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+[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]]
+
+[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
+is included in the section entitled [[GNU Free Documentation
+License|/fdl]]."]]"""]]
+
+[[!tag open_issue_documentation]]
+
+
+# IRC, freenode, #hurd, 2012-07-30
+
+ <mcsim> Why for big buffers in ext2fs used own allocator, that just
+ allocates many pages at once, instead of using malloc?
+ <mcsim> i.e. can I replace it with malloc, because it just complicates
+ things?
+ <braunr> mcsim: probably because of alignment
+ <braunr> what gets complicated by that ?
+ <mcsim> braunr: than valloc?
+ <mcsim> braunr: this allocator allows to allocate only buffer with size of
+ vm_page_size.
+ <mcsim> valloc just would be clearer.
+ <braunr> valloc ?
+ <braunr> valloc is obsolete
+ <mcsim> braunr: than memalign or posix_memalign?
+ <mcsim> memalign obsolete too... would posix_memalign be eligible?
+ <braunr> mcsim: why memalign instead of the custom allocator ?
+ <mcsim> because, I think, it is clearer. Also, since I need to allocate any
+ amount of pages, not just one, I have to edit custom allocator. Although
+ it is not hard, but using ready stuff seems more sane for me.
+ <mcsim> braunr: ^
+ <braunr> right, but make sure posix_memalign doesn't create too much
+ overhead
+ <mcsim> braunr: what kind of overhead?
+ <braunr> fragmentation
+ <braunr> i assume the glibc implementation is careful about that, but still