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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260228-abyss-mmap-relocation-v1-2-c8ec0476894b@astrafall.org> References: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> In-Reply-To: <20260228-abyss-mmap-relocation-v1-0-c8ec0476894b@astrafall.org> To: qemu-devel@nongnu.org Cc: Laurent Vivier , Warner Losh , =?utf-8?q?Alex_R=C3=B8nne_Petersen?= , Richard Henderson , Pierrick Bouvier , Kyle Evans , =?utf-8?q?Alex_Benn=C3=A9e?= , Bingwu Zhang X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1162; i=xtex@astrafall.org; h=from:subject:message-id; bh=7ZViOWjw7i41r2hZsN2jRt+YQI5vco7wj7fO41K7UUM=; b=owGbwMvMwCW2U4Ij7wZL9ETG02pJDJkLT01Nt90o89/8R2nu6y1WQRYc6osZpkQLr92qdPP2B 0MvU/frHRNZGMS4GCzFFFmKDBu8WXXS+UWXlcvCzGFlAhkiLdLAwMDAwMLAl5uYV2qkY6Rnqm2o Z2ioY6RjxMDFKQBTbXSUkeGt5DPmV/Gfnk+I+iOxv/K4z4frx11dmjxe8pVNe/Hwbk4AI8ND+ft 12nNtbG3fbFnxRadx7zPv206i900PmklWPTuXasAMAA== X-Developer-Key: i=xtex@astrafall.org; a=openpgp; fpr=7231804B052C670F15A6771DB918086ED8045B91 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=157.180.15.194; envelope-from=xtex@envs.net; helo=mail.envs.net X-Spam_score_int: -9 X-Spam_score: -1.0 X-Spam_bar: - X-Spam_report: (-1.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.706, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.401, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Fri, 27 Feb 2026 12:17:25 -0500 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @envs.net) X-ZM-MESSAGEID: 1772212702195158500 From: Bingwu Zhang Fixes: f12294b5bd21 ("bsd-user: Use page_find_range_empty for mmap_find_vma= _reserved") Signed-off-by: Bingwu Zhang Reviewed-by: Warner Losh --- bsd-user/mmap.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/bsd-user/mmap.c b/bsd-user/mmap.c index 24ba1728eb55..fe77eceb4856 100644 --- a/bsd-user/mmap.c +++ b/bsd-user/mmap.c @@ -258,12 +258,14 @@ abi_ulong mmap_next_start =3D TASK_UNMAPPED_BASE; static abi_ulong mmap_find_vma_reserved(abi_ulong start, abi_ulong size, abi_ulong alignment) { - abi_ulong ret; + abi_ulong ret =3D -1; =20 - ret =3D page_find_range_empty(start, reserved_va, size, alignment); + if (start <=3D reserved_va) { + ret =3D page_find_range_empty(start, reserved_va, size, alignment); + } if (ret =3D=3D -1 && start > TARGET_PAGE_SIZE) { /* Restart at the beginning of the address space. */ - ret =3D page_find_range_empty(TARGET_PAGE_SIZE, start - 1, + ret =3D page_find_range_empty(TARGET_PAGE_SIZE, MIN(start - 1, res= erved_va), size, alignment); } =20 --=20 2.52.0