diff options
| author | Ingo Molnar <mingo@kernel.org> | 2024-01-26 10:26:50 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-01-26 10:26:50 +0100 |
| commit | 42ac0be18bfa09c03f52244f7c3e15c89b38532f (patch) | |
| tree | 601fd5e6da2ca0b77aa8cb22f0e81a29ba6fe1d6 /fs/file_table.c | |
| parent | 8e5647a723c49d73b9f108a8bb38e8c29d3948ea (diff) | |
| parent | ecb1b8288dc7ccbdcb3b9df005fa1c0e0c0388a7 (diff) | |
Merge branch 'linus' into x86/mm, to refresh the branch and pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/file_table.c')
| -rw-r--r-- | fs/file_table.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/fs/file_table.c b/fs/file_table.c index de4a2915bfd4..b991f90571b4 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -75,18 +75,6 @@ static inline void file_free(struct file *f) } } -void release_empty_file(struct file *f) -{ - WARN_ON_ONCE(f->f_mode & (FMODE_BACKING | FMODE_OPENED)); - if (atomic_long_dec_and_test(&f->f_count)) { - security_file_free(f); - put_cred(f->f_cred); - if (likely(!(f->f_mode & FMODE_NOACCOUNT))) - percpu_counter_dec(&nr_files); - kmem_cache_free(filp_cachep, f); - } -} - /* * Return the total number of open files in the system */ @@ -142,7 +130,6 @@ static struct ctl_table fs_stat_sysctls[] = { .extra1 = &sysctl_nr_open_min, .extra2 = &sysctl_nr_open_max, }, - { } }; static int __init init_fs_stat_sysctls(void) @@ -329,9 +316,6 @@ struct file *alloc_file_pseudo(struct inode *inode, struct vfsmount *mnt, const char *name, int flags, const struct file_operations *fops) { - static const struct dentry_operations anon_ops = { - .d_dname = simple_dname - }; struct qstr this = QSTR_INIT(name, strlen(name)); struct path path; struct file *file; @@ -339,8 +323,6 @@ struct file *alloc_file_pseudo(struct inode *inode, struct vfsmount *mnt, path.dentry = d_alloc_pseudo(mnt->mnt_sb, &this); if (!path.dentry) return ERR_PTR(-ENOMEM); - if (!mnt->mnt_sb->s_d_op) - d_set_d_op(path.dentry, &anon_ops); path.mnt = mntget(mnt); d_instantiate(path.dentry, inode); file = alloc_file(&path, flags, fops); @@ -419,7 +401,7 @@ static void delayed_fput(struct work_struct *unused) static void ____fput(struct callback_head *work) { - __fput(container_of(work, struct file, f_rcuhead)); + __fput(container_of(work, struct file, f_task_work)); } /* @@ -445,9 +427,13 @@ void fput(struct file *file) if (atomic_long_dec_and_test(&file->f_count)) { struct task_struct *task = current; + if (unlikely(!(file->f_mode & (FMODE_BACKING | FMODE_OPENED)))) { + file_free(file); + return; + } if (likely(!in_interrupt() && !(task->flags & PF_KTHREAD))) { - init_task_work(&file->f_rcuhead, ____fput); - if (!task_work_add(task, &file->f_rcuhead, TWA_RESUME)) + init_task_work(&file->f_task_work, ____fput); + if (!task_work_add(task, &file->f_task_work, TWA_RESUME)) return; /* * After this task has run exit_task_work(), |