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(parent: cb3bc23) | patch
Swap only altered elements of the grouplist in getgroups() (Kirill Shutemov).
authorbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Sat, 20 Sep 2008 02:12:08 +0000 (02:12 +0000)
committerbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Sat, 20 Sep 2008 02:12:08 +0000 (02:12 +0000)
commita2155fcc65fbf5d0c49a263fac855c831ee17a99
treee2ea46908628cd8a740b5cfb562aceec9726aa2atree
parentcb3bc23361830872663395de112c2c76ff00be50commit | diff
Swap only altered elements of the grouplist in getgroups() (Kirill Shutemov).

getgroups() returns the number of supplementary group IDs, so it's
unnessary to swap the entire array.  It can dramatically speed up
the syscall: on recent Linux kernels NGROUPS_MAX=65536.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5267 c046a42c-6fe2-441c-8c8c-71466251a162
linux-user/syscall.c diff | blob | history
Obsolete Qemu-dm 3.4 stable branch