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https://github.com/versity/scoutfs.git
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Zach Brown
b9a0f1709f
Add the .totl. xattr tag. When the tag is set the end of the name specifies a total name with 3 encoded u64s separated by dots. The value of the xattr is a u64 that is added to the named total. An ioctl is added to read the totals. Signed-off-by: Zach Brown <zab@versity.com>
30 lines
1.0 KiB
C
30 lines
1.0 KiB
C
#ifndef _SCOUTFS_XATTR_H_
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#define _SCOUTFS_XATTR_H_
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ssize_t scoutfs_getxattr(struct dentry *dentry, const char *name, void *buffer,
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size_t size);
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int scoutfs_setxattr(struct dentry *dentry, const char *name,
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const void *value, size_t size, int flags);
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int scoutfs_removexattr(struct dentry *dentry, const char *name);
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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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struct scoutfs_xattr_prefix_tags {
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unsigned long hide:1,
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srch:1,
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totl:1;
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};
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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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#endif
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