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[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

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This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <[email protected]>

(finished the conversion)

Signed-off-by: Jes Sorensen <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Jes Sorensen 2006-01-09 15:59:24 -08:00 • committed by Ingo Molnar
commit 1b1dcc1b57
113 changed files with 563 additions and 573 deletions
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8
mm/swapfile.c
View file

@ -1187,9 +1187,9 @@ asmlinkage long sys_swapoff(const char __user * specialfile)
set_blocksize(bdev, p->old_block_size);
bd_release(bdev);
} else {
down(&inode->i_sem);
mutex_lock(&inode->i_mutex);
inode->i_flags &= ~S_SWAPFILE;
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
}
filp_close(swap_file, NULL);
err = 0;
@ -1406,7 +1406,7 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags)
p->bdev = bdev;
} else if (S_ISREG(inode->i_mode)) {
p->bdev = inode->i_sb->s_bdev;
down(&inode->i_sem);
mutex_lock(&inode->i_mutex);
did_down = 1;
if (IS_SWAPFILE(inode)) {
error = -EBUSY;
@ -1596,7 +1596,7 @@ out:
if (did_down) {
if (!error)
inode->i_flags |= S_SWAPFILE;
up(&inode->i_sem);
mutex_unlock(&inode->i_mutex);
}
return error;
}