bnx2: Set rx buffer water marks based on MTU.

[safe/jmp/linux-2.6] / fs / file_table.c

diff --git a/fs/file_table.c b/fs/file_table.c
index 71efc70..5ad0eca 100644 (file)
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -8,6 +8,7 @@
 #include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/file.h>
+#include <linux/fdtable.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/fs.h>
@@ -42,6 +43,7 @@ static inline void file_free_rcu(struct rcu_head *head)
 static inline void file_free(struct file *f)
 {
        percpu_counter_dec(&nr_files);
+       file_check_state(f);
        call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
 }
 
@@ -118,7 +120,7 @@ struct file *get_empty_filp(void)
 
        tsk = current;
        INIT_LIST_HEAD(&f->f_u.fu_list);
-       atomic_set(&f->f_count, 1);
+       atomic_long_set(&f->f_count, 1);
        rwlock_init(&f->f_owner.lock);
        f->f_uid = tsk->fsuid;
        f->f_gid = tsk->fsgid;
@@ -159,7 +161,7 @@ EXPORT_SYMBOL(get_empty_filp);
  * code should be moved into this function.
  */
 struct file *alloc_file(struct vfsmount *mnt, struct dentry *dentry,
-               mode_t mode, const struct file_operations *fop)
+               fmode_t mode, const struct file_operations *fop)
 {
        struct file *file;
        struct path;
@@ -191,7 +193,7 @@ EXPORT_SYMBOL(alloc_file);
  * of this should be moving to alloc_file().
  */
 int init_file(struct file *file, struct vfsmount *mnt, struct dentry *dentry,
-          mode_t mode, const struct file_operations *fop)
+          fmode_t mode, const struct file_operations *fop)
 {
        int error = 0;
        file->f_path.dentry = dentry;
@@ -207,6 +209,7 @@ int init_file(struct file *file, struct vfsmount *mnt, struct dentry *dentry,
         * that we can do debugging checks at __fput()
         */
        if ((mode & FMODE_WRITE) && !special_file(dentry->d_inode->i_mode)) {
+               file_take_write(file);
                error = mnt_want_write(mnt);
                WARN_ON(error);
        }
@@ -216,7 +219,7 @@ EXPORT_SYMBOL(init_file);
 
 void fput(struct file *file)
 {
-       if (atomic_dec_and_test(&file->f_count))
+       if (atomic_long_dec_and_test(&file->f_count))
                __fput(file);
 }
 
@@ -237,8 +240,13 @@ void drop_file_write_access(struct file *file)
        struct inode *inode = dentry->d_inode;
 
        put_write_access(inode);
-       if (!special_file(inode->i_mode))
-               mnt_drop_write(mnt);
+
+       if (special_file(inode->i_mode))
+               return;
+       if (file_check_writeable(file) != 0)
+               return;
+       mnt_drop_write(mnt);
+       file_release_write(file);
 }
 EXPORT_SYMBOL_GPL(drop_file_write_access);
 
@@ -261,6 +269,10 @@ void __fput(struct file *file)
        eventpoll_release(file);
        locks_remove_flock(file);
 
+       if (unlikely(file->f_flags & FASYNC)) {
+               if (file->f_op && file->f_op->fasync)
+                       file->f_op->fasync(-1, file, 0);
+       }
        if (file->f_op && file->f_op->release)
                file->f_op->release(inode, file);
        security_file_free(file);
@@ -286,7 +298,7 @@ struct file *fget(unsigned int fd)
        rcu_read_lock();
        file = fcheck_files(files, fd);
        if (file) {
-               if (!atomic_inc_not_zero(&file->f_count)) {
+               if (!atomic_long_inc_not_zero(&file->f_count)) {
                        /* File object ref couldn't be taken */
                        rcu_read_unlock();
                        return NULL;
@@ -318,7 +330,7 @@ struct file *fget_light(unsigned int fd, int *fput_needed)
                rcu_read_lock();
                file = fcheck_files(files, fd);
                if (file) {
-                       if (atomic_inc_not_zero(&file->f_count))
+                       if (atomic_long_inc_not_zero(&file->f_count))
                                *fput_needed = 1;
                        else
                                /* Didn't get the reference, someone's freed */
@@ -333,7 +345,7 @@ struct file *fget_light(unsigned int fd, int *fput_needed)
 
 void put_filp(struct file *file)
 {
-       if (atomic_dec_and_test(&file->f_count)) {
+       if (atomic_long_dec_and_test(&file->f_count)) {
                security_file_free(file);
                file_kill(file);
                file_free(file);