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drivers/mtd/ftl.c: Make READAHEAD and WRITEBUFFER work independently of each other. There have cases we use writebuffer but not readbuffer, so the write buffer must be flushed before read. Let rwb driver do it.

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zhuyanlin 2018-11-09 08:18:46 -06:00 committed by Gregory Nutt
parent 65177b3344
commit e9000df50c
1 changed files with 4 additions and 4 deletions
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8
drivers/mtd/ftl.c
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@ -206,7 +206,7 @@ static ssize_t ftl_read(FAR struct inode *inode, unsigned char *buffer,
DEBUGASSERT(inode && inode->i_private);
dev = (FAR struct ftl_struct_s *)inode->i_private;
#ifdef CONFIG_FTL_READAHEAD
#ifdef FTL_HAVE_RWBUFFER
return rwb_read(&dev->rwb, start_sector, nsectors, buffer);
#else
return ftl_reload(dev, buffer, start_sector, nsectors);
@ -407,7 +407,7 @@ static ssize_t ftl_write(FAR struct inode *inode, const unsigned char *buffer,
DEBUGASSERT(inode && inode->i_private);
dev = (struct ftl_struct_s *)inode->i_private;
#ifdef CONFIG_FTL_WRITEBUFFER
#ifdef FTL_HAVE_RWBUFFER
return rwb_write(&dev->rwb, start_sector, nsectors, buffer);
#else
return ftl_flush(dev, buffer, start_sector, nsectors);
@ -588,15 +588,15 @@ int ftl_initialize_by_path(FAR const char *path, FAR struct mtd_dev_s *mtd)
dev->rwb.blocksize = dev->geo.blocksize;
dev->rwb.nblocks = dev->geo.neraseblocks * dev->blkper;
dev->rwb.dev = (FAR void *)dev;
dev->rwb.wrflush = ftl_flush;
dev->rwb.rhreload = ftl_reload;
#if defined(CONFIG_FS_WRITABLE) && defined(CONFIG_FTL_WRITEBUFFER)
dev->rwb.wrmaxblocks = dev->blkper;
dev->rwb.wrflush = ftl_flush;
#endif
#ifdef CONFIG_FTL_READAHEAD
dev->rwb.rhmaxblocks = dev->blkper;
dev->rwb.rhreload = ftl_reload;
#endif
ret = rwb_initialize(&dev->rwb);