summaryrefslogtreecommitdiffstats
path: root/Documentation
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/Locking7
-rw-r--r--Documentation/filesystems/vfs.txt13
2 files changed, 1 insertions, 19 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index 2c391338c675..37bf0a9de75c 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -441,8 +441,6 @@ prototypes:
int (*iterate) (struct file *, struct dir_context *);
int (*iterate_shared) (struct file *, struct dir_context *);
__poll_t (*poll) (struct file *, struct poll_table_struct *);
- struct wait_queue_head * (*get_poll_head)(struct file *, __poll_t);
- __poll_t (*poll_mask) (struct file *, __poll_t);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
@@ -473,7 +471,7 @@ prototypes:
};
locking rules:
- All except for ->poll_mask may block.
+ All may block.
->llseek() locking has moved from llseek to the individual llseek
implementations. If your fs is not using generic_file_llseek, you
@@ -505,9 +503,6 @@ in sys_read() and friends.
the lease within the individual filesystem to record the result of the
operation
-->poll_mask can be called with or without the waitqueue lock for the waitqueue
-returned from ->get_poll_head.
-
--------------------------- dquot_operations -------------------------------
prototypes:
int (*write_dquot) (struct dquot *);
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index 829a7b7857a4..f608180ad59d 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -857,8 +857,6 @@ struct file_operations {
ssize_t (*write_iter) (struct kiocb *, struct iov_iter *);
int (*iterate) (struct file *, struct dir_context *);
__poll_t (*poll) (struct file *, struct poll_table_struct *);
- struct wait_queue_head * (*get_poll_head)(struct file *, __poll_t);
- __poll_t (*poll_mask) (struct file *, __poll_t);
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
@@ -903,17 +901,6 @@ otherwise noted.
activity on this file and (optionally) go to sleep until there
is activity. Called by the select(2) and poll(2) system calls
- get_poll_head: Returns the struct wait_queue_head that callers can
- wait on. Callers need to check the returned events using ->poll_mask
- once woken. Can return NULL to indicate polling is not supported,
- or any error code using the ERR_PTR convention to indicate that a
- grave error occured and ->poll_mask shall not be called.
-
- poll_mask: return the mask of EPOLL* values describing the file descriptor
- state. Called either before going to sleep on the waitqueue returned by
- get_poll_head, or after it has been woken. If ->get_poll_head and
- ->poll_mask are implemented ->poll does not need to be implement.
-
unlocked_ioctl: called by the ioctl(2) system call.
compat_ioctl: called by the ioctl(2) system call when 32 bit system calls