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Jim Keniston 565d76cb7d zlib: slim down zlib_deflate() workspace when possible 
Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace by specifying smaller parameter
values.

For example, when capturing oops and panic reports to a medium with
limited capacity, such as NVRAM, compression may be the only way to
capture the whole report.  In this case, a small workspace (24K works
fine) is a win, whether you allocate the workspace when you need it (i.e.,
during an oops or panic) or at boot time.

I've verified that this patch works with all accepted values of windowBits
(positive and negative), memLevel, and compression level.

Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2011-03-22 17:44:17 -07:00
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lzo
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raid6 Move .gitignore from drivers/md to lib/raid6 2010-08-30 17:35:52 +10:00
reed_solomon
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xz kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT 2011-01-20 17:02:05 -08:00
zlib_deflate zlib: slim down zlib_deflate() workspace when possible 2011-03-22 17:44:17 -07:00
zlib_inflate
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.gitignore
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Kconfig Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-03-11 14:11:11 -05:00
Kconfig.debug kstrto*: converting strings to integers done (hopefully) right 2011-03-22 17:44:14 -07:00
Kconfig.kgdb mips,kgdb: kdb low level trap catch and stack trace 2010-05-20 21:04:26 -05:00
Kconfig.kmemcheck
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Makefile kstrto*: converting strings to integers done (hopefully) right 2011-03-22 17:44:14 -07:00
argv_split.c
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atomic64.c
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atomic64_test.c ARM: 6213/1: atomic64_test: add ARM as supported architecture 2010-07-27 10:43:46 +01:00
audit.c
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average.c lib: Improve EWMA efficiency by using bitshifts 2010-12-06 15:58:43 -05:00
bcd.c
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bitmap.c lib/bitmap.c: use hex_to_bin() 2010-10-26 16:52:18 -07:00
bitrev.c
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btree.c
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bug.c modules: Fix module_bug_list list corruption race 2010-10-05 11:29:27 -07:00
bust_spinlocks.c
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check_signature.c
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checksum.c
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cmdline.c
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cpu-notifier-error-inject.c fault-injection: add CPU notifier error injection module 2010-05-27 09:12:48 -07:00
cpu_rmap.c lib: cpu_rmap: CPU affinity reverse-mapping 2011-01-24 14:51:56 -08:00
cpumask.c
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crc-ccitt.c
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crc-itu-t.c
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crc-t10dif.c
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crc7.c
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crc16.c
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crc32.c revert "crc32: use __BYTE_ORDER macro for endian detection" 2010-05-26 08:19:23 -07:00
crc32defs.h
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ctype.c
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debug_locks.c Revert "debug_locks: set oops_in_progress if we will log messages." 2010-11-29 15:18:28 -08:00
debugobjects.c debugobjects: Add hint for better object identification 2011-03-08 16:10:38 +01:00
dec_and_lock.c
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decompress.c decompressors: add boot-time XZ support 2011-01-13 08:03:25 -08:00
decompress_bunzip2.c Decompressors: include <linux/slab.h> in <linux/decompress/mm.h> 2011-01-13 08:03:23 -08:00
decompress_inflate.c decompressors: check input size in decompress_inflate.c 2011-01-13 08:03:25 -08:00
decompress_unlzma.c Decompressors: validate match distance in decompress_unlzma.c 2011-01-13 08:03:24 -08:00
decompress_unlzo.c Decompressors: fix callback-to-callback mode in decompress_unlzo.c 2011-01-13 08:03:24 -08:00
decompress_unxz.c decompressors: add boot-time XZ support 2011-01-13 08:03:25 -08:00
devres.c lib/devres.c: fix comment typo 2010-07-11 22:16:32 +02:00
div64.c div64_u64(): improve precision on 32bit platforms 2010-10-26 16:52:19 -07:00
dma-debug.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
dump_stack.c
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dynamic_debug.c dynamic_debug: add #include <linux/sched.h> 2011-02-03 15:59:58 -08:00
extable.c
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fault-inject.c
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find_last_bit.c
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find_next_bit.c
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flex_array.c flex_array: export symbols to modules 2011-01-13 08:03:11 -08:00
gcd.c
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gen_crc32table.c crc32: major optimization 2010-05-25 08:07:06 -07:00
genalloc.c genalloc: fix allocation from end of pool 2010-06-29 15:29:30 -07:00
halfmd4.c
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hexdump.c include/linux/printk.h lib/hexdump.c: neatening and add CONFIG_PRINTK guard 2011-01-13 08:03:10 -08:00
hweight.c
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idr.c docbook: add idr/ida to kernel-api docbook 2010-10-26 17:40:56 -07:00
inflate.c MN10300: Don't try and #include <linux/slab.h> in lib/inflate.c from bootloader 2010-08-12 09:51:35 -07:00
int_sqrt.c
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iomap.c
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iomap_copy.c
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iommu-helper.c iommu: inline iommu_num_pages 2010-08-09 20:45:05 -07:00
ioremap.c ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support 2011-01-12 03:06:19 -05:00
irq_regs.c
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is_single_threaded.c
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kasprintf.c
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klist.c
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kobject.c kobject: Introduce kset_find_obj_hinted. 2010-10-22 10:16:44 -07:00
kobject_uevent.c kobject_uevent: fix typo in comments 2010-08-23 18:12:46 -07:00
kref.c kref: Add a kref_sub function 2010-11-22 13:25:13 +10:00
kstrtox.c kstrto*: converting strings to integers done (hopefully) right 2011-03-22 17:44:14 -07:00
lcm.c
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libcrc32c.c
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list_debug.c Expand CONFIG_DEBUG_LIST to several other list operations 2011-02-18 11:32:28 -08:00
list_sort.c lib/list_sort: test: check element addresses 2010-10-26 16:52:19 -07:00
locking-selftest-hardirq.h
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locking-selftest-mutex.h
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locking-selftest-rlock-hardirq.h
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locking-selftest-rlock-softirq.h
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locking-selftest-rlock.h
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locking-selftest-rsem.h
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locking-selftest-softirq.h
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locking-selftest-spin-hardirq.h
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locking-selftest-spin-softirq.h
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locking-selftest-spin.h
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locking-selftest-wlock-hardirq.h
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locking-selftest-wlock-softirq.h
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locking-selftest-wlock.h
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locking-selftest-wsem.h
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locking-selftest.c
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lru_cache.c
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nlattr.c net: fix nla_policy_len to actually _iterate_ over the policy 2011-02-28 12:38:25 -08:00
parser.c lib/parser: cleanup match_number() 2010-10-26 16:52:19 -07:00
percpu_counter.c percpucounter: Optimize __percpu_counter_add a bit through the use of this_cpu() options. 2010-12-17 15:07:18 +01:00
plist.c plist: Add priority list test 2011-03-11 15:14:48 -05:00
prio_heap.c
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prio_tree.c
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proportions.c
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radix-tree.c radix_tree: radix_tree_gang_lookup_tag_slot() may never return 2011-01-26 10:50:04 +10:00
random32.c Merge branch 'master' into for-next 2010-06-16 18:08:13 +02:00
ratelimit.c
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rational.c
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rbtree.c Export the augmented rbtree helper functions 2011-01-28 12:16:59 +10:00
reciprocal_div.c
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rwsem-spinlock.c
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rwsem.c rwsem: Remove redundant asmregparm annotation 2011-01-27 12:30:40 +01:00
scatterlist.c scatterlist: prevent invalid free when alloc fails 2010-08-30 19:55:09 +02:00
sha1.c
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show_mem.c oom: suppress nodes that are not allowed from meminfo on oom kill 2011-03-22 17:44:01 -07:00
smp_processor_id.c
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sort.c
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spinlock_debug.c
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string.c
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string_helpers.c
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swiotlb.c swiotlb: fix wrong panic 2011-02-25 15:07:36 -08:00
syscall.c
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test-kstrtox.c kstrto*: converting strings to integers done (hopefully) right 2011-03-22 17:44:14 -07:00
textsearch.c textsearch: doc - fix spelling in lib/textsearch.c. 2011-01-24 23:33:30 -08:00
timerqueue.c timerqueue: Make timerqueue_getnext() static inline 2010-12-11 12:34:34 +01:00
ts_bm.c
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ts_fsm.c
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ts_kmp.c
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uuid.c Unified UUID/GUID definition 2010-05-19 22:40:47 -04:00
vsprintf.c kstrto*: converting strings to integers done (hopefully) right 2011-03-22 17:44:14 -07:00