VFS work (dcache/path walking/mounts) #129
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Add seqcount_t, that implements linux(ish) sequence counters, with proper memory barriers. Signed-off-by: Pedro Falcato <[email protected]>
Plus some reworking of mountpoint traversal (they're not longer stored in dentries yet). Signed-off-by: Pedro Falcato <[email protected]>
Signed-off-by: Pedro Falcato <[email protected]>
pointers This has the side effect of giving us compliance (in many but not all!) *at() functions. Signed-off-by: Pedro Falcato <[email protected]>
Do away with "base" struct files and let lookup_start take care of it. Signed-off-by: Pedro Falcato <[email protected]>
Signed-off-by: Pedro Falcato <[email protected]>
struct path contains only a dentry atm (with mount to follow). Signed-off-by: Pedro Falcato <[email protected]>
They didn't make sense as struct file's, so use a proper struct for it. Signed-off-by: Pedro Falcato <[email protected]>
Signed-off-by: Pedro Falcato <[email protected]>
We forgot to do path_get on the dirfd != AT_FDCWD case, which led us to refcount problems. Signed-off-by: Pedro Falcato <[email protected]>
Make dentries rcu-freed. Add kfree_rcu() to help out with this. Also replace several rwslocks with spinlocks. Signed-off-by: Pedro Falcato <[email protected]>
Now dentries default to d_ref = 0, and there's a way to lock references out. Signed-off-by: Pedro Falcato <[email protected]>
Add proper shrinking, LRU, with some dentry fixes sprinkled around. Shrinkers aren't great atm, but they Work(tm) ish. Signed-off-by: Pedro Falcato <[email protected]>
Add umount2() support. Also umount support for tmpfs and ext2, and loose fixes for dcache rename and unlink. Signed-off-by: Pedro Falcato <[email protected]>
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