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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 06:34:02 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 06:34:02 -0700 |
commit | 88dd9c16cecbd105bbe7711b6120333f6f7b5474 (patch) | |
tree | 9632e5988abeaa7e4d20350305edc4e4652b56d1 /Documentation | |
parent | 6dde432553551ae036aae12c2b940677d36c9a5b (diff) | |
parent | d1195c516a9acd767cb541f914be2c6ddcafcfc1 (diff) | |
download | lwn-88dd9c16cecbd105bbe7711b6120333f6f7b5474.tar.gz lwn-88dd9c16cecbd105bbe7711b6120333f6f7b5474.zip |
Merge branch 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block
* 'splice' of git://brick.kernel.dk/data/git/linux-2.6-block:
[PATCH] vfs: add splice_write and splice_read to documentation
[PATCH] Remove sys_ prefix of new syscalls from __NR_sys_*
[PATCH] splice: warning fix
[PATCH] another round of fs/pipe.c cleanups
[PATCH] splice: comment styles
[PATCH] splice: add Ingo as addition copyright holder
[PATCH] splice: unlikely() optimizations
[PATCH] splice: speedups and optimizations
[PATCH] pipe.c/fifo.c code cleanups
[PATCH] get rid of the PIPE_*() macros
[PATCH] splice: speedup __generic_file_splice_read
[PATCH] splice: add direct fd <-> fd splicing support
[PATCH] splice: add optional input and output offsets
[PATCH] introduce a "kernel-internal pipe object" abstraction
[PATCH] splice: be smarter about calling do_page_cache_readahead()
[PATCH] splice: optimize the splice buffer mapping
[PATCH] splice: cleanup __generic_file_splice_read()
[PATCH] splice: only call wake_up_interruptible() when we really have to
[PATCH] splice: potential !page dereference
[PATCH] splice: mark the io page as accessed
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/filesystems/vfs.txt | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index adaa899e5c90..3a2e5520c1e3 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -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); @@ -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 @@ -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 |