diff options
| author | Greg Kurz <gkurz@linux.vnet.ibm.com> | 2020-09-23 17:11:44 +0300 |
|---|---|---|
| committer | Dominique Martinet <asmadeus@codewreck.org> | 2020-11-03 11:29:46 +0300 |
| commit | 987a64850996db22bbcf2c1d0a051446a343fa2c (patch) | |
| tree | 70596e685ff828cc5225956c3426d5f559eb5f28 /fs/9p/vfs_inode.c | |
| parent | 154372e67d4053e56591245eb413686621941333 (diff) | |
| download | linux-987a64850996db22bbcf2c1d0a051446a343fa2c.tar.xz | |
fs/9p: track open fids
This patch adds accounting of open fids in a list hanging off the i_private
field of the corresponding inode. This allows faster lookups compared to
searching the full 9p client list.
The lookup code is modified accordingly.
Link: http://lkml.kernel.org/r/20200923141146.90046-3-jianyong.wu@arm.com
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Diffstat (limited to 'fs/9p/vfs_inode.c')
| -rw-r--r-- | fs/9p/vfs_inode.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 31c2fddabb82..6b243ffcbcf0 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -256,6 +256,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses, inode->i_rdev = rdev; inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); inode->i_mapping->a_ops = &v9fs_addr_operations; + inode->i_private = NULL; switch (mode & S_IFMT) { case S_IFIFO: @@ -796,6 +797,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry, struct v9fs_session_info *v9ses; struct p9_fid *fid, *inode_fid; struct dentry *res = NULL; + struct inode *inode; if (d_in_lookup(dentry)) { res = v9fs_vfs_lookup(dir, dentry, 0); @@ -824,7 +826,8 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry, } v9fs_invalidate_inode_attr(dir); - v9inode = V9FS_I(d_inode(dentry)); + inode = d_inode(dentry); + v9inode = V9FS_I(inode); mutex_lock(&v9inode->v_mutex); if ((v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) && !v9inode->writeback_fid && @@ -852,6 +855,7 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry, file->private_data = fid; if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) v9fs_cache_inode_set_cookie(d_inode(dentry), file); + v9fs_open_fid_add(inode, fid); file->f_mode |= FMODE_CREATED; out: |