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yaml
---
r: 25617
b: refs/heads/master
c: d1195c5
h: refs/heads/master
i:
  25615: fe86f0f
v: v3
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Pekka J Enberg authored and Jens Axboe committed Apr 11, 2006
1 parent 4fffd26 commit ea96fd3
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 7519fdc90fe577cb966ab1ce2bf51ac639f05a0e
refs/heads/master: d1195c516a9acd767cb541f914be2c6ddcafcfc1
12 changes: 11 additions & 1 deletion trunk/Documentation/filesystems/vfs.txt
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Expand Up @@ -694,7 +694,7 @@ struct file_operations
----------------------

This describes how the VFS can manipulate an open file. As of kernel
2.6.13, the following members are defined:
2.6.17, the following members are defined:

struct file_operations {
loff_t (*llseek) (struct file *, loff_t, int);
Expand Down Expand Up @@ -723,6 +723,10 @@ struct file_operations {
int (*check_flags)(int);
int (*dir_notify)(struct file *filp, unsigned long arg);
int (*flock) (struct file *, int, struct file_lock *);
ssize_t (*splice_write)(struct pipe_inode_info *, struct file *, size_t, unsigned
int);
ssize_t (*splice_read)(struct file *, struct pipe_inode_info *, size_t, unsigned
int);
};

Again, all methods are called without any locks being held, unless
Expand Down Expand Up @@ -790,6 +794,12 @@ otherwise noted.

flock: called by the flock(2) system call

splice_write: called by the VFS to splice data from a pipe to a file. This
method is used by the splice(2) system call

splice_read: called by the VFS to splice data from file to a pipe. This
method is used by the splice(2) system call

Note that the file operations are implemented by the specific
filesystem in which the inode resides. When opening a device node
(character or block special) most filesystems will call special
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