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| author | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-27 10:32:45 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-04-27 10:32:45 -0300 |
| commit | ae22fe4083245eb351bd4bc05e314c48fb9a3194 (patch) | |
| tree | 97e4cfee777189db1e2b8ee4d0150341dfaae1ed /crypto/af_alg.c | |
| parent | 9ece59e8fd3d017e04382709a4d48e81e00246fb (diff) | |
| parent | 0f792db0c4f74e99a1a9ccc6694abf60c4b41a5a (diff) | |
| download | linux-crypto-ae22fe4083245eb351bd4bc05e314c48fb9a3194.tar.gz linux-crypto-ae22fe4083245eb351bd4bc05e314c48fb9a3194.zip | |
Merge tag 'v4.1-rc1' into patchwork
Linux 4.1-rc1
* tag 'v4.1-rc1': (11651 commits)
Linux 4.1-rc1
x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue
v4l: xilinx: fix for include file movement
platform/chrome: chromeos_laptop - instantiate Atmel at primary address
RCU pathwalk breakage when running into a symlink overmounting something
fix I_DIO_WAKEUP definition
direct-io: only inc/dec inode->i_dio_count for file systems
fs/9p: fix readdir()
Btrfs: prevent list corruption during free space cache processing
toshiba_acpi: Do not register vendor backlight when acpi_video bl is available
x86: fix special __probe_kernel_write() tail zeroing case
crypto: img-hash - CRYPTO_DEV_IMGTEC_HASH should depend on HAS_DMA
crypto: x86/sha512_ssse3 - fixup for asm function prototype change
nios2: rework cache
nios2: Add types.h header required for __u32 type
ALSA: hda - fix headset mic detection problem for one more machine
eth: bf609 eth clock: add pclk clock for stmmac driver probe
blackfin: Wire up missing syscalls
Btrfs: fix inode cache writeout
ACPI / scan: Add a scan handler for PRP0001
...
Diffstat (limited to 'crypto/af_alg.c')
| -rw-r--r-- | crypto/af_alg.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 7f8b7edc..f22cc56f 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -358,8 +358,8 @@ int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len) npages = (off + n + PAGE_SIZE - 1) >> PAGE_SHIFT; if (WARN_ON(npages == 0)) return -EINVAL; - - sg_init_table(sgl->sg, npages); + /* Add one extra for linking */ + sg_init_table(sgl->sg, npages + 1); for (i = 0, len = n; i < npages; i++) { int plen = min_t(int, len, PAGE_SIZE - off); @@ -369,18 +369,26 @@ int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len) off = 0; len -= plen; } + sg_mark_end(sgl->sg + npages - 1); + sgl->npages = npages; + return n; } EXPORT_SYMBOL_GPL(af_alg_make_sg); +void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new) +{ + sg_unmark_end(sgl_prev->sg + sgl_prev->npages - 1); + sg_chain(sgl_prev->sg, sgl_prev->npages + 1, sgl_new->sg); +} +EXPORT_SYMBOL_GPL(af_alg_link_sg); + void af_alg_free_sg(struct af_alg_sgl *sgl) { int i; - i = 0; - do { + for (i = 0; i < sgl->npages; i++) put_page(sgl->pages[i]); - } while (!sg_is_last(sgl->sg + (i++))); } EXPORT_SYMBOL_GPL(af_alg_free_sg); |