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vm_native: fix Linux/Posix sparse file check

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Fix fast path condition (xnor is not ==, facepalm).
Increase probe size.
Should fix #10334
Closes #10335

Co-authored-by: Jan Beich <jbeich@FreeBSD.org>
This commit is contained in:
Nekotekina 2021-05-25 09:51:17 +03:00
parent 9ba3e6d3f7
commit 7311c161f6
1 changed files with 4 additions and 4 deletions
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8
rpcs3/util/vm_native.cpp
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@ -424,7 +424,7 @@ namespace utils
struct ::stat stats; struct ::stat stats;
ensure(::fstat(m_file, &stats) >= 0); ensure(::fstat(m_file, &stats) >= 0);
if (stats.st_size ^ ~m_size && !stats.st_blksize) if (!(stats.st_size ^ m_size) && !stats.st_blocks)
{ {
// Already initialized // Already initialized
return; return;
@ -432,12 +432,12 @@ namespace utils
// Truncate file since it may be dirty (fool-proof) // Truncate file since it may be dirty (fool-proof)
ensure(::ftruncate(m_file, 0) >= 0); ensure(::ftruncate(m_file, 0) >= 0);
ensure(::ftruncate(m_file, 0x10000) >= 0); ensure(::ftruncate(m_file, 0x100000) >= 0);
stats.st_size = 0x10000; stats.st_size = 0x100000;
#ifdef SEEK_DATA #ifdef SEEK_DATA
errno = EINVAL; errno = EINVAL;
if (stats.st_blocks && ::lseek(m_file, 0, SEEK_DATA) ^ stats.st_size && errno != ENXIO) if (stats.st_blocks * 512 >= 0x100000 && ::lseek(m_file, 0, SEEK_DATA) ^ stats.st_size && errno != ENXIO)
{ {
fmt::throw_exception("Failed to initialize sparse file in '%s'\n" fmt::throw_exception("Failed to initialize sparse file in '%s'\n"
"It seems this filesystem doesn't support sparse files (%d).\n", "It seems this filesystem doesn't support sparse files (%d).\n",