Commit Graph

3915 Commits

Author SHA1 Message Date
Brian Behlendorf 0c11631b02 Fix for fix-stack-dmu_objset_snapshot should be 'sn' not '&sn'
I missed a instanse of removing the & operator when reducing the
stack usage in this function.  This unfortunately doesn't cause
a compile warning but it is does cause ztest failures.  Anyway,
update the topic branch to correct this mistake.
2010-06-28 10:06:29 -07:00
Brian Behlendorf 4aba89bb16 Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk 2010-06-16 14:43:35 -07:00
Brian Behlendorf 2f457b7bd0 Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-16 14:43:17 -07:00
Brian Behlendorf 8de2671680 Merge branch 'fix-branch' into refs/top-bases/zfs-branch 2010-06-16 14:43:17 -07:00
Brian Behlendorf a0c72bab76 Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-16 14:39:41 -07:00
Brian Behlendorf 6504afae4a Merge branch 'fix-stack-dmu_objset_snapshot' into refs/top-bases/fix-branch 2010-06-16 14:39:41 -07:00
Brian Behlendorf bf02bcb6ee New TopGit dependency: fix-stack-dmu_objset_snapshot 2010-06-16 14:39:39 -07:00
Brian Behlendorf e163b08ba3 Add fix-stack-dmu_objset_snapshot topic branch
Reduce stack usage by 276 bytes by moving the snaparg struct from the
stack to the heap.  We have limited stack space we must not waste.
2010-06-16 14:39:06 -07:00
Brian Behlendorf a2ba5b83f8 Merge branch 'fix-stack-noinline' into refs/top-bases/fix-branch 2010-06-16 14:35:14 -07:00
Brian Behlendorf 94a22f54e5 Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-16 14:35:14 -07:00
Brian Behlendorf 23d291df44 New TopGit dependency: fix-stack-noinline 2010-06-16 14:35:11 -07:00
Brian Behlendorf bbdb8184ec Add fix-stack-noinline topic branch
Certain function must never be automatically inlined by gcc because
they are stack heavy or called recursively.  This patch flags all
such functions I have found as 'noinline' to prevent gcc from making
the optimization.
2010-06-16 14:34:41 -07:00
Brian Behlendorf d297febad2 Remove fix-stack dependency from fix-branch 2010-06-16 14:30:40 -07:00
Brian Behlendorf 850510ee8f Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk 2010-06-16 14:27:48 -07:00
Brian Behlendorf 48ca6d3590 Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-16 14:27:31 -07:00
Brian Behlendorf 7f979b27f4 Merge branch 'fix-branch' into refs/top-bases/zfs-branch 2010-06-16 14:27:30 -07:00
Brian Behlendorf 30c03a0914 Merge branch 'fix-stack' into refs/top-bases/fix-branch 2010-06-16 14:27:29 -07:00
Brian Behlendorf 1388d58932 Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-16 14:27:29 -07:00
Brian Behlendorf 2115c30515 Revert fix-stack topic branch
This patch will be broken in to several independent stack reductions
and reapplied as new topic branches.
2010-06-16 14:23:31 -07:00
Brian Behlendorf 2084051282 Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk 2010-06-16 13:53:24 -07:00
Brian Behlendorf aacc00b961 Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-16 13:53:08 -07:00
Brian Behlendorf 6a19e49908 Merge branch 'fix-branch' into refs/top-bases/zfs-branch 2010-06-16 13:53:07 -07:00
Brian Behlendorf 4c62777dcc Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-16 13:49:56 -07:00
Brian Behlendorf 256505afb0 Merge branch 'fix-stack-dsl_deleg_get' into refs/top-bases/fix-branch 2010-06-16 13:49:55 -07:00
Brian Behlendorf 2709f5731b New TopGit dependency: fix-stack-dsl_deleg_get 2010-06-16 13:49:53 -07:00
Brian Behlendorf 869764f64d Add fix-stack-dsl_deleg_get topic branch
Reduce stack usage in dsl_deleg_get, gcc flagged it as consuming a
whopping 1040 bytes or potentially 1/4 of a 4K stack.  This patch
moves all the large structures and buffer off the stack and on to
the heap.  This includes 2 zap_cursor_t structs each 52 bytes in
size, 2 zap_attribute_t structs each 280 bytes in size, and 1
256 byte char array.  The total saves on the stack is 880 bytes
after you account for the 5 new pointers added.

Also the source buffer length has been increased from MAXNAMELEN
to MAXNAMELEN+strlen(MOS_DIR_NAME)+1 as described by the comment in
dsl_dir_name().  A buffer overrun may have been possible with the
slightly smaller buffer.
2010-06-16 13:49:25 -07:00
Brian Behlendorf 08415a34fb Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk 2010-06-16 12:44:53 -07:00
Brian Behlendorf 4738ecfcdc Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-16 12:44:09 -07:00
Brian Behlendorf 1ccdbb250b Merge branch 'fix-branch' into refs/top-bases/zfs-branch 2010-06-16 12:44:08 -07:00
Brian Behlendorf 912d828f0a Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-16 12:40:40 -07:00
Brian Behlendorf 31cc6992c5 Merge branch 'fix-stack-dsl_dir_open_spa' into refs/top-bases/fix-branch 2010-06-16 12:40:39 -07:00
Brian Behlendorf a2cbedd9e8 New TopGit dependency: fix-stack-dsl_dir_open_spa 2010-06-16 12:40:37 -07:00
Brian Behlendorf 0c524122bd Add fix-stack-dsl_dir_open_spa topic branch
Reduce stack usage by 256 bytes by moving buf char array from
the stack to the heap.
2010-06-16 12:39:44 -07:00
Brian Behlendorf 70b7065e93 Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk 2010-06-16 12:12:28 -07:00
Brian Behlendorf 9fd12ce4fd Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-16 12:11:21 -07:00
Brian Behlendorf 2b71569742 Merge branch 'gcc-branch' into refs/top-bases/zfs-branch 2010-06-16 12:11:20 -07:00
Brian Behlendorf f00293115a Merge commit 'refs/top-bases/gcc-branch' into gcc-branch 2010-06-16 12:11:19 -07:00
Brian Behlendorf 877a37d8bd Merge branch 'gcc-uninit' into refs/top-bases/gcc-branch 2010-06-16 12:11:18 -07:00
Brian Behlendorf 8a001d8f59 Extra uninit vars flagged by gcc 4.1.2
Newer versions of the compiler are OK with this but for the sake of
older compilers explicitly initialize them.
2010-06-16 11:45:07 -07:00
Brian Behlendorf 2d15a98cb9 Merge commit 'refs/top-bases/linux-kernel-disk' into linux-kernel-disk
Conflicts:

	module/zfs/include/sys/dmu.h
2010-06-14 16:59:02 -07:00
Brian Behlendorf b41c7ff877 Merge commit 'refs/top-bases/zfs-branch' into zfs-branch 2010-06-14 16:45:47 -07:00
Brian Behlendorf 7f181ac166 Merge branch 'fix-branch' into refs/top-bases/zfs-branch 2010-06-14 16:45:46 -07:00
Brian Behlendorf 2f30cc0188 Merge branch 'fix-stack-lzjb' into refs/top-bases/fix-branch 2010-06-14 16:45:33 -07:00
Brian Behlendorf 1121733c6a Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-14 16:45:33 -07:00
Brian Behlendorf 4327d5dce3 New TopGit dependency: fix-stack-lzjb 2010-06-14 16:45:31 -07:00
Brian Behlendorf b8cc785fb6 Add fix-stack-lzjb topic branch
Reduce kernel stack usage by lzjb_compress() by moving uint16 array
off the stack and on to the heap.  The exact performance implications
of this I have not measured but we absolutely need to keep stack
usage to a minimum.  If/when this becomes and issue we optimize.
2010-06-14 16:45:01 -07:00
Brian Behlendorf 2392c05ea7 Merge commit 'refs/top-bases/fix-branch' into fix-branch 2010-06-14 16:43:33 -07:00
Brian Behlendorf 51322821f3 Merge branch 'fix-kstat-xuio' into refs/top-bases/fix-branch 2010-06-14 16:43:32 -07:00
Brian Behlendorf f70976285e New TopGit dependency: fix-kstat-xuio 2010-06-14 16:43:30 -07:00
Brian Behlendorf f61a7ce9e1 Add fix-kstat-xuio topic branch
Move xiou stat structures from a header to the dmu.c source as is
done with all the other kstat interfaces.  This information is local
to dmu.c registered the xuio kstat and should stay that way.
2010-06-14 16:43:01 -07:00