
> ---
> diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
> index 570b371..d00779a 100644
> --- a/meta/classes/sstate.bbclass
> +++ b/meta/classes/sstate.bbclass
> @@ -4,16 +4,21 @@ SSTATE_MANIFESTS ?= "${TMPDIR}/sstate-control"
>  SSTATE_MANFILEBASE = "${SSTATE_MANIFESTS}/manifest-${SSTATE_MANMACH}-"
>  SSTATE_MANFILEPREFIX = "${SSTATE_MANFILEBASE}${PN}"
>  
> +def generate_sstatefn(spec, hash, d):
> +    if not hash:
> +        hash = "INVALID"
> +    return hash[:2] + "/" + spec + hash
>  
>  SSTATE_PKGARCH    = "${PACKAGE_ARCH}"
>  SSTATE_PKGSPEC    = "sstate-${PN}-${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}-${PV}-${PR}-${SSTATE_PKGARCH}-${SSTATE_VERSION}-"
> -SSTATE_PKGNAME    = "${SSTATE_PKGSPEC}${BB_TASKHASH}"
> +SSTATE_PKGNAME    = "${@generate_sstatefn(d.getVar('SSTATE_PKGSPEC', True), d.getVar('BB_TASKHASH', True), d)}"
>  SSTATE_PKG        = "${SSTATE_DIR}/${SSTATE_PKGNAME}"
> +SSTATE_PATHSPEC   = "${SSTATE_DIR}/*/${SSTATE_PKGSPEC}"
>  
>  SSTATE_SCAN_FILES ?= "*.la *-config *_config"
>  SSTATE_SCAN_CMD ?= 'find ${SSTATE_BUILDDIR} \( -name "${@"\" -o -name \"".join(d.getVar("SSTATE_SCAN_FILES", True).split())}" \) -type f'
>  
> -BB_HASHFILENAME = "${SSTATE_PKGNAME}"
> +BB_HASHFILENAME = "${SSTATE_PKGSPEC}"
>  
>  SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
>  
> @@ -158,10 +163,11 @@ def sstate_installpkg(ss, d):
>          oe.path.remove(dir)
>  
>      sstateinst = d.expand("${WORKDIR}/sstate-install-%s/" % ss['name'])
> +    sstatefetch = d.getVar('SSTATE_PKGNAME', True) + '_' + ss['name'] + ".tgz"
>      sstatepkg = d.getVar('SSTATE_PKG', True) + '_' + ss['name'] + ".tgz"
>  
>      if not os.path.exists(sstatepkg):
> -       pstaging_fetch(sstatepkg, d)
> +       pstaging_fetch(sstatefetch, sstatepkg, d)
>  
>      if not os.path.isfile(sstatepkg):
>          bb.note("Staging package %s does not exist" % sstatepkg)
> @@ -223,8 +229,7 @@ def sstate_installpkg(ss, d):
>  def sstate_clean_cachefile(ss, d):
>      import oe.path
>  
> -    sstatepkgdir = d.getVar('SSTATE_DIR', True)
> -    sstatepkgfile = sstatepkgdir + '/' + d.getVar('SSTATE_PKGSPEC', True) + "*_" + ss['name'] + ".tgz*"
> +    sstatepkgfile = d.getVar('SSTATE_PATHSPEC', True) + "*_" + ss['name'] + ".tgz*"
>      bb.note("Removing %s" % sstatepkgfile)
>      oe.path.remove(sstatepkgfile)
>  
> @@ -417,7 +422,7 @@ def sstate_package(ss, d):
>  
>      return
>  
> -def pstaging_fetch(sstatepkg, d):
> +def pstaging_fetch(sstatefetch, sstatepkg, d):
>      import bb.fetch2
>  
>      # Only try and fetch if the user has configured a mirror
> @@ -430,7 +435,7 @@ def pstaging_fetch(sstatepkg, d):
>      bb.data.update_data(localdata)
>  
>      dldir = localdata.expand("${SSTATE_DIR}")
> -    srcuri = "file://" + os.path.basename(sstatepkg)
> +    srcuri = "file://" + sstatefetch
>  
>      bb.mkdirhier(dldir)
>  
> @@ -519,8 +524,7 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
>      }
>  
>      for task in range(len(sq_fn)):
> -        sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
> -        sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
> +        sstatefile = d.expand("${SSTATE_DIR}/" + generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
>          if os.path.exists(sstatefile):
>              bb.debug(2, "SState: Found valid sstate file %s" % sstatefile)
>              ret.append(task)
> @@ -544,10 +548,9 @@ def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
>              if task in ret:
>                  continue
>  
> -            sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
> -            sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
> +            sstatefile = d.expand(generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
>  
> -            srcuri = "file://" + os.path.basename(sstatefile)
> +            srcuri = "file://" + sstatefile
>              localdata.setVar('SRC_URI', srcuri)
>              bb.debug(2, "SState: Attempting to fetch %s" % srcuri)
>  
> 
> 
> 
> 
> _______________________________________________
> Openembedded-devel mailing list
> Openembedded-devel@lists.openembedded.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-devel
Martin Jansa - Aug. 2, 2012, 2:14 p.m.
On Thu, Aug 02, 2012 at 03:53:35PM +0200, Martin Jansa wrote:
> On Wed, Jul 25, 2012 at 10:09:22PM +0100, Richard Purdie wrote:
> > Currently all sstate files are placed into one directory. This does not scale and
> > causes a variety of filesystem issues. This patch adds a two character subdirectory
> > to the layout (based on the first two characters of the hash) so that files
> > can be split into several directories.
> > 
> > This should help performance of sstate in most cases by avoding creating directories with 
> > huge numbers of files.
> > 
> > The SSTATE_MIRRORS syntax needs updating to account for the extra path element by
> > the addition of a PATH item, for example:
> > 
> > SSTATE_MIRRORS = "file://.* file:///some/path/to/sstate-cache/PATH"
> > SSTATE_MIRRORS = "file://.* http://192.168.1.23/sstate-cache/PATH"
> > 
> > This change also sets the scene for using things like lsb-release in
> > the 
> 
> Is it possible to create 2nd level cache with this?
> 
> I have some server with slow upload but fully populated sstate-cache.
> 
> So on server with faster upload which could be used as offical
> SSTATE_MIRROR for SHR distro I would like to add
> 
> SSTATE_MIRRORS ?= "file://.* http://slow-server/sstate-cache/PATH"
> 
> And then sync my sstate-cache directory to public accessible web root (with rsync).
> 
> Problem is that now sstate-cache has all files in slightly different 
> layout then original sstate-cache on slow server. From what I see I guess 
> it finds URL with correct prefix "sstate-cache/Gentoo-2.1/0d" and downloads it 
> directly to sstate-cache dir (and adds .done)
> 
> OE @ ~/oe-core $ ll sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-*populate-lic*
> -rw-r--r-- 1 bitbake bitbake 9257 Jul 30 12:31 sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz
> -rw-r--r-- 1 bitbake bitbake    0 Aug  2 15:40 sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz.done
> 
> And then creates symlink in right prefix back to absolute path of sstate-cache/file:
> OE @ ~/oe-core $ ll sstate-cache/Gentoo-2.1/0d/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-*populate-lic*
> lrwxrwxrwx 1 bitbake bitbake 123 Aug  2 15:40 sstate-cache/Gentoo-2.1/0d/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz -> 
> /OE/oe-core/sstate-cache/sstate-apr-native-x86_64-linux-1.4.6-r1-x86_64-2-0d2ed24b90d50bf83e5fe94536596e50_populate-lic.tgz
> 
> But after sstate-cache directory is rsynced somewhere else and oe-core/sstate-cache is removed, 
> all those symlinks point nowhere and public sstate-cache is unusable.
> 
> Can we have relative paths used in symlinks or even instruct fetcher to download that 
> file directly to right prefix?

2 more ideas:

1) would be great to also download file.sigdata if it exists, to be able
   to compare them when they change even on machine which downloaded
   older sstate file from remote url
2) if the reason for this patch was number of files in shared
   sstate-cache directory, then fetcher creating .done files makes
   number double too (would be fine if fetcher stores all 3 files
   (.tgz, .tgz.sigdata, .tgz.done) in right prefix, or moves them to
   right prefix instead of symlinks.

Cheers,

Patch

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index 570b371..d00779a 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -4,16 +4,21 @@  SSTATE_MANIFESTS ?= "${TMPDIR}/sstate-control"
 SSTATE_MANFILEBASE = "${SSTATE_MANIFESTS}/manifest-${SSTATE_MANMACH}-"
 SSTATE_MANFILEPREFIX = "${SSTATE_MANFILEBASE}${PN}"
 
+def generate_sstatefn(spec, hash, d):
+    if not hash:
+        hash = "INVALID"
+    return hash[:2] + "/" + spec + hash
 
 SSTATE_PKGARCH    = "${PACKAGE_ARCH}"
 SSTATE_PKGSPEC    = "sstate-${PN}-${PACKAGE_ARCH}${TARGET_VENDOR}-${TARGET_OS}-${PV}-${PR}-${SSTATE_PKGARCH}-${SSTATE_VERSION}-"
-SSTATE_PKGNAME    = "${SSTATE_PKGSPEC}${BB_TASKHASH}"
+SSTATE_PKGNAME    = "${@generate_sstatefn(d.getVar('SSTATE_PKGSPEC', True), d.getVar('BB_TASKHASH', True), d)}"
 SSTATE_PKG        = "${SSTATE_DIR}/${SSTATE_PKGNAME}"
+SSTATE_PATHSPEC   = "${SSTATE_DIR}/*/${SSTATE_PKGSPEC}"
 
 SSTATE_SCAN_FILES ?= "*.la *-config *_config"
 SSTATE_SCAN_CMD ?= 'find ${SSTATE_BUILDDIR} \( -name "${@"\" -o -name \"".join(d.getVar("SSTATE_SCAN_FILES", True).split())}" \) -type f'
 
-BB_HASHFILENAME = "${SSTATE_PKGNAME}"
+BB_HASHFILENAME = "${SSTATE_PKGSPEC}"
 
 SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
 
@@ -158,10 +163,11 @@  def sstate_installpkg(ss, d):
         oe.path.remove(dir)
 
     sstateinst = d.expand("${WORKDIR}/sstate-install-%s/" % ss['name'])
+    sstatefetch = d.getVar('SSTATE_PKGNAME', True) + '_' + ss['name'] + ".tgz"
     sstatepkg = d.getVar('SSTATE_PKG', True) + '_' + ss['name'] + ".tgz"
 
     if not os.path.exists(sstatepkg):
-       pstaging_fetch(sstatepkg, d)
+       pstaging_fetch(sstatefetch, sstatepkg, d)
 
     if not os.path.isfile(sstatepkg):
         bb.note("Staging package %s does not exist" % sstatepkg)
@@ -223,8 +229,7 @@  def sstate_installpkg(ss, d):
 def sstate_clean_cachefile(ss, d):
     import oe.path
 
-    sstatepkgdir = d.getVar('SSTATE_DIR', True)
-    sstatepkgfile = sstatepkgdir + '/' + d.getVar('SSTATE_PKGSPEC', True) + "*_" + ss['name'] + ".tgz*"
+    sstatepkgfile = d.getVar('SSTATE_PATHSPEC', True) + "*_" + ss['name'] + ".tgz*"
     bb.note("Removing %s" % sstatepkgfile)
     oe.path.remove(sstatepkgfile)
 
@@ -417,7 +422,7 @@  def sstate_package(ss, d):
 
     return
 
-def pstaging_fetch(sstatepkg, d):
+def pstaging_fetch(sstatefetch, sstatepkg, d):
     import bb.fetch2
 
     # Only try and fetch if the user has configured a mirror
@@ -430,7 +435,7 @@  def pstaging_fetch(sstatepkg, d):
     bb.data.update_data(localdata)
 
     dldir = localdata.expand("${SSTATE_DIR}")
-    srcuri = "file://" + os.path.basename(sstatepkg)
+    srcuri = "file://" + sstatefetch
 
     bb.mkdirhier(dldir)
 
@@ -519,8 +524,7 @@  def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
     }
 
     for task in range(len(sq_fn)):
-        sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
-        sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
+        sstatefile = d.expand("${SSTATE_DIR}/" + generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
         if os.path.exists(sstatefile):
             bb.debug(2, "SState: Found valid sstate file %s" % sstatefile)
             ret.append(task)
@@ -544,10 +548,9 @@  def sstate_checkhashes(sq_fn, sq_task, sq_hash, sq_hashfn, d):
             if task in ret:
                 continue
 
-            sstatefile = d.expand("${SSTATE_DIR}/" + sq_hashfn[task] + "_" + mapping[sq_task[task]] + ".tgz")
-            sstatefile = sstatefile.replace("${BB_TASKHASH}", sq_hash[task])
+            sstatefile = d.expand(generate_sstatefn(sq_hashfn[task], sq_hash[task], d) + "_" + mapping[sq_task[task]] + ".tgz")
 
-            srcuri = "file://" + os.path.basename(sstatefile)
+            srcuri = "file://" + sstatefile
             localdata.setVar('SRC_URI', srcuri)
             bb.debug(2, "SState: Attempting to fetch %s" % srcuri)