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Revision d90c732122a1f6d0efe388a8a204f67f144b2eb3 authored by Josef Bacik on 17 May 2011, 13:50:54 UTC, committed by Josef Bacik on 23 May 2011, 17:03:17 UTC 
Btrfs: leave spinning on lookup and map the leaf
 
On lookup we only want to read the inode item, so leave the path spinning.  Also
we're just wholesale reading the leaf off, so map the leaf so we don't do a
bunch of kmap/kunmaps.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
1 parent 207dde8
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xfs_vnodeops.h 
#ifndef _XFS_VNODEOPS_H
#define _XFS_VNODEOPS_H 1

struct attrlist_cursor_kern;
struct file;
struct iattr;
struct inode;
struct iovec;
struct kiocb;
struct pipe_inode_info;
struct uio;
struct xfs_inode;
struct xfs_iomap;


int xfs_setattr(struct xfs_inode *ip, struct iattr *vap, int flags);
#define	XFS_ATTR_DMI		0x01	/* invocation from a DMI function */
#define	XFS_ATTR_NONBLOCK	0x02	/* return EAGAIN if operation would block */
#define XFS_ATTR_NOLOCK		0x04	/* Don't grab any conflicting locks */
#define XFS_ATTR_NOACL		0x08	/* Don't call xfs_acl_chmod */
#define XFS_ATTR_SYNC		0x10	/* synchronous operation required */

int xfs_readlink(struct xfs_inode *ip, char *link);
int xfs_release(struct xfs_inode *ip);
int xfs_inactive(struct xfs_inode *ip);
int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
		struct xfs_inode **ipp, struct xfs_name *ci_name);
int xfs_create(struct xfs_inode *dp, struct xfs_name *name, mode_t mode,
		xfs_dev_t rdev, struct xfs_inode **ipp);
int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
		struct xfs_inode *ip);
int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
		struct xfs_name *target_name);
int xfs_readdir(struct xfs_inode	*dp, void *dirent, size_t bufsize,
		       xfs_off_t *offset, filldir_t filldir);
int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
		const char *target_path, mode_t mode, struct xfs_inode **ipp);
int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
int xfs_change_file_space(struct xfs_inode *ip, int cmd,
		xfs_flock64_t *bf, xfs_off_t offset, int attr_flags);
int xfs_rename(struct xfs_inode *src_dp, struct xfs_name *src_name,
		struct xfs_inode *src_ip, struct xfs_inode *target_dp,
		struct xfs_name *target_name, struct xfs_inode *target_ip);
int xfs_attr_get(struct xfs_inode *ip, const unsigned char *name,
		unsigned char *value, int *valuelenp, int flags);
int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name,
		unsigned char *value, int valuelen, int flags);
int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags);
int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize,
		int flags, struct attrlist_cursor_kern *cursor);
int xfs_bmap(struct xfs_inode *ip, xfs_off_t offset, ssize_t count,
		int flags, struct xfs_iomap *iomapp, int *niomaps);
void xfs_tosspages(struct xfs_inode *inode, xfs_off_t first,
		xfs_off_t last, int fiopt);
int xfs_flushinval_pages(struct xfs_inode *ip, xfs_off_t first,
		xfs_off_t last, int fiopt);
int xfs_flush_pages(struct xfs_inode *ip, xfs_off_t first,
		xfs_off_t last, uint64_t flags, int fiopt);
int xfs_wait_on_pages(struct xfs_inode *ip, xfs_off_t first, xfs_off_t last);

int xfs_zero_eof(struct xfs_inode *, xfs_off_t, xfs_fsize_t);

#endif /* _XFS_VNODEOPS_H */
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