Simplify the code and remove two mutex operations.
MFC after: 2 weeks
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parent
0705941372
commit
92c0849935
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=159917
@ -1089,23 +1089,19 @@ vfs_write_suspend(mp)
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struct thread *td = curthread;
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int error;
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error = 0;
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MNT_ILOCK(mp);
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if (mp->mnt_kern_flag & MNTK_SUSPEND)
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goto unlock;
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if (mp->mnt_kern_flag & MNTK_SUSPEND) {
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MNT_IUNLOCK(mp);
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return (0);
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}
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mp->mnt_kern_flag |= MNTK_SUSPEND;
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if (mp->mnt_writeopcount > 0)
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(void) msleep(&mp->mnt_writeopcount,
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MNT_MTX(mp), (PUSER - 1)|PDROP, "suspwt", 0);
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else
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MNT_IUNLOCK(mp);
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if ((error = VFS_SYNC(mp, MNT_SUSPEND, td)) != 0) {
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if ((error = VFS_SYNC(mp, MNT_SUSPEND, td)) != 0)
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vfs_write_resume(mp);
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return (error);
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}
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MNT_ILOCK(mp);
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unlock:
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MNT_IUNLOCK(mp);
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return (error);
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}
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