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d480243c11
The aio_read and aio_write callbacks are no longer used by newer kernels which now uses iter based readers and writers. We can avoid implementing plain .read and .write as an iter will be generated when needed for us automatically. We add a new data_wait_check_iter() function accordingly. With these methods removed from the kernel, the el8 kernel no longer uses the extended ops wrapper struct and is much closer now to upstream. As a result, a lot of methods are moving around from inode_dir_operations to and from inode_file_operations etc, and perhaps things will look a bit more structured as a result. As a result, we need a slightly different data_wait_check() that accounts for the iter and offset properly. Signed-off-by: Auke Kok <auke.kok@versity.com>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
#ifndef _SCOUTFS_DIR_H_
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#define _SCOUTFS_DIR_H_
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#include "format.h"
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#include "lock.h"
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extern const struct file_operations scoutfs_dir_fops;
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#ifdef KC_LINUX_HAVE_RHEL_IOPS_WRAPPER
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extern const struct inode_operations_wrapper scoutfs_dir_iops;
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#else
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extern const struct inode_operations scoutfs_dir_iops;
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#endif
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extern const struct inode_operations scoutfs_symlink_iops;
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extern const struct dentry_operations scoutfs_dentry_ops;
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struct scoutfs_link_backref_entry {
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struct list_head head;
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u64 dir_ino;
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u64 dir_pos;
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u16 name_len;
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u8 d_type;
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bool last;
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struct scoutfs_dirent dent;
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/* the full name is allocated and stored in dent.name[] */
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};
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int scoutfs_dir_get_backref_path(struct super_block *sb, u64 ino, u64 dir_ino,
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u64 dir_pos, struct list_head *list);
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void scoutfs_dir_free_backref_path(struct super_block *sb,
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struct list_head *list);
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int scoutfs_dir_add_next_linkrefs(struct super_block *sb, u64 ino, u64 dir_ino, u64 dir_pos,
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int count, struct list_head *list);
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int scoutfs_symlink_drop(struct super_block *sb, u64 ino,
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struct scoutfs_lock *lock, u64 i_size);
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#endif
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