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Merge tag 'fuse-update-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

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Pull fuse updates from Miklos Szeredi:

 - Fix a page locking bug in write (introduced in 2.6.26)

 - Allow sgid bit to be killed in setacl()

 - Miscellaneous fixes and cleanups

* tag 'fuse-update-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  cuse: simplify refcount
  cuse: prevent clone
  virtiofs: fix userns
  virtiofs: remove useless function
  virtiofs: split requests that exceed virtqueue size
  virtiofs: fix memory leak in virtio_fs_probe()
  fuse: invalidate attrs when page writeback completes
  fuse: add a flag FUSE_SETXATTR_ACL_KILL_SGID to kill SGID
  fuse: extend FUSE_SETXATTR request
  fuse: fix matching of FUSE_DEV_IOC_CLONE command
  fuse: fix a typo
  fuse: don't zero pages twice
  fuse: fix typo for fuse_conn.max_pages comment
  fuse: fix write deadlock
This commit is contained in:
Linus Torvalds
2021-04-30 15:23:16 -07:00
parent d652502ef4 3c9c14338c
commit 9ec1efbf9d
9 changed files with 111 additions and 57 deletions
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14
include/uapi/linux/fuse.h
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@@ -179,6 +179,8 @@
* 7.33
* - add FUSE_HANDLE_KILLPRIV_V2, FUSE_WRITE_KILL_SUIDGID, FATTR_KILL_SUIDGID
* - add FUSE_OPEN_KILL_SUIDGID
* - extend fuse_setxattr_in, add FUSE_SETXATTR_EXT
* - add FUSE_SETXATTR_ACL_KILL_SGID
*/
#ifndef _LINUX_FUSE_H
@@ -330,6 +332,7 @@ struct fuse_file_lock {
* does not have CAP_FSETID. Additionally upon
* write/truncate sgid is killed only if file has group
* execute permission. (Same as Linux VFS behavior).
* FUSE_SETXATTR_EXT: Server supports extended struct fuse_setxattr_in
*/
#define FUSE_ASYNC_READ (1 << 0)
#define FUSE_POSIX_LOCKS (1 << 1)
@@ -360,6 +363,7 @@ struct fuse_file_lock {
#define FUSE_MAP_ALIGNMENT (1 << 26)
#define FUSE_SUBMOUNTS (1 << 27)
#define FUSE_HANDLE_KILLPRIV_V2 (1 << 28)
#define FUSE_SETXATTR_EXT (1 << 29)
/**
* CUSE INIT request/reply flags
@@ -451,6 +455,12 @@ struct fuse_file_lock {
*/
#define FUSE_OPEN_KILL_SUIDGID (1 << 0)
/**
* setxattr flags
* FUSE_SETXATTR_ACL_KILL_SGID: Clear SGID when system.posix_acl_access is set
*/
#define FUSE_SETXATTR_ACL_KILL_SGID (1 << 0)
enum fuse_opcode {
FUSE_LOOKUP = 1,
FUSE_FORGET = 2, /* no reply */
@@ -681,9 +691,13 @@ struct fuse_fsync_in {
uint32_t padding;
};
#define FUSE_COMPAT_SETXATTR_IN_SIZE 8
struct fuse_setxattr_in {
uint32_t size;
uint32_t flags;
uint32_t setxattr_flags;
uint32_t padding;
};
struct fuse_getxattr_in {