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| author | David Howells <dhowells@redhat.com> | 2018-04-06 15:17:25 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-04-09 22:54:48 +0200 |
| commit | 63a4681ff39cb63314b8ff41319e70fb0e606ed2 (patch) | |
| tree | 0b60198db6c9a21efd1f1dfda2a292ad63df38e8 /fs/afs/internal.h | |
| parent | afs: Adjust the directory XDR structures (diff) | |
| download | linux-63a4681ff39cb63314b8ff41319e70fb0e606ed2.tar.xz linux-63a4681ff39cb63314b8ff41319e70fb0e606ed2.zip | |
afs: Locally edit directory data for mkdir/create/unlink/...
Locally edit the contents of an AFS directory upon a successful inode
operation that modifies that directory (such as mkdir, create and unlink)
so that we can avoid the current practice of re-downloading the directory
after each change.
This is viable provided that the directory version number we get back from
the modifying RPC op is exactly incremented by 1 from what we had
previously. The data in the directory contents is in a defined format that
we have to parse locally to perform lookups and readdir, so modifying isn't
a problem.
If the edit fails, we just clear the VALID flag on the directory and it
will be reloaded next time it is needed.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'fs/afs/internal.h')
| -rw-r--r-- | fs/afs/internal.h | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/fs/afs/internal.h b/fs/afs/internal.h index 86f3066d9ab0..703ddb8c5d57 100644 --- a/fs/afs/internal.h +++ b/fs/afs/internal.h @@ -271,6 +271,8 @@ struct afs_net { atomic_t n_inval; /* Number of invalidations by the server */ atomic_t n_relpg; /* Number of invalidations by releasepage */ atomic_t n_read_dir; /* Number of directory pages read */ + atomic_t n_dir_cr; /* Number of directory entry creation edits */ + atomic_t n_dir_rm; /* Number of directory entry removal edits */ }; extern const char afs_init_sysname[]; @@ -680,6 +682,13 @@ extern const struct dentry_operations afs_fs_dentry_operations; extern void afs_d_release(struct dentry *); /* + * dir_edit.c + */ +extern void afs_edit_dir_add(struct afs_vnode *, struct qstr *, struct afs_fid *, + enum afs_edit_dir_reason); +extern void afs_edit_dir_remove(struct afs_vnode *, struct qstr *, enum afs_edit_dir_reason); + +/* * dynroot.c */ extern const struct file_operations afs_dynroot_file_operations; @@ -725,14 +734,14 @@ extern void afs_update_inode_from_status(struct afs_vnode *, struct afs_file_sta extern int afs_fs_fetch_file_status(struct afs_fs_cursor *, struct afs_volsync *, bool); extern int afs_fs_give_up_callbacks(struct afs_net *, struct afs_server *); extern int afs_fs_fetch_data(struct afs_fs_cursor *, struct afs_read *); -extern int afs_fs_create(struct afs_fs_cursor *, const char *, umode_t, +extern int afs_fs_create(struct afs_fs_cursor *, const char *, umode_t, u64, struct afs_fid *, struct afs_file_status *, struct afs_callback *); -extern int afs_fs_remove(struct afs_fs_cursor *, const char *, bool); -extern int afs_fs_link(struct afs_fs_cursor *, struct afs_vnode *, const char *); -extern int afs_fs_symlink(struct afs_fs_cursor *, const char *, const char *, +extern int afs_fs_remove(struct afs_fs_cursor *, const char *, bool, u64); +extern int afs_fs_link(struct afs_fs_cursor *, struct afs_vnode *, const char *, u64); +extern int afs_fs_symlink(struct afs_fs_cursor *, const char *, const char *, u64, struct afs_fid *, struct afs_file_status *); extern int afs_fs_rename(struct afs_fs_cursor *, const char *, - struct afs_vnode *, const char *); + struct afs_vnode *, const char *, u64, u64); extern int afs_fs_store_data(struct afs_fs_cursor *, struct address_space *, pgoff_t, pgoff_t, unsigned, unsigned); extern int afs_fs_setattr(struct afs_fs_cursor *, struct iattr *); |