path: root/src/mman/mlock.c
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authorRich Felker <>2015-11-02 16:37:51 -0500
committerRich Felker <>2015-11-02 16:37:51 -0500
commitfda365a53074f97f3213caefe70ea13297acecb2 (patch)
tree2506ac8bfc363f5671a2be0c16a0a69c23167fdf /src/mman/mlock.c
parentf9ecb6bfa1dc9f93a10dad97a158e6b8334c586c (diff)
fix mremap memory synchronization and use of variadic argument
since mremap with the MREMAP_FIXED flag is an operation that unmaps existing mappings, it needs to use the vm lock mechanism to ensure that any in-progress synchronization operations using vm identities from before the call have finished. also, the variadic argument was erroneously being read even if the MREMAP_FIXED flag was not passed. in practice this didn't break anything, but it's UB and in theory LTO could turn it into a hard error.
Diffstat (limited to 'src/mman/mlock.c')
0 files changed, 0 insertions, 0 deletions