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orangefs: Cache getattr results.

Browse source 
The userspace component attempts to do this, but this will prevent
us from even needing to go into userspace to satisfy certain getattr
requests.

Signed-off-by: Martin Brandenburg <martin@omnibond.com>
This commit is contained in:
Martin Brandenburg 2016-06-09 16:32:38 -04:00
parent 31b7c1ab4e
commit 71680c18c8
5 changed files with 34 additions and 29 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

6
fs/orangefs/inode.c
View file

@ -262,7 +262,7 @@ int orangefs_getattr(struct vfsmount *mnt,
"orangefs_getattr: called on %s\n",
dentry->d_name.name);
ret = orangefs_inode_getattr(inode, 0, 1);
ret = orangefs_inode_getattr(inode, 0, 0);
if (ret == 0) {
generic_fillattr(inode, kstat);
@ -384,7 +384,7 @@ struct inode *orangefs_iget(struct super_block *sb, struct orangefs_object_kref
if (!inode || !(inode->i_state & I_NEW))
return inode;
error = orangefs_inode_getattr(inode, 1, 0);
error = orangefs_inode_getattr(inode, 1, 1);
if (error) {
iget_failed(inode);
return ERR_PTR(error);
@ -429,7 +429,7 @@ struct inode *orangefs_new_inode(struct super_block *sb, struct inode *dir,
orangefs_set_inode(inode, ref);
inode->i_ino = hash; /* needed for stat etc */
error = orangefs_inode_getattr(inode, 1, 0);
error = orangefs_inode_getattr(inode, 1, 1);
if (error)
goto out_iput;

7
fs/orangefs/namei.c
View file

@ -73,6 +73,7 @@ static int orangefs_create(struct inode *dir,
d_instantiate(dentry, inode);
unlock_new_inode(inode);
dentry->d_time = jiffies + HZ;
ORANGEFS_I(inode)->getattr_time = 0;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s: dentry instantiated for %s\n",
@ -192,6 +193,8 @@ static struct dentry *orangefs_lookup(struct inode *dir, struct dentry *dentry,
goto out;
}
ORANGEFS_I(inode)->getattr_time = 0;
gossip_debug(GOSSIP_NAME_DEBUG,
"%s:%s:%d "
"Found good inode [%lu] with count [%d]\n",
@ -320,6 +323,7 @@ static int orangefs_symlink(struct inode *dir,
d_instantiate(dentry, inode);
unlock_new_inode(inode);
dentry->d_time = jiffies + HZ;
ORANGEFS_I(inode)->getattr_time = 0;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Symlink) %pU -> %s\n",
@ -383,6 +387,7 @@ static int orangefs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
d_instantiate(dentry, inode);
unlock_new_inode(inode);
dentry->d_time = jiffies + HZ;
ORANGEFS_I(inode)->getattr_time = 0;
gossip_debug(GOSSIP_NAME_DEBUG,
"Inode (Directory) %pU -> %s\n",
@ -413,6 +418,8 @@ static int orangefs_rename(struct inode *old_dir,
"orangefs_rename: called (%pd2 => %pd2) ct=%d\n",
old_dentry, new_dentry, d_count(new_dentry));
ORANGEFS_I(new_dentry->d_parent->d_inode)->getattr_time = 0;
new_op = op_alloc(ORANGEFS_VFS_OP_RENAME);
if (!new_op)
return -EINVAL;

4
fs/orangefs/orangefs-kernel.h
View file

@ -246,6 +246,8 @@ struct orangefs_inode_s {
* with this object
*/
unsigned long pinode_flags;
unsigned long getattr_time;
};
#define P_ATIME_FLAG 0
@ -527,7 +529,7 @@ int orangefs_inode_setxattr(struct inode *inode,
size_t size,
int flags);
int orangefs_inode_getattr(struct inode *inode, int new, int size);
int orangefs_inode_getattr(struct inode *inode, int new, int bypass);
int orangefs_inode_check_changed(struct inode *inode);

38
fs/orangefs/orangefs-utils.c
View file

@ -251,7 +251,7 @@ static int orangefs_inode_is_stale(struct inode *inode, int new,
return 0;
}
int orangefs_inode_getattr(struct inode *inode, int new, int size)
int orangefs_inode_getattr(struct inode *inode, int new, int bypass)
{
struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
struct orangefs_kernel_op_s *new_op;
@ -261,12 +261,16 @@ int orangefs_inode_getattr(struct inode *inode, int new, int size)
gossip_debug(GOSSIP_UTILS_DEBUG, "%s: called on inode %pU\n", __func__,
get_khandle_from_ino(inode));
if (!new && !bypass) {
if (orangefs_inode->getattr_time > jiffies)
return 0;
}
new_op = op_alloc(ORANGEFS_VFS_OP_GETATTR);
if (!new_op)
return -ENOMEM;
new_op->upcall.req.getattr.refn = orangefs_inode->refn;
new_op->upcall.req.getattr.mask = size ?
ORANGEFS_ATTR_SYS_ALL_NOHINT : ORANGEFS_ATTR_SYS_ALL_NOHINT_NOSIZE;
new_op->upcall.req.getattr.mask = ORANGEFS_ATTR_SYS_ALL_NOHINT;
ret = service_operation(new_op, __func__,
get_interruptible_flag(inode));
@ -287,20 +291,18 @@ int orangefs_inode_getattr(struct inode *inode, int new, int size)
case S_IFREG:
inode->i_flags = orangefs_inode_flags(&new_op->
downcall.resp.getattr.attributes);
if (size) {
inode_size = (loff_t)new_op->
downcall.resp.getattr.attributes.size;
rounded_up_size =
(inode_size + (4096 - (inode_size % 4096)));
inode->i_size = inode_size;
orangefs_inode->blksize =
new_op->downcall.resp.getattr.attributes.blksize;
spin_lock(&inode->i_lock);
inode->i_bytes = inode_size;
inode->i_blocks =
(unsigned long)(rounded_up_size / 512);
spin_unlock(&inode->i_lock);
}
inode_size = (loff_t)new_op->
downcall.resp.getattr.attributes.size;
rounded_up_size =
(inode_size + (4096 - (inode_size % 4096)));
inode->i_size = inode_size;
orangefs_inode->blksize =
new_op->downcall.resp.getattr.attributes.blksize;
spin_lock(&inode->i_lock);
inode->i_bytes = inode_size;
inode->i_blocks =
(unsigned long)(rounded_up_size / 512);
spin_unlock(&inode->i_lock);
break;
case S_IFDIR:
inode->i_size = PAGE_SIZE;
@ -345,6 +347,7 @@ int orangefs_inode_getattr(struct inode *inode, int new, int size)
inode->i_mode = type | (is_root_handle(inode) ? S_ISVTX : 0) |
orangefs_inode_perms(&new_op->downcall.resp.getattr.attributes);
orangefs_inode->getattr_time = jiffies + HZ;
ret = 0;
out:
op_release(new_op);
@ -418,6 +421,7 @@ int orangefs_inode_setattr(struct inode *inode, struct iattr *iattr)
ClearMtimeFlag(orangefs_inode);
ClearCtimeFlag(orangefs_inode);
ClearModeFlag(orangefs_inode);
orangefs_inode->getattr_time = 0;
}
return ret;

8
fs/orangefs/protocol.h
View file

@ -207,14 +207,6 @@ typedef __s64 ORANGEFS_offset;
ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
ORANGEFS_ATTR_SYS_BLKSIZE)
#define ORANGEFS_ATTR_SYS_ALL_NOHINT_NOSIZE \
(ORANGEFS_ATTR_SYS_COMMON_ALL | \
ORANGEFS_ATTR_SYS_LNK_TARGET | \
ORANGEFS_ATTR_SYS_DFILE_COUNT | \
ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
ORANGEFS_ATTR_SYS_BLKSIZE)
#define ORANGEFS_XATTR_REPLACE 0x2
#define ORANGEFS_XATTR_CREATE 0x1
#define ORANGEFS_MAX_SERVER_ADDR_LEN 256