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| author | Mole Shang <[email protected]> | 2024-02-11 14:44:22 +0800 |
|---|---|---|
| committer | Mole Shang <[email protected]> | 2024-02-11 16:06:15 +0800 |
| commit | 2fe04bc8faa4bf737a86c36a8017473e84814f3b (patch) | |
| tree | 2146d3dae86f21060e2e807ad364f5a949fd1c53 /kernel/kalloc.c | |
| parent | 5ce1f630132d8b7b35b9dc46b4a55f860eb85d5c (diff) | |
| parent | 48a5e34fcd07852b4a68825ce8e37feb6f6d04d7 (diff) | |
| download | xv6-labs-2fe04bc8faa4bf737a86c36a8017473e84814f3b.tar.gz xv6-labs-2fe04bc8faa4bf737a86c36a8017473e84814f3b.tar.bz2 xv6-labs-2fe04bc8faa4bf737a86c36a8017473e84814f3b.zip | |
Merge branch 'traps' into cow
Conflicts:
.gitignore
Makefile
conf/lab.mk
Diffstat (limited to 'kernel/kalloc.c')
| -rw-r--r-- | kernel/kalloc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/kalloc.c b/kernel/kalloc.c index 0699e7e..c2fdb86 100644 --- a/kernel/kalloc.c +++ b/kernel/kalloc.c @@ -80,3 +80,17 @@ kalloc(void) memset((char*)r, 5, PGSIZE); // fill with junk return (void*)r; } + +int +get_freemem(void) +{ + int n; + struct run *r; + + acquire(&kmem.lock); + for (n = 0, r = kmem.freelist; r; r = r->next) + n++; + release(&kmem.lock); + + return n * PGSIZE; +} |