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| author |   Alexey Dobriyan <adobriyan@gmail.com> | 2021-05-06 18:02:16 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-06 19:24:11 -0700 |
| commit | d4455faccd6cbe11ddfdbe28723a2122453b4f4e (patch) | |
| tree | 259db030de708622b3215088c3eb664c36b85a4b /include/linux/proc_fs.h | |
| parent | proc: save LOC in __xlate_proc_name() (diff) | |
| download | linux-dev-d4455faccd6cbe11ddfdbe28723a2122453b4f4e.tar.xz linux-dev-d4455faccd6cbe11ddfdbe28723a2122453b4f4e.zip | |
proc: mandate ->proc_lseek in "struct proc_ops"
Now that proc_ops are separate from file_operations and other operations
it easy to check all instances to have ->proc_lseek hook and remove check
in main code.
Note:
nonseekable_open() files naturally don't require ->proc_lseek.
Garbage collect pde_lseek() function.
[adobriyan@gmail.com: smoke test lseek()]
Link: https://lkml.kernel.org/r/YG4OIhChOrVTPgdN@localhost.localdomain
Link: https://lkml.kernel.org/r/YFYX0Bzwxlc7aBa/@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/proc_fs.h')
| -rw-r--r-- | include/linux/proc_fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 000cc0533c33..069c7fd95396 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -32,6 +32,7 @@ struct proc_ops { ssize_t (*proc_read)(struct file *, char __user *, size_t, loff_t *); ssize_t (*proc_read_iter)(struct kiocb *, struct iov_iter *); ssize_t (*proc_write)(struct file *, const char __user *, size_t, loff_t *); + /* mandatory unless nonseekable_open() or equivalent is used */ loff_t (*proc_lseek)(struct file *, loff_t, int); int (*proc_release)(struct inode *, struct file *); __poll_t (*proc_poll)(struct file *, struct poll_table_struct *); |