commit 8b89ccf010dacc90b4510088f667ce1e19e68834
author faqiang.zhu <faqiang.zhu@nxp.com> Thu Apr 11 19:04:53 2019 +0800
committer faqiang.zhu <faqiang.zhu@nxp.com> Wed Apr 24 18:10:46 2019 +0800
tree 2e843dd14924916fbb35f0b38203920dc26cf0fc
parent 28d257e48bb6584b3cc7d46a790b92acd23c2880

fix copy large file issue over MTP on 32bit device

change offset variable type from off_t to loff_t, then it won't overflow
when the offset value is larger than 2GB.

change the pwrite and pread function to be pwrite64 and pread64 so the
offset parameter won't overflow.

Change-Id: I45947479a59a4240fd708787384bcadee09d8947
Signed-off-by: faqiang.zhu <faqiang.zhu@nxp.com>

media/mtp/PosixAsyncIO.cpp

diff --git a/media/mtp/PosixAsyncIO.cpp b/media/mtp/PosixAsyncIO.cpp
index 72c07cc..8205e3b 100644
--- a/media/mtp/PosixAsyncIO.cpp
+++ b/media/mtp/PosixAsyncIO.cpp
@@ -47,10 +47,10 @@
         CHECK(aiocbp->queued);
         int ret;
         if (aiocbp->read) {
-            ret = TEMP_FAILURE_RETRY(pread(aiocbp->aio_fildes,
+            ret = TEMP_FAILURE_RETRY(pread64(aiocbp->aio_fildes,
                     aiocbp->aio_buf, aiocbp->aio_nbytes, aiocbp->aio_offset));
         } else {
-            ret = TEMP_FAILURE_RETRY(pwrite(aiocbp->aio_fildes,
+            ret = TEMP_FAILURE_RETRY(pwrite64(aiocbp->aio_fildes,
                aiocbp->aio_buf, aiocbp->aio_nbytes, aiocbp->aio_offset));
         }
         {
@@ -139,7 +139,7 @@
     return 0;
 }
 
-void aio_prepare(struct aiocb *aiocbp, void* buf, size_t count, off_t offset) {
+void aio_prepare(struct aiocb *aiocbp, void* buf, size_t count, off64_t offset) {
     aiocbp->aio_buf = buf;
     aiocbp->aio_offset = offset;
     aiocbp->aio_nbytes = count;