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brlocks/lglocks: API cleanups

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lglocks and brlocks are currently generated with some complicated macros
in lglock.h.  But there's no reason to not just use common utility
functions and put all the data into a common data structure.

In preparation, this patch changes the API to look more like normal
function calls with pointers, not magic macros.

The patch is rather large because I move over all users in one go to keep
it bisectable.  This impacts the VFS somewhat in terms of lines changed.
But no actual behaviour change.

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andi Kleen
2012-05-08 13:32:02 +09:30
committed by Al Viro
parent eea62f831b
commit 962830df36
6 changed files with 96 additions and 95 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/file_table.c
+8 -8
View File
@@ -420,9 +420,9 @@ static inline void __file_sb_list_add(struct file *file, struct super_block *sb)
*/
void file_sb_list_add(struct file *file, struct super_block *sb)
{
lg_local_lock(files_lglock);
lg_local_lock(&files_lglock);
__file_sb_list_add(file, sb);
lg_local_unlock(files_lglock);
lg_local_unlock(&files_lglock);
}
/**
@@ -435,9 +435,9 @@ void file_sb_list_add(struct file *file, struct super_block *sb)
void file_sb_list_del(struct file *file)
{
if (!list_empty(&file->f_u.fu_list)) {
lg_local_lock_cpu(files_lglock, file_list_cpu(file));
lg_local_lock_cpu(&files_lglock, file_list_cpu(file));
list_del_init(&file->f_u.fu_list);
lg_local_unlock_cpu(files_lglock, file_list_cpu(file));
lg_local_unlock_cpu(&files_lglock, file_list_cpu(file));
}
}
@@ -484,7 +484,7 @@ void mark_files_ro(struct super_block *sb)
struct file *f;
retry:
lg_global_lock(files_lglock);
lg_global_lock(&files_lglock);
do_file_list_for_each_entry(sb, f) {
struct vfsmount *mnt;
if (!S_ISREG(f->f_path.dentry->d_inode->i_mode))
@@ -501,12 +501,12 @@ retry:
file_release_write(f);
mnt = mntget(f->f_path.mnt);
/* This can sleep, so we can't hold the spinlock. */
lg_global_unlock(files_lglock);
lg_global_unlock(&files_lglock);
mnt_drop_write(mnt);
mntput(mnt);
goto retry;
} while_file_list_for_each_entry;
lg_global_unlock(files_lglock);
lg_global_unlock(&files_lglock);
}
void __init files_init(unsigned long mempages)
@@ -524,6 +524,6 @@ void __init files_init(unsigned long mempages)
n = (mempages * (PAGE_SIZE / 1024)) / 10;
files_stat.max_files = max_t(unsigned long, n, NR_FILE);
files_defer_init();
lg_lock_init(files_lglock);
lg_lock_init(&files_lglock, "files_lglock");
percpu_counter_init(&nr_files, 0);
}