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mm: bdi init hooks

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provide BDI constructor/destructor hooks

[akpm@linux-foundation.org: compile fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Zijlstra
2007-10-16 23:25:46 -07:00
committed by Linus Torvalds
parent dc62a30e27
commit e0bf68ddec
19 changed files with 131 additions and 7 deletions
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fs/fuse/inode.c
+9
View File
@@ -401,6 +401,7 @@ static int fuse_show_options(struct seq_file *m, struct vfsmount *mnt)
static struct fuse_conn *new_conn(void)
{
struct fuse_conn *fc;
int err;
fc = kzalloc(sizeof(*fc), GFP_KERNEL);
if (fc) {
@@ -416,10 +417,17 @@ static struct fuse_conn *new_conn(void)
atomic_set(&fc->num_waiting, 0);
fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
fc->bdi.unplug_io_fn = default_unplug_io_fn;
err = bdi_init(&fc->bdi);
if (err) {
kfree(fc);
fc = NULL;
goto out;
}
fc->reqctr = 0;
fc->blocked = 1;
get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
}
out:
return fc;
}
@@ -429,6 +437,7 @@ void fuse_conn_put(struct fuse_conn *fc)
if (fc->destroy_req)
fuse_request_free(fc->destroy_req);
mutex_destroy(&fc->inst_mutex);
bdi_destroy(&fc->bdi);
kfree(fc);
}
}