diff options
author | 2016-06-09 16:32:38 -0400 | |
---|---|---|
committer | 2016-08-02 15:38:45 -0400 | |
commit | 71680c18c8f22deafbaaf76d1c2d0eed2899a3d2 (patch) | |
tree | 19a4fae045bbbb083983bfdc0c76ad417db744df /fs | |
parent | orangefs: Use d_time to avoid excessive lookups (diff) | |
download | linux-71680c18c8f22deafbaaf76d1c2d0eed2899a3d2.tar.gz linux-71680c18c8f22deafbaaf76d1c2d0eed2899a3d2.tar.bz2 linux-71680c18c8f22deafbaaf76d1c2d0eed2899a3d2.zip |
orangefs: Cache getattr results.
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>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/orangefs/inode.c | 6 | ||||
-rw-r--r-- | fs/orangefs/namei.c | 7 | ||||
-rw-r--r-- | fs/orangefs/orangefs-kernel.h | 4 | ||||
-rw-r--r-- | fs/orangefs/orangefs-utils.c | 38 | ||||
-rw-r--r-- | fs/orangefs/protocol.h | 8 |
5 files changed, 34 insertions, 29 deletions
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c index 2e63e6d0a68e..28a0557a69be 100644 --- a/fs/orangefs/inode.c +++ b/fs/orangefs/inode.c @@ -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; diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c index b37f80bf0bec..dde6c36f5a69 100644 --- a/fs/orangefs/namei.c +++ b/fs/orangefs/namei.c @@ -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; diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h index 4b6e132d5a0f..9338fe64820d 100644 --- a/fs/orangefs/orangefs-kernel.h +++ b/fs/orangefs/orangefs-kernel.h @@ -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); diff --git a/fs/orangefs/orangefs-utils.c b/fs/orangefs/orangefs-utils.c index c5fbc62357c6..69b4d8af8d81 100644 --- a/fs/orangefs/orangefs-utils.c +++ b/fs/orangefs/orangefs-utils.c @@ -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; diff --git a/fs/orangefs/protocol.h b/fs/orangefs/protocol.h index 1efc6f8a5224..3d7418c728f5 100644 --- a/fs/orangefs/protocol.h +++ b/fs/orangefs/protocol.h @@ -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 |