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38c6d66ffc
Add support for the indx xattr tag which lets xattrs determine the sort order of by their inode number in a global index. Signed-off-by: Zach Brown <zab@versity.com>
40 lines
1.6 KiB
C
40 lines
1.6 KiB
C
#ifndef _SCOUTFS_XATTR_H_
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#define _SCOUTFS_XATTR_H_
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struct scoutfs_xattr_prefix_tags {
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unsigned long hide:1,
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indx:1,
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srch:1,
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totl:1;
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};
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extern const struct xattr_handler *scoutfs_xattr_handlers[];
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int scoutfs_xattr_get_locked(struct inode *inode, const char *name, void *buffer, size_t size,
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struct scoutfs_lock *lck);
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int scoutfs_xattr_set_locked(struct inode *inode, const char *name, size_t name_len,
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const void *value, size_t size, int flags,
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const struct scoutfs_xattr_prefix_tags *tgs,
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struct scoutfs_lock *lck, struct scoutfs_lock *totl_lock,
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struct list_head *ind_locks);
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ssize_t scoutfs_listxattr(struct dentry *dentry, char *buffer, size_t size);
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ssize_t scoutfs_list_xattrs(struct inode *inode, char *buffer,
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size_t size, __u32 *hash_pos, __u64 *id_pos,
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bool e_range, bool show_hidden);
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int scoutfs_xattr_drop(struct super_block *sb, u64 ino,
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struct scoutfs_lock *lock);
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int scoutfs_xattr_parse_tags(const char *name, unsigned int name_len,
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struct scoutfs_xattr_prefix_tags *tgs);
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void scoutfs_xattr_init_totl_key(struct scoutfs_key *key, u64 *name);
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int scoutfs_xattr_combine_totl(void *dst, int dst_len, void *src, int src_len);
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void scoutfs_xattr_indx_get_range(struct scoutfs_key *start, struct scoutfs_key *end);
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void scoutfs_xattr_init_indx_key(struct scoutfs_key *key, u8 major, u64 minor, u64 ino, u64 xid);
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void scoutfs_xattr_get_indx_key(struct scoutfs_key *key, u8 *major, u64 *minor, u64 *ino, u64 *xid);
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void scoutfs_xattr_set_indx_key_xid(struct scoutfs_key *key, u64 xid);
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#endif
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