diff options
Diffstat (limited to 'firmware/common/file.c')
| -rw-r--r-- | firmware/common/file.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/firmware/common/file.c b/firmware/common/file.c index 623e898257..81b5a194c0 100644 --- a/firmware/common/file.c +++ b/firmware/common/file.c @@ -457,18 +457,15 @@ static int readwrite(int fd, void* buf, int count, bool write) nread = headbytes; count -= headbytes; } - - /* if buffer has been modified, write it back to disk */ - if (nread && file->dirty) { - rc = flush_cache(fd); - if (rc < 0) - return rc * 10 - 3; - } + + /* If the buffer has been modified, either it has been flushed already + * (if (offs+headbytes == SECTOR_SIZE)...) or does not need to be (no + * more data to follow in this call). Do NOT flush here. */ /* read/write whole sectors right into/from the supplied buffer */ sectors = count / SECTOR_SIZE; if ( sectors ) { - int rc = fat_readwrite(&(file->fatfile), sectors, + int rc = fat_readwrite(&(file->fatfile), sectors, (unsigned char*)buf+nread, write ); if ( rc < 0 ) { DEBUGF("Failed read/writing %d sectors\n",sectors); |