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author | Frans Kaashoek <[email protected]> | 2011-08-26 10:08:29 -0400 |
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committer | Frans Kaashoek <[email protected]> | 2011-08-26 10:08:29 -0400 |
commit | 3a5fa7ed9020eaf8ab843a16d26db7393b2ec072 (patch) | |
tree | bfa4ad4ae03d7d21796bacaa7eab8e3d3e4ab365 /file.h | |
parent | 8a9b6dbd4468f6312f1d07226a623879f970bd4b (diff) | |
download | xv6-labs-3a5fa7ed9020eaf8ab843a16d26db7393b2ec072.tar.gz xv6-labs-3a5fa7ed9020eaf8ab843a16d26db7393b2ec072.tar.bz2 xv6-labs-3a5fa7ed9020eaf8ab843a16d26db7393b2ec072.zip |
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)
Diffstat (limited to 'file.h')
-rw-r--r-- | file.h | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -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 { |