From 3a5fa7ed9020eaf8ab843a16d26db7393b2ec072 Mon Sep 17 00:00:00 2001 From: Frans Kaashoek Date: Fri, 26 Aug 2011 10:08:29 -0400 Subject: Introduce and use sleeplocks instead of BUSY flags Remove I_BUSY, B_BUSY, and intrans defs and usages One spinlock per buf to avoid ugly loop in bget fix race in filewrite (don't update f->off after releasing lock) --- file.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'file.h') diff --git a/file.h b/file.h index 55918cc..d7d8fed 100644 --- a/file.h +++ b/file.h @@ -15,7 +15,9 @@ struct inode { uint dev; // Device number uint inum; // Inode number int ref; // Reference count - int flags; // I_BUSY, I_VALID + int flags; // I_VALID + struct spinlock lock; + struct sleeplock sleeplock; short type; // copy of disk inode short major; @@ -25,10 +27,8 @@ struct inode { uint addrs[NDIRECT+1]; }; -#define I_BUSY 0x1 #define I_VALID 0x2 - // device implementations struct devsw { -- cgit v1.2.3