+++ /dev/null
-From e7478158e1378325907edfdd960eca98a1be405b Mon Sep 17 00:00:00 2001
-From: "Jason A. Donenfeld" <Jason@zx2c4.com>
-Date: Wed, 29 Jun 2022 15:06:57 +0200
-Subject: fs: clear or set FMODE_LSEEK based on llseek function
-
-From: Jason A. Donenfeld <Jason@zx2c4.com>
-
-commit e7478158e1378325907edfdd960eca98a1be405b upstream.
-
-Pipe-like behaviour on llseek(2) (i.e. unconditionally failing with
--ESPIPE) can be expresses in 3 ways:
- 1) ->llseek set to NULL in file_operations
- 2) ->llseek set to no_llseek in file_operations
- 3) FMODE_LSEEK *not* set in ->f_mode.
-
-Enforce (3) in cases (1) and (2); that will allow to simplify the
-checks and eventually get rid of no_llseek boilerplate.
-
-Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
----
- fs/file_table.c | 2 ++
- fs/open.c | 4 ++++
- 2 files changed, 6 insertions(+)
-
---- a/fs/file_table.c
-+++ b/fs/file_table.c
-@@ -198,6 +198,8 @@ static struct file *alloc_file(const str
- file->f_mapping = path->dentry->d_inode->i_mapping;
- file->f_wb_err = filemap_sample_wb_err(file->f_mapping);
- file->f_sb_err = file_sample_sb_err(file);
-+ if (fop->llseek && fop->llseek != no_llseek)
-+ file->f_mode |= FMODE_LSEEK;
- if ((file->f_mode & FMODE_READ) &&
- likely(fop->read || fop->read_iter))
- file->f_mode |= FMODE_CAN_READ;
---- a/fs/open.c
-+++ b/fs/open.c
-@@ -834,6 +834,10 @@ static int do_dentry_open(struct file *f
- if ((f->f_mode & FMODE_WRITE) &&
- likely(f->f_op->write || f->f_op->write_iter))
- f->f_mode |= FMODE_CAN_WRITE;
-+ if ((f->f_mode & FMODE_LSEEK) && !f->f_op->llseek)
-+ f->f_mode &= ~FMODE_LSEEK;
-+ if ((f->f_mode & FMODE_LSEEK) && f->f_op->llseek == no_llseek)
-+ f->f_mode &= ~FMODE_LSEEK;
-
- f->f_write_hint = WRITE_LIFE_NOT_SET;
- f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
media-venus-dec-handle-the-case-where-find_format-fails.patch
x86-topology-fix-multiple-packages-shown-on-a-single-package-system.patch
x86-topology-fix-duplicated-core-id-within-a-package.patch
-fs-clear-or-set-fmode_lseek-based-on-llseek-function.patch
btrfs-fix-processing-of-delayed-data-refs-during-bac.patch
btrfs-fix-processing-of-delayed-tree-block-refs-duri.patch
drm-vc4-add-module-dependency-on-hdmi-codec.patch