Documentation/filesystems/vfs.txt: update file_operations documentation
->readv, ->writev and ->sendfile have been removed while ->show_fdinfo has been added. The documentation should reflect this. Signed-off-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -782,7 +782,7 @@ struct file_operations
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----------------------
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This describes how the VFS can manipulate an open file. As of kernel
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3.5, the following members are defined:
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3.12, the following members are defined:
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struct file_operations {
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struct module *owner;
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@ -803,9 +803,6 @@ struct file_operations {
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int (*aio_fsync) (struct kiocb *, int datasync);
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int (*fasync) (int, struct file *, int);
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int (*lock) (struct file *, int, struct file_lock *);
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ssize_t (*readv) (struct file *, const struct iovec *, unsigned long, loff_t *);
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ssize_t (*writev) (struct file *, const struct iovec *, unsigned long, loff_t *);
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ssize_t (*sendfile) (struct file *, loff_t *, size_t, read_actor_t, void *);
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ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int);
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unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long);
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int (*check_flags)(int);
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@ -814,6 +811,7 @@ struct file_operations {
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ssize_t (*splice_read)(struct file *, struct pipe_inode_info *, size_t, unsigned int);
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int (*setlease)(struct file *, long arg, struct file_lock **);
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long (*fallocate)(struct file *, int mode, loff_t offset, loff_t len);
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int (*show_fdinfo)(struct seq_file *m, struct file *f);
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};
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Again, all methods are called without any locks being held, unless
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@ -864,12 +862,6 @@ otherwise noted.
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lock: called by the fcntl(2) system call for F_GETLK, F_SETLK, and F_SETLKW
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commands
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readv: called by the readv(2) system call
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writev: called by the writev(2) system call
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sendfile: called by the sendfile(2) system call
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get_unmapped_area: called by the mmap(2) system call
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check_flags: called by the fcntl(2) system call for F_SETFL command
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