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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-30 12:38:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-30 12:38:13 -0700 |
| commit | 6f01c935d96cd4eb8bbbc5249bd9a754b6939e0a (patch) | |
| tree | 4221926366762159db02ee7f2b79658faa9ce9f9 /mm | |
| parent | 451819aa5ad0a22b23f0eb178816dc72b73ab903 (diff) | |
| parent | 2949e8427af3bb74a1e26354cb68c1700663c827 (diff) | |
| download | linux-6f01c935d96cd4eb8bbbc5249bd9a754b6939e0a.tar.bz2 | |
Merge tag 'locks-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull file locking updates from Jeff Layton:
"This starts with a couple of fixes for potential deadlocks in the
fowner/fasync handling.
The next patch removes the old mandatory locking code from the kernel
altogether.
The last patch cleans up rw_verify_area a bit more after the mandatory
locking removal"
* tag 'locks-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
fs: clean up after mandatory file locking support removal
fs: remove mandatory file locking support
fcntl: fix potential deadlock for &fasync_struct.fa_lock
fcntl: fix potential deadlocks for &fown_struct.lock
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mmap.c | 6 | ||||
| -rw-r--r-- | mm/nommu.c | 3 |
2 files changed, 0 insertions, 9 deletions
diff --git a/mm/mmap.c b/mm/mmap.c index ca54d36d203a..181a113b545d 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -1517,12 +1517,6 @@ unsigned long do_mmap(struct file *file, unsigned long addr, if (IS_APPEND(inode) && (file->f_mode & FMODE_WRITE)) return -EACCES; - /* - * Make sure there are no mandatory locks on the file. - */ - if (locks_verify_locked(file)) - return -EAGAIN; - vm_flags |= VM_SHARED | VM_MAYSHARE; if (!(file->f_mode & FMODE_WRITE)) vm_flags &= ~(VM_MAYWRITE | VM_SHARED); diff --git a/mm/nommu.c b/mm/nommu.c index 3a93d4054810..9d0ad98f838c 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -826,9 +826,6 @@ static int validate_mmap_request(struct file *file, (file->f_mode & FMODE_WRITE)) return -EACCES; - if (locks_verify_locked(file)) - return -EAGAIN; - if (!(capabilities & NOMMU_MAP_DIRECT)) return -ENODEV; |