Imbus/xv6-riscv-kernel
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Change dev read/write functions

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to take inode* instead of minor number.

Unlock console inode during console_read
and console_write.  Otherwise background
processes cannot write to console while the
shell is reading it waiting for input.
This commit is contained in:
rsc 2007-08-28 17:49:49 +00:00
parent e3f271e880
commit d844f0f9d9
3 changed files with 12 additions and 7 deletions
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4
fs.c
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@ -411,7 +411,7 @@ readi(struct inode *ip, char *dst, uint off, uint n)
if(ip->type == T_DEV) {
if(ip->major < 0 || ip->major >= NDEV || !devsw[ip->major].read)
return -1;
return devsw[ip->major].read(ip->minor, dst, n);
return devsw[ip->major].read(ip, dst, n);
}
if(off > ip->size || off + n < off)
@ -439,7 +439,7 @@ writei(struct inode *ip, char *src, uint off, uint n)
if(ip->type == T_DEV) {
if(ip->major < 0 || ip->major >= NDEV || !devsw[ip->major].write)
return -1;
return devsw[ip->major].write(ip->minor, src, n);
return devsw[ip->major].write(ip, src, n);
}
if(off + n < off)