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| author | Sergey Bugaev <bugaevc@gmail.com> | 2023-05-09 00:31:04 +0300 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2023-05-10 02:18:14 +0200 |
| commit | 070292f3118b75de9fc0e79fac6ca0186d157c28 (patch) | |
| tree | be54835aaa641d50e0453747092d5e53e1cd4958 /libstore/copy.c | |
| parent | 4ba239ddbe936322bd7f9a8b17715ebaeb1cb800 (diff) | |
| download | hurd-070292f3118b75de9fc0e79fac6ca0186d157c28.tar.gz hurd-070292f3118b75de9fc0e79fac6ca0186d157c28.tar.bz2 hurd-070292f3118b75de9fc0e79fac6ca0186d157c28.zip | |
libstore: Port to x86_64
Message-Id: <20230508213136.608575-10-bugaevc@gmail.com>
Diffstat (limited to 'libstore/copy.c')
| -rw-r--r-- | libstore/copy.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/libstore/copy.c b/libstore/copy.c index c670ebf3..16b99390 100644 --- a/libstore/copy.c +++ b/libstore/copy.c @@ -36,10 +36,18 @@ copy_read (struct store *store, store_offset_t addr, size_t index, char *data = store->hook + (addr * store->block_size); if (page_aligned (data) && page_aligned (amount)) - /* When reading whole pages, we can avoid any real copying. */ - return vm_read (mach_task_self (), - (vm_address_t) data, amount, - (pointer_t *) buf, len); + { + /* When reading whole pages, we can avoid any real copying. */ + error_t err; + mach_msg_type_number_t nread; + err = vm_read (mach_task_self (), + (vm_address_t) data, amount, + (pointer_t *) buf, &nread); + if (err) + return err; + *len = nread; + return 0; + } if (*len < amount) /* Have to allocate memory for the return value. */ |