Searched hist:e35fd660 (Results 1 – 3 of 3) sorted by relevance
| /openbmc/linux/fs/ext4/ |
| H A D | extents.c | e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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| H A D | ext4.h | e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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| H A D | inode.c | e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
e35fd660 Sun May 16 18:00:00 CDT 2010 Theodore Ts'o <tytso@mit.edu> ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks()
Jack up ext4_get_blocks() and add a new function, ext4_map_blocks()
which uses a much smaller structure, struct ext4_map_blocks which is
20 bytes, as opposed to a struct buffer_head, which nearly 5 times
bigger on an x86_64 machine. By switching things to use
ext4_map_blocks(), we can save stack space by using ext4_map_blocks()
since we can avoid allocating a struct buffer_head on the stack.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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