Christoph Hellwig c53c6d6a68 scatterlist: allow chaining to preallocated chunks ... Blk-mq drivers usually preallocate their S/G list as part of the request, but if we want to support the very large S/G lists currently supported by the SCSI code that would tie up a lot of memory in the preallocated request pool. Add support to the scatterlist code so that it can initialize a S/G list that uses a preallocated first chunks and dynamically allocated additional chunks. That way the scsi-mq code can preallocate a first page worth of S/G entries as part of the request, and dynamically extend the S/G list when needed. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Webb Scales <webbnh@hp.com> Acked-by: Jens Axboe <axboe@kernel.dk> Tested-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Robert Elliott <elliott@hp.com>		2014-07-25 17:16:21 -04:00
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fonts	…
lz4	lz4: add overrun checks to lz4_uncompress_unknownoutputsize()	2014-07-03 16:12:04 -07:00
lzo	lzo: properly check for overruns	2014-06-23 14:12:01 -04:00
mpi	…
raid6	…
reed_solomon	…
xz	lib/xz: enable all filters by default in Kconfig	2014-06-04 16:54:18 -07:00
zlib_deflate	…
zlib_inflate	…
.gitignore	…
Kconfig	…
Kconfig.debug	lib/Kconfig.debug: let FRAME_POINTER exclude SCORE, just like exclude most of other architectures	2014-06-23 16:47:43 -07:00
Kconfig.kgdb	…
Kconfig.kmemcheck	…
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2014-06-12 14:27:40 -07:00
argv_split.c	…
asn1_decoder.c	lib/asn1_decoder.c: kernel-doc warning fix	2014-06-04 16:54:19 -07:00
assoc_array.c	…
atomic64.c	…
atomic64_test.c	lib/atomic64_test.c: convert printk(KERN_INFO to pr_info	2014-06-04 16:54:19 -07:00
audit.c	…
average.c	…
bcd.c	…
bch.c	…
bitmap.c	…
bitrev.c	…
bsearch.c	…
btree.c	lib/btree.c: fix leak of whole btree nodes	2014-06-04 16:54:18 -07:00
bug.c	lib/bug.c: convert printk to pr_foo()	2014-06-04 16:54:19 -07:00
build_OID_registry	…
bust_spinlocks.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	…
clz_tab.c	…
cmdline.c	…
compat_audit.c	…
cordic.c	…
cpu-notifier-error-inject.c	…
cpu_rmap.c	…
cpumask.c	lib/cpumask: cpumask_set_cpu_local_first to use all cores when numa node is not defined	2014-07-02 18:29:23 -07:00
crc-ccitt.c	…
crc-itu-t.c	…
crc-t10dif.c	…
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	lib/crc32.c: remove unnecessary __constant	2014-06-04 16:54:19 -07:00
crc32defs.h	…
ctype.c	…
debug_locks.c	…
debugobjects.c	lib/debugobjects.c: convert printk(KERN_DEBUG to pr_debug	2014-06-04 16:53:53 -07:00
dec_and_lock.c	…
decompress.c	…
decompress_bunzip2.c	…
decompress_inflate.c	…
decompress_unlz4.c	…
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	…
devres.c	lib/devres.c: fix checkpatch warnings	2014-05-24 07:28:01 +09:00
digsig.c	lib/digsig.c: kernel-doc warning fixes	2014-06-04 16:54:19 -07:00
div64.c	…
dma-debug.c	…
dump_stack.c	…
dynamic_debug.c	…
dynamic_queue_limits.c	…
earlycpio.c	…
extable.c	…
fault-inject.c	…
fdt.c	…
fdt_empty_tree.c	…
fdt_ro.c	…
fdt_rw.c	…
fdt_strerror.c	…
fdt_sw.c	…
fdt_wip.c	…
find_last_bit.c	…
find_next_bit.c	…
flex_array.c	…
flex_proportions.c	…
gcd.c	…
gen_crc32table.c	…
genalloc.c	…
halfmd4.c	…
hash.c	…
hexdump.c	…
hweight.c	…
idr.c	idr: reduce the unneeded check in free_layer()	2014-06-06 16:08:12 -07:00
inflate.c	…
int_sqrt.c	…
interval_tree.c	…
interval_tree_test.c	…
iomap.c	…
iomap_copy.c	…
iommu-helper.c	…
ioremap.c	…
iovec.c	iovec: move memcpy_from/toiovecend to lib/iovec.c	2014-06-27 11:47:58 -07:00
irq_regs.c	…
is_single_threaded.c	…
jedec_ddr_data.c	…
kasprintf.c	…
kfifo.c	…
klist.c	…
kobject.c	…
kobject_uevent.c	…
kstrtox.c	…
kstrtox.h	…
lcm.c	…
libcrc32c.c	lib/libcrc32c.c: use PTR_ERR_OR_ZERO	2014-06-04 16:54:18 -07:00
list_debug.c	…
list_sort.c	…
llist.c	…
locking-selftest-hardirq.h	…
locking-selftest-mutex.h	…
locking-selftest-rlock-hardirq.h	…
locking-selftest-rlock-softirq.h	…
locking-selftest-rlock.h	…
locking-selftest-rsem.h	…
locking-selftest-softirq.h	…
locking-selftest-spin-hardirq.h	…
locking-selftest-spin-softirq.h	…
locking-selftest-spin.h	…
locking-selftest-wlock-hardirq.h	…
locking-selftest-wlock-softirq.h	…
locking-selftest-wlock.h	…
locking-selftest-wsem.h	…
locking-selftest.c	…
lockref.c	…
lru_cache.c	…
md5.c	…
memory-notifier-error-inject.c	…
memweight.c	…
net_utils.c	…
nlattr.c	Merge branch 'next' (accumulated 3.16 merge window patches) into master	2014-06-08 11:31:16 -07:00
notifier-error-inject.c	…
notifier-error-inject.h	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	…
parser.c	…
pci_iomap.c	…
percpu-refcount.c	…
percpu_counter.c	…
percpu_ida.c	…
percpu_test.c	…
plist.c	lib/plist.c: replace pr_debug with printk in plist_test()	2014-06-04 16:54:18 -07:00
pm-notifier-error-inject.c	…
prio_heap.c	…
proportions.c	…
radix-tree.c	lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations	2014-06-06 16:08:17 -07:00
random32.c	…
ratelimit.c	…
rational.c	…
rbtree.c	…
rbtree_test.c	…
reciprocal_div.c	…
scatterlist.c	scatterlist: allow chaining to preallocated chunks	2014-07-25 17:16:21 -04:00
sha1.c	…
show_mem.c	…
smp_processor_id.c	…
sort.c	…
stmp_device.c	…
string.c	lib/string.c: use the name "C-string" in comments	2014-06-04 16:54:18 -07:00
string_helpers.c	…
strncpy_from_user.c	…
strnlen_user.c	…
swiotlb.c	swiotlb: don't assume PA 0 is invalid	2014-06-20 16:04:32 -04:00
syscall.c	…
test-kstrtox.c	…
test-string_helpers.c	…
test_bpf.c	net: filter: fix nlattr and nlattr_nest BPF tests	2014-06-11 00:13:16 -07:00
test_module.c	…
test_user_copy.c	…
textsearch.c	lib/textsearch.c: move EXPORT_SYMBOL after functions	2014-06-04 16:54:19 -07:00
timerqueue.c	…
ts_bm.c	…
ts_fsm.c	…
ts_kmp.c	…
ucs2_string.c	…
usercopy.c	…
uuid.c	…
vsprintf.c	lib/vsprintf.c: fix comparison to bool	2014-06-04 16:54:18 -07:00