INVALIDATE_MAPPING_P(9) Memory Management in Linux INVALIDATE_MAPPING_P(9)NAME
invalidate_mapping_pages - Invalidate all the unlocked pages of one inode
SYNOPSIS
unsigned long invalidate_mapping_pages(struct address_space * mapping, pgoff_t start, pgoff_t end);
ARGUMENTS
mapping
the address_space which holds the pages to invalidate
start
the offset 'from' which to invalidate
end
the offset 'to' which to invalidate (inclusive)
DESCRIPTION
This function only removes the unlocked pages, if you want to remove all the pages of one inode, you must call truncate_inode_pages.
invalidate_mapping_pages will not block on IO activity. It will not invalidate pages which are dirty, locked, under writeback or mapped
into pagetables.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 INVALIDATE_MAPPING_P(9)
Check Out this Related Man Page
GLINVALIDATEBUFFERSU(3G) OpenGL Manual GLINVALIDATEBUFFERSU(3G)NAME
glInvalidateBufferSubData - invalidate a region of a buffer object's data store
C SPECIFICATION
void glInvalidateBufferSubData(GLuint buffer, GLintptr offset, GLsizeiptr length);
PARAMETERS
buffer
The name of a buffer object, a subrange of whose data store to invalidate.
offset
The offset within the buffer's data store of the start of the range to be invalidated.
length
The length of the range within the buffer's data store to be invalidated.
DESCRIPTION
glInvalidateBufferSubData invalidates all or part of the content of the data store of a buffer object. After invalidation, the content of
the specified range of the buffer's data store becomes undefined. The start of the range is given by offset and its size is given by
length, both measured in basic machine units.
ERRORS
GL_INVALID_VALUE is generated if offset or length is negative, or if offset + length is greater than the value of GL_BUFFER_SIZE for
buffer.
GL_INVALID_VALUE is generated if buffer is not the name of an existing buffer object.
GL_INVALID_OPERATION is generated if any part of buffer is currently mapped.
ASSOCIATED GETS
glGetBufferParameter() with argument GL_BUFFER_SIZE
SEE ALSO
glInvalidateTexSubImage(),, glInvalidateTexImage(), glInvalidateBufferData(), glInvalidateFramebuffer(), glInvalidateSubFramebuffer().
COPYRIGHT
Copyright (C) 2012 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.
AUTHORS
opengl.org
opengl.org 06/10/2014 GLINVALIDATEBUFFERSU(3G)
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