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Only perform early read-write open when truncating is needed (#2874)
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Should stop some fs error spam when games open files from /app0, as this open call would fail from reduced permissions.
This commit is contained in:
Stephen Miller 2025-05-02 13:22:05 -05:00 • committed by GitHub
parent eb09c4ccce
commit 0ba9ea6a3b
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GPG key ID: B5690EEEBB952194
1 changed files with 8 additions and 7 deletions
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15
src/core/libraries/kernel/file_system.cpp
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@ -181,10 +181,6 @@ s32 PS4_SYSV_ABI open(const char* raw_path, s32 flags, u16 mode) {
return -1;
}
} else {
// Start by opening as read-write so we can truncate regardless of flags.
// Since open starts by closing the file, this won't interfere with later open calls.
e = file->f.Open(file->m_host_name, Common::FS::FileAccessMode::ReadWrite);
file->type = Core::FileSys::FileType::Regular;
if (truncate && read_only) {
@ -192,9 +188,14 @@ s32 PS4_SYSV_ABI open(const char* raw_path, s32 flags, u16 mode) {
h->DeleteHandle(handle);
*__Error() = POSIX_EROFS;
return -1;
} else if (truncate && e == 0) {
// If the file was opened successfully and truncate was enabled, reduce size to 0
file->f.SetSize(0);
} else if (truncate) {
// Open the file as read-write so we can truncate regardless of flags.
// Since open starts by closing the file, this won't interfere with later open calls.
e = file->f.Open(file->m_host_name, Common::FS::FileAccessMode::ReadWrite);
if (e == 0) {
// If the file was opened successfully, reduce size to 0
file->f.SetSize(0);
}
}
if (read) {