| 文件 | 最后提交记录 | 最后更新时间 |
|---|---|---|
fs: Add VirtualBox guest shared folder (vboxsf) support VirtualBox hosts can share folders with guests, this commit adds a VFS driver implementing the Linux-guest side of this, allowing folders exported by the host to be mounted under Linux. This driver depends on the guest <-> host IPC functions exported by the vboxguest driver. Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> | 6 年前 | |
fs: Add VirtualBox guest shared folder (vboxsf) support VirtualBox hosts can share folders with guests, this commit adds a VFS driver implementing the Linux-guest side of this, allowing folders exported by the host to be mounted under Linux. This driver depends on the guest <-> host IPC functions exported by the vboxguest driver. Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> | 6 年前 | |
vfs: get rid of old '->iterate' directory operation All users now just use '->iterate_shared()', which only takes the directory inode lock for reading. Filesystems that never got convered to shared mode now instead use a wrapper that drops the lock, re-takes it in write mode, calls the old function, and then downgrades the lock back to read mode. This way the VFS layer and other callers no longer need to care about filesystems that never got converted to the modern era. The filesystems that use the new wrapper are ceph, coda, exfat, jfs, ntfs, ocfs2, overlayfs, and vboxsf. Honestly, several of them look like they really could just iterate their directories in shared mode and skip the wrapper entirely, but the point of this change is to not change semantics or fix filesystems that haven't been fixed in the last 7+ years, but to finally get rid of the dual iterators. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Christian Brauner <brauner@kernel.org> | 2 年前 | |
vboxsf: explicitly deny setlease attempts stable inclusion from stable-v6.6.31 commit 9872ab5b1e0ec6ab8c999976ffc496df2010428d bugzilla: https://gitee.com/openeuler/kernel/issues/IA4MGD Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9872ab5b1e0ec6ab8c999976ffc496df2010428d -------------------------------- [ Upstream commit 1ece2c43b88660ddbdf8ecb772e9c41ed9cda3dd ] vboxsf does not break leases on its own, so it can't properly handle the case where the hypervisor changes the data. Don't allow file leases on vboxsf. Signed-off-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20240319-setlease-v1-1-5997d67e04b3@kernel.org Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: ZhangPeng <zhangpeng362@huawei.com> | 2 年前 | |
vboxsf: Use flexible arrays for trailing string member The declaration of struct shfl_string used trailing fake flexible arrays for the string member. This was tripping FORTIFY_SOURCE since commit df8fc4e934c1 ("kbuild: Enable -fstrict-flex-arrays=3"). Replace the utf8 and utf16 members with actual flexible arrays, drop the unused ucs2 member, and retriain a 2 byte padding to keep the structure size the same. Reported-by: Larry Finger <Larry.Finger@lwfinger.net> Closes: https://lore.kernel.org/lkml/ab3a70e9-60ed-0f13-e3d4-8866eaccc8c1@lwfinger.net/ Tested-by: Larry Finger <Larry.Finger@lwfinger.net> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230720151458.never.673-kees@kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> | 2 年前 | |
vboxsf: Add __nonstring annotations for unterminated strings mainline inclusion from mainline-v6.14-rc7 commit 986a6f5eacb900ea0f6036ef724b26e76be40f65 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/ICCVOJ Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=986a6f5eacb900ea0f6036ef724b26e76be40f65 -------------------------------- When a character array without a terminating NUL character has a static initializer, GCC 15's -Wunterminated-string-initialization will only warn if the array lacks the "nonstring" attribute[1]. Mark the arrays with __nonstring to and correctly identify the char array as "not a C string" and thereby eliminate the warning. This effectively reverts the change in 4e7487245abc ("vboxsf: fix building with GCC 15"), to add the annotation that has other uses (i.e. warning if the string is ever used with C string APIs). Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117178 [1] Cc: Hans de Goede <hdegoede@redhat.com> Cc: Brahmajit Das <brahmajit.xyz@gmail.com> Cc: Christian Brauner <brauner@kernel.org> Cc: linux-fsdevel@vger.kernel.org Signed-off-by: Kees Cook <kees@kernel.org> Link: https://lore.kernel.org/r/20250310222530.work.374-kees@kernel.org Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Christian Brauner <brauner@kernel.org> (cherry picked from commit 986a6f5eacb900ea0f6036ef724b26e76be40f65) Signed-off-by: Wentao Guan <guanwentao@uniontech.com> | 1 年前 | |
fs: pass the request_mask to generic_fillattr generic_fillattr just fills in the entire stat struct indiscriminately today, copying data from the inode. There is at least one attribute (STATX_CHANGE_COOKIE) that can have side effects when it is reported, and we're looking at adding more with the addition of multigrain timestamps. Add a request_mask argument to generic_fillattr and have most callers just pass in the value that is passed to getattr. Have other callers (e.g. ksmbd) just pass in STATX_BASIC_STATS. Also move the setting of STATX_CHANGE_COOKIE into generic_fillattr. Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com> Reviewed-by: Xiubo Li <xiubli@redhat.com> Reviewed-by: "Paulo Alcantara (SUSE)" <pc@manguebit.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Jeff Layton <jlayton@kernel.org> Message-Id: <20230807-mgctime-v7-2-d1dec143a704@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org> | 2 年前 | |
fs: Add VirtualBox guest shared folder (vboxsf) support VirtualBox hosts can share folders with guests, this commit adds a VFS driver implementing the Linux-guest side of this, allowing folders exported by the host to be mounted under Linux. This driver depends on the guest <-> host IPC functions exported by the vboxguest driver. Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> | 6 年前 | |
fs: port ->getattr() to pass mnt_idmap Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org> | 3 年前 |